The regulation of secondary dormancy. The membrane hypothesis revisited
The regulation of secondary dormancy. The membrane hypothesis revisited
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DOI：
10.1017/s0960258500003974
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发表时间：
1998-06-01
影响因子：
2.1
通讯作者：
Hilhorst, HWM
中科院分区：
文献类型：
--
作者：
Hilhorst, HWM
次生休眠主要与土壤种子库中的种子行为有关。次生休眠的周期性变化可以解释杂草物种的季节性出现。温度和可能的土壤水势似乎是决定休眠年循环的主要因素。休眠循环是由萌发刺激剂，如光和硝酸盐和萌发温度窗口的宽度的萌发反应的调制。膜已被提议为感知温度的主要目标。据推测，细胞膜性质的改变与休眠的调节有关。可能的机制进行了讨论。
Secondary dormancy is predominantly associated with seed behaviour in soil seed banks. Periodic changes in secondary dormancy may explain seasonal emergence of weedy species. Temperature and possibly soil water potential appear to be the predominant factors that determine the annual cycling of dormancy. Dormancy cycling is paralleled by modulations of germination responsiveness to germination stimulants, such as light and nitrate and to the width of the germination temperature window. Membranes have been proposed to be the primary target for the perception of temperature. It is hypothesized that alterations In properties of cellular membranes are involved in the regulation of dormancy. Possible mechanisms are discussed.