Some like it hot, some like it warm: phenotyping to explore thermotolerance diversity.
Some like it hot, some like it warm: phenotyping to explore thermotolerance diversity.
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DOI：
10.1016/j.plantsci.2012.06.004
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发表时间：
2012-10
期刊：
影响因子：
5.2
通讯作者：
Charng, Yee-Yung
中科院分区：
文献类型：
--
作者：
Yeh, Ching-Hui;Kaplinsky, Nicholas J.;Hu, Catherine;Charng, Yee-Yung
关键词：
植物对高温胁迫的不同方面进化出了重叠但不同的细胞反应。这些反应包括基础耐热性、短期和长期获得性耐热性以及对中等高温的耐热性。这种耐热性多样性意味着多种表型测定对于充分描述参与热应激反应的基因的功能至关重要。通过基因筛选和全基因组表达研究，已经鉴定出大量在热应激反应中具有潜在作用的基因。我们研究了用于表征拟南芥和农作物耐热表型的一系列表型测定。三个主要变量区分耐热性测定：1) 使用的热应激方案，2) 所研究植物的发育阶段，以及 3) 评分的实际表型。考虑这些变量对于加深我们对植物耐热性分子遗传学的理解至关重要。
Plants have evolved overlapping but distinct cellular responses to different aspects of high temperature stress. These responses include basal thermotolerance, short- and long-term acquired thermotolerance, and thermotolerance to moderately high temperatures. This thermotolerance diversity’ means that multiple phenotypic assays are essential for fully describing the functions of genes involved in heat stress responses. A large number of genes with potential roles in heat stress responses have been identified using genetic screens and genome wide expression studies. We examine the range of phenotypic assays that have been used to characterize thermotolerance phenotypes in both Arabidopsis and crop plants. Three major variables differentiate thermotolerance assays: 1) the heat stress regime used, 2) the developmental stage of the plants being studied, and 3) the actual phenotype which is scored. Consideration of these variables will be essential for deepening our understanding of the molecular genetics of plant thermotolerance.
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