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Seed dormancy break and germination by a rare relict of the Würmian glaciation in the Iberian Peninsula: Euonymus latifolius (Celastraceae) Seed Sci. Res. (IF 1.585) Pub Date : 2023-06-01 A. Santiago, J. M. Herranz, P. Ferrandis
Southern European peninsulas have repeatedly played notable roles as refuges in the natural history of flora during periods of glaciation. Euonymus latifolius (Celastraceae) is a relict species from the last Würmian glaciation in the Iberian Peninsula. It still lives with isolated populations in favourable, cool mountainous microhabitats, being an extremely rare, critically endangered species. These
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Transcriptome sequencing analysis revealing the potential mechanism of seed germination in Pulsatilla chinensis (Bunge) Regel Seed Sci. Res. (IF 1.585) Pub Date : 2023-05-11 Yanjing Dong, Shouwen Zhang, Qian Qin, Yating Cai, Danyang Wu
Pulsatilla chinensis (Bunge) Regel has been widely used in the pharmaceutical industry. With the deepening of clinical application, the research on its plant resources has attracted much attention. However, the underlying molecular mechanisms of distinct germination during Pulsatilla seed development are still mostly unknown. Therefore, in this study, four germination stages of P. chinensis seeds,
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Seed dormancy in Asteraceae: a global vegetation zone and taxonomic/phylogenetic assessment Seed Sci. Res. (IF 1.585) Pub Date : 2023-04-17 Carol C. Baskin, Jerry M. Baskin
The Asteraceae with up to 30,000 species occurs on all continents except Antarctica and in all major vegetation zones on earth. Our primary aim was to consider cypselae dormancy-break and germination of Asteraceae in relation to ecology, vegetation zones and evolution. Cypselae are desiccation-tolerant and in various tribes, genera, species and life forms of Asteraceae are either non-dormant (ND) or
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Seed germination of Cistanche armena (Orobanchaceae), a rare endangered holoparasitic species endemic to Armenia Seed Sci. Res. (IF 1.585) Pub Date : 2023-03-23 Yuliya Krasylenko, Adelá Hýlová, Yevhen Sosnovsky, Markéta Ulbrichová, Lukáš Spíchal, Renata Piwowarczyk
The obligate root parasite Cistanche armena is a recently rediscovered, extremely rare endangered species endemic to Armenia, specifically parasitizing camelthorn (Alhagi maurorum, Fabaceae) and saltwort (Salsola dendroides, Chenopodiaceae). Its populations are reputedly declining due to habitat destruction and biotic impacts. Since the only known means of its reproduction is via the seeds, understanding
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Rice seed longevity in the context of seed moisture contents and hypoxic conditions in the storage environment Seed Sci. Res. (IF 1.585) Pub Date : 2023-02-16 Ayesha Tahir, Irfan Afzal, Ehsan Khalid, Maryam Razzaq, Mian Abdur Rehman Arif
Cumulative oxidation of cellular macromolecules during storage reduces seed longevity. This study was undertaken to unravel the physiological and biochemical changes in rice seeds that contribute to deterioration during storage. Rice seeds maintained at three different seed moisture contents (SMC; 10, 12 and 14%) were stored in airtight glass jars. Half of the jars were flushed with nitrogen gas to
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Non-deep simple and deep simple morphophysiological dormancy in seeds of three species of Ilex from subtropical and tropical regions of Taiwan Seed Sci. Res. (IF 1.585) Pub Date : 2023-02-09 Chiung-Pin Liu, Shun-Ying Chen, Carol C. Baskin, Ching-Te Chien
Dormancy-breaking requirements and level of morphophysiological dormancy (MPD) were determined for seeds of Ilex formosana and I. uraiensis from the subtropical region, and seeds of I. rotunda from both the subtropical and tropical regions of Taiwan. We hypothesized that some Ilex species would have deep simple MPD broken by warm stratification. Germination of seeds and embryo growth was monitored
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Spectral imaging and chemometrics applied at phenotyping in seed science studies: a systematic review Seed Sci. Res. (IF 1.585) Pub Date : 2023-01-26 Thomas B. Michelon, Elisa Serra Negra Vieira, Maristela Panobianco
The evaluation of the genetic quality of a seed lot is crucial for the quality control process in its production and commercialization, as well as in the identification of superior genotypes and the verification of the correct crossing in plant breeding programmes. Current techniques, based on the identification of seed morphological characteristics, require skilled analysts, while biochemical methods
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Environmental predictors of seed germination in two Halocnemum species from Mediterranean (Balearic, Tyrrenic and Adriatic) and Red Sea coastal salt marshes Seed Sci. Res. (IF 1.585) Pub Date : 2023-01-09 Pilar Soriano, Elena Estrelles, M. Isabel Martínez-Nieto, Antonio Doménech-Carbó, Marco Galiè, Edoardo Biondi
Reproductive strategies for specific populations are closely related to environmental factors. Consequently, they are fundamental for conservation plans and the management of threatened habitats like salt marshes. From this viewpoint, germination strategy under different temperatures and salt conditions, voltammetric parameters and molecular analysis were performed and compared in six Halocnemum populations
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Seed ecology of post-fire flowering species from the Cerrado Seed Sci. Res. (IF 1.585) Pub Date : 2022-12-16 Hudson G.V. Fontenele, Heloisa S. Miranda
Post-fire flowering (PFF) species resprout, flower and disperse seeds within weeks after fire. This may be an important strategy to recruit new individuals and colonize the gaps opened by fire. The seeds released in the post-fire environment may interact with byproducts derived from plant burning, and the resulting ash may have compounds that can promote the germination of various seeds, particularly
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(Epi)genetic control of secondary seed dormancy depth and germination in Capsella bursa-pastoris Seed Sci. Res. (IF 1.585) Pub Date : 2022-11-29 Sara Gomez-Cabellos, Peter E. Toorop, Eduardo Fernández-Pascual, Pietro P. M. Iannetta, Hugh W. Pritchard, Anne M. Visscher
Despite the importance of secondary dormancy for plant life cycle timing and survival, there is insufficient knowledge about the (epigenetic) regulation of this trait at the molecular level. Our aim was to determine the role of (epi)genetic processes in the regulation of secondary seed dormancy using natural genotypes of the widely distributed Capsella bursa-pastoris. Seeds of nine ecotypes were exposed
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Seed dormancy concepts in orchids: Dendrobium cruentum as a model species Seed Sci. Res. (IF 1.585) Pub Date : 2022-11-21 Sasikarn Prasongsom, Kanchit Thammasiri, Hugh W. Pritchard
Generally, orchids produce dust-like seeds in which endosperm reduction and embryo undifferentiation represent a derived state shared with species in about 11 other plant families. Orchid seeds are proposed to have a special kind of morphological or morphophysiological dormancy. We test this proposition, overcoming several design limitations of earlier studies, specifically that the in vitro germination
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Seed (true seed plus endocarp) dormancy in Anacardiaceae in relation to infrafamilial taxonomy and endocarp anatomy Seed Sci. Res. (IF 1.585) Pub Date : 2022-11-09 Jerry M. Baskin, Carol C. Baskin
Information in the literature and unpublished results of the authors on Dobinea were used to determine the kind [class(es)] of seed (true seed + endocarp) dormancy and of non-dormancy of genera in all five tribes of Anacardiaceae, and the results were examined in relation to the taxonomic position and endocarp anatomy within the family. Reports of both seed germination and endocarp anatomy were found
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Germination responses inZephyranthes tubispathaseeds exposed to different thermal conditions and the role of antioxidant metabolism and several phytohormones in their control Seed Sci. Res. (IF 1.585) Pub Date : 2022-11-02 María Cecilia Acosta, Vilma Teresa Manfreda, María Luciana Alcaraz, Sergio Alemano, Humberto Fabio Causin
Zephyranthes tubispathais an ornamental species distributed along several countries of South America. Although it can be multiplied through bulbs or scales, seed germination is a simpler and more cost-effective process. Temperature plays a major role in the control of germination; however, its effect has been scarcely investigated in this species. In the present work, we characterized the germination
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Characterization and diversity of seed endophytic bacteria of the endemic holoparasitic plant Cistanche armena (Orobanchaceae) from a semi-desert area in Armenia Seed Sci. Res. (IF 1.585) Pub Date : 2022-10-18 Kristine Petrosyan, Sofie Thijs, Renata Piwowarczyk, Karolina Ruraż, Jaco Vangronsveld, Wiesław Kaca
We explored the seed-associated bacterial endophytic microbiome in seeds of the endemic holoparasitic species Cistanche armena from a saline and arid habitat in Armenia. A combination of culture-dependent and molecular techniques was employed for identifying the seed endomicrobiome (culturable and unculturable). From surface-sterilized seeds, 10 phyla, comprising 256 endophytic bacterial genera, were
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Beetroot and spinach seed microbiomes can suppress Pythium ultimum infection: results from a large-scale screening Seed Sci. Res. (IF 1.585) Pub Date : 2022-09-07 Makrina Diakaki, Liesbeth van der Heijden, Jorge Giovanny Lopez-Reyes, Anita van Nieuwenhoven, Martje Notten, Mirjam Storcken, Patrick Butterbach, Jürgen Köhl, Wietse de Boer, Joeke Postma
Seed health is an indispensable prerequisite of food security. While the toolkit of plant protection products is currently limited, evidence suggests that the seed microbiome could protect seeds from pathogens. Thus, given their possible disease suppressive potential, we tested 11 different pathosystems to achieve the following proof-of-concept: seed microbiomes can be beneficial for seed health through
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Stimulatory and inhibitory effects of light on Cereus repandus (Cactaceae) seed germination are strongly dependent on spectral quality Seed Sci. Res. (IF 1.585) Pub Date : 2022-09-06 X-Y. Yang, Hugh W. Pritchard
In small seeds, light often promotes germination and longer-term exposure to darkness reduces light sensitivity. In cacti inhabiting harsh environments, a rapid response to light exposure is potentially advantageous for seedling establishment. We exposed dark-imbibed seeds of the cactus Cereus repandus to doses of red (RED) light and far-red (FR) light. The seeds exhibited positive photoblastism to
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Seed germination, initial growth and leaf anatomy of seedlings of four tree species grown in mine tailings in Brazil Seed Sci. Res. (IF 1.585) Pub Date : 2022-08-10 Ana Lívia Martins Scarpa, Filipe Almendagna Rodrigues, Yasmini da Cunha Cruz, Vinícius Politi Duarte, Evaristo Mauro de Castro, Moacir Pasqual, Fabricio José Pereira
The objective of this study was to test the tolerance of two species of Schinus and two species of Handroanthus cultivated in iron mining tailings from the rupture of the dam in Mariana, Brazil. Samples of mining tailings were collected 1 km away from the dam location and then dried, stored in plastic bags and further analysed for elemental composition. The seeds, later seedlings, were cultivated in
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Seed dormancy and germination behaviour of tropical rainforest tree species from Sri Lanka Seed Sci. Res. (IF 1.585) Pub Date : 2022-08-08 B.R. Chandima P. Samarasinghe, K.M.G. Gehan Jayasuriya, A.M. Thilanka A. Gunaratne, Mahesh C. Senanayaka, Kingsley W. Dixon
Plant community-level studies on seed dormancy traits are important to understand and determine the significance of seed dormancy in different ecosystems. Hence, we studied seed dormancy and other related seed biological traits of 42 selected tropical lowland rainforest tree species from Sri Lanka, aiming to address seed dormancy class(es) for a biodiverse tropical lowland wet zone forest community
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From germination to seedling development: the effects of smoke on a native and an invasive grass species of the Cerrado Seed Sci. Res. (IF 1.585) Pub Date : 2022-08-05 Luís G.F. Sanchez, Ademar B. Dantas-Junior, Ana Clara C.Q. Porto, Carolina Musso, Margarete N. Sato, Heloisa S. Miranda
The Brazilian Cerrado, a Neotropical savanna, is a fire-prone ecosystem where the ground layer biomass consists mainly of graminoids. However, as for other savannas, the effects of fire cues (such as smoke) on Cerrado grasses do not present a clear pattern, either for germination or seedling development. Smoke can stimulate different stages of the plant life cycle, which can alter the community and
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Effects of light and temperature on seed germination of eight Cistus species Seed Sci. Res. (IF 1.585) Pub Date : 2022-08-02 Belén Luna, Paula Piñas-Bonilla, Gonzalo Zavala, Beatriz Pérez
Cistus species have seeds with hard coats which impose physical seed dormancy that can be released after seed scarification. In fire-prone habitats, the break of physical seed dormancy is usually related to the heat produced during fires. It is commonly accepted that most hard-seeded species, including those of the genus Cistus, are able to germinate under a wide range of temperatures in light as well
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Seed-coat thickness explains contrasting germination responses to smoke and heat in Leucadendron Seed Sci. Res. (IF 1.585) Pub Date : 2022-07-05 Byron B. Lamont, Pablo Gómez Barreiro, Rosemary J. Newton
Fire stimulates the germination of most seeds in fire-prone vegetation. Fruits of Leucadendron (Proteaceae) are winged achenes or nutlets that correlate with their requirements for smoke and/or heat in promoting germination. We describe five possible smoke–heat dormancy-release/germination syndromes among plants, of which Leucadendron displays three (no response, smoke only, smoke and heat). As seed-coat
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Cold stratification in winter is more than enough for seed dormancy-break of summer annuals in eastern North America: implications for climate change Seed Sci. Res. (IF 1.585) Pub Date : 2022-06-29 Carol C. Baskin, Jerry M. Baskin
Germination of seeds of some summer annuals in Kentucky (eastern USA) in late-winter lead to the hypothesis that under present climate conditions the whole length of the winter cold stratification (CS) period is not required for dormancy-break of seeds of summer annuals with physiological dormancy (PD). We evaluated our data from germination phenology studies of 45 species (69 datasets) and buried-seed
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Antioxidant depletion during seed storage under ambient conditions Seed Sci. Res. (IF 1.585) Pub Date : 2022-06-28 Moritz Stegner, Johanna Wagner, Thomas Roach
Cumulative oxidative damage from the unavoidable formation of reactive oxygen species (ROS) contributes to seed ageing. Low-molecular-weight (LMW) antioxidants, such as water-soluble glutathione (GSH) and lipid-soluble tocochromanols, can prevent ROS from causing damage, especially when antioxidant enzymes are inactive due to desiccation. However, loss of tocochromanols does not always accompany seed
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Oxygen, a key signalling factor in the control of seed germination and dormancy Seed Sci. Res. (IF 1.585) Pub Date : 2022-06-28 Françoise Corbineau
Oxygen is a major factor of seed germination since it allows resumption of respiration and subsequent metabolism reactivation during seed imbibition, thus leading to the production of reducing power and ATP. Most studies carried out in the 60s to 85s indicate that oxygen requirement depends on the species and is modulated by environmental factors. They have also demonstrated that the covering structures
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Seed mass, dormancy and germinability variation among maternal plants of four Arabian halophytes Seed Sci. Res. (IF 1.585) Pub Date : 2022-06-13 Arvind Bhatt, David J Gallacher, Alfredo Jarma-Orozco, Marcelo F. Pompelli
Coastal desert vegetation of the Arabian Peninsula is almost entirely dominated by halophytes. Natural populations provide a genetic resource for ecological remediation and may also have direct economic value. High intrapopulation variation of seed traits is presumed to increase population persistence in the unpredictable climatic conditions of this hyper-arid desert. We investigated whether intrapopulation
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Oxidant system and ABA drive germination in seeds of palm species with differences in desiccation tolerance Seed Sci. Res. (IF 1.585) Pub Date : 2022-06-01 Talita Raissa Silva Santos, Elisa Monteze Bicalho, Queila Souza Garcia
We investigated the thermal thresholds to seed germination and the variations in abscisic acid (ABA) levels and oxidative metabolism during seed dormancy-breaking and germination in two palm species with differences in desiccation tolerance. We used Mauritia flexuosa (buriti palm, desiccation-sensitive seeds) from swampy habitats (Veredas) and Attalea speciosa (babassu, desiccation-tolerant seeds)
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Correlated evolution of seed mass and genome size varies among life forms in flowering plants Seed Sci. Res. (IF 1.585) Pub Date : 2022-05-13 Angelino Carta, Efisio Mattana, John Dickie, Filip Vandelook
Seeds show important variation as plant regenerative units among species, but their evolutionary co-variations with other plant characteristics are still poorly understood. Whilst a positive association of seed mass with genome size (GS) and life forms has already been documented, a broad-scale quantification of their evolutionary correlation and adaptive selection has never been conducted. Here, we
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Cleistogamous spike and chasmogamous spike carbon remobilization improve the seed potential yield of Cleistogenes songorica under water stress Seed Sci. Res. (IF 1.585) Pub Date : 2022-04-27 Zhengshe Zhang, Mengjie Bai, Qibo Tao, Fan Wu, Qi Yan, Zhibiao Nan, Yanrong Wang, Jiyu Zhang
Developmental signals and environmental stresses regulate carbon distribution in the vegetative and reproductive organs of plants and affect seed yield. Cleistogenes songorica is a xerophytic grass with great potential application value in ecological restoration. However, how carbohydrate transport and distribution during grain filling affect the seed yield of C. songorica under water stress is not
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Seed traits and phylogenomics: prospects for the 21st century Seed Sci. Res. (IF 1.585) Pub Date : 2022-04-06 Mariko Nonogaki, Satoru Yamazaki, Eri Nishiyama, Kazuhiko Ohshima, Hiroyuki Nonogaki
Genetic and biochemical studies have greatly advanced our understanding of the biology of seeds in recent years. Another area of study, which could accelerate contemporary seed biology research, is phylogenomics that integrates the wealth of genome sequence data with evolutionary biology. The recent phylogenomic study of the DELAY OF GERMINATION1 family genes exemplifies how the molecular evolution
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More on seed longevity phenotyping Seed Sci. Res. (IF 1.585) Pub Date : 2022-03-29 Fiona R. Hay, Rachael M. Davies, John B. Dickie, David J. Merritt, Dustin M. Wolkis
Understanding the relative longevity of different seed lots, perhaps of different species or genotypes, but also following production under different environments or using different cultivation methods, or following different post-harvest treatments, is relevant to anyone concerned with the retention of seed lot viability and vigour during storage. However, different scientists over the years have
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Developing soybean seed germination: low ABA and high EXP1 gene expression promote embryonic axis growth whereas the seed coat delays radicle protrusion Seed Sci. Res. (IF 1.585) Pub Date : 2022-03-23 Nidia H. Montechiarini, Eligio N. Morandi, Carlos O. Gosparini
Seed germination implies an expansion process restarting the growth of the embryonic axis (Ax) and which is completed by radicle emergence through the seed covering layers. In developing soybean seeds, abscisic acid in Ax (ABAa) mainly inhibits Ax growth. Additionally, the expression of the EXP1 gene at the elongation zone (EZ) was found to be involved in the promotion of mature soybean Ax growth,
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Width of the temperature range for seed germination of herbaceous plant species in temperate eastern North America: life cycles, seasons and temperature variation and implication for climate warming Seed Sci. Res. (IF 1.585) Pub Date : 2022-02-02 Carol C. Baskin, Jerry M. Baskin, Xiao Wen Hu, Chun Hui Zhang
To persist (without immigration) in habitats with unpredictable environmental conditions, annuals must produce seeds each year or have a seed bank. Thus, we predicted that compared to perennials, annuals have a wider germination temperature range (GTR, the difference in temperature between the week with the highest and the week with the lowest germination during the natural germination season). We
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Syringaldehyde is a novel smoke-derived germination cue for the native fire-chasing tobacco, Nicotiana attenuata Seed Sci. Res. (IF 1.585) Pub Date : 2022-01-31 Dechang Cao, Matthias Schöttner, Rayko Halitschke, Dapeng Li, Gundega Baldwin, Catarina Rocha, Ian T. Baldwin
Smoke-derived seed germination is an important trait for plants to colonize postfire habitats. The well-characterized smoke-derived chemicals of karrikins germinate seeds of species not known to occur after fires in nature. Hence, the ecologically relevant germination cues in smoke remain to be explored for native postfire plants. With the fire-chaser, Nicotiana attenuata, we revisit a bioassay-driven
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Emergence speed comparison by non-linear regression and approached by time-to-event models for censored data Seed Sci. Res. (IF 1.585) Pub Date : 2022-01-31 Thomas B. Michelon, Andreza C. Belniaki, Cesar A. Taconeli, Elisa S. N. Vieira, Maristela Panobianco
Determining the germination speed is essential in experiments in the field of seed technology, as it allows the performance evaluation of a seed lot and the creation of predictive models. To this end, the literature addresses several methods and indexes. The objective of this study was to compare the main methods of emergence speed analysis in seeds, namely the non-linear regression models and the
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Seeds of the threatened dry rainforest tree Cadellia pentastylis (Surianaceae) are non-dormant Seed Sci. Res. (IF 1.585) Pub Date : 2022-01-10 Nathan J. Emery, Justin C. Collette
Cadellia pentastylis (Surianaceae) is an Australian endemic threatened rainforest tree. Irregular flowering and fruiting events coupled with high rates of infertility and insect predation has meant that seed testing has not been possible for this species. Seeds were opportunistically collected from a wild population in early 2021, which allowed for the first germination tests to be conducted. In this
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Environmental effect on temporal patterns in lentil seed quality development Seed Sci. Res. (IF 1.585) Pub Date : 2022-01-31 Katherine J. Whitehouse, Sally L. Norton
To maximize seed longevity, seeds should be harvested at optimal maturity, that is, when seeds have acquired maximum physiological quality before deterioration begins. The aim of this study was to map the variation in temporal patterns of lentil (Lens culinaris Medik.) seed quality development when grown across four regeneration environments, which differ in the level of temperature and humidity control
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The J. Derek Bewley Career Lecture. Seeds–plants–crops–biodiversity–environment–people: illustrating understanding and ideas Seed Sci. Res. (IF 1.585) Pub Date : 2022-01-10 Richard H. Ellis
The J. Derek Bewley Career Lectures presented at the triennial meetings of the International Society of Seed Science support early-career seed scientists by providing retrospective views, from those late in their careers, of lessons learned and future implications. Ambition, ability, inspiration, foresight, hard work and opportunity are obvious career requirements. The importance of mentoring and teamwork
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Seed recovery and germination rate after gut passage by Korean water deer (Hydropotes inermis argyropus) Seed Sci. Res. (IF 1.585) Pub Date : 2021-12-17 Seung-Kyung Lee, Woo-Jin Shin, Sangjin Ahn, Youngeun Kim, Jong-Taek Kim, Eun Ju Lee
Large herbivores can disperse seeds over long distances through endozoochory. The Korean water deer (Hydropotes inermis argyropus), an internationally vulnerable species but locally considered a vermin, is a potential endozoochorous seed dispersal vector. In this study, feeding experiments were conducted to test the efficiency of seed dispersal through gut ingestion by the Korean water deer, its temporal
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Serotiny in Melocactus matanzanus (Cactaceae) and role of cephalium in dispersal of seeds after the individual's death Seed Sci. Res. (IF 1.585) Pub Date : 2021-12-16 Duniel Barrios, Sandy Toledo, Jorge A. Sánchez, Luis R. González-Torres
Serotiny is a strategy in which the retention of mature seeds in parent structures allows plants to cope with environmental variability like heat, drought or fire. Although this phenomenon might be common in Cactaceae, and particularly in Melocactus, it has generally been scarcely addressed. The main goal of our work is to investigate if there are seeds hidden in the cephalium of Melocactus matanzanus
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The great diversity in kinds of seed dormancy: a revision of the Nikolaeva–Baskin classification system for primary seed dormancy Seed Sci. Res. (IF 1.585) Pub Date : 2021-12-01 Jerry M. Baskin, Carol C. Baskin
This review provides a revised and expanded word-formula system of whole-seed primary dormancy classification that integrates the scheme of Nikolaeva with that of Baskin and Baskin. Notable changes include the following. (1) The number of named tiers (layers) in the classification hierarchy is increased from three to seven. (2) Formulae are provided for the known kinds of dormancy. (3) Seven subclasses
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Phytohormone dynamics impact fatty acid and oil accumulation during soybean seed maturation Seed Sci. Res. (IF 1.585) Pub Date : 2021-11-09 Thien Q. Nguyen, Anna B. Kisiala, Nguyen Ngoc Hai, Suresh Narine, R. J. Neil Emery
Fatty acid (FA) levels and profiles are vital for soybean oil quality, while cytokinins (CKs) and abscisic acid (ABA) are potent regulators of plant growth and development. Previous research suggested associations between FA biosynthesis and hormonal signalling networks; however, hormonal regulation of FA accumulation during soybean (Glycine max) seed maturation has never been measured. We analysed
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How regional climate and seed traits interact in shaping stress–tolerance of savanna seeds? Seed Sci. Res. (IF 1.585) Pub Date : 2021-11-02 Leandro C. Ribeiro, Eduardo R. M. Barbosa, Fabian Borghetti
Functional traits related to regeneration responses to the environment are highly determinants of distribution patterns of plant communities. A large body of studies on seed traits suggests that regional climate may act as a strong filter of plant recruitment; however, few studies have evaluated the relative importance of seed traits and environmental filters for seed persistence at the population
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Relationship of the lateral embryo (in grasses) to other monocot embryos: a status up-grade Seed Sci. Res. (IF 1.585) Pub Date : 2021-10-19 Carol C. Baskin, Jerry M. Baskin
Martin placed the lateral embryo, which occurs only in grasses, adjacent to the broad embryo at the base of his family tree of seed phylogeny. Since Poales and Poaceae are derived monocots, we questioned the evolutionary relationship between the lateral embryo and other kinds of monocot embryos. Information was compiled on embryo and seed characteristics for the various families of monocots, kind of
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Deep complex morphophysiological dormancy in seeds of Viburnum plicatum var. formosanum (Adoxaceae) from subtropical mountains Seed Sci. Res. (IF 1.585) Pub Date : 2021-09-15 Shun-Ying Chen, Chiung-Pin Liu, Carol C. Baskin, Ching-Te Chien
Viburnum is a temperate-zone genus that also occurs in mountains of South America and Malesia, and seeds of many species have morphophysiological dormancy (MPD). Information on the level of MPD in seeds of species in various clades of Viburnum potentially would increase our understanding of the evolutionary relationships between the nine levels of MPD. Our aim was to determine the level of MPD in seeds
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Differences in seed germination response of two populations of Phelipanche ramosa (L.) Pomel to a set of GR24 concentrations and durations of stimulation Seed Sci. Res. (IF 1.585) Pub Date : 2021-09-15 Stéphanie Gibot-Leclerc, Manon Connault, Rémi Perronne, Fabrice Dessaint
Phelipanche ramosa is a major weed holoparasite characterized by a broad host range with a suboptimal development on numerous hosts, suggesting inter- or intra-species specificities. Seeds of P. ramosa germinate after exposure to exogenous chemicals exuded by surrounding host roots such as strigolactones, the concentrations of these germination stimulants varying between hosts. In France, P. ramosa
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A special section on pre-harvest sprouting in cereals Seed Sci. Res. (IF 1.585) Pub Date : 2021-09-01 Jirui Wang
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Obituary: Dr. Marc Alan Cohn 1949–2021 Seed Sci. Res. (IF 1.585) Pub Date : 2021-09-01 Henk Hilhorst
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Delayed germination of Brassica parachinensis seeds by coumarin involves decreased GA4 production and a consequent reduction of ROS accumulation Seed Sci. Res. (IF 1.585) Pub Date : 2021-08-10 Bing-Xian Chen, Yuan-Xuan Peng, Xue-Qin Yang, Jun Liu
The plant allelochemical coumarin effectively inhibits the germination of Brassica parachinensis (B. parachinensis) seeds. Quantification of endogenous phytohormones showed that contents of abscisic acid (ABA), ABA glucose ester, gibberellin A20 (GA20), GA3, GA15, GA24, GA9 and GA4 were higher in germinating seeds than in seedlings. Moreover, the presence of coumarin significantly reduced the content
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Osmo-priming in tomato seeds down-regulates genes associated with stress response and leads to reduction in longevity Seed Sci. Res. (IF 1.585) Pub Date : 2021-07-29 Ana C.P. Petronilio, Thiago B. Batista, Edvaldo A. Amaral da Silva
Tomato seeds subjected to osmo-priming show fast and more uniform germination. However, osmo-priming reduces seed longevity, which is a complex seed physiological attribute influenced by several mechanisms, including response to stress. Thus, to have new insights as to why osmo-primed tomato seeds show a short life span, we performed a transcript analysis during their priming. For that, we performed
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Seed dormancy of Lolium perenne L. related to the maternal environment during seed filling Seed Sci. Res. (IF 1.585) Pub Date : 2021-07-15 Rodrigo Fernández, Guillermo R. Chantre, Juan P. Renzi
Lolium perenne L. (perennial ryegrass) shows variable levels of seed physiological dormancy (PD), which depends on the genotype and environmental condition during seed development. To analyse the effect of field temperature and precipitation during seed filling on the PD, two cultivars were sown on five dates in 2014 and 2015. After harvest, the level of seed PD was 4–28%. High-temperature stress (>29°C)
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Quantifying seed germination based on thermal models to predict global climate change impacts on Cerrado species Seed Sci. Res. (IF 1.585) Pub Date : 2021-07-02 Amanda Ribeiro Correa, Ana Mayra Pereira da Silva, Carita Rodrigues de Aquino Arantes, Sebastião Carneiro Guimarães, Elisangela Clarete Camili, Maria de Fátima Barbosa Coelho
Seed germination is regulated by temperature and can thus be quantified by thermal models, which can predict germination occurrence in biomes and plant survival under possible climate change scenarios. The objective of this study was to quantify germination based on thermal time and survival risk of 14 species in the Brazilian Cerrado in scenarios of future climate change. Seeds were collected in the
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Investigation of flavonoid expression and metabolite content patterns during seed formation of Artemisia sphaerocephala Krasch. Seed Sci. Res. (IF 1.585) Pub Date : 2021-07-02 Chengshuai Li, Lijing Zhang, Decao Niu, Shuzhen Nan, Xiumei Miao, Xiaowei Hu, Hua Fu
Flavonoids are a group of phenolic secondary metabolites in plants that have important physiological, ecological and economic value. In this study, using the desert plant Artemisia sphaerocephala Krasch. as the sample material, the content and components of the total flavonoids in its seeds at seven different developmental stages were determined. In addition, the genes involved in flavonoid metabolism
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Activation and activity of plasma membrane H+-ATPase: key events in germinating Vicia faba seeds Seed Sci. Res. (IF 1.585) Pub Date : 2021-05-06 N.V. Obroucheva, S.V. Lityagina, I.A. Sinkevich
The regulation of plasma membrane H+-ATPase was considered in imbibing Vicia faba seeds, a distinctive feature of which is germination by cell elongation, whereas the mitotic activity starts later. The enzyme activation is known to precede germination because it provides H+ ion efflux from the cytoplasm to cell walls which favours their modification and loosening, being the prerequisites of cell elongation
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Desiccation tolerance and sensitivity of selected tropical montane species in Sri Lanka Seed Sci. Res. (IF 1.585) Pub Date : 2021-04-30 Yasoja S. Athugala, K. M. G. Gehan Jayasuriya, A. M. T. A. Gunaratne, Carol C. Baskin
Although the level of seed desiccation sensitivity (LSDS) may have an impact on plant species conservation, information is available for <10% of tropical angiosperms. A study was conducted to assess the LSDS of 28 tropical montane species in Sri Lanka. Seeds were extracted from freshly collected fruits. Initial weight was recorded, and thousand seed weight (TSW) was calculated. Seed moisture content
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Thermal requirements and germination niche breadth of Polygonum ferrugineum Wedd. from southeastern Brazil Seed Sci. Res. (IF 1.585) Pub Date : 2021-04-30 Andréa R. Marques, Ana Letícia B. R. Gonçalves, Fábio S. Santos, Diego Batlla, Roberto Benech-Arnold, Queila S. Garcia
Temperature may regulate seed dormancy and germination and determine the geographical distribution of species. The present study investigated the thermal limits for seed germination of Polygonum ferrugineum (Polygonaceae), an aquatic emergent herb distributed throughout tropical and subtropical America. Seed germination responses to light and temperature were evaluated both before (control) and after
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Using seed respiration as a tool for calculating optimal soaking times for ‘on-farm’ seed priming of barley (Hordeum vulgare) — ERRATUM Seed Sci. Res. (IF 1.585) Pub Date : 2021-04-29 Javier Carrillo-Reche,Adrian C. Newton,Richard S. Quilliam
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Does the lag time between radicle and epicotyl emergences in acorns of pedunculate oak (Quercus robur L.) depend on the duration of cold stratification and post-stratification temperatures? Modelling with the sigmoidal growth curves approach Seed Sci. Res. (IF 1.585) Pub Date : 2021-04-29 Szymon Jastrzębowski, Joanna Ukalska, Jeffrey L. Walck
The objective of this study was to determine how the current (10–16 weeks) and predicted future (2–8 weeks) length of cold stratification and current and predicted future post-stratification temperatures influence radicle and epicotyl emergence in acorns of Quercus robur. We tested radicle and epicotyl emergence at two temperatures corresponding to the current (15/6°C) and predicted future early autumn
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Phenotyping for resistance to pre-harvest sprouting in grain sorghum Seed Sci. Res. (IF 1.585) Pub Date : 2021-04-28 María Verónica Rodríguez, Gonzalo Joaquín Arata, Sandra Mabel Díaz, Santiago Rentería, Roberto L. Benech-Arnold
Pre-harvest sprouting (PHS) is a common threat to cereal crops in which the grain maturation phase takes place under rainy, moist conditions. Susceptibility to PHS is higher in sorghum genotypes displaying low levels of seed dormancy before harvest maturity. Other attributes such as glume or panicle morphology may also affect susceptibility to PHS. Breeding for resistance to PHS in grain sorghum requires
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The genetics of late maturity alpha-amylase (LMA) in North American spring wheat (Triticum aestivum L.) Seed Sci. Res. (IF 1.585) Pub Date : 2021-04-09 Chang Liu, Rehana S. Parveen, Samuel R. Revolinski, Kimberly A. Garland Campbell, Michael O. Pumphrey, Camille M. Steber
Genetic susceptibility to late maturity alpha-amylase (LMA) in wheat (Triticum aestivum L.) results in increased alpha-amylase activity in mature grain when cool conditions occur during late grain maturation. Farmers are forced to sell wheat grain with elevated alpha-amylase at a discount because it has an increased risk of poor end-product quality. This problem can result from either LMA or preharvest
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Investigating conditions that induce late maturity alpha-amylase (LMA) using Northwestern US spring wheat (Triticum aestivum L.) Seed Sci. Res. (IF 1.585) Pub Date : 2021-04-07 Chang Liu, Keiko M. Tuttle, Kimberly A. Garland Campbell, Michael O. Pumphrey, Camille M. Steber
The wheat industry rejects grain with unacceptably high α-amylase enzyme levels due to the risk of poor endproduct quality. There are two main causes of elevated grain α-amylase: (1) preharvest sprouting in response to rain before harvest and (2) late maturity α-amylase (LMA) induction in response to a cool temperature shock during late grain development. LMA induction was detected in a panel of 24