Flavonol synthase gene MsFLS13 regulates saline-alkali stress tolerance in alfalfa

Zhang, Lishuang; Sun, Yugang; Ji, Jinqiang; Zhao, Weidi; Guo, Weileng; Li, Jiaqi; Bai, Yan; Wang, Dan; Yan, Zhe; Guo, Changhong

doi:10.1016/j.cj.2023.05.003

Cited by 9 publications

(1 citation statement)

References 91 publications

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“…These signals modulate downstream transcription factors (TFs) via a cascade response to further alter the transcript levels of a large number of TFs, including WRKY, AP2/ERF, and MYB (Zhao et al, 2020). Then, the expression of a large number of genes, such as ZFP179 (zinc-finger protein 179) (Sun et al, 2010), S1CBL10 (calcineurin B-like protein 10) (Egea et al, 2018), GsPRX9 (a peroxidase gene) (Jin et al, 2019), SbNHXLP (a Na + /H + antiporter-like protein) (Kumari et al, 2017), and MsFLS13 (saline-alkaline-induced flavonol synthase gene) (Zhang et al, 2023), are eventually affected, resulting in the development of the salt tolerance in the plants. In addition, many salt tolerance-related transporters or channels, including the plasma membrane Na + /H + antiporter (SOS1), have been identified in Gramineae.…”

Section: Introductionmentioning

confidence: 99%

Transcriptome analysis and physiological changes in the leaves of two Bromus inermis L. genotypes in response to salt stress

Song,

Gao,

et al. 2023

Front. Plant Sci.

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Soil salinity is a major factor threatening the production of crops around the world. Smooth bromegrass (Bromus inermis L.) is a high-quality grass in northern and northwestern China. Currently, selecting and utilizing salt-tolerant genotypes is an important way to mitigate the detrimental effects of salinity on crop productivity. In our research, salt-tolerant and salt-sensitive varieties were selected from 57 accessions based on a comprehensive evaluation of 22 relevant indexes, and their salt-tolerance physiological and molecular mechanisms were further analyzed. Results showed significant differences in salt tolerance between 57 genotypes, with Q25 and Q46 considered to be the most salt-tolerant and salt-sensitive accessions, respectively, compared to other varieties. Under saline conditions, the salt-tolerant genotype Q25 not only maintained significantly higher photosynthetic performance, leaf relative water content (RWC), and proline content but also exhibited obviously lower relative conductivity and malondialdehyde (MDA) content than the salt-sensitive Q46 (p < 0.05). The transcriptome sequencing indicated 15,128 differentially expressed genes (DEGs) in Q46, of which 7,885 were upregulated and 7,243 downregulated, and 12,658 DEGs in Q25, of which 6,059 were upregulated and 6,599 downregulated. The Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis showed that the salt response differences between Q25 and Q46 were attributed to the variable expression of genes associated with plant hormone signal transduction and MAPK signaling pathways. Furthermore, a large number of candidate genes, related to salt tolerance, were detected, which involved transcription factors (zinc finger proteins) and accumulation of compatible osmolytes (glutathione S-transferases and pyrroline-5-carboxylate reductases), etc. This study offers an important view of the physiological and molecular regulatory mechanisms of salt tolerance in two smooth bromegrass genotypes and lays the foundation for further identification of key genes linked to salt tolerance.

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