Arabidopsis ADF7 inhibits VLN1 to regulate actin filament dynamics and ROS accumulation in root hair development responses to osmotic stress

Che, Wang; Bi, Shuangtian; Liu, Caiyuan; Li, Mingyang; Liu, Xiaoyu; Cheng, Jianing; Wang, Lu; Lv, Yanling; He, Ming

doi:10.22541/au.161323959.99581548/v1

Cited by 2 publications

(2 citation statements)

References 48 publications

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“…In this study, the soluble sugar content of the K. foliatum leaves increased in the high-salt habitat (Figure 8), which is consistent with the research results of Wang et al [66]. Salt stress will first affect the plant roots, and the excessive ROS induced by salt stress seriously affect the root growth [67]. Proline is an important osmoregulation substance that plays an important role in plant responses to osmotic and salt stress by protecting the plant cell membranes and proteins, and it serves as a reactive oxygen species scavenger [68].…”

Section: Discussionsupporting

confidence: 91%

Variations in Physiological and Biochemical Characteristics of Kalidium foliatum Leaves and Roots in Two Saline Habitats in Desert Region

Jiang,

Wu,

et al. 2024

Forests

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Salt stress is a key environmental factor that has adverse effects on plant growth and development. High salinity induces a series of structural and functional changes in the morphological and anatomical features. The physiological and biochemical changes in K. foliatum in response to salt stress in natural environments are still unclear. Based on this, this study compared and analyzed the differences in the physiological and biochemical indicators between the leaf and root tissues in high-salt and low-salt habitats, selecting K. foliatum as the research object. The results showed that the chlorophyll contents in the leaves of K. foliatum decreased in the high-salt habitat, while the thicknesses of the upper and lower epidermises, as well as the thicknesses of the palisade tissue, significantly increased. The high-salt environment led to decreases in the N and P contents in the leaves and root tissues of K. foliatum, resulting in changes in the stoichiometric ratio of elements. The concentrations of C, N, and P in the roots of K. foliatum were lower than those in the leaves. The accumulation of Na+ in the K. foliatum roots was greater than that in the leaves, and the roots could promote the transport of sodium ions to the leaves. The contents of starch and soluble sugar in the leaves showed higher proportions in the high-salt habitat than in the low-salt habitat, while the changes in the roots and leaves were the opposite. As the salt content increased, the proline contents in the leaves and roots of K. foliatum significantly increased, and the proline contents in the roots of K. foliatum were lower than those in the leaves. The leaves and roots exhibited higher levels of peroxidase and superoxide enzymes in the high-salinity habitat than in the low-salinity habitat. The superoxide dismutase (SOD) activity of the K. foliatum leaves and catalase (CAT) activity of the roots were the “central traits” in the high-salt habitat. In the low-salt habitat, the leaf malondialdehyde (MDA) and root C/N were the central traits of the leaves and roots, indicating that K. foliatum adapts to changes in salt environments in different ways.

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Section: Discussionsupporting

confidence: 91%

Variations in Physiological and Biochemical Characteristics of Kalidium foliatum Leaves and Roots in Two Saline Habitats in Desert Region

Jiang,

Wu,

et al. 2024

Forests

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“…The principal locations of salt stress response are the roots, and the initial salt reaction is derived primarily from the roots. Roots are severely damaged by stress-induced ROS excess [ 54 , 55 ]. The POD, SOD, and CAT activities were higher in Malus zumi roots than in the leaves [ 46 ].…”

Section: Discussionmentioning

confidence: 99%

Transcriptome and Metabolome Analysis Reveals Salt-Tolerance Pathways in the Leaves and Roots of ZM-4 (Malus zumi) in the Early Stages of Salt Stress

Wang

Sun

et al. 2023

IJMS

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The breeding of salt-tolerant rootstock relies heavily on the availability of salt-tolerant Malus germplasm resources. The first step in developing salt-tolerant resources is to learn their molecular and metabolic underpinnings. Hydroponic seedlings of both ZM-4 (salt-tolerant resource) and M9T337 (salt-sensitive rootstock) were treated with a solution of 75 mM salinity. ZM-4’s fresh weight increased, then decreased, and then increased again after being treated with NaCl, whereas M9T337′s fresh weight continued to decrease. The results of transcriptome and metabolome after 0 h (CK) and 24 h of NaCl treatment showed that the leaves of ZM-4 had a higher content of flavonoids (phloretinm, naringenin-7-O-glucoside, kaempferol-3-O-galactoside, epiafzelechin, etc.) and the genes (CHI, CYP, FLS, LAR, and ANR) related to the flavonoid synthesis pathway showed up-regulation, suggesting a high antioxidant capacity. In addition to the high polyphenol content (L-phenylalanine, 5-O-p-coumaroyl quinic acid) and the high related gene expression (4CLL9 and SAT), the roots of ZM-4 exhibited a high osmotic adjustment ability. Under normal growing conditions, the roots of ZM-4 contained a higher content of some amino acids (L-proline, tran-4-hydroxy-L-prolin, L-glutamine, etc.) and sugars (D−fructose 6−phosphate, D−glucose 6−phosphate, etc.), and the genes (GLT1, BAM7, INV1, etc.) related to these two pathways were highly expressed. Furthermore, some amino acids (S-(methyl) glutathione, N-methyl-trans-4-hydroxy-L-proline, etc.) and sugars (D-sucrose, maltotriose, etc.) increased and genes (ALD1, BCAT1, AMY1.1, etc.) related to the pathways showed up-regulation under salt stress. This research provided theoretical support for the application of breeding salt-tolerant rootstocks by elucidating the molecular and metabolic mechanisms of salt tolerance during the early stages of salt treatment for ZM-4.

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Arabidopsis ADF7 inhibits VLN1 to regulate actin filament dynamics and ROS accumulation in root hair development responses to osmotic stress

Cited by 2 publications

References 48 publications

Variations in Physiological and Biochemical Characteristics of Kalidium foliatum Leaves and Roots in Two Saline Habitats in Desert Region

Variations in Physiological and Biochemical Characteristics of Kalidium foliatum Leaves and Roots in Two Saline Habitats in Desert Region

Transcriptome and Metabolome Analysis Reveals Salt-Tolerance Pathways in the Leaves and Roots of ZM-4 (Malus zumi) in the Early Stages of Salt Stress

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