Seed dormancy and the control of germination
TLDR
It is argued that adaptation has taken place on a theme rather than via fundamentally different paths and similarities underlying the extensive diversity in the dormancy response to the environment that controls germination are identified.Abstract:
Seed dormancy is an innate seed property that defines the environmental conditions in which the seed is able to germinate. It is determined by genetics with a substantial environmental influence which is mediated, at least in part, by the plant hormones abscisic acid and gibberellins. Not only is the dormancy status influenced by the seed maturation environment, it is also continuously changing with time following shedding in a manner determined by the ambient environment. As dormancy is present throughout the higher plants in all major climatic regions, adaptation has resulted in divergent responses to the environment. Through this adaptation, germination is timed to avoid unfavourable weather for subsequent plant establishment and reproductive growth. In this review, we present an integrated view of the evolution, molecular genetics, physiology, biochemistry, ecology and modelling of seed dormancy mechanisms and their control of germination. We argue that adaptation has taken place on a theme rather than via fundamentally different paths and identify similarities underlying the extensive diversity in the dormancy response to the environment that controls germination.read more
Citations
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Journal ArticleDOI
MAPK11 regulates seed germination and ABA signaling in tomato by phosphorylating SnRKs.
Jianwen Song,Lele Shang,Xin Wang,Yali Xing,Wei Xu,Yuyang Zhang,Taotao Wang,Hanxia Li,Junhong Zhang,Zhibiao Ye +9 more
TL;DR: It is demonstrated that ABA signaling in tomato is affected by a mechanism that depends on MAPK11 phosphorylating SnRKs, and this ultimately influences seed germination.
Journal ArticleDOI
Seed regeneration in Mediterranean temporary ponds: germination ecophysiology and vegetation processes
TL;DR: A worldwide comparative study is required to better understand seed lifespan in MTPs and exhibit a Mediterranean germination syndrome and plastic germination response that is typical of neither truly aquatic nor wetland plants.
Journal ArticleDOI
Effect of population, collection year, after-ripening and incubation condition on seed germination of Stipa bungeana.
TL;DR: Testing the effect of seed population, collection year, after-ripening and incubation conditions on seed dormancy and germination of Stipa bungeana, a perennial grass used for revegetation of degraded grasslands on the Loess Plateau, China found the rank order of germination was not consistent in all germination tests, and it varied among populations.
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Plant behaviour in response to the environment: information processing in the solid state.
TL;DR: Here, some examples of biological information processing in plants are discussed, with special interest in the connection to formal computational models drawn from theoretical frameworks.
Journal ArticleDOI
Effects of Temperature, Dry Storage, and Burial on Dormancy and Germination of Seeds of 13 Desert Plant Species from Sand Dunes in the Gurbantunggut Desert, Northwest China
TL;DR: Both dry storage and burial decreased germination percentage of P. sibirica, indicating that dehydration, hypoxia, fluctuating water content, and/or frequent temperature fluctuations may induce seeds into secondary dormancy.
References
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Seeds. Ecology, Biogeography, and, Evolution of Dormancy and Germination 2nd ed
Carol C. Baskin,Jerry M. Baskin +1 more
Book
Seeds: Ecology, Biogeography, and, Evolution of Dormancy and Germination
Carol C. Baskin,Jerry M. Baskin +1 more
TL;DR: A Geographical Perspective on Germination Ecology: Tropical and Sub-tropical Zones as discussed by the authors, Temperate and Arctic Zones, and Semi-Arctic Zones: Temperate, Subtropical, and Arctic zones.
Journal ArticleDOI
Seeds: Physiology of Development and Germination.
Book
Seeds: Physiology of Development and Germination
J. D. Bewley,Michael Black +1 more
TL;DR: Seeds: Germination, Structure, and Composition; Development-Regulation and Maturation; Mobilization of Stored Seed Reserves; and some Ecophysiological Aspects.
Journal ArticleDOI
Seed Germination and Dormancy.
TL;DR: This review provides both an overview of the essential processes that are associated with germination and a description of the possible impediments thereto that may result in dormancy.