We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Transcriptome and Metabolome Reveal Salt-Stress Responses of Leaf Tissues from Dendrobium officinale.
- Authors
Zhang, Mingze; Yu, Zhenming; Zeng, Danqi; Si, Can; Zhao, Conghui; Wang, Haobin; Li, Chuanmao; He, Chunmei; Duan, Jun; Kudoyarova, Guzel; Sharma, Anket; Landi, Marco; Brestic, Marian; Yang, Xinghong; Zheng, Bingsong
- Abstract
Dendrobium officinale Kimura et Migo is a precious traditional Chinese medicine. Despite D. officinale displaying a good salt-tolerance level, the yield and growth of D. officinale were impaired drastically by the increasing soil secondary salinization. The molecular mechanisms of D. officinale plants' adaptation to salt stress are not well documented. Therefore, in the present study, D. officinale plants were treated with 250 mM NaCl. Transcriptome analysis showed that salt stress significantly altered various metabolic pathways, including phenylalanine metabolism, flavonoid biosynthesis, and α-linolenic acid metabolism, and significantly upregulated the mRNA expression levels of DoAOC, DoAOS, DoLOX2S, DoMFP, and DoOPR involved in the jasmonic acid (JA) biosynthesis pathway, as well as rutin synthesis genes involved in the flavonoid synthesis pathway. In addition, metabolomics analysis showed that salt stress induced the accumulation of some compounds in D. officinale leaves, especially flavonoids, sugars, and alkaloids, which may play an important role in salt-stress responses of leaf tissues from D. officinale. Moreover, salt stress could trigger JA biosynthesis, and JA may act as a signal molecule that promotes flavonoid biosynthesis in D. officinale leaves. To sum up, D. officinale plants adapted to salt stress by enhancing the biosynthesis of secondary metabolites.
- Subjects
DENDROBIUM; JASMONIC acid; PHENYLALANINE; CHINESE medicine; PLANT adaptation; METABOLITES; SOIL salinization
- Publication
Biomolecules (2218-273X), 2021, Vol 11, Issue 5, p736
- ISSN
2218-273X
- Publication type
Article
- DOI
10.3390/biom11050736