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Combined Transcriptomic and Metabolomic Analysis of Alginate Oligosaccharides Alleviating Salt Stress in Rice Seedlings by Du, You-Wei (author);Liu, Ling (author);Feng, Nai-Jie (author);Zheng, Dian-Feng (author);Liu, Mei-Ling (author);Zhou, Hang (author);Deng, Peng (author);Wang, Ya-xing (author);Zhao, Hui-Min (author) is a Agricultural and Biological Sciences article available to read on EtoBox.

What is Combined Transcriptomic and Metabolomic Analysis of Alginate Oligosaccharides Alleviating Salt Stress in Rice Seedlings about?

## Background Salt stress is one of the key factors limiting rice production. Alginate oligosaccharides (AOS) enhance plant stress resistance. However, the molecular mechanism underlying salt tolerance in rice induced by AOS remains unclear. FL478, which is a salt-tolerant indica recombinant inbred line and IR29, a salt-sensitive rice cultivar, were used to comprehensively analyze the effects of AOS sprayed on leaves in terms of transcriptomic and metabolite profiles of rice seedlings under salt stress. ## Results In this experiment, exogenous application of AOS increased SOD, CAT and APX activities, as well as GSH and ASA levels to reduce the damage to leaf membrane, increased rice stem diameter, the number of root tips, aboveground and subterranean biomass, and improved rice salt tolerance. Comparative transcriptomic analyses showed that the regulation of AOS combined with salt treatment induced the differential expression of 305 and 1030 genes in FL478 and IR29. The expressed genes enriched in KEGG pathway analysis were associated with antioxidant levels, photosynthesis, cell wall synthesis, and signal transduction. The genes associated with light-trapping proteins and RLCK rece

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Author

Du, You-Wei (author);Liu, Ling (author);Feng, Nai-Jie (author);Zheng, Dian-Feng (author);Liu, Mei-Ling (author);Zhou, Hang (author);Deng, Peng (author);Wang, Ya-xing (author);Zhao, Hui-Min (author)

Publisher

Springer Science and Business Media LLC

Published

2023

Field

Agricultural and Biological Sciences (Life Sciences)