SAUR8, a small auxin-up RNA gene in poplar, confers drought tolerance to transgenic Arabidopsis plants

Chen, Feng; Wang, Ruijia; Wu, Caijuan; Lin, Miao; Yan, Hanwei; Xiang, Yan

doi:10.1016/j.gene.2022.146692

Cited by 3 publications

(2 citation statements)

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“…In the current study, up-regulation of this gene is observed through the involvement of IAA during the production and enhancement of growth and development process. Such a role of this protein family was consistent with previous studies on rice [ 80 ], Arabidopsis [ 81 , 82 ], and other plants [ 79 ] for auxin production, growth promotion, and enhanced development under various environmental stress conditions [ 83 , 84 ]. Heat shock protein gene “ hsp20 ” was also discovered among DEGs for the enhancement of salinity tolerance along with enhanced growth and development in the β-alanine-treated cotton seedling samples.…”

Section: Discussionsupporting

confidence: 90%

“…A considerable number of DEGs were observed in current findings of β-alanine-treated seedling samples related to the regulation of morpho-physiological pathways for enhancing salt stress tolerance. The small auxin up RNA “ saur ” gene (ko: K14488) encodes auxin (IAA) protein [ 79 ]. In the current study, up-regulation of this gene is observed through the involvement of IAA during the production and enhancement of growth and development process.…”

Section: Discussionmentioning

confidence: 99%

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Integrated Transcriptome and Metabolome Analysis of Salinity Tolerance in Response to Foliar Application of β-Alanine in Cotton Seedlings

Ren,

Chen

2023

Genes

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Salinity is amongst the serious abiotic stresses cotton plants face, impairing crop productivity. Foliar application of β-alanine is employed to improve salt tolerance in various crops, but the exact mechanism behind it is not yet completely understood. An advanced line SDS-01 of upland cotton Gossypium hirsutum L. was utilized to determine its salt tolerance. Foliar treatment with the β-alanine solution at different concentrations was applied to the seedlings stressed with 0.8% NaCl solution. On the 10th day of treatment, samples were collected for transcriptome and metabolome analyses. β-alanine solution at a concentration of 25 mM was found to be the best treatment with the lowest mortality rate and highest plant height and above-ground biomass under salt stress. Both differentially expressed genes and accumulated metabolites analyses showed improved tolerance of treated seedlings. The photosynthetic efficiency improved in seedlings due to higher expression of photosynthesis-antenna proteins and activation of hormones signal transduction after treatment with β-alanine. Highly expressed transcription factors observed were MYB, HD-ZIP, ARF, MYC, EREB, DELLA, ABF, H2A, H4, WRKY, and HK involved in the positive regulation of salinity tolerance in β-alanine-treated seedlings. Furthermore, compared to the control, the high accumulation of polyamines, coumarins, organic acids, and phenolic compounds in the β-alanine-treated seedlings helped regulate cellular antioxidant (glutathione and L-Cysteine) production. Hence, to improve salt tolerance and productivity in cotton, foliar application of β-alanine at the seedling stage can be a valuable management practice.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Integrated Transcriptome and Metabolome Analysis of Salinity Tolerance in Response to Foliar Application of β-Alanine in Cotton Seedlings

Ren,

Chen

2023

Genes

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Genome-wide analysis and expression characteristics of Small Auxin-up RNAs genes in flax (Linum usitatissimum L.)

Bao,

Zou,

Huang

et al. 2024

Industrial Crops and Products

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Transcriptomic Analysis of Differentially Expressed Genes in Arabidopsis thaliana Overexpressing BnMYB2 from Boehmeria nivea under Cadmium Stress

Zhu

Yan

et al. 2023

Catalysts

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Boehmeria nivea (ramie) is an important fiber crop with strong tolerance to cadmium (Cd). In our previous study, a novel MYB transcription factor gene from ramie, BnMYB2, was found to positively regulate Cd tolerance and accumulation in the transgenic Arabidopsis thaliana lines. Herein, transcriptome sequencing was performed to identify the differentially expressed genes involved in cadmium response between the wild-type (WT) and BnMYB2 overexpressed lines; 1598 differentially expressed genes (DEGs) were detected in the shoot. GO and KEGG analysis indicated that the majority of DEGs belonged to the categories of transcription factors, plant hormone signal transduction and nitrogen metabolism. The expression level of the Ib subgroup bHLH genes (AtbHLH38, AtbHLH39, AtbHLH100 and AtbHLH101) and nitrogen assimilation-related genes (AtNIA1, AtNIA2, AtNIR1 and AtASN2) were significantly higher than that of WT, accompanied with the positive changes in iron (Fe) and total nitrogen content in the shoot of BnMYB2 overexpression lines. Several DEGs belonging to the bZIP transcription factor family or SAUR family were also found up-regulated in the transgenic plants. These results provide important clues for elucidating how the molecular mechanisms of BnMYB2 regulate plant response to Cd stress.

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SAUR8, a small auxin-up RNA gene in poplar, confers drought tolerance to transgenic Arabidopsis plants

Cited by 3 publications

References 50 publications

Integrated Transcriptome and Metabolome Analysis of Salinity Tolerance in Response to Foliar Application of β-Alanine in Cotton Seedlings

Integrated Transcriptome and Metabolome Analysis of Salinity Tolerance in Response to Foliar Application of β-Alanine in Cotton Seedlings

Genome-wide analysis and expression characteristics of Small Auxin-up RNAs genes in flax (Linum usitatissimum L.)

Transcriptomic Analysis of Differentially Expressed Genes in Arabidopsis thaliana Overexpressing BnMYB2 from Boehmeria nivea under Cadmium Stress

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