A 3D ecotoxi-topological profile: Using concentration-time-response surfaces to show peroxidase activity in Zea mays (L.) exposed to aluminium or arsenic in hydroponic conditions

Engel, Fernanda; Cotelle, Sylvie; Somensi, Cléder A.; Testolin, Renan C.; Corrêa, Rogério; Toumi, Héla; Férard, Jean-François; Radetski, Claudemir M.

doi:10.1016/j.chemosphere.2020.127647

Cited by 6 publications

(2 citation statements)

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“…Peroxidase activity has been reported to provide a protective mechanism towards ROS produced due to Al toxicity in plants (Ranjan et al, 2021). Changes in peroxidase activity in response to Al stress have been reported in rice, maize, soybean and lentil (Jan et al, 2001; Engel et al, 2021; Liu et al, 2021; Singh et al, 2021a). Enoyl‐(Acyl carrier) reductase is a crucial enzyme of the type II fatty acid synthesis system.…”

Section: Discussionmentioning

confidence: 96%

“…Changes in peroxidase activity in response to Al stress have been reported in rice, maize, soybean and lentil (Jan et al, 2001;Engel et al, 2021;Liu et al, 2021;Singh et al, 2021a et al, 2010). CDPKs may participate in the regulation of ion transporters involved in Al uptake, sequestration, or exclusion from plant cells (Shi et al, 2018).…”

Section: Contribution Of Function-specific Daps Under Al Stressmentioning

confidence: 96%

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Physiological and proteomic characterization revealed the response mechanisms underlying aluminium tolerance in lentil (Lens culinaris Medikus)

Singh,

Maithreyi,

Taunk

et al. 2024

Physiologia Plantarum

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Aluminium (Al) toxicity causes major plant distress, affecting root growth, nutrient uptake and, ultimately, agricultural productivity. Lentil, which is a cheap source of vegetarian protein, is recognized to be sensitive to Al toxicity. Therefore, it is important to dissect the physiological and molecular mechanisms of Al tolerance in lentil. To understand the physiological system and proteome composition underlying Al tolerance, two genotypes [L‐4602 (Al‐tolerant) and BM‐4 (Al‐sensitive)] were studied at the seedling stage. L‐4602 maintained a significantly higher root tolerance index and malate secretion with reduced Al accumulation than BM‐4. Also, label‐free proteomic analysis using ultra‐performance liquid chromatography‐tandem mass spectrometer exhibited significant regulation of Al‐responsive proteins associated with antioxidants, signal transduction, calcium homeostasis, and regulation of glycolysis in L‐4602 as compared to BM‐4. Functional annotation suggested that transporter proteins (transmembrane protein, adenosine triphosphate‐binding cassette transport‐related protein and multi drug resistance protein), antioxidants associated proteins (nicotinamide adenine dinucleotide dependent oxidoreductase, oxidoreductase molybdopterin binding protein & peroxidases), kinases (calmodulin‐domain kinase & protein kinase), and carbohydrate metabolism associated proteins (dihydrolipoamide acetyltransferase) were found to be abundant in tolerant genotype providing protection against Al toxicity. Overall, the root proteome uncovered in this study at seedling stage, along with the physiological parameters measured, allow a greater understanding of Al tolerance mechanism in lentil, thereby assisting in future crop improvement programmes.

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