Cadmium interferes with maintenance of auxin homeostasis in Arabidopsis seedlings

Hu, Yan; Zhou, Guoying; Na, Xiao Fan; Yang, Lijing; Nan, W.; Liu, Xu; Zhang, Yong Qiang; Li, Jiao Long; Bi, Yu Rong

doi:10.1016/j.jplph.2013.02.008

Cited by 178 publications

(93 citation statements)

References 47 publications

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“…The detoxification mechanisms recorded an increase in metallothioneins (MTs), thiols and glutathione-s-transferase (GST) activity in Se treated plants and its supplementation at lower concentration might be favorable to improve growth and defense ability against As toxicity in crops such as mungbean [7]. Involvement of auxin under excess metal has been reported for the better growth and development of plants [8]. Although significant amount of work has been carried out on the individual application of As, Se and auxin, their co-application has not been studied in rice plants, which is the most affected crop plant under As stress.…”

Section: Introductionmentioning

confidence: 99%

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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

165

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Section: Introductionmentioning

confidence: 99%

“…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

165

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“…The application of auxin transporter inhibitor NPA resulted in apparent reversal of lateral root phenotype in Plant roots may develop different phenotypes and anatomical features when exposed to metal stress. As a general tendency, higher plants commonly develop lateral roots in an attempt to block the radial transport of heavy metals [5,19]. Previously, we demonstrated that non-transgenic wheat roots also developed lateral roots under Cd stress reinforcing the conserved mechanism of sensitivity in plants but not in TaABCC13:RNAi seedlings [6].…”

Section: Effect Of Auxin Transport Inhibitor On Lateral Root Developmentmentioning

confidence: 61%

“…Studies with Arabidopsis, maize and wheat plants has emphasized on the phytohormones based regulation of lateral root formation. In particular, the plant response to environmental stresses like heavy metal and deprivation of nutrients are important factors [4][5][6]. At the anatomical level, contrasting development stages of lateral root origin was observed for Arabidopsis and cereal crops like maize and wheat [4].…”

Section: Introductionmentioning

confidence: 99%

Interconnection between Wheat ABCC13 Transporter and Auxin-Related Genes during Lateral Root Development

Bhati¹,

Kumar²,

Pandey³

2017

Preprint

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TaABCC13 is member of wheat ABCC subclass of transporters. The RNAi mediated silencing of this transporter in wheat results in lowering of seed phytic acid level and other developmental defects. In addition to that, wheat ABCC13 was involved in cadmium detoxification as evident by the complementation assays in yeast. The appearance of early lateral roots in these transgenic seedlings speculated the possibility for studying the role of localized auxin-mediated effects. In the current study, firstly, the expression of auxin related genes was studied in the transgenic roots.Enhanced expression of genes pertaining to either auxin biosynthesis or its transport was observed in transgenic wheat seedling roots suggesting the direct effect of the hormone. Further, the early emergence of lateral roots in transgenic wheat seedlings was affected due to the presence of auxintransport inhibitor suggesting the direct effect of hormones in root development. In conclusion, herein we provide the novel evidence for the auxin mediated regulation of lateral root emergence in TaABCC13:RNAi seedlings.

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“…Cd treatment was shown to reduce the IAA content signifi cantly accompanied by increase in the activity of the IAA oxidase and alter the expression of several putative auxin biosynthetic and catabolic genes (Hu et al 2013 ).…”

Section: Auxin and Oxidative Stressmentioning

confidence: 99%

Emerging Roles of Auxin in Abiotic Stress Responses

Sharma

Borah

et al. 2015

Elucidation of Abiotic Stress Signaling in Plants

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Auxin is among the key growth regulators that play diverse roles in virtually all aspects of plant growth and development. Intensive investigations during the past two decades have helped in elucidation of auxin perception and signal transduction mechanisms operative in plants. In addition to its primary role in regulating plant development, several studies in recent years have provided unfl inching evidence for the involvement of auxin in abiotic stress responses. Functional genomics studies and genome-wide expression analysis have revealed altered expression of auxin-responsive genes, such as Aux/IAA , GH3 , SAURs , and ARFs , under abiotic stress conditions . Variations in endogenous levels of auxin at global and local levels under various abiotic stress conditions have been associated with phenotypic changes and provided intriguing evidences regarding its role in response to environmental changes. Modulation of reactive oxygen species (ROS) levels in response to exogenous auxin as well as to drought, salinity, and ABA have indicated towards a complex relationship network between auxin, ROS, and abiotic stresses in plants. The advent of recent functional genomics technologies has led to identifi cation of several candidate genes that may modulate crosstalk between auxin and abiotic stresses. This chapter discusses auxin homeostasis, signal transduction mechanisms, and how these processes are modulated under abiotic stresses, thus emphasizing on the emerging roles of auxin as a key integrator of abiotic stress pathways and plant development.

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Cadmium interferes with maintenance of auxin homeostasis in Arabidopsis seedlings

Cited by 178 publications

References 47 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

Interconnection between Wheat ABCC13 Transporter and Auxin-Related Genes during Lateral Root Development

Emerging Roles of Auxin in Abiotic Stress Responses

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