Functional Characteristics Analysis of Dehydrins in Larix kaempferi under Osmotic Stress

Wang, Xuechun; Zhang, Meng; Xie, Bin; Jiang, Xiangning; Gai, Ying

doi:10.3390/ijms22041715

Cited by 11 publications

(4 citation statements)

References 30 publications

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“…Cherry cultivars showed a lower decrease in RWC and enzyme activities, but higher proline content than apple cultivars. The work of Wang et al [22] focused on dehydrins (DHNs) in Larix kaempferi that improve plant tolerance to abiotic stress. The results indicated that four LkDHNs help plants to survive stress by protecting DNA.…”

Section: Salt and Osmotic Stressmentioning

confidence: 99%

Environmental Stress and Plants

Mareri

Parrotta

Cai

2022

IJMS

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Land plants are constantly subjected to multiple unfavorable or even adverse environmental conditions. Among them, abiotic stresses (such as salt, drought, heat, cold, heavy metals, ozone, UV radiation, and nutrient deficiencies) have detrimental effects on plant growth and productivity and are increasingly important considering the direct or indirect effects of climate change. Plants respond in many ways to abiotic stresses, from gene expression to physiology, from plant architecture to primary, and secondary metabolism. These complex changes allow plants to tolerate and/or adapt to adverse conditions. The complexity of plant response can be further influenced by the duration and intensity of stress, the plant genotype, the combination of different stresses, the exposed tissue and cell type, and the developmental stage at which plants perceive the stress. It is therefore important to understand more about how plants perceive stress conditions and how they respond and adapt (both in natural and anthropogenic environments). These concepts were the basis of the Special Issue that International Journal of Molecular Sciences expressly addressed to the relationship between environmental stresses and plants and that resulted in the publication of 5 reviews and 38 original research articles. The large participation of several authors and the good number of contributions testifies to the considerable interest that the topic currently receives in the plant science community, especially in the light of the foreseeable climate changes. Here, we briefly summarize the contributions included in the Special Issue, both original articles categorized by stress type and reviews that discuss more comprehensive responses to various stresses.

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Section: Salt and Osmotic Stressmentioning

confidence: 99%

Environmental Stress and Plants

Mareri

Parrotta

Cai

2022

IJMS

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“…The GWAS analysis revealed LEA3 loci play a significant role in grain mold resistance in sorghum [46]. It was reported that NaCl treatment enhanced the signal of LkDHNs in the nucleus, indicating that LkDHNs may play roles in the plant cell nucleus under stress [47]. Arabidopsis LEA5 regulates organellar translation to enhance cellular respiration relative to photosynthesis when coping with stress [48].…”

Section: Discussionmentioning

confidence: 99%

The Late Embryogenesis Abundant Proteins in Soybean: Identification, Expression Analysis, and the Roles of GmLEA4_19 in Drought Stress

Guo,

Zhang,

Yang

et al. 2023

IJMS

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Late embryogenesis abundant (LEA) proteins play important roles in regulating plant growth and responses to various abiotic stresses. In this research, a genome-wide survey was conducted to recognize the LEA genes in Glycine max. A total of 74 GmLEA was identified and classified into nine subfamilies based on their conserved domains and the phylogenetic analysis. Subcellular localization, the duplication of genes, gene structure, the conserved motif, and the prediction of cis-regulatory elements and tissue expression pattern were then conducted to characterize GmLEAs. The expression profile analysis indicated that the expression of several GmLEAs was a response to drought and salt stress. The co-expression-based gene network analysis suggested that soybean LEA proteins may exert regulatory effects through the metabolic pathways. We further explored GnLEA4_19 function in Arabidopsis and the results suggests that overexpressed GmLEA4_19 in Arabidopsis increased plant height under mild or serious drought stress. Moreover, the overexpressed GmLEA4_19 soybean also showed a drought tolerance phenotype. These results indicated that GmLEA4_19 plays an important role in the tolerance to drought and will contribute to the development of the soybean transgenic with enhanced drought tolerance and better yield. Taken together, this study provided insight for better understanding the biological roles of LEA genes in soybean.

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“…Changes in metabolic activity and gene expression produce both general and stress-specific molecular responses that help the plant acclimate to changes in the environment [7]. Examples of this include the reduced rate of photosynthesis in response to drought stress in tomato plants [8], the increased expression of antioxidant proteins in response to stress in sugar beets [9], and the increase in proline content and antioxidant activity in apples and cherries in response to osmotic stress [10]. Regulation of gene expression in plants relies on a variety of molecular mechanisms that affect different steps in the lifecycle of a gene, including transcription, splicing, processing, transport from the nucleus to the cytoplasm, translation, and storage [11].…”

Section: Introductionmentioning

confidence: 99%

Effect of ABA Pre-Treatment on Rice Plant Transcriptome Response to Multiple Abiotic Stress

Habibpourmehraban,

Masoomi-Aladizgeh,

Haynes

2023

Biomolecules

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Half of the world’s population depends on rice plant cultivation, yet environmental stresses continue to substantially impact the production of one of our most valuable staple foods. The aim of this study was to investigate the changes in the transcriptome of the IAC1131 rice genotype when exposed to a suite of multiple abiotic stresses, either with or without pre-treatment with the plant hormone ABA (Abscisic acid). Four groups of IAC1131 rice plants were grown including control plants incubated with ABA, non-ABA-incubated control plants, stressed plants incubated with ABA, and non-ABA-incubated stressed plants, with leaf samples harvested after 0 days (control) and 4 days (stressed). We found that high concentrations of ABA applied exogenously to the control plants under normal conditions did not alter the IAC1131 transcriptome profile significantly. The observed changes in the transcriptome of the IAC1131 plants in response to multiple abiotic stress were made even more pronounced by ABA pre-treatment, which induced the upregulation of a significant number of additional genes. Although ABA application impacted the plant transcriptome, multiple abiotic stress was the dominant factor in modifying gene expression in the IAC1131 plants. Exogenous ABA application may mitigate the effects of stress through ABA-dependent signalling pathways related to biological photosynthesis functions. Pre-treatment with ABA alters the photosynthesis function negatively by reducing stomatal conductance, therefore helping plants to conserve the energy required for survival under unfavourable environmental conditions.

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Functional Characteristics Analysis of Dehydrins in Larix kaempferi under Osmotic Stress

Cited by 11 publications

References 30 publications

Environmental Stress and Plants

Environmental Stress and Plants

The Late Embryogenesis Abundant Proteins in Soybean: Identification, Expression Analysis, and the Roles of GmLEA4_19 in Drought Stress

Effect of ABA Pre-Treatment on Rice Plant Transcriptome Response to Multiple Abiotic Stress

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