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The effect of irradiance versus light dose on the antioxidant activity of two strains of Ulva lacinulata Botanica Mar. (IF 2.2) Pub Date : 2024-03-11 Isabel Cardoso, Anneke Meiβner, Laurie C. Hofmann
The genus Ulva, described as a good source of antioxidants known for its antibacterial properties and associated with the capacity to adapt to different environments and high growth rates, has justified the increasing interest in its large-scale production. While extensive research has been done on optimizing the extraction of Ulva’s bioactive compounds, few studies were conducted on increasing or
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Genetic analysis of Ulva (Ulvaceae, Chlorophyta) type specimens resolves northeast Pacific blade-forming species Botanica Mar. (IF 2.2) Pub Date : 2024-03-08 Jeffery R. Hughey, Kathy Ann Miller, Paul W. Gabrielson
Misapplication of Ulva epithets in GenBank has led to confusion in the scientific literature and community. To solve some of the problems, targeted DNA sequencing of plastid encoded rbcL gene amplicons or high-throughput sequencing was performed on all blade-forming Ulva type specimens from the northeast Pacific. Recently collected specimens from at or near type localities were also analyzed for some
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Bioactivity and chemical screening of endophytic fungi associated with the seaweed Ulva sp. of the Bay of Bengal, Bangladesh Botanica Mar. (IF 2.2) Pub Date : 2024-03-06 Sadia Noor, Mst. Nadira Begum, Satyajit Roy Rony, Mohammad Zashim Uddin, Md. Hossain Sohrab, Md. Abdul Mazid
Several studies have shown that endophytic fungal metabolites possess vital biological activities; nevertheless, there is a lack of knowledge regarding the medicinally important marine endophytic fungi associated with the seaweeds mainly found in the Bay of Bengal, Bangladesh. In this study, six endophytic fungi, belonging to five genera and four classes, were isolated from the well-known chlorophyte
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Germanium dioxide as agent to control the biofouling diatom Fragilariopsis oceanica for the cultivation of Ulva fenestrata (Chlorophyta) Botanica Mar. (IF 2.2) Pub Date : 2024-02-23 Ralf Rautenberger
During the cultivation of Ulva fenestrata in a land-based aquaculture system, the colonisation of the water tanks’ surfaces and eventually the macroalgal biomass by the biofouling diatom Fragilariopsis oceanica compromises the production process. Since germanium dioxide (GeO2) is an effective growth inhibitor of diatoms, this study aimed to understand how it affects the presence of F. oceanica and
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Updating the Ulvaceae in the green seaweeds of Britain and Ireland Botanica Mar. (IF 2.2) Pub Date : 2024-02-22 Christine A. Maggs, Anne R. Bunker, Francis St. P. D. Bunker, David Harries, John Kelly, Frédéric Mineur, Jaanika Blomster, Pilar Díaz-Tapia, Paul W. Gabrielson, Jeffery R. Hughey, Juliet Brodie
The 2007 flora “Green Seaweeds of Britain and Ireland” did not present the molecular data underpinning the Ulvaceae treatment, mostly ITS sequences. Subsequently, names have changed as type material of Ulva species is sequenced and intensive sampling with DNA barcoding adds new European species. To update the Ulvaceae, we systematically sampled from 2007 to 2021, identifying specimens using various
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Taxonomic assessment of blade-forming Ulva species (Ulvales, Chlorophyta) in the Galápagos Archipelago, Ecuador using DNA sequencing Botanica Mar. (IF 2.2) Pub Date : 2024-02-17 Paul W. Gabrielson, Anna Claire Smith, John F. Bruno, Todd J. Vision, Margarita Brandt
DNA sequences were obtained from 32 blade-forming Ulva specimens collected in 2018 and 2019 from four islands in the Galápagos Archipelago: Fernandina, Floreana, Isabela and San Cristóbal. The loci sequenced were nuclear encoded ITS and plastid encoded rbcL and tufA, all recognized as barcode markers for green algae. Four species were found, Ulva adhaerens, U. lactuca, U. ohnoi and U. tanneri, all
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Environmental gradients influence geographic differentiation and low genetic diversity of morphologically similar Ulva species in the Northwest Pacific Botanica Mar. (IF 2.2) Pub Date : 2024-02-14 Kai-Le Zhong, Masanori Hiraoka, Xu Gao, Bayden Russell, Zi-Min Hu, Weizhou Chen, Ju-Hyoung Kim, Norishige Yotsukura, Hikaru Endo, Naohiro Oka, Shinya Yoshikawa, Juan Diego Gaitan-Espitia
Species classified in the genus Ulva are important foundational marine primary producers distributed worldwide. These species are particularly abundant and diverse through the northwest Pacific (NWP) where they experience marked latitudinal gradients of environmental heterogeneity. It is unclear, however, to what extent such dynamic conditions can modulate phenotypic and genetic patterns in these organisms
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New morphological data for two rare species of sand-dwelling marine dinoflagellates, Amphidiniella sedentaria and Pachena cf. leibnizii Botanica Mar. (IF 2.2) Pub Date : 2024-02-01 Marina S. Selina, Tatiana V. Morozova
Benthic dinoflagellates have been the subject of extensive taxonomic research in recent decades. Studies of morphologies of already known species of benthic dinoflagellates from various geographical populations remain relevant, as these allow elucidation of some details that were overlooked in the original species descriptions or assessment of their morphological variability. In the present study,
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Grazing of free-living Pylaiella littoralis by the amphipod Gammarus tigrinus Botanica Mar. (IF 2.2) Pub Date : 2024-01-10 Steven L. Miller, Robert T. Wilce
Pylaiella littoralis is a brown alga with a cosmopolitan distribution. A free-living form of the alga fouls the beaches of Nahant, Massachusetts (USA). The amphipod Gammarus tigrinus is found within the floating drifts of algae. Gut contents confirmed that G. tigrinus consumed P. littoralis. Significantly, culture studies revealed that ingested P. littoralis survives and grows from fecal pellets produced
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Prevalence history of morphological variants of Cerataulina resting spores in Indian Sundarbans and resultant phylogenetic analysis Botanica Mar. (IF 2.2) Pub Date : 2024-01-10 Neera Sen Sarkar, Biswajit Biswas, Manjushree Mandal, Tapas Das, Sanoyaz Sekh
Fifteen morphological variants of resting spores of the diatom Cerataulina are presented with morphometric characters and presence in different habitats over spatial and temporal regimes in the Indian Sundarbans. Spatial regime includes phytoplankton assemblages, river-bank surface sediments and different depths of short sediment cores of adjacent deltaic landmasses. The temporal regime spans a period
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Chondrus retortus (Gigartinales, Rhodophyta) in Hawai‘i: a taxonomic and biogeographic puzzle Botanica Mar. (IF 2.2) Pub Date : 2024-01-10 Ronald P. Kittle, Anne Veillet, William E. Schmidt, Suzanne Fredericq, Karla J. McDermid
Members of the genus Chondrus are well-known from temperate and cold waters. Chondrus ocellatus Holmes was reported from Hawai‘i Island (19° N latitude) in 1999 as a new record based on vegetative and tetrasporangial characteristics. The first specimens were collected by Setchell in 1900 in Hilo, HI. The presence of a Chondrus species in the subtropics has been a phycological enigma for over 100 years
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First record of a cylindrical Dipterocladia (Ceramiales, Delesseriaceae), D. cylindrica sp. nov., from Korea based on morphological and molecular analyses Botanica Mar. (IF 2.2) Pub Date : 2024-01-08 Jeong Chan Kang, Mi Yeon Yang, Yeo Kyeong Oh, Myung Sook Kim
We describe a new species, Dipterocladia cylindrica, found in the subtidal zone of the eastern and southern coasts of Korea. This species has cylindrical branches with numerous sub-dichotomously branching monosiphonous determinate branchlets without adventitious filaments, heavy cortication throughout the thallus, and alternating clockwise periaxial cell formation. The external features of the new
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Seasonal and culture period variations in the lipid and fatty acid content of Ulva lactuca cultivated in Mikhmoret onshore (Israel) Botanica Mar. (IF 2.2) Pub Date : 2024-01-04 Nabeel Gnayem, Razan Unis, Rima Gnaim, Alexander Chemodanov, Álvaro Israel, Jallal Gnaim, Alexander Golberg
The use of high-value fatty acids (FA), omega-3 (n-3), and omega-6 (n-6) from seaweed could relieve the pressure from natural wild fish sources and reduce overfishing worldwide. This research is designed to explore how the harvest season (winter, spring, and summer) and culture period influence the biomass production yield, lipid content, and FA composition in the green seaweed Ulva sp. The studied
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A new species of Craspedostauros (Bacillariophyceae) from the west coast of Sweden, with taxonomic and ecological notes on Craspedostauros laevissimus Botanica Mar. (IF 2.2) Pub Date : 2024-01-04 Adil Y. Al-Handal, Matt P. Ashworth, Angela Wulff
Since its separation from Stauroneis in 1999, several new species of Craspedostauros were discovered in a variety of habitats and geographic locations, adding morphological and phylogenetic data to the investigations of the genus. In a survey of littoral diatoms of Sweden, both on the west and east coasts, two epiphytic stauros-bearing species were encountered and assigned to Craspedostauros following
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Gayralia brasiliensis Pellizzari M.C. Oliveira et N.S. Yokoya (Gayraliaceae Ulotrichales): a new record for Indian waters based on morphological and molecular analysis Botanica Mar. (IF 2.2) Pub Date : 2023-12-26 Monica Gajanan Kavale, Mudassar Anisoddin Kazi, Kanchan Udata
Gayralia brasiliensis Pellizzari, M.C. Oliveira et N.S. Yokoya (Gayraliaceae Ulotrichales), a new record for Indian waters, is described based on morphological, anatomical, and molecular characterization. Gayralia brasiliensis was growing luxuriantly towards the upper limit of the intertidal zone at Shirgaon Creek, Maharashtra, west coast of India. The thalli were pale green in color, growing mat-like
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Morphology, molecular phylogeny and toxicity of Fukuyoa paulensis (Dinophyceae) from the Bay of Bengal, North Indian Ocean Botanica Mar. (IF 2.2) Pub Date : 2023-12-04 Oyeshina G. Oyeku, Subir K. Mandal
Fukuyoa species are potential producers of polyether neurotoxins that are toxic to aquatic biota and humans. A strain of Fukuyoa (CSIRCSMCRI 004) was isolated from India’s Bay of Bengal coast. The clonal culture was identified using light and scanning electron microscopy and molecular phylogenetic analysis of the LSU rRNA gene and ITS (ITS1-5.8S gene-ITS2) sequences. Its toxicity was assessed using
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Vertical distribution of brown and red macroalgae along the central Western Antarctic Peninsula Botanica Mar. (IF 2.2) Pub Date : 2023-11-29 Charles D. Amsler, Margaret O. Amsler, Sabrina Heiser, James B. McClintock, Katrin Iken, Aaron W. E. Galloway, Andrew G. Klein
Fleshy macroalgae dominate the hard bottom, shallow waters along the Western Antarctic Peninsula (WAP). Although there are numerous reports on their ecology, geographic distribution, and to a lesser extent, vertical (depth) distribution in the northern portions of the WAP, much less is known farther south along the central portion of the WAP. Here we provide the first report of the vertical distributions
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Long-term unialgal seaweed cultivation in artificial seawater without water change. I. Laboratory investigations of Ulva Botanica Mar. (IF 2.2) Pub Date : 2023-11-21 Klaus Lüning
Unialgal stock cultures for seeding the tank water can be used for the mass cultivation of seaweeds in artificial seawater, as in microalgal mass cultivation. High costs for artificial sea salt mixtures and distilled water would be required, however, to use artificial seawater in big tanks for commercial purposes, but frequent medium changes may not be required, since the major ions contained in artificial
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Assessing fungi in Portuguese marine environments: how many species? Botanica Mar. (IF 2.2) Pub Date : 2023-11-09 Egídia Azevedo, Margarida Barata, Maria Filomena Caeiro
The present review documents the diversity of marine fungi collected in Portuguese marine environments (sandy beaches, salt marshes and marinas) from studies over the past 30 years and results from new data. One hundred and ninety fungal species are reported (mainly identified by morphology, with 63 species at the same time identified by molecular approaches), of which 156 are currently listed as marine
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The use of macroalgal hydrolysate as a carbon source in the lipid production of the marine heterotrophic dinoflagellate Crypthecodinium AL–05 Botanica Mar. (IF 2.2) Pub Date : 2023-11-07 Mohamed A. Abdel-Wahab, Abdallah M. Elgorban, Ali H. Bahkali
Crypthecodinium cohnii strains can accumulate significant amounts of lipids with a high fraction of docosahexaenoic acid that is used in pharmaceutical and nutraceutical applications. In this study, macroalgal hydrolysate was used as a low-cost carbon source for the growth of the oleaginous strain Crypthecodinium sp. AL–05 to reduce the cost of its growth and lipid production. The Saudi strain was
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Diversity and distribution of species of the planktonic dinoflagellate genus Alexandrium (Dinophyta) from the tropical and subtropical Mexican Pacific Ocean Botanica Mar. (IF 2.2) Pub Date : 2023-11-06 David U. Hernández-Becerril, Jorge G. Pichardo-Velarde, Rosalba Alonso-Rodríguez, Ebodio Maciel-Baltazar, Lourdes Morquecho, Karina Esqueda-Lara, Sofía A. Barón-Campis, Nataly Quiroz-González
Species of the dinoflagellate genus Alexandrium are marine and planktonic forms, widely distributed, and some are recognized to form harmful algal blooms and to produce saxitoxins causing Paralytic Shellfish Poisoning in humans, and other toxins. We studied the species composition of Alexandrium in tropical and subtropical coastal areas of the Mexican Pacific: from the southern Gulf of California to
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Laurencia mediterranea sp. nov. (Ceramiales, Rhodophyta) from the central Mediterranean Sea Botanica Mar. (IF 2.2) Pub Date : 2023-11-06 Angela G. Bartolo, Gabrielle Zammit, Eleni Kytinou, Frithjof Christian Küpper
The identification of macroalgal species within the Laurencia complex is challenging, due to the presence of inconspicuous morphological characters, extensive variation in these traits and a diverse biogeography. Moreover, for a number of these species, no DNA sequence data are available in online databases. For this study, five algal specimens, tentatively assigned to Laurencia, were collected from
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Acoustic scattering properties of a seagrass, Cymodocea nodosa: in-situ measurements Botanica Mar. (IF 2.2) Pub Date : 2023-10-31 Erhan Mutlu, Cansu Olguner
Marine prairies play various crucial roles in marine ecosystems. The seagrasses that compose them are one of the most important components engineering the marine coastal system, providing significant spatial niches. Some of the seagrasses found in marine prairies are protected, and it is not recommended to sample them with destructive methods. Non-destructive methods such as remote sensing have been
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Gelidiella papillosa sp. nov. (Gelidiellaceae, Rhodophyta) from Veracruz, Mexico, in the context of the worldwide distribution of G. acerosa Botanica Mar. (IF 2.2) Pub Date : 2023-10-31 María Luisa Núñez Resendiz, Abel Sentíes, Kurt M. Dreckmann, Oscar E. Hernández, Martha Isabel Vilchis
Gelidiella acerosa is a widely distributed species, with type locality in Yemen, whose morphology has been characterized by decumbent axes from which numerous abundantly branched erect axes emerge, pectinate, alternate or radial. Recent phylogenetic studies have revealed the presence of genetically independent groups throughout its distribution range. However, these groups cannot be described as independent
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High-temperature stress induces bacteria-specific adverse and reversible effects on Ulva (Chlorophyta) growth and its chemosphere in a reductionist model system Botanica Mar. (IF 2.2) Pub Date : 2023-10-27 Imen Hmani, Fatemeh Ghaderiardakani, Leila Ktari, Monia El Bour, Thomas Wichard
Axenic cultures of the green seaweed Ulva mutabilis were inoculated with bacteria providing essential algal growth and morphogenesis-promoting factors (AGMPFs) and were exposed to temperature shifts from 18 °C to 30 °C. The temperature-dependent effect of bacteria on longitudinal algal growth and the molecular composition of the chemosphere in the algal culture medium was explored. The reductionist
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Record of the unarmored dinoflagellate Gynogonadinium aequatoriale (Ceratoperidiniaceae, Dinophyceae) in the Mediterranean Sea Botanica Mar. (IF 2.2) Pub Date : 2023-10-26 Fernando Gómez
The records of the unarmored dinoflagellate Gynogonadinium aequatoriale have been restricted to the western equatorial and the eastern tropical Pacific Ocean. The genus is reported for the first time in the Mediterranean Sea from the coast of Taranto, Ionian Sea. This is a distinctive taxon that can only be confused with the cosmopolitan Pseliodinium fusus (=Ceratoperidinium falcatum). A comparison
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Differences between the wild-type and cultivated Gracilariopsis lemaneiformis revealed by quantitative proteome and gene expression profiling analysis Botanica Mar. (IF 2.2) Pub Date : 2023-10-09 Xiao Ying, Wenkang Chen, Qionglin Chen, Xiaoqian Zhang, Nianjun Xu, Xue Sun
The seaweed Gracilariopsis lemaneiformis is widely cultivated in the southern and northern coasts of China, and is mainly used for agar extraction and abalone feed. The cultivated strain of G. lemaneiformis 981 has various advantages over the wild type such as growth rate and high-temperature tolerance. Therefore, it is necessary to investigate the differences between the wild-type and cultivated G
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Ecophysiology of Kuwaiti macroalgae with special emphasis on temperature and salinity tolerance related to the conditions at desalination plant outfalls Botanica Mar. (IF 2.2) Pub Date : 2023-10-09 Amal H. Hajiya Hasan, Dhia A. Al-Bader, Steve Woodward, Akira F. Peters, Frithjof C. Küpper
Brine discharged from seawater desalination plants impacts marine life by exposure to increased salinity and, in some cases, temperature. However, the responses of individual species to such stress remains poorly known yet their understanding is essential for assessing and predicting the impacts of seawater desalination plants. In this study, unialgal cultures obtained by the germling emergence method
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History of marine mycology – a personal perspective Botanica Mar. (IF 2.2) Pub Date : 2023-10-05 E. B. Gareth Jones
This article is a personal impression of the key scientists who contributed to the study of marine mycology over past 174 years, especially those the author met during his career studying this unique group of fungi. Marine mycology has been a journey of discovery from a few species to nearly 2000 taxa in nine fungal phyla. Techniques for their study have advanced from morphological observations, to
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Stable isotope values (δ 13C, δ 15N) of macroalgal communities at Loch Creran and its relevance for elucidating sources of macroalgal organic carbon in fjordic sedimentary systems Botanica Mar. (IF 2.2) Pub Date : 2023-10-03 Alexander Bebb, Imogen Hawkins, Richard Gwynne-Jones, Ruth Helmore, Ursula Witte
Here, macroalgal isotopic values from Loch Creran, Western Scotland, were documented to determine the suitability of paired stable isotope analysis for identifying macroalgal-derived organic carbon sources in a fjordic sea loch. Variability in isotopic values (δ 13C and δ 15N) was evident within individual thalli of fucoid and kelp species, at the replicate level and between sampling localities. There
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Diversity of marine fungi in Pondicherry mangroves, east coast of India and systematic placement of Rhizophila marina Botanica Mar. (IF 2.2) Pub Date : 2023-09-13 Bandarupalli Devadatha, Revanth Babu Pallam, Sarma Venkateswara Vemuri
Although many novel marine fungi have been described from Indian mangroves, a significant number of mangroves in India have not been thoroughly investigated for marine fungi. This study highlights the diversity of marine fungi inhabiting dead and decaying wood of Avicennia marina and Rhizophora mucronata, collected from Thengaithittu and Veerampattinam mangroves of Pondicherry, Puducherry State, India
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Species diversity of the brown alga Lobophora (Dictyotales) in the Con Co Island Marine Protected Area, Vietnam Botanica Mar. (IF 2.2) Pub Date : 2023-09-06 Duc Tien Dam, Manh Linh Nguyen, Myung-Sook Kim, Christophe Vieira
We reevaluated species diversity of the brown alga Lobophora in Vietnam’s Con Co Marine Protected Area (MPA), where only one species had previously been reported. Integrating morphological, ecological, and molecular analyses, we redefined the genus diversity, identifying nine species including two new ones: L. asiatica, L. boussoleae, L. lamourouxii, L. obscura1, L. pachyventera3, L. thailandensis
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An overview of fungal taxonomic, functional, and genetic diversity in coastal and oceanic biomes in megadiverse Mexico Botanica Mar. (IF 2.2) Pub Date : 2023-09-04 Julio Olguin, Patricia Velez, Vivianne Solís-Weiss, Alejandra Barrios, Allison K. Walker, Guadalupe Ponce-Vélez, María C. González, Mario Figueroa, Alfonso Botello
A comprehensive literature review of mycodiversity in sandy beaches and oceanic environments in Mexico is presented through the analysis of published works from 1949 to early 2023. In addition, four unexplored sandy beaches in the Pacific Ocean and Gulf of California were sampled in order to fill knowledge gaps in terms of sampling biases. Marine fungi of Mexico were reported from water column, sediment
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Alveolate species of Mastogloia (Bacillariophyceae, Mastogloiales), including M. frickei Hustedt 1933 from Guam and two renamed species from Florida Botanica Mar. (IF 2.2) Pub Date : 2023-08-22 Christopher S. Lobban, Thomas A. Frankovich
Mastogloia frickei Hustedt was found in Guam and studied with scanning electron microscopy. A species known by that name in Florida/Bahamas is shown to be a different species and is described as Mastogloia floridensis sp. nov. Both have alveolate striae, which is unusual in the genus. A third alveolate species was present in Florida samples and had been misidentified previously. It is described as
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Surf-diatoms from sandy beaches on the Eastern Coast of South America (Brazil): the identification of Anaulus Ehrenberg and Asterionellopsis Round Botanica Mar. (IF 2.2) Pub Date : 2023-08-21 Andréa de Oliveira da Rocha Franco, Matt Peter Ashworth, Debbie Du Preez, Eileen Campbell, Rodrigo Maggioni, Schonna R. Manning, Clarisse Odebrecht
“Surf diatoms” can form high biomass in the surf zone of sandy beaches around the world, Asterionellopsis and Anaulus being the main genera of this group in Brazil. Asterionellopsis glacialis was considered a cosmopolitan species, and taxonomic studies using molecular and morphological tools showed that A. glacialis is a complex with cryptic and semicryptic species. So, it would be plausible to suppose
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Updates on the classification and numbers of marine fungi Botanica Mar. (IF 2.2) Pub Date : 2023-07-21 Mark S. Calabon, E.B. Gareth Jones, Ka-Lai Pang, Mohamed A. Abdel-Wahab, Jing Jin, Bandarupalli Devadatha, Resurreccion B. Sadaba, Carlo Chris Apurillo, Kevin D. Hyde
This article revises the documented diversity of known marine fungi from nine phyla, 33 classes, 107 orders, 273 families, 767 genera and 1898 species reported worldwide. A member of the Aphelidiomycota, Pseudaphelidium drebesii, is reported for the first time from the marine environment, on a diatom. Likewise, the phylum Mortierellomycota is listed following taxonomic changes, as are six subclasses:
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Diversity of fungi from marine inundated wood from the Bay of Fundy, Nova Scotia, Canada Botanica Mar. (IF 2.2) Pub Date : 2023-07-12 Sarah J. Adams, Allison K. Walker
Marine fungi play an integral role in the decomposition of intertidal organic substrata but remain understudied in cold-water habitats including Atlantic Canada. Marine inundated wood from the intertidal zone was sampled from 30 sites along the Bay of Fundy coastline in Nova Scotia, Canada. Wood types studied included attached and loose intertidal wood, and driftwood. Emergent fungi were cultured and
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A review of polyunsaturated fatty acids (PUFA) of marine zoosporic microorganisms and their commercialization Botanica Mar. (IF 2.2) Pub Date : 2023-06-29 Diganta Kumar Saikia, Channakeshavaiah Chikkaputtaiah, Natarajan Velmurugan
Long-chain polyunsaturated fatty acids (LC-PUFA) are nutritionally and pharmacologically well-recognized beneficial compounds widely used as nutrient supplements for various applications. As the human body cannot accomplish de novo synthesis of PUFA, we depend on exogenous bioresources for the supply of these essential PUFA for day-to-day activities. The PUFA global market is expected to reach about
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Genetic diversity of culturable fungi associated with scleractinian corals in the Gulf of Thailand Botanica Mar. (IF 2.2) Pub Date : 2023-06-26 Sirapong Papan, Sita Preedanon, Supicha Saengkaewsuk, Anupong Klaysuban, Noppol Kobmoo, Sittiporn Pengsakun, Thamasak Yeemin, Satinee Suetrong, Jariya Sakayaroj
Coral reefs are one of the most biodiverse marine ecosystems. Diverse microbes are associated with corals, including zooxanthellae, protists, prokaryotes, and viruses. This study aimed to investigate the genetic diversity of the culturable fungi associated with scleractinian corals in the Gulf of Thailand. Ribosomal DNA sequence analysis and morphological analysis of 130 fungal isolates revealed a
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Recent progress in marine mycological research in different countries, and prospects for future developments worldwide Botanica Mar. (IF 2.2) Pub Date : 2023-06-26 Ka-Lai Pang, E. B. Gareth Jones, Mohamed A. Abdel-Wahab, Sarah J. Adams, Artur Alves, Egídia Azevedo, Ali H. Bahkali, Margarida Barata, Gaëtan Burgaud, Maria Filomena Caeiro, Mark S. Calabon, Bandarupalli Devadatha, Joëlle Dupont, Sally C. Fryar, Maria C. González, Jing Jin, Mohamed Mehiri, Laurence Meslet-Cladière, Soizic Prado, Teppo Rämä, Marlis Reich, Catherine Roullier, Vemuri Venkateswara Sarma
Early research on marine fungi was mostly descriptive, with an emphasis on their diversity and taxonomy, especially of those collected at rocky shores on seaweeds and driftwood. Subsequently, further substrata (e.g. salt marsh grasses, marine animals, seagrasses, sea foam, seawater, sediment) and habitats (coral reefs, deep-sea, hydrothermal vents, mangroves, sandy beaches, salt marshes) were explored
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Diversity of fungi isolated from carapace and gut of the marine crab Portunus sanguinolentus in northern waters of Taiwan Botanica Mar. (IF 2.2) Pub Date : 2023-06-26 Ami Shaumi, U-Cheang Cheng, Sheng-Yu Guo, E.B. Gareth Jones, Tin-Yam Chan, Ka-Lai Pang
The fungal community associated with marine crabs is poorly known, except for the fungi causing diseases of marine animals of economic value. In this study we examined the diversity of fungi cultured from carapace and gut of the marine crab Portunus sanguinolentus, and the identification was based on nucleotide BLAST search results of the internal transcribed spacers of rDNA (ITS). A total of 256 fungal
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Salinity and temperature affect growth rate of Alphamyces chaetifer and Gorgonomyces haynaldii (Chytridiomycota) isolated from coastal habitats of Taiwan Botanica Mar. (IF 2.2) Pub Date : 2023-06-20 Sheng-Yu Guo, E.B. Gareth Jones, Michael W.L. Chiang, Ka-Lai Pang
Salinity and temperature are two of the key environmental variables influencing the distribution of fungi. Results from the limited research available on the effects of salinity and temperature on growth and reproduction of chytrids were inconclusive. This study investigated the combined effects of salinity (0, 1, 2, 4, 8, 16, 32) and temperature (17, 24, 30 °C) on the growth rate of Alphamyces chaetifer
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Characterization of novel estuarine Ascomycota based on taxonomic and phylogenetic evaluation Botanica Mar. (IF 2.2) Pub Date : 2023-06-14 Bandarupalli Devadatha, E. B. Gareth Jones, Dhanushka N. Wanasinghe, Ali H. Bahkali, Kevin D. Hyde
This study introduces two new marine microfungal species, Paraloratospora marina (Phaeosphaeriaceae) and Tremateia phragmitis (Didymosphaeriaceae) based on morphological comparisons and multi-gene phylogenetic analyses. They were collected on decaying woody stems of Phragmites australis at Cardiff Bay Nature Reserve in Wales, United Kingdom. Paraloratospora marina sp. nov. is characterized by immersed
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Effect of sand-influence on the morphology of Mazzaella laminarioides (Rhodophyta, Gigartinales) on rocky intertidal shores Botanica Mar. (IF 2.2) Pub Date : 2023-05-12 Yugreisy Polanco, Ricardo D. Otaíza, Florence Tellier, Karla Pérez-Araneda
Morphological variability is common among macroalgae. In central Chile, Mazzaella laminarioides extends throughout the intertidal rocky zones, where blades are reported to grow up to 20 cm in length. Nevertheless, in low rocky intertidal zones with sand-influence, blades are noticeably larger than in other shores without sand effect. The aim of this study was to compare the morphology of M. laminarioides
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Range expansion of some non-indigenous seaweeds along the coasts of Brittany – English Channel Botanica Mar. (IF 2.2) Pub Date : 2023-04-29 Thomas Burel, Mathieu Helias, Michel Le Duff
Non-indigenous seaweed species have been introduced to the coasts of Brittany, France for decades, with an increasing arrival rate since the 1970s due to both the introduction of the Pacific oyster and increased maritime traffic. In this study, seven species of red macroalgae originating from the Pacific Ocean were found in new locations around the coasts of Brittany between 2018 and 2022. The seaweed
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Biodiversity of epiphytic marine macroalgae in Mexico: composition and current status Botanica Mar. (IF 2.2) Pub Date : 2023-04-24 Nataly Quiroz-González, Luis G. Aguilar-Estrada, Julio A. Acosta-Calderón, Lucía Álvarez-Castillo, Fernando Arriola-Álvarez
Marine epiphyte studies in Mexico, including macroalgae, are lacking in the published literature. Floristic studies have been mainly focused on identifying the algae growing on rocky substrata, and epiphytic algae have been recorded, but only occasionally. The aim of this work is to establish the current state of knowledge of the epiphytic macroalgae and their hosts on the Mexican coasts. A systematic
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Genetic differentiation of Gracilaria changii and Gracilaria firma (Gracilariaceae, Rhodophyta) based on chloroplast genome Botanica Mar. (IF 2.2) Pub Date : 2023-04-21 Sze-Looi Song, Hoi-Sen Yong, Teck-Toh Tan, Phaik-Eem Lim, Siew-Moi Phang
The Gracilariaceae are important in the biotechnology industry and microbiology research. Some Gracilaria species are difficult to identify morphologically and molecular phylogenetic data hold a key role in species level identification. In this study, the chloroplast genomes of G. changii and G. salicornia from the Peninsular Malaysia were sequenced to compare with the published taxa in order to gain
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Neocamarosporium aquaticum (Neocamarosporiaceae, Dothideomycetes), a novel fungus from salt marsh habitats Botanica Mar. (IF 2.2) Pub Date : 2023-03-27 Chasika Prematunga, Saranyaphat Boonmee, E. B. Gareth Jones, Mark S. Calabon
Neocamarosporium aquaticum, collected from a drift dead stem of a halophyte at the Kench Nature Reserve, Hayling Island, UK, is described as a new species in the family Neocamarosporiaceae, Dothideomycetes. Multi-locus analyses based on LSU, SSU, ITS rDNA, and EF1-α placed the new fungus as a distinct species in the genus Neocamarosporium, a sister to Neocamarosporium aesturinum isolated from seawater
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A new species of the red alga Erythrotrichia (Erythropeltales, Rhodophyta) from Korea: Erythrotrichia johnawestii sp. nov. and observations in culture Botanica Mar. (IF 2.2) Pub Date : 2023-03-16 Xianying Wen, Giuseppe C. Zuccarello, Eunyoung Shim, Soo Yeon Kim, Gwang Hoon Kim
Four species of Erythrotrichia (E. biseriata, E. reflexa, E. tetraseriata, E. carnea) have been reported in Korea, but phylogenetic studies have not been conducted on them. We analyzed two newly collected Erythrotrichia isolates using rbcL DNA sequences and determined their species status using four DNA-based species delimitation methods. One isolate (KNU-1) grouped with E. carnea in three methods:
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New record of Halymenia malaysiana (Halymeniaceae, Rhodophyta) from Viet Nam, and its genetic diversity in the western Pacific Botanica Mar. (IF 2.2) Pub Date : 2023-03-13 Xuan-Vy Nguyen, Nhu-Thuy Nguyen-Nhat, Xuan-Thuy Nguyen, Trung-Hieu Nguyen, Si Hai Trinh Truong, Viet-Ha Dao, Anh-Duy Do, Karla J. McDermid
Halymenia malaysiana, one of the foliose species of Halymenia was first reported from Malaysia and showed some morphological features that distinguish it from sister species, such as Halymenia dilatata, Halymenia maculata, and Halymenia porphyraeformis. In this study, Halymenia samples were collected from nine locations along the coast of Viet Nam (8°–17°N) in the South China Sea and Gulf of Thailand
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Desiccation and thermo-tolerance of Fucus guiryi (Phaeophyceae) from its southernmost populations (Canary Islands, Eastern Atlantic) Botanica Mar. (IF 2.2) Pub Date : 2023-03-10 Marcos Adrián Ruiz-Medina, Beatriz Fernández-Marín, Marta Sansón, Carlos Sangil, Águeda María González-Rodríguez
Populations inhabiting the periphery of a species’ distribution suffer the immediate pressure of the environmental changes. Studying their physiology under stressful conditions is essential in the context of climate change. We characterized two morphotypes with measurements of length, thickness and width of the thallus of the macroalga Fucus guiryi in two localities (north and south) in Tenerife (Canary
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Dasya hispida sp. nov. (Delesseriaceae, Rhodophyta) from Puerto Rico and Grenada, Caribbean sea Botanica Mar. (IF 2.2) Pub Date : 2023-03-08 David L. Ballantine, James N. Norris, Gabe P. Johnson, Hector J. Ruiz
A new subtidal species of Dasya is reported from offshore algal plains of Puerto Rico and Grenada in the Caribbean. Closely invested with pigmented lateral branchlets giving the alga a shaggy appearance, the species bears close resemblance and genetic affinity to the Bermudian Dasya cryptica and a superficial resemblance to Pacific D. anastomosans. The new species differs from all known Atlantic congeners
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First record of phytomyxid infection of the non-native seagrass Halophila stipulacea in Puerto Rico Botanica Mar. (IF 2.2) Pub Date : 2023-02-27 James E. Kaldy, Cayla Sullivan, Angel Dieppa, Ivelisse Cappielo Cosme, Marco Orizondo Lugo, Michael Schiebout
Halophila stipulacea is an invasive seagrass in the Caribbean Sea that also harbors a phytomyxid endoparasite. Phytomyxean parasites are known to cause disease in agricultural crops and are documented to form galls in some seagrass species. Here we make the first report of phytomyxid infection of Halophila stipulacea in the Bahía de Jobos in Salinas, Puerto Rico. We found phytomyxid infected H. stipulacea
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Ultrastructural characterization of Minutocellus polymorphus (Cymatosiraceae, Bacillariophyta) and first record from the Eastern Pacific Botanica Mar. (IF 2.2) Pub Date : 2023-02-27 Sinuhé Hernández-Márquez, María Eugenia Zamudio-Resendiz, María Luisa Núñez-Reséndiz, Alexis Escarcega-Bata, Abel Sentíes
The diatom Minutocellus polymorphus is a widely studied species because it is an ideal model for toxicity tests since it grows rapidly. Although the gross morphology has been extensively described, the ultrastructural characters associated with its importance, are unknown. It is also the only species in the genus that has been documented in the North American Atlantic, but unknown on the Eastern Pacific
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Arenicolous marine fungi of sandy beaches of Taiwan Botanica Mar. (IF 2.2) Pub Date : 2023-02-14 Ka-Lai Pang, I-An Chen, Michael Wai-Lun Chiang, Ami Shaumi, Sung-Yuan Hsieh, Sheng-Yu Guo
This study investigated the morphological diversity of arenicolous marine fungi (only those forming fruiting bodies on sand grains) at 11 sandy beaches in Taiwan. The species of Corollospora were identified by ascospore morphology and confirmed through a phylogenetic analysis of the 28S rDNA with other published sequences. The phylogenetic analysis revealed four previously unknown clades of Corollospora
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From Tasmania to the world: long and strong traditions in seaweed use, research, and development Botanica Mar. (IF 2.2) Pub Date : 2023-01-25 Catriona L. Hurd, Jeffrey T. Wright, Cayne Layton, Elisabeth M. A. Strain, Damon Britton, Wouter Visch, Neville Barrett, Scott Bennett, Kim Jye Lee Chang, Graham Edgar, J. Helen Fitton, Dean Greeno, Ian Jameson, Craig R. Johnson, Sam S. Karpiniec, Gerald T. Kraft, Scott D. Ling, Catriona M. Macleod, Ellie R. Paine, Ahyoung Park, J. Craig Sanderson, Matthias Schmid, Fiona J. Scott, Victor Shelamoff
Tasmania is an island state in south-eastern Australia that has a long and rich history of seaweed use, research, and development. It is a cool-temperate system with 750 macroalgal species currently described. Tasmanian Aboriginal peoples have lived on this land for at least 40,000 years utilising seaweed as food, shelter, water carriers and medicine, as well as for ceremonial reasons. Modern taxonomic
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Nitzschia venerata, sp. nov., a simulacrum for the conopeate, tube-dwelling diatom Nitzschia martiana, has scuta not conopea: a case of convergent evolution? Botanica Mar. (IF 2.2) Pub Date : 2023-01-03 Christopher S. Lobban
Nitzschia martiana, recently restored to Homoeocladia (C. Agardh) emend Lobban et Ashworth, has needle-like cells and forms macroscopic colonies that are so distinctive that they have been reported on the basis of light microscopy alone. It is the type species for Homoeocladia, which have long flaps (conopea) arising from the sternum and covering a valve depression. This group has extreme diversity
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Inconsistency between morphological diversity and genetic structuring: proposal for one species of Undaria in Japan Botanica Mar. (IF 2.2) Pub Date : 2023-01-03 Shinya Uwai, Satomi Takagi, Takuma Sekiguchi, Nozomi Emura, Teruwo Morita, Akira Kurashima, Yoichi Sato
Genetic structure analyses have yielded some examples of inconsistencies between genetic and morphological information. Here, eleven nuclear microsatellite markers and mitochondrial haplotypes were used to examine the genetic structure and gene flow among Japanese Undaria pinnatifida populations and the congeneric species U. undarioides and U. peterseniana. Undaria pinnatifida was subdivided into four
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Evidence for the reinstatement of Kallymeniopsis and the merger of the family Crossocarpaceae within the family Kallymeniaceae (Rhodophyta) Botanica Mar. (IF 2.2) Pub Date : 2023-01-03 Anna V. Skriptsova, Svetlana Yu. Shibneva, Alexander A. Semenchenko
We present a three-gene phylogeny, based on nuclear (short fragment of large subunit ribosomal RNA gene, 1150 base pairs), chloroplast (ribulose-1,5-bisphosphate carboxylase/oxygenase large subunit) and mitochondrial (5′ region of the cytochrome oxidase subunit 1) genes, to determine the position of three species, Kallymeniopsis verrucosa, Beringia castanea and Crossocarpus lamuticus in the Gigartinales
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New observations on the rarely reported tropical dinoflagellates Tripos lanceolatus and T. schroeteri from the Colombian Caribbean, South Pacific and Indian Oceans Botanica Mar. (IF 2.2) Pub Date : 2022-12-22 Luis Castro-Cera, Darío Vega-Díaz, Ruth S. Eriksen, Karine Leblanc, Gustaaf M. Hallegraeff
We report the circumtropical dinoflagellate Tripos lanceolatus (Kofoid) F. Gómez from the Colombian Caribbean, provide a new record from the tropical western Pacific off Tonga, and the first record from the Australian sector of the Indian Ocean. We present the first scanning electron micrographs of thecal ornamentation and apical pore structure which show its morphological similarities to T. furca