Small secreted peptides encoded on the wheat (triticum aestivum L.) genome and their potential roles in stress responses.
Small secreted peptides encoded on the wheat (triticum aestivum L.) genome and their potential roles in stress responses.
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小麦（triticum aestivum L.）基因组上编码的小分泌肽及其在应激反应中的潜在作用。
DOI：
10.3389/fpls.2022.1000297
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发表时间：
2022
影响因子：
5.6
通讯作者：
中科院分区：
文献类型：
--
作者：
小分泌肽（Small secreted peptides, ssp）是植物细胞间通讯的重要信号，参与多种生长发育过程，以及对逆境的反应。虽然在各种植物物种中已经鉴定和鉴定了大量的ssp，但对小麦这种最重要的谷类作物之一的ssp知之甚少。本研究在小麦基因组中鉴定出4981个推测的SSP，其中1790个tasp被归为38个已知的SSP家族。结果还表明，大量假定的小麦ssp，特别是富含cys的肽，仍有待表征。几个TaSSP基因编码多个SSP结构域，包括CLE、HEVEIN和HAIRPININ结构域，两个潜在的新TaSSP家族DYY和CRP8CI在未预测的tasp中被人工鉴定出来。转录组学数据分析表明，很大比例的TaSSPs是在非生物胁迫下表达的。外源施用TraesCS1D02G130700编码的TaCEPID肽增强了小麦植株对干旱和盐的耐受性，提示ssp可能在调节小麦胁迫反应中发挥作用。
Small secreted peptides (SSPs) are important signals for cell-to-cell communication in plant, involved in a variety of growth and developmental processes, as well as responses to stresses. While a large number of SSPs have been identified and characterized in various plant species, little is known about SSPs in wheat, one of the most important cereal crops. In this study, 4,981 putative SSPs were identified on the wheat genome, among which 1,790 TaSSPs were grouped into 38 known SSP families. The result also suggested that a large number of the putaitive wheat SSPs, Cys-rich peptides in particular, remained to be characterized. Several TaSSP genes were found to encode multiple SSP domains, including CLE, HEVEIN and HAIRPININ domains, and two potentially novel TaSSP family DYY and CRP8CI were identified manually among unpredicted TaSSPs. Analysis on the transcriptomic data showed that a great proportion of TaSSPs were expressed in response to abiotic stresses. Exogenous application of the TaCEPID peptide encoded by TraesCS1D02G130700 enhanced the tolerance of wheat plants to drought and salinity, suggesting porential roles of SSPs in regulating stress responses in wheat.
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影响因子：
56.9
作者：
Fletcher, LC;Brand, U;Meyerowitz, EM
通讯作者：
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影响因子：
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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：
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作者：
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通讯作者：
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