Transcriptomic reprogramming in soybean seedlings under salt stress

被引：112

作者：

Liu, Ailin ^{[1
]}

Xiao, Zhixia ^{[1
,2
]}

Li, Man-Wah ^{[1
,2
]}

Wong, Fuk-Ling ^{[1
,2
]}

Yung, Wai-Shing ^{[1
,2
]}

Ku, Yee-Shan ^{[1
,2
]}

Wang, Qianwen ^{[1
,2
]}

Wang, Xin ^{[1
,2
]}

Xie, Min ^{[1
,2
]}

Yim, Aldrin Kay-Yuen ^{[1
,2
]}

Chan, Ting-Fung ^{[1
,2
]}

Lam, Hon-Ming ^{[1
,2
]}

机构：

[1] Chinese Univ Hong Kong, Ctr Soybean Res, State Key Lab Agrobiotechnol, Shatin, Hong Kong, Peoples R China

[2] Chinese Univ Hong Kong, Sch Life Sci, Shatin, Hong Kong, Peoples R China

来源：

PLANT CELL AND ENVIRONMENT | 2019年 / 42卷 / 01期

关键词：

gene expression reprogramming; metabolic adjustment; phytohormone signaling; salinity; soybean; transcriptome; ABSCISIC-ACID; ARABIDOPSIS-THALIANA; SIGNAL-TRANSDUCTION; GLYCINE-MAX; ENVIRONMENTAL SIGNALS; GENE-EXPRESSION; WATER-STRESS; AMINO-ACID; PROLINE; BIOSYNTHESIS;

D O I：

10.1111/pce.13186

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

To obtain a comprehensive understanding of transcriptomic reprogramming under salt stress, we performed whole-transcriptome sequencing on the leaf and root of soybean seedlings subjected to salt treatment in a time-course experiment (0, 1, 2, 4, 24, and 48 hr). This time series dataset enabled us to identify important hubs and connections of gene expressions. We highlighted the analysis on phytohormone signaling pathways and their possible crosstalks. Differential expressions were also found among those genes involved in carbon and nitrogen metabolism. In general, the salt-treated seedlings slowed down their photosynthetic functions and ramped up sugar catabolism to provide extra energy for survival. Primary nitrogen assimilation was shut down whereas nitrogen resources were redistributed. Overall, the results from the transcriptomic analyses indicate that the plant uses a multipronged approach to overcome salt stress, with both fast-acting, immediate physiological responses, and longer term reactions that may involve metabolic adjustment.

引用

页码：98 / 114

页数：17

共 101 条

[1] Sensitivity of Trifolium alexandrinum L. to salt stress is related to the lack of long-term stress-induced gene expression [J].