Seed Science Research最新文献

Development of a predictive model for vigour loss in soybean seed 大豆种子活力丧失预测模型的建立

IF 2.1 3区生物学

Seed Science Research Pub Date : 2026-09-25 DOI: 10.1017/s0960258526100257

María Rita Gonzalez, Juan Alberto Arguello, Diego Batlla

{"title":"Development of a predictive model for vigour loss in soybean seed","authors":"María Rita Gonzalez, Juan Alberto Arguello, Diego Batlla","doi":"10.1017/s0960258526100257","DOIUrl":"https://doi.org/10.1017/s0960258526100257","url":null,"abstract":"Maintaining high vigour values during post-harvest storage is a key goal for the seed industry, since high-vigour seeds ensure proper crop establishment under different agroclimatic conditions. The objective of this study was to evaluate the effect of seed moisture, storage temperature, initial vigour and damage on vigour loss in soybean seeds and to develop a model to predict this process based on the evaluated variables. For this purpose, soybean lots with different moisture and vigour levels were obtained by accelerated ageing (AAT) at harvest. Seeds were hermetically stored at 15°C and 25°C for seven months, and vigour was assessed at regular intervals using AAT (72 h at 41°C). The dynamics of vigour loss were fitted to a negative cumulative normal distribution function, and the obtained parameters (P V50 and σ) were related through regressions to initial quality and storage conditions. The model accurately predicted vigour loss in most cases. The results allowed quantification of the impact of each factor and simulation of scenarios to improve management and maintain vigour during storage. This provides a useful tool to optimize decisions regarding storage, monitoring and marketing of soybean seeds.","PeriodicalId":21711,"journal":{"name":"Seed Science Research","volume":"6 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149033086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimizing germination in oldman saltbush ( Atriplex nummularia ): understanding seed traits and identifying abiotic limits 优化芒硝种子萌发：了解种子性状和识别非生物限制

IF 2.1 3区生物学

Seed Science Research Pub Date : 2026-09-16 DOI: 10.1017/s0960258526100221

Sarah M. Rich, Simone Pedrini, Joshua K. Hendry, Hayley Norman

{"title":"Optimizing germination in oldman saltbush ( Atriplex nummularia ): understanding seed traits and identifying abiotic limits","authors":"Sarah M. Rich, Simone Pedrini, Joshua K. Hendry, Hayley Norman","doi":"10.1017/s0960258526100221","DOIUrl":"https://doi.org/10.1017/s0960258526100221","url":null,"abstract":"Oldman saltbush ( Atriplex nummularia Lindl.) is an Australian woody shrub valued for livestock forage and shelter in saline, hot and semi-arid environments. Adoption is constrained by reliance on nursery-grown seedlings, as direct seeding remains unreliable. Despite its agricultural importance, quantitative data on optimal germination conditions are limited. We evaluated eight F₁ lines to quantify variation in propagule dry weight, seed fill percentage and seed weight over three seasons, and ascertained germination rate (GR), cardinal temperatures and low water potentials for germination. Seeds were germinated across a temperature range (5–50°C) and water potentials (0 to −1.5 MPa, generated using PEG6000 solutions), and GRs fitted to segmented linear or linear models. Collection year was the largest contributor to seed fill percentage, while maternal line was most important for propagule and seed weights. Ranking of most lines remained stable across years. All lines achieved high germination (74–98%) at cool temperatures. Germination declined rapidly above 25°C, with optimal temperatures of 18.1–23.8°C. At 40°C, germination percentage varied from 32% to 69% and was negligible at 50°C. Base water potential for germination differed significantly between lines (−1.16 to −1.69 MPa); water potential had minimal effect to −0.75 MPa, but both rate and proportion declined sharply at more negative potentials; at −1.5 MPa, germination was below 20% for all lines. Oldman saltbush’s preference for cool, moist germination conditions likely reflects adaptation to Mediterranean environments, enabling establishment before summer drought. Integrating these traits with nutritional value and agronomic performance will inform selection for nursery production and direct sowing.","PeriodicalId":21711,"journal":{"name":"Seed Science Research","volume":"4 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148973300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

FLOWERING LOCUS C orthologues with expression maxima in seeds are associated with an effect of vernalisation intensity on seed size Brassica napus 开花基因座C同源基因在种子中表达最大值与春化强度对甘蓝型油菜种子大小的影响有关

IF 2.1 3区生物学

Seed Science Research Pub Date : 2026-09-16 DOI: 10.1017/s0960258526100154

Becca Doherty, Xiang Lu, Francesca Stefanato, Jo Hepworth, Eleri Tudor, Hugh Woolfenden, Catherine Chinoy, Carmel M. O'Neill, Rachel Wells, Steven Penfield

{"title":"FLOWERING LOCUS C orthologues with expression maxima in seeds are associated with an effect of vernalisation intensity on seed size Brassica napus","authors":"Becca Doherty, Xiang Lu, Francesca Stefanato, Jo Hepworth, Eleri Tudor, Hugh Woolfenden, Catherine Chinoy, Carmel M. O'Neill, Rachel Wells, Steven Penfield","doi":"10.1017/s0960258526100154","DOIUrl":"https://doi.org/10.1017/s0960258526100154","url":null,"abstract":"Warming during seed development can have negative impacts on seed size and crop yield across many species. Given the fact that there is substantial maternal control of seed size, it is also possible that temperature earlier in the growth cycle can affect crop physiology. Here, we analyse the response of a Brassica napus diversity set to variation in chilling temperature and duration. Our results show that increasing the chilling intensity positively affects seed size and weight, in addition to increasing the average number of seeds in each pod. Furthermore, we show that instead of silencing in response to vernalization, FLC C03a and FLC C09b genes show increasing expression during reproductive development that reaches a maximum in seeds, while retaining a clear effect of prior vernalization intensity on gene expression. We identify a weak allele of FLC C09b in Chinese semi-winter rapeseed varieties with an insertion in the first intron that is associated with a reduction in the sensitivity of seed size to variation in vernalization duration. We conclude that breeding for seed size traits may be important for mitigating the effects of low winter chilling on winter rapeseed yields.","PeriodicalId":21711,"journal":{"name":"Seed Science Research","volume":"17 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148973301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dry after-ripening increases germination of critically imperilled Physaria thamnophila (Zapata bladderpod) 干燥的成熟后增加了极度危险的绒泡菌（袋足）的萌发

IF 2.1 3区生物学

Seed Science Research Pub Date : 2026-08-05 DOI: 10.1017/s0960258526100208

Christopher A. Gabler, Jerald T. Garrett

{"title":"Dry after-ripening increases germination of critically imperilled Physaria thamnophila (Zapata bladderpod)","authors":"Christopher A. Gabler, Jerald T. Garrett","doi":"10.1017/s0960258526100208","DOIUrl":"https://doi.org/10.1017/s0960258526100208","url":null,"abstract":"Effective endangered plant conservation and recovery require empirical knowledge of seed dormancy release and responses to post-collection handling, yet such information is lacking for many rare taxa. Physaria thamnophila (Zapata bladderpod; Brassicaceae), a critically imperilled (G1) species endemic to southern Texas, USA, is poorly studied, and basic questions regarding seed storage and germination remain unresolved. We evaluated the effects of short-term cool-storage duration (14–180 d), storage temperature (refrigeration vs. freezing), dry after-ripening and maternal plant identity on germination probability and timing in P. thamnophila . Dry after-ripening and increased cool-storage duration consistently increased germination and shortened germination time, whereas storage temperature had comparatively weak effects. Germination probability increased from 45% in seeds planted directly from cool storage to 74% following dry after-ripening, and mean germination time was reduced by approximately 3 d. Seeds held in cool storage for longer durations germinated more rapidly and at higher percentages, indicating progressive dormancy release during storage. Maternal plant identity explained substantial variation in both germination probability and timing. Freezer storage resulted in only a marginal reduction in germination probability and did not affect germination timing, suggesting short-term freezing tolerance. P. thamnophila seeds exhibit physiological dormancy, retain viability for at least 210 d under short-term post-collection conditions and are likely tolerant of freezing. This study provides practical guidance for managing limited seed collections and conservation and recovery of P. thamnophila , as well as new, ecologically relevant information that increases our understanding of how this species is adapted to episodic rainfall in its habitat.","PeriodicalId":21711,"journal":{"name":"Seed Science Research","volume":"37 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148675032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Testa morphology and permeability of weedy Amaranthus species 苋属杂草种荚膜形态及通透性

IF 2.1 3区生物学

Seed Science Research Pub Date : 2026-07-17 DOI: 10.1017/s096025852610021x

Morag Wood, Giovambattista Depietra, Jonathan Rains, Neil Carter, Bo Li, Marta Pérez, Gerhard Leubner-Metzger, Kazumi Nakabayashi, Thomas Edward Holloway

{"title":"Testa morphology and permeability of weedy Amaranthus species","authors":"Morag Wood, Giovambattista Depietra, Jonathan Rains, Neil Carter, Bo Li, Marta Pérez, Gerhard Leubner-Metzger, Kazumi Nakabayashi, Thomas Edward Holloway","doi":"10.1017/s096025852610021x","DOIUrl":"https://doi.org/10.1017/s096025852610021x","url":null,"abstract":"The testa (seed coat) plays an important role in the regulation of seed dormancy and germination as well as the exchange of water, gas and solutes from the environment. In this study, we investigated testa permeability and its relationship with germination kinetics in contrasting populations of three weedy Amaranthus spp.: A. palmeri, A. retroflexus and A. tamariscinus . The microstructure of the testa was observed for two of these species using scanning electron microscopy, and a bespoke image analysis solution was developed to quantify the thickness of the testa in different regions of the seed. The permeability of the testa in contrasting populations was assessed using a range of pesticidal compounds with varying physicochemical properties, and germination responses to gibberellic acid and norflurazon were evaluated. Our results revealed both within- and between-species differences in testa thickness and permeability; however, it was challenging to associate these differences with responses to germination stimulants. Burial experiments demonstrated that testa permeability is a dynamic trait which can change over time depending on the solute. This work provides insights for colleagues using germination stimulants or inhibitors to study seed physiology as well as a fundamental understanding for developing more effective weed management strategies. Future work could focus on the biochemical and molecular basis of differential testa permeability in seeds.","PeriodicalId":21711,"journal":{"name":"Seed Science Research","volume":"64 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148460310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

To grow or not to grow: questioning seed dormancy and thermal germination responses along elevational gradients in four plant taxa 生长与不生长：四个植物类群沿海拔梯度的种子休眠和热萌发响应

IF 2.1 3区生物学

Seed Science Research Pub Date : 2026-06-01 DOI: 10.1017/s096025852610018x

Megan J. Hirst, Anthony R. Rendall, Daniel J. White, Ary Hoffmann, Jeronimo Vazquez-Ramirez

{"title":"To grow or not to grow: questioning seed dormancy and thermal germination responses along elevational gradients in four plant taxa","authors":"Megan J. Hirst, Anthony R. Rendall, Daniel J. White, Ary Hoffmann, Jeronimo Vazquez-Ramirez","doi":"10.1017/s096025852610018x","DOIUrl":"https://doi.org/10.1017/s096025852610018x","url":null,"abstract":"Dormancy and germination determine when and where plants recruit, and their occurrence reflects current environmental conditions as well as the evolutionary history of the species. As such, they are central to predicting how plants will respond to climate change. Here, we examined dormancy and germination responses in 21 species and subspecies representing four major and endemic Australian plant groups ( Eucalyptus, Callistemon, Brachyscome and Deyeuxia ). Seeds were collected along an elevational gradient (31–1,822 m a.s.l.), focusing on contrasting high- and low-elevation species. To assess physiological dormancy, seeds were subjected to two pretreatments: soaking in deionized water (control) or gibberellic acid (250 ppm) for 8 hours. Seeds were then incubated across six constant temperatures (5–30°C) to quantify germination responses and thermal niches. High-elevation species exhibited stronger dormancy than lowland species, although responses to dormancy-breaking treatments were group-specific, reflecting phylogenetic differences. High-elevation species generally germinated more at warmer temperatures (20–30°C) and less at cooler temperatures (10–15°C), whereas lowland species showed broader thermal niches, with germination across most tested temperatures. These results indicate that elevation-related climatic conditions shape dormancy and germination traits, with implications for species persistence and distribution under climate change.","PeriodicalId":21711,"journal":{"name":"Seed Science Research","volume":"43 1","pages":"1-10"},"PeriodicalIF":2.1,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148285852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of vegetation structure and seed morphology on secondary wind dispersal strategies 植被结构和种子形态对二次风传播策略的影响

IF 2.1 3区生物学

Seed Science Research Pub Date : 2026-05-28 DOI: 10.1017/s0960258526100166

Jiaqi Zhang, Quanlai Zhou, Ercha Hu, Xiangrong Li, Xiao Han, Yan Jiang, Yongcui Wang, Lixin Wang

{"title":"Effects of vegetation structure and seed morphology on secondary wind dispersal strategies","authors":"Jiaqi Zhang, Quanlai Zhou, Ercha Hu, Xiangrong Li, Xiao Han, Yan Jiang, Yongcui Wang, Lixin Wang","doi":"10.1017/s0960258526100166","DOIUrl":"https://doi.org/10.1017/s0960258526100166","url":null,"abstract":"Vegetation structure is an important factor influencing the secondary dispersal distance of wind-dispersed seeds. How vegetation structure and seed characteristics interact to affect seed secondary dispersal strategies remains unclear. We collected data on seed morphological and aerodynamic traits, lift-off wind and dispersal velocities for 12 wind-dispersed species with six types of appendages using a large-scale wind tunnel simulating the seed secondary wind dispersal across six simulated vegetation structures of desert steppe, typical steppe and meadow steppe to analyze the effects of vegetation structures and seed traits on the seed secondary dispersal strategy. Seeds with pappi exhibiting large projected area, low mass, low wing loading and low terminal velocity were less affected by vegetation obstruction and tended to adopt telechory strategies across all vegetation structures. Conversely, seeds with one wing that demonstrated a small projected area, high mass, wing loading and terminal velocity were less affected by vegetation structures and tended to adopt an antitelechory strategy. Seeds with disc-shaped, four wings, balloons and thorns, characterized by higher mass, wing loading, density and terminal velocity, adopted a shift from telechory, atelechory or antitelechory strategies depending on vegetation structures. In sparse vegetation structures (bare ground or simulated desert steppe), they mostly adopt telechory or atelechory strategies, whereas in dense and high vegetation structures (simulated typical steppe and meadow steppe), they adopt antitelechory or atelechory strategies. In conclusion, secondary seed wind-dispersal strategies are jointly determined by the interaction between vegetation structure and seed morphology characteristics.","PeriodicalId":21711,"journal":{"name":"Seed Science Research","volume":"428 1","pages":"1-9"},"PeriodicalIF":2.1,"publicationDate":"2026-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148285876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Distinct roles of VEL family proteins in Arabidopsis seed development reveal VEL1 and VRN5 as regulators of seed abortion VEL家族蛋白在拟南芥种子发育中的不同作用揭示了VEL1和VRN5是种子败育的调控因子

IF 2.1 3区生物学

Seed Science Research Pub Date : 2026-05-26 DOI: 10.1017/s0960258526100130

Thiago Barros-Galvão, Xiaochao Chen, Francesca Stefanato, Steven Penfield

{"title":"Distinct roles of VEL family proteins in Arabidopsis seed development reveal VEL1 and VRN5 as regulators of seed abortion","authors":"Thiago Barros-Galvão, Xiaochao Chen, Francesca Stefanato, Steven Penfield","doi":"10.1017/s0960258526100130","DOIUrl":"https://doi.org/10.1017/s0960258526100130","url":null,"abstract":"During seed development, plants detect the paternal genome dose through gene expression from the paternally derived genome in the endosperm. To achieve this, the homologous genes in the maternally derived genome are silenced by polycomb repressive complex 2 (PRC2), and loss of PRC2 function or excess paternal genome dose both lead to seed abortion through the so-called ‘triploid block’. PRC2 requires the activity of accessory proteins of the VERNALIZATION INSENSITIVE 3-LIKE (VEL) family, of which the atypical VEL3 protein is required for endosperm development. Here, we characterize the function of the remaining family members, using CRISPR-Cas9 to generate multiple mutants in Arabidopsis. Loss-of-function analyses establish VEL3 as the sole regulator of primary seed dormancy depth, whereas VEL1 and VRN5 act redundantly alongside VEL3 to prevent seed abortion but without affecting dormancy. VEL2 and VIN3 exhibited no detectable influence on seed abortion or dormancy. Comparative RNA-seq of mature endosperm revealed that both vel3-1 and vel1-2 vrn5-9 mutants upregulate programmed cell-death genes, whereas vel3-1 uniquely deregulates chromatin remodellers and metabolic repressors, consistent with heterochromatin relaxation at germination loci and elevated metabolic activity. Our results establish that the role of VEL3 in seed dormancy is independent of PRC2, as they suggest the involvement of novel members of central cell and endosperm PRC2 complexes in regulating the maternally derived genome in the endosperm.","PeriodicalId":21711,"journal":{"name":"Seed Science Research","volume":"34 1","pages":"1-8"},"PeriodicalIF":2.1,"publicationDate":"2026-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148285877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Silver nanoparticle seed priming as a redox-driven regulator of seed germination and stress memory 银纳米粒子种子启动作为氧化还原驱动的种子萌发和胁迫记忆调节器

IF 2.1 3区生物学

Seed Science Research Pub Date : 2026-05-18 DOI: 10.1017/s0960258526100178

Aranzazu Gomez-Garay, Beatriz Pintos

{"title":"Silver nanoparticle seed priming as a redox-driven regulator of seed germination and stress memory","authors":"Aranzazu Gomez-Garay, Beatriz Pintos","doi":"10.1017/s0960258526100178","DOIUrl":"https://doi.org/10.1017/s0960258526100178","url":null,"abstract":"Seed germination is a critical developmental transition regulated by coordinated physiological and biochemical processes during the triphasic imbibition process. Water uptake is followed by membrane repair, restoration of mitochondrial respiration, ATP production and activation of hydrolytic enzymes involved in reserve mobilization. In this context, silver nanoparticle (AgNP) seed priming has emerged as a promising strategy to enhance germination by modulating early biochemical events through controlled redox signalling, although its effects vary among species and experimental conditions. This review integrates physiological, biochemical and molecular evidence to propose a seed-centred mechanistic framework explaining how AgNPs regulate germination through redox-dependent signalling networks. During imbibition, low AgNP concentrations can induce transient reactive oxygen species production through the combined effects of nanoparticles and released Ag⁺ ions, together with moderate thiol-based redox shifts acting as developmental signals. These signals activate antioxidant systems, mitogen-activated protein kinase cascades and hormone-dependent pathways coordinating metabolic activation and membrane repair. Controlled redox modulation may also establish a primed physiological state that improves tolerance to abiotic stress during early seedling establishment. In contrast, excessive AgNP or Ag⁺ exposure disrupts glutathione-based redox buffering, causing oxidative damage, mitochondrial dysfunction and inhibition of germination. The magnitude and direction of these responses depend on intrinsic seed traits, including seed coat permeability, imbibition kinetics and antioxidant capacity, as well as nanoparticle properties such as size, surface chemistry and ion release dynamics. Distinguishing nanoparticle-specific effects from Ag⁺-mediated toxicity is therefore essential for interpreting nanopriming outcomes and developing safe, species-specific crop applications.","PeriodicalId":21711,"journal":{"name":"Seed Science Research","volume":"55 1","pages":"1-11"},"PeriodicalIF":2.1,"publicationDate":"2026-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148285935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Seed dormancy and germination of Solanaceae from a phylogenetic and world vegetation perspective 从系统发育和世界植被的角度看茄科植物的种子休眠和萌发

IF 2.1 3区生物学

Seed Science Research Pub Date : 2026-04-24 DOI: 10.1017/s0960258526100142

Carol C. Baskin, Jerry M. Baskin

{"title":"Seed dormancy and germination of Solanaceae from a phylogenetic and world vegetation perspective","authors":"Carol C. Baskin, Jerry M. Baskin","doi":"10.1017/s0960258526100142","DOIUrl":"https://doi.org/10.1017/s0960258526100142","url":null,"abstract":"Species of Solanaceae grow in rainforests, grasslands and deserts and especially montane/subalpine habitats of South America. The highest number of genera and species occurs in South America, but centres of species richness also are found in Africa, Australia, China and Mesoamerica. Information on embryo morphology was found for all eight subfamilies of Solanaceae and 236 species in 87 genera. Cestroideae, Pentunioideae, Nicotianoideae and Solanoideae have spatulate and linear-full embryos, while Duckeodendroideae, Goetzeoideae, Schizanthoideae and Schwenckioideae have linear-full embryos. Information on seed dormancy/germination was found for 167 species in 32 genera: 10 tree and 1 vine species in the tropics; 53 and 31 shrubs species in tropical and temperate zones, respectively; and 47 and 25 herb species in tropical and temperate zones, respectively. Physiological dormancy (PD) occurs in 94.5% of the 167 species; the other nine species had nondormant seeds. Regardless of subfamily, embryo morphology and vegetation region, most species have seeds with PD that can be broken during dry storage or cold stratification. Of the six types of nondeep PD, Type 2 occurs in a few temperate species; other types have not been documented. Soil seed banks have been documented in four subfamilies, 12 genera and 39 species, many of which are agricultural weeds. We identified questions that need to be answered about cold and heat tolerance of Solanaceae species, world distribution, especially in northern latitudes with a cold winter, and development of Type 2 nondeep PD as an adaptation of Solanaceae species that enhances survival in cold climates.","PeriodicalId":21711,"journal":{"name":"Seed Science Research","volume":"33 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147736621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0