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Introduction to the Special Issue on Parasitic Flowering Plants in Forests Botany (IF 1.1) Pub Date : 2024-03-01 David C. Shaw, Luiza Teixeira-Costa, David M. Watson, Simon F. Shamoun
Botany, Volume 102, Issue 3, Page 56-57, March 2024.
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Perspectives on the reclassification of taxa in the Arceuthobium campylopodum complex (Viscaceae) Botany (IF 1.1) Pub Date : 2024-02-28 Shawn C. Kenaley, Robert L. Mathiasen
Botany, Ahead of Print. The taxonomic classification of dwarf mistletoes (Arceuthobium spp., Viscaceae) in series Campylopoda requires a multi-trait approach, integrating plant genetics, morphologies, and phenologies as well as their host and geographic distributions. Thus, competing interpretations on the contribution of these traits to defining species and subspecies boundaries has spurred considerable
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Leaf developmental patterns of two species of Baccharis (Asteraceae): an analysis based on cell wall pectins Botany (IF 1.1) Pub Date : 2024-02-09 Joseline de Fátima Antunes, Vinícius Coelho Kuster, Thiago Alves Magalhães, Denis Coelho de Oliveira
Botany, Ahead of Print. The cell wall plays a primary role in plant growth, which is regulated by cellulose microfibrils, proteins, and pectins. Regarding pectins, the rate of homogalacturonan (HG) methylesterification and the type of rhamnogalacturonan side chains can mediate leaf development. Herein, we evaluated pectic compounds of the cell walls by immunocytochemistry during the leaf development
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Botany editorial—climate and nature crisis is also about the health of plants Botany (IF 1.1) Pub Date : 2024-01-22 Liette Vasseur
Botany, Ahead of Print.
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We do not see evidence for the presence of female gametangia (oospores) in North American Nitellopsis obtusa (Desvaux) J. Groves Botany (IF 1.1) Pub Date : 2024-01-16 Stephen D. Gottschalk, Aurélie Boissezon, Sarah E. Hamsher, Richard M. McCourt, Donna J. Perleberg, Paul M. Skawinski, Robin S. Sleith, Kenneth G. Karol
Botany, Ahead of Print. We contest the recently reported findings that suggest the presence of female gametangia in the North American range of the invasive macroalga Nitellopsis obtusa (Harrow-Lyle, T.J., Ginn, B.K., Kirkwood, A.E., and Melles, S.J. 2023. First report of female gametangia in the invasive macroalga starry stonewort (Nitellopsis obtusa) in North America. Botany, 101: 61–64. doi:10.1139/cjb-2022-0096)
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Note of appreciation Botany (IF 1.1) Pub Date : 2024-01-01
Botany, Volume 102, Issue 1, Page i-i, January 2024.
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Justicia americana exhibits stem density–aboveground biomass relationships and variability in elemental composition and isotopic signature across tissue types and land use gradients Botany (IF 1.1) Pub Date : 2023-12-05 James L. Wood, Emily Huff
Botany, Ahead of Print. Riverine macrophytes are increasingly understood to influence both the physical and chemical dynamics of rivers by creating biogeochemical hotspots and stabilizing benthic sediments. They contribute carbon and nutrients to both aquatic and adjacent terrestrial ecosystems through senescence and herbivory. Here, we report the relationships between Justicia americana biomass, stem
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Lactifluus subg. Lactariopsis (Russulales/Basidiomycota) from Brazilian tropical forests Botany (IF 1.1) Pub Date : 2023-12-01 A.G.S. Silva-Filho, M.C.A. Sá, D.L. Komura, R. Braga-Neto, I.G. Baseia, P. Marinho, J.-M. Moncalvo, M. Roy, F. Wartchow
Botany, Volume 101, Issue 12, Page 570-581, December 2023. Lactifluus subg. Lactariopsis is a well-supported group of milkcaps occurring predominantly in tropical and subtropical ecosystems. This subgenus contains agaricoid and pleurotoid representatives and is the only group with members containing a secondary velum. The results of taxonomic and phylogenetic research into Lactifluus subg. Lactariopsis
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Time to treat the climate and nature crisis as one indivisible global health emergency Botany (IF 1.1) Pub Date : 2023-12-01
Botany, Volume 101, Issue 12, Page i-iii, December 2023.
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Moss regeneration for lithium mine waste rock revegetation in Québec, Canada Botany (IF 1.1) Pub Date : 2023-11-30 Chao Liu, Kathy Pouliot, Sébastien Roy, Line Rochefort
Botany, Ahead of Print. Despite bryophytes being well adapted to various ecological settings, they are rarely considered in reclamation projects. In this study, propagation regenerative capabilities of bryophytes on different substrates (sand, amphibolite, and pegmatite) and conditions (with or without peat amendment, shade and shredding) were tested in greenhouse and field experiments. In the greenhouse
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The importance of taxonomy for determining species distribution: a case study using the disjunct lichen Brodoa oroarctica Botany (IF 1.1) Pub Date : 2023-11-09 H.A. Paquette, R.T. McMullin, Y.F. Wiersma
Botany, Ahead of Print. Species-focused conservation requires a thorough understanding of species’ distributions. Delineating a species’ distribution requires taxonomic knowledge and adequate occurrence data. For plants and fungi, herbaria represent a valuable source of large-scale occurrence data. Advances in digital technology mean that data from many herbarium collections worldwide are now easily
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New species and new record of Candolleomyces (Psathyrellaceae) from India Botany (IF 1.1) Pub Date : 2023-11-01 P.K. Nayana, C.K. Pradeep
Botany, Volume 101, Issue 11, Page 472-484, November 2023. Three species of Candolleomyces D. Wächt. & A. Melzer (Agaricomycetes, Psathyrellaceae) were identified in the course of our studies to characterize the psathyrelloid fungi of Kerala state, India. Among these, two species, e.g., Candolleomyces brunneopileatus and Candolleomyces niveofloccosus, are new to science, while Candolleomyces asiaticus
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Outcrossing rates in the permanent translocation heterozygote Oenothera biennis L. (Onagraceae) Botany (IF 1.1) Pub Date : 2023-10-12 Marc T.J. Johnson, Ryan M. Godfrey
Botany, Ahead of Print. In species that primarily reproduce asexually, occasional sex can have important evolutionary consequences. Many plant species in the genus Oenothera have a genetic system called permanent translocation heterozygosity (PTH), which renders plants functionally asexual when they self-fertilize. PTH results from reciprocal translocations of chromosomes that suppress recombination
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Cannibal plants: intraspecific autoparasitism among host-specific holoparasites Botany (IF 1.1) Pub Date : 2023-10-10 Luiza Teixeira-Costa
Botany, Ahead of Print. Intraspecific autoparasitism, the phenomenon in which a parasite serves as the host for another individual of the same species, is a well-described interaction among hemiparasitic flowering plants. Here, I describe a rare case of autoparasitism in Epifagus virginiana (L.) W.P.C. Barton (Orobanchaceae), a holoparasitic plant normally found exclusively on the roots of Fagus grandifolia
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Mycoheterotrophic plants as indicators of post-agricultural forest regeneration: abundance of Hypopitys monotropa and Monotropa uniflora in post-agricultural forests changes through time Botany (IF 1.1) Pub Date : 2023-10-10 Marion Andrews Holmes
Botany, Ahead of Print. Herbaceous layers in second-growth forests are shaped by past land use. Disturbances such as agriculture may impact populations of mycoheterotrophs, non-photosynthetic mycorrhizal plants that obtain carbon from fungal networks by altering mycorrhizal communities or removing trees they derive carbon from. I tested the hypotheses that two mycoheterotrophic forest herbs increase
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Petalophyllites speirsiae gen. et sp. nov. (Marchantiophyta: Fossombroniales), a fossil liverwort gametophyte from the Paleocene of Alberta, Canada Botany (IF 1.1) Pub Date : 2023-10-01 Georgia L. Hoffman, Barbara J. Crandall-Stotler
Botany, Volume 101, Issue 10, Page 462-470, October 2023. Although liverworts (Marchantiophyta) are postulated to be one of the oldest lineages of land plants, their documented fossil record is sparse. This study describes five new fossil liverwort gametophytes, one of which bears antheridia, from the Paleocene Paskapoo Formation of Alberta, Canada. The thalli are bilaterally symmetrical, with two
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Fruit anatomy and seedlings of the mistletoe Psittacanthus schiedeanus (Loranthaceae) Botany (IF 1.1) Pub Date : 2023-09-07 Juan Francisco Ornelas, Sonia Galicia, Antonio Acini Vásquez-Aguilar, Andrew P. Vovides
Botany, Ahead of Print. Fruits of Psittacanthus (Loranthaceae) mistletoes depend on frugivorous birds for seed dispersal; however, despite the importance of birds in their dispersal and distribution, the external fruit morphology and anatomy and seedling remain poorly studied. Here, we describe the fruit anatomy and seedling of host generalist Psittacanthus schiedeanus (Cham. & Schltdl.) G. Don (Loranthaceae)
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Trends in groundberry cover under climate change in the southern and central Yukon, 1997–2022 Botany (IF 1.1) Pub Date : 2023-09-07 Charles J. Krebs, Rudy Boonstra, Alice J. Kenney, Elizabeth Hofer, Thomas S. Jung, Mark O'Donoghue
Botany, Ahead of Print. Groundberries are an important component of the flora of the boreal forest and provide seasonally important food for many birds and mammals, as well as local people in northern Canada. Here, we ask whether there has been a change in the cover of groundberries in the Yukon boreal forest over the last two decades. We monitored five common species at undisturbed forest sites spaced
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Vertical botany: airborne remote sensing as an emerging tool for mistletoe research Botany (IF 1.1) Pub Date : 2023-08-29 Azim Missarov, Yevhen Sosnovsky, Karol Rydlo, Olga Brovkina, Wouter H. Maes, Kamil Král, Martin Krůček, Yuliya Krasylenko
Botany, Ahead of Print. Mistletoe detection and sampling remain challenging for arborists, dendrologists, forest ecologists, and other specialists because of the limited access to host tree canopy. In this review, smart solutions for mistletoe detection based on airborne platforms are discussed. Airborne remote sensing (ARS) has the developing potential to provide rapid, accurate, and cost-efficient
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Contribution to the taxonomic elucidation of the Geonoma maxima complex (Arecaceae) in Central Amazonia, Brazil Botany (IF 1.1) Pub Date : 2023-08-25 Maria Cristina de Souza, Maria Silvia de Mendonça, Michael John Gilbert Hopkins, Fabio Pinheiro, Antonio Salatino, Ana Christina Brasileiro-Vidal, Santelmo Vasconcelos, Evandro Jose Linhares Ferreira
Botany, Ahead of Print. Geonoma maxima (Poit.) Kunth is an example of a species complex, among many others restricted to Neotropical rain forests, which contribute to their high species diversity. Using environmental, morphological, karyological, and molecular data, we aim to test the taxonomic circumscription of 3 of the 11 G. maxima subspecies defined in the latest taxonomic treatment. We evaluated
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Flowering phenology, floral biology, breeding system, and pollination in the andromonoecious Commelina diffusa (Commelinaceae) Botany (IF 1.1) Pub Date : 2023-08-23 Veena V, Santhosh Nampy
Botany, Ahead of Print. Occurrence of male and bisexual flowers (andromonoecy) in a species is thought to be an adaptation to enhance reproductive success through increasing male function or by diverting resources otherwise used for the formation of pistils. Commelina diffusa Burm. f. is a pantropical, herbaceous, and andromonoecious species from the family Commelinaceae. A typical inflorescence comprises
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Monthly dynamics of phenolic release and allelopathic effect in hollow and hummock Sphagnum Botany (IF 1.1) Pub Date : 2023-08-18 Chao Liu, Yong-Da Chen, Azim Mallik, Vincent E.J. Jassey, Line Rochefort, Zhao-Jun Bu
Botany, Ahead of Print. Monthly variation in accumulation and release of phenolics in bryophytes, and their allelopathic effects are little known despite their ecological significance. We conducted a field transplant experiment to investigate Sphagnum growth and extracellular enzymes that modulate phenolic contents and release along water table level (WTL) gradient. Specifically, we assessed monthly
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Leaf morphology and anatomy in Myrcia sect. Aulomyrcia (Myrtaceae): species circumscription and characterization of clades Botany (IF 1.1) Pub Date : 2023-08-16 Mariana de Andrade Wagner, Eve J. Lucas, Patrícia Soffiatti, William Santos Cabral, Paulo Ricardo Portella, Pedro Fiaschi
Botany, Ahead of Print. Myrcia DC., a diverse neotropical genus of Myrtaceae, encompasses 793 species. However, species of Myrcia are similar and difficult to distinguish. In Myrcia sect. Aulomyrcia (O. Berg) Griseb., leaf features help distinguishing clades and species. Our aim is to provide leaf data for species of M. sect. Aulomyrcia’s clades F and G. We sampled 31 specimens of 13 species of Myrcia
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Returning mistletoe to an urban forest: a restoration success story Botany (IF 1.1) Pub Date : 2023-08-11 David M. Watson, Melinda Cook, Rodney Van der Ree, Lee Harrison
Botany, Ahead of Print. Mistletoes have a fraught public relations history. Vilified as toxic tree-killing weeds, they have long been targeted for removal by arborists and forest managers concerned with tree health. Research on mistletoe ecology has revealed their positive influence on diversity and community structure via complex networks of interactions. In areas where mistletoe has traditionally
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Transgene silencing in the moss, Physcomitrella (Physcomitrium patens) Botany (IF 1.1) Pub Date : 2023-08-02 Stacy D. Singer, Neil W. Ashton
Botany, Ahead of Print. Gene targeting is a powerful tool for functional genetic analysis. It has proved especially effective in the model plant, Physcomitrella (Physcomitrium patens (Hedw.) Mitt.), in which integration of exogenous DNA into the genome occurs with very high efficiency at targeted positions by homologous recombination. Here, we present a preliminary characterisation of a poorly documented
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Picea × darwyniana Björk & Goward: an invalid taxonomic name Botany (IF 1.1) Pub Date : 2023-07-27 W.L Strong
Botany, Ahead of Print. Picea × darwyniana Björk & Goward was recently proposed to replace Picea albertiana S. Brown as the representative taxon for the hybrid offspring of Picea glauca (Moench) Voss and Picea engelmannii Parry ex Engelm., but should be considered invalid for three reasons. First, the proponents failed to document in any way that the P. albertiana isotypes were Picea glauca × mariana
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Complex taxonomy in Opuntioideae: is floral morphometry essential to identify Opuntia species? Botany (IF 1.1) Pub Date : 2023-07-19 Aldanelly Galicia-Pérez, Jordan Golubov, Gerardo Manzanarez-Villasana, Linda Mariana Martínez-Ramos, Salvador Arias, Judith Márquez-Guzmán, María C. Mandujano
Botany, Ahead of Print. Correct species identification is critical for studies on biodiversity, ecology, and conservation. Determining Opuntia s.s. species is difficult because they have similar traits and are phenotypically plastic. Taxonomic keys are based on vegetative traits rather than reproductive ones such as flowers, because they are assumed to be too similar. We analyzed morphometric characteristics
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Agrobacterium-mediated transformation of THC-containing Cannabis sativa L. yields a high frequency of transgenic calli expressing bialaphos resistance and non-expressor of PR1 (NPR1) genes Botany (IF 1.1) Pub Date : 2023-07-20 Janesse E. Holmes, Zamir K. Punja
Botany, Ahead of Print. We established transformation technologies using Agrobacterium tumefaciens (Smith & Townsend) Conn to insert foreign genes into high THC-containing cannabis (Cannabis sativa L.). The Arabidopsis non-expressor of pathogenesis-related protein 1 (AtNPR1) gene was selected as a potentially useful agronomic gene, which was linked to the bar gene from Streptomyces that encodes herbicide
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Morphophysiological indicators applied for the selection of different genotypes of Hevea spp. during germination and post-germination Botany (IF 1.1) Pub Date : 2023-07-12 Josiane C. de Carvalho, Katharine D. Gonçalves, Elmer V. Gonçalves, Pedro Paulo dos Santos, Manoel de Jesus de S. Miranda, Adamir da R. Nina Junior, Adriano Nunes-Nesi, Wagner L. Araújo, José Francisco de C. Gonçalves
Botany, Ahead of Print. We investigate and characterize the morphophysiological changes related to germination and the initial growth and development of seedlings of wild and cultivated genotypes of the genus Hevea spp. in finding to add value to new clones. Seeds from six genotypes (H. brasiliensis (Willd. Ex A. Juss) Müll. Arg, H. guianensis Aubl., H. spruceana (Benth.) Müll. Arg., RRIM 600, Fx 3844
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The responses of Cannabis sativa to environmental stress: a balancing act Botany (IF 1.1) Pub Date : 2023-07-11 Josephine Payment, Marina Cvetkovska
Botany, Volume 101, Issue 8, Page 318-332, August 2023. Cannabis sativa L. is one of the oldest cultivated crops, used for its fiber and medicinal properties. The cannabis plant synthesizes a myriad of secondary metabolites, but the most valuable products from a medical and commercial standpoint are cannabinoids. Despite significant advances in elucidating the biochemistry and genetics that govern
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Variation in establishment success for American mistletoe [Phoradendron leucarpum (Raf.) Reveal & M.C. Johnst. (Viscaceae)] appears most likely to predict its distribution in Virginia and North Carolina, United States Botany (IF 1.1) Pub Date : 2023-07-07 Nicholas P. Flanders, Christopher P. Randle, Eric L. Walters, Lytton J. Musselman
Botany, Ahead of Print. Dispersal limitation and variation in habitat suitability may determine an association of American mistletoe [Phoradendron leucarpum (Raf.) Reveal & M.C. Johnst. (Viscaceae)] with forested wetlands in Virginia and North Carolina, United States. Here, we first tested the alternative hypothesis that variation in host availability drives this habitat relationship. We used a generalized
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Correction: fungi associated with roots of cucumber grown in different greenhouse root substrates Botany (IF 1.1) Pub Date : 2023-07-04 J.G. Menzies, D.L. Ehret, C. Koch, J.W. Hall, K.A. Seifert, J. Bissett, D.J.S. Barr
Botany, Ahead of Print.
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Suppression of tomato bacterial speck disease (Pseudomonas syringae pv. tomato (Okabe) Young, Dye, & Wilkie) via induced systemic resistance by Pseudomonas and Bacillus strains Botany (IF 1.1) Pub Date : 2023-06-28 Hatice Nilufer Yildiz, Hacer Handan Altinok, Murat Dikilitas, Hale Günacti, Tahsin Ay
Botany, Ahead of Print. Bacterial speck Pseudomonas syringae pv. tomato (Pst) (Okabe) Young, Dye, & Wilkie is a widespread disease in tomato plants. Four plant growth-promoting rhizobacterial (PGPR) strains 5(3), 68(2), 36(1), and 47(3) played a significant role (50% and higher) in reducing spot disease severity. Selected strains were identified as Pseudomonas koreensis 5(3), Bacillus mycoides 68(2)
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Phylogeography of alpine plant Parnassia wightiana (Celastraceae) Botany (IF 1.1) Pub Date : 2023-06-14 Xiao-Song Dai, Shuang Tian, Wei Wu, Bo Yang, Yi-Fan Ma, Gang Ge, Ding Wu
Botany, Ahead of Print. Parnassia wightiana Wall. ex Wight & Arn., a perennial herb, is an alpine plant distributed across three biodiversity hotspots in China. This species offers an excellent study system to analyze the distribution pattern and genetic structure of high mountainous plant populations. Three chloroplast DNA (cpDNA) regions (rpl32-t rnL, trnL-F, and trnS-G) from 442 individuals of 39
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Preliminary assessment of the ectomycorrhizal fungi of Quercus garryana on Vancouver Island, British Columbia, Canada Botany (IF 1.1) Pub Date : 2023-05-31 Shannon M. Berch, Thomas E. Witte, Joey B. Tanney
Botany, Ahead of Print. Garry oak (Quercus garryana Douglas ex Hook.) is the only oak native to British Columbia (BC), where it occupies the northernmost extent of its range. The ecosystem it occupies in BC has been greatly reduced in size and fragmented by European settlement. Garry oak forms ectomycorrhizas that are essential to its existence and will likely play an important role in the response
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A tale of two mistletoes: phenology and fauna associated with two sympatric species Botany (IF 1.1) Pub Date : 2023-05-29 Javiera Pincheira, Javiera Villarroel, José I. Orellana, Francisco E. Fontúrbel
Botany, Ahead of Print. Mistletoes are parasitic plants that largely rely on animals for pollination and seed dispersal but establish complex interactions with their host plants. Mistletoes are considered keystone species in forest ecosystems as they facilitate several interactions. We studied the fauna associated with two sympatric mistletoe species (Tristerix corymbosus (L.) Kuijt and Desmaria mutabilis
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Filling in the gaps: a road map to establish a model system to study developmental programmed cell death Botany (IF 1.1) Pub Date : 2023-05-25 Nathan M. Rowarth, Sophie B. Tattrie, Adrian N. Dauphinee, Christian R. Lacroix, Arunika H.L.A.N. Gunawardena
Botany, Ahead of Print. Only a handful of model systems for studying programmed cell death (PCD) exist. The model Arabidopsis thaliana has generated a plethora of knowledge, but it is essential to introduce new models to broaden our understanding of the commonalities of PCD. This review focuses on Aponogeton madagascariensis (the lace plant) as a choice model to study PCD in vivo. PCD plays a key role
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Understanding bud rot development, caused by Botrytis cinerea, on cannabis (Cannabis sativa L.) plants grown under greenhouse conditions Botany (IF 1.1) Pub Date : 2023-05-24 Mohannad Mahmoud, Ines BenRejeb, Zamir K. Punja, Liam Buirs, Suha Jabaji
Botany, Ahead of Print. Botrytis cinerea is a widespread necrotrophic plant pathogen that causes diseases on >1000 plant species, including vegetables and ornamental greenhouse crops. On cannabis (Cannabis sativ a L.), the pathogen is responsible for causing “bud rot”, a major disease affecting the inflorescences (compound flowers), as well as seedling damping-off and leaf blight under certain conditions
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Consistency of phenolic profiles with taxonomic distribution and adaptation of birch species (Betula L.) to environmental conditions Botany (IF 1.1) Pub Date : 2023-05-25 Artur F. Likhanov, Roman D. Vasylyshyn, Yurii M. Marchuk, Oleksandr M. Kurdyuk, Hanna Yu. Honchar, Oleksandr V. Borysov, Svitlana Yu. Bilous, Borys Ye. Yakubenko, Yahya Al Naggar
Botany, Ahead of Print. The phenolic compounds in the leaves of 12 species of birch trees of the subgenera Neurobetula, Betulenta, and Betula were biochemically profiled using HPTLC. The duration of the vegetation period was found to be significantly related to the content of total phenols (r = 0.74) and flavonoids in leaves (r = 0.65). The correlations for Neurobetula plants were 0.86 and 0.91, respectively
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Untargeted and targeted metabolomics to understand plant growth regulation and evolution in Wollemi pine (Wollemia nobilis) Botany (IF 1.1) Pub Date : 2023-05-16 Ryland T. Giebelhaus, Laura Biggs, Susan J. Murch, Lauren A.E. Erland
Botany, Ahead of Print. Wollemi pine (Wollemia nobilis (Jones, Hill, Allen)) is a living fossil, known only through fossil records until its 1994 discovery in Australia. Wollemi Pine is closely related to Norfolk Island pine (Araucaria heterophylla (Salisb.) Franco), making it an interesting system to study metabolic evolution. We employed untargeted liquid chromatography mass spectrometry-based (LC-MS)
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The post-fire shift of temperate white pine-birch forest to boreal balsam fir forest in eastern Canada: climate-fire implications Botany (IF 1.1) Pub Date : 2023-04-20 Serge Payette, Mathieu Frégeau, Pierre-Luc Couillard, Jason Laflamme
Botany, Ahead of Print. Extensive 14C dating and botanical identification of charcoal fragments located in the organic surface soil layer and buried in the mineral podzolic solum were used to reconstruct the successional pathways of a balsam fir forest site. The studied forest site developed in a context of continuous fire disturbance over the last 9000 years with at least 26 fires occurring at a mean
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Reproductive biology of Caryocar brasiliense (Caryocaraceae) in preserved and degraded Cerrado areas in Brazil Botany (IF 1.1) Pub Date : 2023-04-19 Stephanie Q. Roque, Luiz A. D. Falcão, André R. Rech, Jhonathan O. Silva, Priscila S. Oliveira, Kleiperry F. Ferreira, Mário M. do Espírito-Santo
Botany, Ahead of Print. This study aimed to characterize the reproductive system and determine the importance of pollinators for fruit production of Caryocar brasiliense, an economically important tree, in preserved and degraded Cerrado areas in southeastern Brazil. For this purpose, we performed pollinator exclusion experiments to determine the frequency of self- and cross-pollination, and to determine
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Effects of industrial disturbances on the flavonoid concentration of Rhododendron groenlandicum Botany (IF 1.1) Pub Date : 2023-04-18 Maxime Thomas, Mebarek Lamara, Hugo Asselin, Nicole J. Fenton
Botany, Ahead of Print. The boreal forest is subject to various anthropogenic disturbances, including logging, mining, and hydroelectricity production and transport. These disturbances affect Indigenous communities and the culturally salient species they depend on for the practice of traditional and subsistence activities. Rhododendron groenlandicum (Oeder) Kron & Judd is one such species whose leaves
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Genomic description of critical cannabinoid biosynthesis genes Botany (IF 1.1) Pub Date : 2023-04-14 Peter A. Innes, Daniela Vergara
Botany, Ahead of Print. Cannabinoid production is a key attribute of the plant Can nabis sativa and characterizing the genes involved is an essential first step to develop tools for their optimization. We used bioinformatic approaches to annotate and explore variation in the genes coding for enzymes comprising the cannabinoid pathway: olivetol synthase (OLS), olivetolic acid cyclase (OAC), cannabigerolic
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Butterfly blues: population genetic assessment of wild lupine (Lupinus perennis L.) in endangered Karner blue butterfly habitat around central-west Michigan Botany (IF 1.1) Pub Date : 2023-04-14 Charlyn G. Partridge, Priscilla Nyamai, Alexis Hoskins, Syndell Parks
Botany, Ahead of Print. Habitat degradation can have significant effects on native species inhabiting natural ecosystems. Within oak barrens and oak–pine barrens ecosystems, there is a complex interspecies interaction between the federally endangered Karner blue butterfly (Lycaeides melissa samuelis) and its obligate host plant, wild lupine (Lupinus perennis L.). Recruitment of wild lupine is critical
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The woody plant Haloxylon ammodendron (C.A. Mey.) provides new insights into the self-thinning relationship and size inequality with wind erosion stress Botany (IF 1.1) Pub Date : 2023-04-14 Yanxia Li, Enbo Liu, Kangkang Mi, Yuyang Song
Botany, Ahead of Print. The self-thinning process and size inequality of plants change with age and wind erosion stress conditions. In this study, we used Haloxylon ammodendron (C.A. Mey.) shrubs in their juvenile stage (1–6 years) as the study subjects. Their density, height, and survival were investigated. The relationship between the mean and variation in the densities was calculated using Taylor’s
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Avian gut passage reduces the germination light response of pokeweed (Phytolaca americana) Botany (IF 1.1) Pub Date : 2023-03-30 D. Matlaga, J. Baringer, M. Ritchey
Botany, Ahead of Print. It has been shown that passage through a bird's gut has the potential to alter seed germinability (overall percent germination) and the timing of germination. However, little is known about the potential of avian gut passage to alter the germination response of seeds to abiotic gradients, such as light availability. Specifically, it is unclear whether gut passage makes seeds
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Potential role of the seed bank in spreading invasive plants in a tundra-edge environment Botany (IF 1.1) Pub Date : 2023-03-30 Omer A. Syed, Vicki M. Zhang, Peter M. Kotanen
Botany, Ahead of Print. Although relatively infrequent, invasions by non-native plants at high latitudes are increasingly recognized as an emerging problem. Churchill, MB, Canada is unusual as over 100 non-native species have been found in human-disturbed areas, making it an outlier amongst subarctic habitats. Although these non-native species have persisted almost exclusively within town, some occur
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Biodiversity of Tricholoma matsutake (syn. T. nauseosum) and its related species based on repetitive DNA and genomics Botany (IF 1.1) Pub Date : 2023-03-15 Hitoshi Murata, Akiyoshi Yamada, Hiroyuki Ichida, Noritaka Nakamura, Hitoshi Neda
Botany, Ahead of Print. Tricholoma matsutake and its related species are ectomycorrhizal Agaricomycetes that produce prized mushrooms collectively called “matsutake”. These mushrooms are mainly distributed in the Northern Hemisphere. In this review, we describe both the pioneering work and recent advances in our understanding of the distribution and evolution of matsutake, with a special focus on genomic
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Quantification of camelina germination niche to combined salinity and temperature stresses using a halothermal time model Botany (IF 1.1) Pub Date : 2023-02-27 Fatemeh Hosseini Sanehkoori, Esmaeil Bakhshandeh, Hemmatollah Pirdashti, Raoudha Abdellaoui, Fayçal Boughalleb, Mobina Gholamhosseini
Botany, Volume 101, Issue 3, Page 88-97, March 2023. The present work was carried out to quantify camelina germination niche under salinity and temperature (T) stress using halotime and halothermal time models. Seed germination (SG) time courses were recorded at six constant temperatures (5 °C, 10 °C, 15 °C, 20 °C, 25 °C, and 30 °C) and at each of the following levels of NaCl concentrations (0, 50
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Soil drainage-class influences on the distribution of witness trees (1664–1700) in Wicomico County, Maryland, USA Botany (IF 1.1) Pub Date : 2023-02-28 Michael E. Folkoff, Daniel W. Harris, Christopher H. Briand
Botany, Ahead of Print. Given the long-term human habitation and prolific land use change trajectories in the eastern United States, few remnants of the pre-European settlement Mid-Atlantic forest remain on the Atlantic Coastal Plain. This study utilized metes and bounds witness tree locations and descriptions produced during colonial land subdivision to understand the relationships between tree types
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Seed germination requirements of Amaranthus retroflexus L. populations exposed to environmental factors Botany (IF 1.1) Pub Date : 2023-02-22 Mina Safavi, Mohammad Rezvani, Faezeh Zaefarian, Sajedeh Golmohammadzadeh, Brian M. Sindel
Botany, Ahead of Print. Seed germination studies are often used to predict the potential of plants to extend their global distribution. In this research, the effect of gibberellic acid (GA3) concentrations, pre-chilling, temperature, water and salt stresses, pH, high-temperature pretreatment, planting depth, and flooding on seed germination and seedling emergence of three Amaranthus retroflexus L.
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Organically grown cannabis (Cannabis sativa L.) plants contain a diverse range of culturable epiphytic and endophytic fungi in inflorescences and stem tissues Botany (IF 1.1) Pub Date : 2023-02-18 Zamir K. Punja, Cameron Scott
Botany, Ahead of Print. We investigated the diversity of fungal species present on inflorescences as epiphytes and in stem tissues as endophytes in flowering plants of cannabis grown organically in British Columbia during 2019–2021. Fresh and dried inflorescence samples were obtained at various times during production while stems were obtained at harvest. Fungal species in the air were assessed by
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Correction: Diversity among rare and common congeneric plant species from the Garry oak and Okanagan shrub-steppe ecosystems in British Columbia: implications for conservation Botany (IF 1.1) Pub Date : 2023-02-17 Evan W. Hersh, Erica J. Wheeler, Brenda Costanzo, Alisa P. Ramakrishnan, Allyson E. Miscampbell, Carol Ritland, Jeannette Whitton, Jamieson C. Gorrell, William Harrower
Botany, Ahead of Print.
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Pollination ecology of the early-spring-blooming dioecious shrub Eurya japonica (Pentaphylacaceae) Botany (IF 1.1) Pub Date : 2023-02-15 Midzuho Tatsuno, Masahiro Sueyoshi, Naoya Osawa
Botany, Ahead of Print. While the majority of angiosperm plants have hermaphrodite flowers, where a single pollinator visit can achieve both pollen removal and deposition, 5%–6% of angiosperms, including zoophilous species, are dioecious, necessitating pollen transport from male plants to females. As such, dioecy is considered less adaptive under low-temperature conditions that tend to restrict or
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Delayed self-fertilization and chemical analysis of floral nectar of a perennial relative of the tomato and potato from Mexico Botany (IF 1.1) Pub Date : 2023-02-07 Thomas Mione, Paul R. Wilson, Julia E. Kudewicz, Sourav Chakraborty
Botany, Ahead of Print. We studied the floral reproductive biology and nectar chemistry of Jaltomata grandiflora (Solanaceae), an apparently rare perennial of Michoacán, Mexico. During day 1, flowers are pistillate (stigma receptive, anthers not yet presenting pollen); flowers close for the night. Early in the morning of day 2, the corolla re-opens, stamens elongate to five times their earlier length
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Pollination systems and nectar rewards in four Andean species of Salvia (Lamiaceae) Botany (IF 1.1) Pub Date : 2023-02-06 Alexandria Saravia-Nava, Santiago Benitez-Vieyra, Omar N. Urquizo, Hermann M. Niemeyer, Carlos F. Pinto
Botany, Ahead of Print. Adaptation to the most effective pollinator is often conceived as the primary explanation of widespread convergence in flower phenotypes. However, specialization does not exclude the presence of other floral visitors, which may contribute to plant reproduction. Here we combined observations about pollinators’ visitation rates and effectiveness with nectar secretion dynamics
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Susceptibility of endangered Cornus florida (eastern flowering dogwood) to the introduced fungal pathogen Discula destructiva (dogwood anthracnose) in the Canadian Carolinian forest: insights from environmental, ecological, and population genetics assessments Botany (IF 1.1) Pub Date : 2023-02-06 Emily Mitchell, Sage Fleming, Marcel Dorken, Joanna Freeland
Botany, Ahead of Print. Forest fragmentation and introduced pathogens are negatively impacting trees and forests globally, including the Carolinian forest of southern Ontario, Canada. Multiple species at risk live in this threatened but biodiverse forest, including the endangered Cornus florida (eastern flowering dogwood), which is now limited to fragmented woodlots, and has been decimated by the introduced
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Transcriptome-wide characterization of alternative splicing in five drug-type cultivars of Cannabis sativa Botany (IF 1.1) Pub Date : 2023-01-11 Tonya F. Severson, Keith L. Adams
Botany, Ahead of Print. Cannabis sativa L. is widely used for fiber, medicinal, and other purposes, and many cultivars exist, yielding varying proportions of cannabinoids and terpenes. There is considerable interest in characterizing genomes and transcriptomes of C. sativa. Alternative splicing (AS) is a fundamental aspect of gene expression that results in multiple types of mRNAs produced by differential
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Survival, and anatomical and ecophysiological changes in isolated individuals of Tillandsia recurvata L. (Bromeliaceae) grown under different shading conditions Botany (IF 1.1) Pub Date : 2023-01-11 Bianca Aparecida Borges e Silva, Maria Paula Bandoni Chaves, Heloisa Fernanda Silvério, Flávio Nunes Ramos, Jean Paulo Vitor de Oliveira, Evaristo Mauro de Castro, Fabricio José Pereira
Botany, Ahead of Print. Tillandsia recurvata L. may show morphophysiological plasticity in response to radiation availability, since this species is found in different environments. This work aimed to evaluate the anatomical and physiological modifications of T. recurvata isolated individuals under different shading levels and the consequences of these changes on the growth of this species. The individuals