VvWRKY30, a grape WRKY transcription factor, plays a positive regulatory role under salinity stress

Zhu, Dan; Hou, Lixia; Xiao, Peilian; Guo, Yang; Deyholos, Michael K.; Liu, Xin

doi:10.1016/j.plantsci.2018.03.018

Cited by 115 publications

(53 citation statements)

References 38 publications

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“…The phylogenetic relationship among AtWRKYs, AdWRKYs and AiWRKYs was consistent with the results of previous studies [8,18]. Based on results of previous classification [8], the 158 AhWRKYs were grouped into three major clusters and five subgroups; I (33), IIa (6), IIb (22), IIc (38), IId (12), IIe (20), and III (27). However, I-N, I-C, IIb, IIc and III members were found to be nested in other groups or subgroups when the phylogenetic relationship between AdWRKYs and AiWRKYs was analyzed, which is similar to the results obtained in a previous study [18].…”

Section: Multiple Sequence Alignment Phylogenetic Tree Analysis and supporting

confidence: 90%

“…In transgenic Arabidopsis thaliana, overexpression of AtWRKY13 resulted in decreased Cadmium (Cd) accumulation with increased tolerance to it [26]. In grape, the expression of VvWRKY30 could improve salt tolerance by regulating the elimination of reactive oxygen and the accumulation of osmoticum [27]. Overexpression of TaWRKY2 conferred strong drought tolerance to transgenic wheat [28].…”

Section: Introductionmentioning

confidence: 99%

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Identification and expression analysis of WRKY gene family under drought stress in peanut (Arachis hypogaea L.)

Zhao

et al. 2020

PLoS ONE

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WRKY transcription factors play crucial roles in regulation mechanism leading to the adaption of plants to the complex environment. In this study, AhWRKY family was comprehensively analyzed using bioinformatic approaches in combination with transcriptome sequencing data of the drought-tolerant peanut variety 'L422'. A total of 158 AhWRKY genes were identified and named according to their distribution on the chromosomes. Based on the structural features and phylogenetic analysis of AhWRKY proteins, the AhWRKY family members were classified into three (3) groups, of which group II included five (5) subgroups. Results of structure and conserved motifs analysis for the AhWRKY genes confirmed the accuracy of the clustering analysis. In addition, 12 tandem and 136 segmental duplication genes were identified. The results indicated that segmental duplication events were the main driving force in the evolution of AhWRKY family. Collinearity analysis found that 32 gene pairs existed between Arachis hypogaea and two diploid wild ancestors (Arachis duranensis and Arachis ipaensis), which provided valuable clues for phylogenetic characteristics of AhWRKY family. Furthermore, 19 stress-related cis-acting elements were found in the promoter regions. During the study of gene expression level of AhWRKY family members in response to drought stress, 73 differentially expressed AhWRKY genes were obtained to have been influenced by drought stress. These results provide fundamental insights for further study of WRKY genes in peanut drought resistance.

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Section: Multiple Sequence Alignment Phylogenetic Tree Analysis and supporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Identification and expression analysis of WRKY gene family under drought stress in peanut (Arachis hypogaea L.)

Zhao

et al. 2020

PLoS ONE

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“…BHU-AV3-inoculated plant leaves had lower expression of antioxidant enzyme activities and fewer number of their isoforms compared to un-inoculated plant leaves under salt stress. The roots of BHU-AV3-inoculated plants accumulated higher proline content compared to non-inoculated plant roots under salt stress, suggesting the role of higher proline in the maintenance of osmotic balance inside the root (Claussen, 2005;Zhu et al, 2019). In addition, increased proline content protects membrane proteins and enzymes from oxidative burst (Szabados and Savouré, 2010).…”

Section: Discussionmentioning

confidence: 99%

Sphingobacterium sp. BHU-AV3 Induces Salt Tolerance in Tomato by Enhancing Antioxidant Activities and Energy Metabolism

Vaishnav

Singh

et al. 2020

Front. Microbiol.

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Salt tolerant bacteria can be helpful in improving a plant's tolerance to salinity. Although plant-bacteria interactions in response to salt stress have been characterized, the precise molecular mechanisms by which bacterial inoculation alleviates salt stress in plants are still poorly explored. In the present study, we aimed to determine the role of a salt-tolerant plant growth-promoting rhizobacteria (PGPR) Sphingobacterium BHU-AV3 for improving salt tolerance in tomato through investigating the physiological responses of tomato roots and leaves under salinity stress. Tomato plants inoculated with BHU-AV3 and challenged with 200 mM NaCl exhibited less senescence, positively correlated with the maintenance of ion balance, lowered reactive oxygen species (ROS), and increased proline content compared to the non-inoculated plants. BHU-AV3-inoculated plant leaves were less affected by oxidative stress, as evident from a reduction in superoxide contents, cell death, and lipid peroxidation. The reduction in ROS level was associated with the increased antioxidant enzyme activities along with multiple-isoform expression [peroxidase (POD), polyphenol oxidase (PPO), and superoxide dismutase (SOD)] in plant roots. Additionally, BHU-AV3 inoculation induced the expression of proteins involved in (i) energy production [ATP synthase], (ii) carbohydrate metabolism (enolase), (iii) thiamine biosynthesis protein, (iv) translation protein (elongation factor 1 alpha), and the antioxidant defense system (catalase) in tomato roots. These findings have provided insight into the molecular mechanisms of bacteria-mediated alleviation of salt stress in plants. From the study, we can conclude that BHU-AV3 inoculation effectively induces antioxidant systems and energy metabolism in tomato roots, which leads to whole plant protection during salt stress through induced systemic tolerance.

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“…Furthermore, DEGs from subcluster 5 that significantly inhibited by nutrient starvation in ZQUB15 were enriched in pathways involved in ribosome (Fig. 4) [21][22][23][24][25]. For example, members of WRKY family are essential regulators of plant innate immunity, and play key roles in regulating biotic and abiotic stress reactions in various plant species [6,26].…”

Section: Discussionmentioning

confidence: 99%

Comparative transcriptome analysis between high- and low-growth genotypes of Eucalyptus in response to nutrient stress

Yang¹,

Zhang²,

Zhang³

et al. 2020

Preprint

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Background: The role of macro and micro nutrients have been reported in various plant. However, in perennial trees, the function of multiple elements to different genotypes remain to be elucidated. This study aimed at deciphering the genetic architecture of physiological differences under different nutrient levels between the high- and low-growth genotypes. Results: Our results showed that growth traits of both genotypes at nutrient starvation treatment was much lower than that at nutrient abundant treatment, indicating that nutrient is essential for plant growth. However, tree height, crown width, and fresh weight of different tissues of ZQUA44 were much higher than that of ZQUB15 at the three nutrient levels, implicating the genetic basis of different trees is another factor that varied the phenotypic performance. The differentially expressed genes (DEGs) were clustered into 6 subclusters depending on different expression pattern. Functional annotation of DEGs from different subclusters showed that DEGs involved in glutathione metabolism, flavonoid biosynthesis and stilbenoid, diarylheptanoid and gingerol biosynthesis may responsible for nutrient starvation across different genotypes, while DEGs involved in carotenoid biosynthesis and starch and sucrose metabolism may have diverse function in different genotypes. The DEGs encoding MYB_related may responsible for nutrient deficiency of all the genotypes, while B3 may play different functions in different genotypes. Conclusion: Our results demonstrate that different genotypes may form different metabolic pathways to coordinate plant keeping survival when they face abiotic stresses. Furthermore, we elucidate DEGs that may widely responsible for nutrient deficiency in different treatments and DEGs that play different functions in different genotypes. Finally, our funding provide adequate nutrient supply for Eucalyptus.

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VvWRKY30, a grape WRKY transcription factor, plays a positive regulatory role under salinity stress

Cited by 115 publications

References 38 publications

Identification and expression analysis of WRKY gene family under drought stress in peanut (Arachis hypogaea L.)

Identification and expression analysis of WRKY gene family under drought stress in peanut (Arachis hypogaea L.)

Sphingobacterium sp. BHU-AV3 Induces Salt Tolerance in Tomato by Enhancing Antioxidant Activities and Energy Metabolism

Comparative transcriptome analysis between high- and low-growth genotypes of Eucalyptus in response to nutrient stress

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