Sucrose transport in response to drought and salt stress involves ABA‐mediated induction of <i>OsSWEET13</i> and <i>OsSWEET15</i> in rice

Mathan, Jyotirmaya; Singh, Anuradha; Ranjan, Aashish

doi:10.1111/ppl.13210

Cited by 113 publications

(80 citation statements)

References 73 publications

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“…The BvTST2.1 was found to be involved in vacuolar sugar uptake in taproots of sugar beet [ 103 ], and BvSUT1 is required for sucrose loading into the phloem of sugar beet leaves [ 102 ]. Sugar transporters in different plants, including Arabidopsis , rice, barley, and soybean, are known to be involved in abiotic stress response [ 104 , 105 , 106 ]. However, we still do not know how sugar transporters in beets respond to salt or drought stress.…”

Section: Morpho-physiological Biochemical and Molecular Changes Under Salinity And Droughtmentioning

confidence: 99%

Salt and Drought Stress Responses in Cultivated Beets (Beta vulgaris L.) and Wild Beet (Beta maritima L.)

Yolcu

Alavilli

Ganesh

et al. 2021

Plants

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Cultivated beets, including leaf beets, garden beets, fodder beets, and sugar beets, which belong to the species Beta vulgaris L., are economically important edible crops that have been originated from a halophytic wild ancestor, Beta maritima L. (sea beet or wild beet). Salt and drought are major abiotic stresses, which limit crop growth and production and have been most studied in beets compared to other environmental stresses. Characteristically, beets are salt- and drought-tolerant crops; however, prolonged and persistent exposure to salt and drought stress results in a significant drop in beet productivity and yield. Hence, to harness the best benefits of beet cultivation, knowledge of stress-coping strategies, and stress-tolerant beet varieties, are prerequisites. In the current review, we have summarized morpho-physiological, biochemical, and molecular responses of sugar beet, fodder beet, red beet, chard (B. vulgaris L.), and their ancestor, wild beet (B. maritima L.) under salt and drought stresses. We have also described the beet genes and noncoding RNAs previously reported for their roles in salt and drought response/tolerance. The plant biologists and breeders can potentiate the utilization of these resources as prospective targets for developing crops with abiotic stress tolerance.

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Section: Morpho-physiological Biochemical and Molecular Changes Under Salinity And Droughtmentioning

confidence: 99%

Salt and Drought Stress Responses in Cultivated Beets (Beta vulgaris L.) and Wild Beet (Beta maritima L.)

Yolcu

Alavilli

Ganesh

et al. 2021

Plants

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“…Cytokinin-mediated repression of SWEET5 transporters might be ascribed to contribute in the process of delaying the drought-induced senescence. OsSWEET13 and OsS-WEET15 transporters, involved in regulating the sucrose transport and levels in response to the abiotic stresses, were induced by abscisic acid (ABA)-responsive transcription factor OsbZIP72 that directly binds to the promoters of OsS-WEET13 and OsSWEET15 and activates their expression (Mathan et al 2020). Largely, our study on the accumulation patterns of proteins involved in sugar metabolism and transport suggests that cytokinins antagonize the effect of drought on these proteins.…”

Section: Effect Of Cytokinin On the Metabolism And Transport Of Sucrose During Drought Stressmentioning

confidence: 83%

“…On the other hand, the accumulation of other SWEET transporters, SWEET6, SWEET7, and SWEET15, was not influenced by the treatment of cytokinin in the flag leaves of rice. SWEET5 and SWEET13 transporters, implicated in the efflux of sugars across the plasma membrane, are primarily involved in phloem loading of sucrose from the source (Streubel et al 2013;Zhou et al 2014;Mathan et al 2020). SWEET5 proteins have also been ascribed for their role to promote senescence and prevent growth in rice (Zhou et al 2014).…”

Section: Effect Of Cytokinin On the Metabolism And Transport Of Sucrose During Drought Stressmentioning

confidence: 99%

A synthetic cytokinin influences the accumulation of leaf soluble sugars and sugar transporters, and enhances the drought adaptability in rice

et al. 2021

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Oryza sativa cv. PTT1 (Pathumthani1) was treated with phenyl-urea-based synthetic cytokinin under drought stress. Soluble sugar contents were examined in rice flag leaves at tillering and grain-filling stages. The same leaf samples were used to analyze the differential abundance intensities of proteins related to metabolism and transport of soluble sugars, and the process of senescence. The results showed drought-induced accumulation of hexose sugars (glucose and fructose) in rice flag leaves, which could be corroborated with enhanced accumulation of MST8 under drought stress. On the other hand, cytokinin-treated plants maintained the normal contents of hexose sugar in their flag leaves under drought stress, alike wellwatered plants. In the case of sucrose, cytokinin treatment reduced its accumulation at tillering stage, but the results were reversed at the grain-filling stage, where the cytokinin-treated plants maintained significantly higher contents of sucrose under drought stress. Growth stage dependent variations in sucrose contents corroborated with the accumulation of SPS (SPS1, SPS2, and SPS5) proteins, implicated in sucrose biosynthesis. In our study, among the proteins involved in sucrose transport, SUT1 transporter was induced by drought stress at both the growth stages, whereas SUT2 transporter accumulated equally in all the treatments. However, cytokinin treatment reversed the effect of drought on the accumulation of SUT1. Similarly, SWEET5, and SWEET13 proteins, which were induced by drought stress treatment, were inhibited by cytokinin treatment. However, the accumulation SWEET6, SWEET7, and SWEET15 was not influenced by the treatment of cytokinin in the flag leaves of rice. In addition, cytokinin treatment reduced the leaf wilting, enhanced the fresh weight and grain yield, and curtailed the accumulation of proteins involved in drought-induced senescence. In conclusion, the cytokinin treatment had a positive agro-economic impact on the rice plants and provided better drought adaptability.

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“…The study of FtbZIPs genes by ABA treatment will be helpful to clarify the role of FtbZIP in plant [19], It also provides important insights for studying Tartary buckwheat to deal with abiotic stress [20,21], to screen more high-quality Tartary buckwheat varieties [22].…”

Section: Discussionmentioning

confidence: 99%

Expression analysis of 19 bZIP genes in Tartary buckwheat and it’s response to abscisic acid (ABA)

Xiao¹,

Liu²,

Wang³

et al. 2021

Preprint

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Tartary buckwheat is a kind of plant which can be used as medicine as well as edible. ABA signaling is important for plants to respond to drought. In this study, the germination, root length, stoma, and anthocyanin accumulation of Tartary buckwheat were all significantly affected by ABA. In ABA signaling, the bZIP gene family is a critical member of the ABA signaling pathway in plants, which plays an important role in plants response to drought. Through the analysis of the origin relationship between the bZIP family and related species, found that 19 bZIP genes in Tartary buckwheat were relatively conservative, which laid a foundation for the further study of the bZIP family. qRT-PCR showed that most of the group members were induced by ABA stress, including different times or concentration of ABA. In addition, the expression patterns of FtbZIPs in plant organs were different, indicating that they may have different functions in Tartary buckwheat responding to drought. In a word, this study will be helpful to further analyze and provide clues to improve the genetic breeding of Tartary buckwheat for drought resistance and its economic value.

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Sucrose transport in response to drought and salt stress involves ABA‐mediated induction of OsSWEET13 and OsSWEET15 in rice

Cited by 113 publications

References 73 publications

Salt and Drought Stress Responses in Cultivated Beets (Beta vulgaris L.) and Wild Beet (Beta maritima L.)

Salt and Drought Stress Responses in Cultivated Beets (Beta vulgaris L.) and Wild Beet (Beta maritima L.)

A synthetic cytokinin influences the accumulation of leaf soluble sugars and sugar transporters, and enhances the drought adaptability in rice

Expression analysis of 19 bZIP genes in Tartary buckwheat and it’s response to abscisic acid (ABA)

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