Effects of exogenous plant regulators on growth and development of “Kyoho” grape under salt alkali stress

Zhao, Maoxiang; Li, Jiajia; Shi, Xiangneng; Sanaullah Malik, M.; Quan, Yi; Guo, Dinghan; Wang, Lei; Wang, Shiping

doi:10.3389/fpls.2023.1274684

Cited by 6 publications

(2 citation statements)

References 27 publications

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“…Under normal conditions, biological membranes are selectively permeable to maintain a stable intracellular environment. 43 When plants are subjected to adversity stress, the plant body’s own antioxidant mechanism is disrupted, resulting in the accumulation of large amounts of reactive oxygen species (ROS), which leads to changes in the permeability of the cell membrane. 44 After the cell membrane is disrupted, excessive accumulation of ROS leads to an increase in MDA content.…”

Section: Discussionmentioning

confidence: 99%

Exogenous melatonin delays leaves senescence and enhances saline and alkaline stress tolerance in grape seedlings

Yang,

Wei

et al. 2024

Plant Signaling & Behavior

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Saline and alkaline stress is one of the major abiotic stresses facing agricultural production, which severely inhibits the growth and yield of plant. The application of plant growth regulators can effectively prevent crop yield reduction caused by saline and alkaline stress. Exogenous melatonin (MT) can act as a signaling molecule involved in the regulation of a variety of physiological processes in plants, has been found to play a key role in enhancing the improvement of plant tolerance to abiotic stresses. However, the effects of exogenous MT on saline and alkaline tolerance of table grape seedlings and its mechanism have not been clarified. The aim of this study was to investigate the role of exogenous MT on morphological and physiological growth of table grape seedlings ( Vitis vinifera L.) under saline and alkaline stress. The results showed that saline and alkaline stress resulted in yellowing and wilting of grape leaves and a decrease in chlorophyll content, whereas the application of exogenous MT alleviated the degradation of chlorophyll in grape seedling leaves caused by saline and alkaline stress and promoted the accumulation of soluble sugars and proline content. In addition, exogenous MT increased the activity of antioxidant enzymes, which resulted in the scavenging of reactive oxygen species (ROS) generated by saline and alkaline stress. In conclusion, exogenous MT was involved in the tolerance of grape seedlings to saline and alkaline stress, and enhanced the saline and alkaline resistance of grape seedlings to promote the growth and development of the grape industry in saline and alkaline areas.

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Section: Discussionmentioning

confidence: 99%

Exogenous melatonin delays leaves senescence and enhances saline and alkaline stress tolerance in grape seedlings

Yang,

Wei

et al. 2024

Plant Signaling & Behavior

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“…The application of plant growth regulators (PGRs) can reduce the yield loss caused by salinity [22]. Nitric Oxide (NO) produced by plants or exogenous NO could reduce salt stress damage [23,24].…”

Section: Introductionmentioning

confidence: 99%

Metabolome and Transcriptome Analysis Revealed the Pivotal Role of Exogenous Melatonin in Enhancing Salt Tolerance in Vitis vinifera L.

Zhang,

Gao,

et al. 2024

IJMS

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Vitis vinifera L. possesses high economic value, but its growth and yield are seriously affected by salt stress. Though melatonin (MT) has been widely reported to enhance tolerance towards abiotic stresses in plants, the regulatory role melatonin plays in resisting salt tolerance in grapevines has scarcely been studied. Here, we observed the phenotypes under the treatment of different melatonin concentrations, and then transcriptome and metabolome analyses were performed. A total of 457 metabolites were detected in CK- and MT-treated cell cultures at 1 WAT (week after treatment) and 4 WATs. Exogenous melatonin treatment significantly increased the endogenous melatonin content while down-regulating the flavonoid content. To be specific, the melatonin content was obviously up-regulated, while the contents of more than a dozen flavonoids were down-regulated. Auxin response genes and melatonin synthesis-related genes were regulated by the exogenous melatonin treatment. WGCNA (weighted gene coexpression network analysis) identified key salt-responsive genes; they were directly or indirectly involved in melatonin synthesis and auxin response. The synergistic effect of salt and melatonin treatment was investigated by transcriptome analysis, providing additional evidence for the stress-alleviating properties of melatonin through auxin-related pathways. The present study explored the impact of exogenous melatonin on grapevines’ ability to adapt to salt stress and provided novel insights into enhancing their tolerance to salt stress.

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Exogenous brassinolides and calcium chloride synergically maintain quality attributes of jujube fruit (Ziziphus jujuba Mill.)

Ban,

Niu,

et al. 2024

Postharvest Biology and Technology

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Effects of exogenous plant regulators on growth and development of “Kyoho” grape under salt alkali stress

Cited by 6 publications

References 27 publications

Exogenous melatonin delays leaves senescence and enhances saline and alkaline stress tolerance in grape seedlings

Exogenous melatonin delays leaves senescence and enhances saline and alkaline stress tolerance in grape seedlings

Metabolome and Transcriptome Analysis Revealed the Pivotal Role of Exogenous Melatonin in Enhancing Salt Tolerance in Vitis vinifera L.

Exogenous brassinolides and calcium chloride synergically maintain quality attributes of jujube fruit (Ziziphus jujuba Mill.)

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