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
More filters
Journal ArticleDOI
Variation in pre-harvest sprouting resistance, seed germination and changes in abscisic acid levels during grain development in diverse rice genetic resources
Gi-An Lee,Young-Ah Jeon,Ho-Sun Lee,Do-Yun Hyun,Jung Ro Lee,Myung-Chul Lee,Sok-Young Lee,Kyung-Ho Ma,Hee-Jong Koh +8 more
TL;DR: The diversity of germination ability detected in this study could be sustainably used for crop improvement and to help unveil the genetic and physiological basis of this quantitative trait.
Journal ArticleDOI
Soil moisture conditions affect the sensitivity of Bromus catharticus dormant seeds to light and the emergence pattern of seedlings.
TL;DR: Results indicate that the soil moisture environment experienced during dormancy affects the sensitivity to light of B. catharticus seeds, as well as the emergence pattern of seedlings.
Journal ArticleDOI
Context-dependent and variable effects of endohyphal bacteria on interactions between fungi and seeds
Justin P. Shaffer,Paul Camilo Zalamea,Carolina Sarmiento,Rachel E. Gallery,James W. Dalling,James W. Dalling,Adam S. Davis,David A. Baltrus,A. Elizabeth Arnold +8 more
TL;DR: EHB had rare and context-dependent effects on seed germination and viability, but their effects were strong when observed and the direction of effects depended upon fungal isolate-tree species pairs.
Journal ArticleDOI
Functional traits associated with plant colonizing and competitive ability influence species abundance during secondary succession: Evidence from subalpine meadows of the Qinghai-Tibetan Plateau.
Hui Zhang,Wei Qi,Kun Liu +2 more
TL;DR: The observed directional shifts in the relationships between traits (photosynthetic rate, leaf proline content, seed mass, and seed germination rate) and abundance with successional age bring two new understandings of community assembly during succession of subalpine meadows in the Qinghai–Tibetan Plateau.
Journal ArticleDOI
ANNEXIN1 mediates calcium-dependent systemic defense in Arabidopsis plants upon herbivory and wounding.
Jaiana Malabarba,Jaiana Malabarba,Anja K. Meents,Anja K. Meents,Michael Reichelt,Sandra S. Scholz,Edgar Peiter,Julia Rachowka,Dorota Konopka-Postupolska,Katie A. Wilkins,Julia M. Davies,Ralf Oelmüller,Axel Mithöfer +12 more
TL;DR: In this paper, the role of ANN1 in local and systemic defense of plants attacked by herbivorous Spodoptera littoralis larvae was investigated in Arabidopsis ANNEXIN1 (ANN1) plants.
References
More filters
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.