Primary seed dormancy : a temporally multilayered riddle waiting to be unlocked

© The Author 2016. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com.

Bibliographische Detailangaben
Veröffentlicht in:Journal of experimental botany. - 1985. - 68(2017), 4 vom: 01. Feb., Seite 857-869
1. Verfasser: Chahtane, Hicham (VerfasserIn)
Weitere Verfasser: Kim, Woohyun, Lopez-Molina, Luis
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2017
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Review Research Support, Non-U.S. Gov't ABA Arabidopsis dormancy endosperm germination seed. Plant Growth Regulators mehr... Abscisic Acid 72S9A8J5GW
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520 |a Primary seed dormancy is an important adaptive plant trait whereby seed germination is blocked under conditions that would otherwise be favorable for germination. This trait is found in newly produced mature seeds of many species, but not all. Once produced, dry seeds undergo an aging time period, called dry after-ripening, during which they lose primary dormancy and gradually acquire the capacity to germinate when exposed to favorable germination conditions. Primary seed dormancy has been extensively studied not only for its scientific interest but also for its ecological, phenological, and agricultural importance. Nevertheless, the mechanisms underlying primary seed dormancy and its regulation during after-ripening remain poorly understood. Here we review the principal developmental stages where primary dormancy is established and regulated prior to and during seed after-ripening, where it is progressively lost. We attempt to identify and summarize what is known about the molecular and genetic mechanisms intervening over time in each of these stages 
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