Physiological and transcriptomic analyses of cadmium stress response in Dendrobium officinale seedling

Dendrobium officinale is an economically important Chinese herb with ornamental and medicinal values. However, the mechanisms by which D. officinale adapts to cadmium (Cd) stress is unknown. Here, physiological changes in D. officinale roots and leaves exposed to increasing levels of Cd stress (CdSO...

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Bibliographic Details
Published in:Plant physiology and biochemistry 2020-03, Vol.148, p.152-165
Main Authors: Jiang, Wu, Wu, Zhigang, Wang, Tao, Mantri, Nitin, Huang, Huilian, Li, Haowen, Tao, Zhengming, Guo, Qiaosheng
Format: Article
Language:English
Subjects:
Cadmium - toxicity
Cadmium stress
Dendrobium - drug effects
Dendrobium - genetics
Dendrobium officinale
Differential expression genes
Gene Expression Profiling
Gene Expression Regulation, Plant - drug effects
Glutathione metabolism
Physiology
Plant Roots - drug effects
Plant Roots - genetics
Seedlings - drug effects
Seedlings - genetics
Stress, Physiological - genetics
Transcriptome
Transcriptome - drug effects
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Summary:Dendrobium officinale is an economically important Chinese herb with ornamental and medicinal values. However, the mechanisms by which D. officinale adapts to cadmium (Cd) stress is unknown. Here, physiological changes in D. officinale roots and leaves exposed to increasing levels of Cd stress (CdSO4 concentration of 2, 5, 9, 14 mg L−1) were analyzed at 7, 15, 30, and 45 days after treatment. The Cd stress of 14 mg L−1 significantly increased the levels of antioxidants and induced malondialdehyde and proline accumulation (P 
ISSN:0981-9428
1873-2690
DOI:10.1016/j.plaphy.2020.01.010