Transcriptome Profiling of Leaf Elongation Zone under Drought in Contrasting Rice Cultivars

被引：19

作者：

Cal, Andrew J. ^{[1
]}

Liu, Dongcheng ^{[1
]}

Mauleon, Ramil ^{[1
]}

Hsing, Yue-Ie Caroline ^{[2
]}

Serraj, Rachid ^{[1
]}

机构：

[1] Int Rice Res Inst, Los Banos, Philippines

[2] Acad Sinica, Inst Plant & Microbial Biol, Taipei 115, Taiwan

来源：

PLOS ONE | 2013年 / 8卷 / 01期

关键词：

GENE-EXPRESSION; WATER DEFICITS; FLOWERING TIME; MAIZE; XYLOGLUCAN; PEROXIDASE; ARABIDOPSIS; INCREASE; ENZYMES; GROWTH;

D O I：

10.1371/journal.pone.0054537

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Inhibition of leaf elongation and expansion is one of the earliest responses of rice to water deficit. Despite this sensitivity, a great deal of genetic variation exists in the extant of leaf elongation rate (LER) reduction in response to declining soil moisture. We analyzed global gene expression in the leaf elongation zone under drought in two rice cultivars with disparate LER sensitivities to water stress. We found little overlap in gene regulation between the two varieties under moderate drought; however, the transcriptional response to severe drought was more conserved. In response to moderate drought, we found several genes related to secondary cell wall deposition that were down regulated in Moroberekan, an LER tolerant variety, but up-regulated in LER sensitive variety IR64.

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页数：6

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