Role of ROS and auxin in plant response to metal-mediated stress

Yuan, Hongmei; Liu, Wen‐Cheng; Jin, Yan; Lu, Ying‐Tang

doi:10.4161/psb.24671

Cited by 70 publications

(21 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similar studies have been carried out earlier in various plant species under As stress [22,23]. Co-application of Se and auxin improved the growth of seedlings which could be attributed to their synergistic effect and the role of auxin to regulate the plant growth and development [7,11]. Reduced values of chlorophyll was recorded under As stress, which may be correlated to the inhibition of chlorophyll biosynthesis due to metal mediated inhibition of ı-aminolevulinic acid dehydratase activity reported by Srivastava et al [5] and Ahmad and Gupta [22] or may also be due to the per-oxidative breakdown of pigment and chloroplast membrane lipids by ROS.…”

Section: Discussionmentioning

confidence: 50%

See 1 more Smart Citation

Selenium and auxin mitigates arsenic stress in rice (Oryza sativa L.) by combining the role of stress indicators, modulators and genotoxicity assay

Pandey

Gupta

2015

Journal of Hazardous Materials

160

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 50%

“…Further, in recent years some crops and their genotypes have been analyzed for their As and Se accumulation and most of them are focused on terrestrial plants and a few in crop plants [4,10]. Recent development in plant hormonal interaction have shown possible involvement of auxin under metal stress [8,11].…”

Section: Introductionmentioning

confidence: 99%

Selenium and auxin mitigates arsenic stress in rice (Oryza sativa L.) by combining the role of stress indicators, modulators and genotoxicity assay

Pandey

Gupta

2015

Journal of Hazardous Materials

160

View full text Add to dashboard Cite

“…Reactive oxygen species (ROS) in plants remain at a relatively stable level under normal physiological conditions. However, heavy metal stress will cause an imbalance in the production and clearance of H 2 O 2 , leading to oxidative damage to plant cells due to excessive accumulation of ROS [65,66]. We found that eight TaDof genes (TaDof95, TaDof96, TaDof46, TaDof49, TaDof64, TaDof16, TaDof31 and TaDof29) were significantly upregulated under heavy metal stress (Fig.…”

Section: Expression and Functions Of Tadof Genes In Response To Abiotmentioning

confidence: 78%

Genome-wide analysis of wheat DNA-binding with one finger (Dof) transcription factor genes: evolutionary characteristics and diverse abiotic stress responses

Liu

Deng

et al. 2020

BMC Genomics

View full text Add to dashboard Cite

Background: DNA binding with one finger (Dof) transcription factors play important roles in plant growth and abiotic stress responses. Although genome-wide identification and analysis of the DOF transcription factor family has been reported in other species, no relevant studies have emerged in wheat. The aim of this study was to investigate the evolutionary and functional characteristics associated with plant growth and abiotic stress responses by genome-wide analysis of the wheat Dof transcription factor gene family. Results: Using the recently released wheat genome database (IWGSC RefSeq v1.0), we identified 96 wheat Dof gene family members, which were phylogenetically clustered into five distinct subfamilies. Gene duplication analysis revealed a broad and heterogeneous distribution of TaDofs on the chromosome groups 1 to 7, and obvious tandem duplication genes were present on chromosomes 2 and 3.Members of the same gene subfamily had similar exon-intron structures, while members of different subfamilies had obvious differences. Functional divergence analysis indicated that type-II functional divergence played a major role in the differentiation of the TaDof gene family. Positive selection analysis revealed that the Dof gene family experienced different degrees of positive selection pressure during the process of evolution, and five significant positive selection sites (30A, 31 T, 33A, 102G and 104S) were identified. Additionally, nine groups of coevolving amino acid sites, which may play a key role in maintaining the structural and functional stability of Dof proteins, were identified. The results from the RNA-seq data and qRT-PCR analysis revealed that TaDof genes exhibited obvious expression preference or specificity in different organs and developmental stages, as well as in diverse abiotic stress responses. Most TaDof genes were significantly upregulated by heat, PEG and heavy metal stresses. Conclusions: The genome-wide analysis and identification of wheat DOF transcription factor family and the discovery of important amino acid sites are expected to provide new insights into the structure, evolution and function of the plant Dof gene family.

show abstract

“…There is evidence that phytohormones play an important role in the expression of Al toxicity and the subsequent responses of the plants to this stress. Whilst brief consideration has been given to the role of phytohormones in Al toxicity elsewhere (He et al, 2012;Yuan et al, 2013;Matsumoto et al 2015;Yang & Horst, 2015), the present review extends this existing information. In particular, the present review aims to examine the nature of the roles of phytohormones, giving particular consideration to understanding the role of phytohormones in Al toxicity itself and the response of the plant to these toxic effects.…”

Section: Introductionmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Role of phytohormones in aluminium rhizotoxicity

Kopittke

2016

Plant Cell & Environment

View full text Add to dashboard Cite

Elevated concentrations of soluble aluminium (Al) reduce root growth in acid soils, but much remains unknown regarding the toxicity of this Al as well as the mechanisms by which plants respond. This review examines changes in phytohormones in Al-stressed plants. Al often results in a rapid 'burst' of ethylene in root apical tissues within 15-30 min, with this regulating an increase in auxin. This production of ethylene and auxin seems to be a component of a plant-response to toxic Al, resulting in cell wall modification or regulation of organic acid release. There is also evidence of a role of auxin in the expression of Al toxicity itself, with Al decreasing basipetal transport of auxin, thereby potentially decreasing wall loosening as required for elongation. Increasingly, changes in abscisic acid in root apices also seem to be involved in plant-responses to toxic Al. Changes in cytokinins, gibberellins and jasmonates following exposure to Al are also examined, although little information is available. Finally, although not a phytohormone, concentrations of nitric oxide change rapidly in Al-exposed tissues. The information presented in this review will assist in focusing future research efforts in examining the importance of phytohormones in plant tissues exposed to toxic levels of Al.

show abstract

Role of ROS and auxin in plant response to metal-mediated stress

Cited by 70 publications

References 35 publications

Selenium and auxin mitigates arsenic stress in rice (Oryza sativa L.) by combining the role of stress indicators, modulators and genotoxicity assay

Selenium and auxin mitigates arsenic stress in rice (Oryza sativa L.) by combining the role of stress indicators, modulators and genotoxicity assay

Genome-wide analysis of wheat DNA-binding with one finger (Dof) transcription factor genes: evolutionary characteristics and diverse abiotic stress responses

Role of phytohormones in aluminium rhizotoxicity

Contact Info

Product

Resources

About