Phytohormones-mediated strategies for mitigation of heavy metals toxicity in plants focused on sustainable production

Zhang, Yumang; Yang, Chunyuan; Liu, Shuxia; Xie, Zhonglei; Chang, Hongyan; Wu, Tong

doi:10.1007/s00299-024-03189-9

Plant Cell Rep

2024

DOI: 10.1007/s00299-024-03189-9

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Phytohormones-mediated strategies for mitigation of heavy metals toxicity in plants focused on sustainable production

Yumang Zhang,

Chunyuan Yang,

Shuxia Liu

et al.

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2024

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Cited by 3 publications

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Isolation and identification of Rhizospheric and Endophytic Bacteria from Cucumber plants irrigated with wastewater: Exploring their roles in plant growth promotion and disease suppression

Shreshtha,

Raj,

Pal

et al. 2024

Current Research in Microbial Sciences

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Isolation and identification of Rhizospheric and Endophytic Bacteria from Cucumber plants irrigated with wastewater: Exploring their roles in plant growth promotion and disease suppression

Shreshtha,

Raj,

Pal

et al. 2024

Current Research in Microbial Sciences

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Roots of Lupinus angustifolius L. and enzyme activities in soil contaminated by toxic elements

Novák,

Zemanová,

Černý

et al. 2024

Plant Soil Environ.

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Ectopic Expression of AetPGL from Aegilops tauschii Enhances Cadmium Tolerance and Accumulation Capacity in Arabidopsis thaliana

Yu,

Hu,

Zhou

et al. 2024

Plants

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Cadmium (Cd) is a toxic heavy metal that accumulates in plants, negatively affecting their physiological processes, growth, and development, and poses a threat to human health through the food chain. 6-phosphogluconolactonase (PGL) is a key enzyme in the Oxidative Pentose Phosphate Pathway(OPPP) in plant cells, essential for cellular metabolism. The OPPP pathway provides energy and raw materials for organisms and is involved in antioxidant reactions, lipid metabolism, and DNA synthesis. This study describes the Cd responsive gene AetPGL from Aegilops tauschii. Overexpression of AetPGL under Cd stress increased main root length and germination rate in Arabidopsis. Transgenic lines showed higher antioxidant enzyme activities and lower malondialdehyde (MDA) content compared to the wild type. The transgenic Arabidopsis accumulated more Cd in the aboveground part but not in the underground part. Expression levels of AtHMA3, AtNRAMP5, and AtZIP1 in the roots of transgenic plants increased under Cd stress, suggesting AetPGL may enhance Cd transport from root to shoot. Transcriptome analysis revealed enrichment of differentially expressed genes (DEGs) in the plant hormone signal transduction pathway in AetPGL-overexpressing plants. Brassinosteroids (BR), Gibbenellin acid (GA), and Jasmonic acid (JA) contents significantly increased after Cd treatment. These results indicate that AetPGL may enhance Arabidopsis’ tolerance to Cd by modulating plant hormone content. In conclusion, AetPGL plays a critical role in improving cadmium tolerance and accumulation and mitigating oxidative stress by regulating plant hormones, providing insights into the molecular mechanisms of plant Cd tolerance.

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Phytohormones-mediated strategies for mitigation of heavy metals toxicity in plants focused on sustainable production

Cited by 3 publications

References 166 publications

Isolation and identification of Rhizospheric and Endophytic Bacteria from Cucumber plants irrigated with wastewater: Exploring their roles in plant growth promotion and disease suppression

Isolation and identification of Rhizospheric and Endophytic Bacteria from Cucumber plants irrigated with wastewater: Exploring their roles in plant growth promotion and disease suppression

Roots of Lupinus angustifolius L. and enzyme activities in soil contaminated by toxic elements

Ectopic Expression of AetPGL from Aegilops tauschii Enhances Cadmium Tolerance and Accumulation Capacity in Arabidopsis thaliana

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