Different mechanisms for Arabidopsis thaliana hybrid necrosis cases inferred from temperature responses.
Different mechanisms for Arabidopsis thaliana hybrid necrosis cases inferred from temperature responses.
复制标题
从温度响应推断拟南芥杂交坏死病例的不同机制。
DOI：
10.1111/plb.12164
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
Muralidharan S
中科院分区：
文献类型：
--
作者：
Muralidharan S
温度是植物生长、发育和成功的主要决定因素。了解植物对温度的反应在气候变暖的情况下尤其重要。植物的免疫反应通常在物种特定的临界温度以上受到抑制。对于拟南芥种内杂种来说也是如此，由于来自不同基因组的等位基因之间的上位相互作用引起的免疫系统的不适当激活，表达杂种坏死。温度与防御之间的关系尚不清楚，这主要是由于缺乏评估大范围温度下免疫激活的研究。为了测试杂种中基于温度的异位免疫激活抑制是否表现出线性或非线性关系，我们表征了两种不同 necroticA 的分子和形态表型。 拟南芥杂种在一系列生态相关温度下。我们发现免疫标记物表达和形态缺陷的线性和非线性反应取决于潜在的遗传原因。这表明温度对免疫和生长之间权衡的影响取决于所涉及的特定防御成分。
Temperature is a major determinant of plant growth, development and success. Understanding how plants respond to temperature is particularly relevant in a warming climate. Plant immune responses are often suppressed above species‐specific critical temperatures. This is also true for intraspecific hybrids ofArabidopsis thalianathat express hybrid necrosis due to inappropriate activation of the immune system caused by epistatic interactions between alleles from different genomes. The relationship between temperature and defence is unclear, largely due to a lack of studies that assess immune activation over a wide range of temperatures. To test whether the temperature‐based suppression of ectopic immune activation in hybrids exhibits a linear or non‐linear relationship, we characterised the molecular and morphological phenotypes of two different necroticA. thalianahybrids over a range of ecologically relevant temperatures. We found both linear and non‐linear responses for expression of immunity markers and for morphological defects depending on the underlying genetic cause. This suggests that the influence of temperature on the trade‐off between immunity and growth depends on the specific defence components involved.
影响因子：
11.6
作者：
Rogers, EE;Ausubel, FM
通讯作者：
Ausubel, FM
影响因子：
64.8
作者：
Asai, T;Tena, G;Sheen, J
通讯作者：
Sheen, J
拟南芥cdd1突变体解开了生长缺陷引起的水杨酸信号的组成型激活。
影响因子：
4.9
作者：
Swadhin Swain;Shweta Roy;J. Shah;S. V. Van Wees;C. Pieterse;A. Nandi
通讯作者：
A. Nandi