Late Embryogenesis Abundant (LEA) proteins in legumes.
Late Embryogenesis Abundant (LEA) proteins in legumes.
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DOI：
10.3389/fpls.2013.00190
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发表时间：
2013
影响因子：
5.6
通讯作者：
Covarrubias AA
中科院分区：
文献类型：
--
作者：
Battaglia M;Covarrubias AA
植物暴露于影响生长、发育和生产力的不同外部条件。缺水是由干旱、盐分和极端温度引起的不利条件之一。植物产生了不同的反应来预防、改善或修复这些压力环境造成的损害。其中一个反应是激活一组编码一组亲水蛋白的基因，这些亲水蛋白通常在胚胎发生最后阶段的种子脱水过程中积累到高水平，因此被称为胚胎发生晚期丰富（LEA）蛋白。 LEA 蛋白也会因营养组织中的水分限制而积累，并根据其氨基酸序列相似性和独特保守基序的存在分为七组。这些蛋白质广泛分布在从蕨类植物到被子植物的植物界中，表明它们在植物对这种不利环境条件的反应中发挥着相关作用。在这篇综述中，我们分析了来自完整基因组已测序的豆科植物的 LEA 蛋白，例如菜豆、大豆、蒺藜苜蓿、百脉根、木豆和 Cicer arietinum。考虑到它们独特的基序，来自不同组的 LEA 蛋白被鉴定出来，并且它们的序列分析允许识别新的豆类特定基序。此外，我们根据公开数据编译了他们的成绩单积累模式。尽管有关豆类中这些蛋白质的信息有限，但此处汇编的分析和数据证实了它们的积累与水分亏缺之间的高度相关性，从而增强了它们在这种不利条件下的功能相关性。
Plants are exposed to different external conditions that affect growth, development, and productivity. Water deficit is one of these adverse conditions caused by drought, salinity, and extreme temperatures. Plants have developed different responses to prevent, ameliorate or repair the damage inflicted by these stressful environments. One of these responses is the activation of a set of genes encoding a group of hydrophilic proteins that typically accumulate to high levels during seed dehydration, at the last stage of embryogenesis, hence named Late Embryogenesis Abundant (LEA) proteins. LEA proteins also accumulate in response to water limitation in vegetative tissues, and have been classified in seven groups based on their amino acid sequence similarity and on the presence of distinctive conserved motifs. These proteins are widely distributed in the plant kingdom, from ferns to angiosperms, suggesting a relevant role in the plant response to this unfavorable environmental condition. In this review, we analyzed the LEA proteins from those legumes whose complete genomes have been sequenced such as Phaseolus vulgaris, Glycine max, Medicago truncatula, Lotus japonicus, Cajanus cajan, and Cicer arietinum. Considering their distinctive motifs, LEA proteins from the different groups were identified, and their sequence analysis allowed the recognition of novel legume specific motifs. Moreover, we compile their transcript accumulation patterns based on publicly available data. In spite of the limited information on these proteins in legumes, the analysis and data compiled here confirm the high correlation between their accumulation and water deficit, reinforcing their functional relevance under this detrimental conditions.
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影响因子：
7.4
作者：
BLACKMAN, SA;WETTLAUFER, SH;LEOPOLD, AC
通讯作者：
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影响因子：
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作者：
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通讯作者：
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影响因子：
3.7
作者：
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