Transcriptomic reprogramming in soybean seedlings under salt stress

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...

Full description

Saved in:
Bibliographic Details
Published in:Plant, cell and environment cell and environment, 2019-01, Vol.42 (1), p.98-114
Main Authors: Liu, Ailin, Xiao, Zhixia, Li, Man‐Wah, Wong, Fuk‐Ling, Yung, Wai‐Shing, Ku, Yee‐Shan, Wang, Qianwen, Wang, Xin, Xie, Min, Yim, Aldrin Kay‐Yuen, Chan, Ting‐Fung, Lam, Hon‐Ming
Format: Article
Language:English
Subjects:
Abiotic stress
Catabolism
Gene expression
Gene Expression Profiling
Gene Expression Regulation, Plant
gene expression reprogramming
Glycine max - metabolism
Glycine max - physiology
metabolic adjustment
Metabolism
Nitrogen
Nitrogen metabolism
Photosynthesis
Physiological responses
phytohormone signaling
Plant Leaves - metabolism
Plant Leaves - physiology
Plant Roots - metabolism
Plant Roots - physiology
salinity
Salt
Salt Stress - physiology
Salts
Seedlings
Seedlings - metabolism
Seedlings - physiology
Sequences
Shutdowns
soybean
Soybeans
Stress
Sugar
transcriptome
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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. We performed time‐course experiments to analyse the changes in gene expression profiles in conjunction with physiological adaptations and metabolic adjustments under salt stress. Using multiple time points, we are able to identify important hubs and connections of gene expressions. Our data indicate that soybean seedlings uses a multipronged approach to overcome salt stress, with both fast‐acting, immediate physiological responses, and longer term reactions that may involve metabolic adjustments.
ISSN:0140-7791
1365-3040
DOI:10.1111/pce.13186