Plant abiotic stress: New insights into the factors that activate and modulate plant responses

Gong, Zhizhong

doi:10.1111/jipb.13079

Cited by 75 publications

(50 citation statements)

References 15 publications

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Section: Ion Balancementioning

confidence: 99%

“…Early signals that trigger a salt stress response include excess Na + , the alteration of intracellular Ca 2+ levels, and the accumulation of reactive oxygen species (ROS) [ 4 ]. Under salt stress, excess Na + is perceived rapidly and triggers downstream sodium stress responses [ 10 ] ( Figure 1 ). Salt stress induces ion and osmotic stress, which leads to the elevation of Ca 2+ in the cytosol; thus, salt stress and changes in osmotic pressure are always associated with the activation of Ca 2+ channels.…”

Section: Salt Stress Sensingmentioning

confidence: 99%

“…Under salt stress, SOS3/SCaBP8-SOS2 also regulates the activities of other transporters involved in ion homeostasis. For instance, the K + and Na + transporters, vacuolar Na + /H + exchanger (NHX), vacuolar H + -ATPases, and pyrophosphatases (PPase) were reported to be regulated by the SOS pathway [ 10 ]. In summary, the SOS pathway maintains the Na + homeostasis and transports excess Na + from the cytosol to the apoplast to prevent the accumulation of Na + to toxic levels.…”

Section: Regulation Of Plant Response To Salt Stressmentioning

confidence: 99%

“…Salt stress adversely impacts plants by hindering seed germination, growth and development, and flowering and fruiting [ 8 , 9 ]. The high concentrations of sodium in saline soil limits water uptake and the absorption of nutrients in the plant [ 10 ]. Water deficiency and nutritional imbalance induce primary stresses, including osmotic stress and ionic stress.…”

Section: Introductionmentioning

confidence: 99%

“…These strategies include a series of signaling transduction pathways that are involved in activities ranging from salt stress sensing to the expression of many salt-stress-responsive genes, which regulate processes including ion transport, osmotic homeostasis, and detoxification. These mechanisms rely on multiple regulatory elements, such as phytohormones, lipids, the cell wall, and the cytoskeleton [ 10 , 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

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Regulation of Plant Responses to Salt Stress

Zhao

Zhang

Liu

et al. 2021

IJMS

551

290

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Salt stress is a major environmental stress that affects plant growth and development. Plants are sessile and thus have to develop suitable mechanisms to adapt to high-salt environments. Salt stress increases the intracellular osmotic pressure and can cause the accumulation of sodium to toxic levels. Thus, in response to salt stress signals, plants adapt via various mechanisms, including regulating ion homeostasis, activating the osmotic stress pathway, mediating plant hormone signaling, and regulating cytoskeleton dynamics and the cell wall composition. Unraveling the mechanisms underlying these physiological and biochemical responses to salt stress could provide valuable strategies to improve agricultural crop yields. In this review, we summarize recent developments in our understanding of the regulation of plant salt stress.

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Section: Ion Balancementioning

confidence: 99%

Section: Salt Stress Sensingmentioning

confidence: 99%

Section: Regulation Of Plant Response To Salt Stressmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Regulation of Plant Responses to Salt Stress

Zhao

Zhang

Liu

et al. 2021

IJMS

551

290

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Identification of the sweet orange (Citrus sinensis) bHLH gene family and the role of CsbHLH55 and CsbHLH87 in regulating salt stress

Zi,

Zhang,

Yang

et al. 2024

The Plant Genome

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Salt stress is one of the primary environmental stresses limiting plant growth and production and adversely affecting the growth, development, yield, and fruit quality of Citrus sinensis. bHLH (basic helix‐loop‐helix) genes are involved in many bioregulatory processes in plants, including growth and development, phytohormone signaling, defense responses, and biosynthesis of specific metabolites. In this study, by bioinformatics methods, 120 CsbHLHgenes were identified, and phylogenetic analysis classified them into 18 subfamilies that were unevenly distributed on nine chromosomes. The cis‐acting elements of the CsbHLH genes were mainly hormone‐related cis‐acting elements. Seventeen CsbHLH genes exhibited significant differences in expression under salt stress. Six CsbHLH genes with significant differences in expression were randomly selected for quantitative real‐time polymerase chain reaction (qRT‐PCR) validation. The qRT‐PCR results showed a strong correlation with the transcriptome data. Phytohormones such as jasmonic acid (JA) are essential for biotic and abiotic stress responses in plants, and CsbHLH55 and CsbHLH87 are considered candidate target genes for sweet orange MYC2 transcription factors involved in the JA signaling pathway. These genes are the main downstream effectors in the JA signaling pathway and can be activated to participate in the JA signaling pathway. Activation of the JA signaling pathway inhibits the production of reactive oxygen species and improves the salt tolerance of sweet orange plants. The CsbHLH55 and CsbHLH87 genes could be candidate genes for breeding new transgenic salt‐resistant varieties of sweet orange.

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Sodium-Induced Calcium Signaling in Plants Under Salinity Stress

Singh,

Choudhary

2024

Signaling and Communication in Plants

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Plant abiotic stress: New insights into the factors that activate and modulate plant responses

Cited by 75 publications

References 15 publications

Regulation of Plant Responses to Salt Stress

Regulation of Plant Responses to Salt Stress

Identification of the sweet orange (Citrus sinensis) bHLH gene family and the role of CsbHLH55 and CsbHLH87 in regulating salt stress

Sodium-Induced Calcium Signaling in Plants Under Salinity Stress

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