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Root iron sequestration and antioxidant regulation govern iron-toxicity tolerance in indigenous rice genotypes from Northeast India.

Plant cell reports - 3 Aug 2026

Saha Oliva, Kaldate Rahul Chandrakant, Bora Sudipta Sankar, Sarmah Unmona, Dey Pradip Chandra, Nath Tankeswar, Barooah Madhumita

Abstract excerpt

KEY MESSAGE: Rice genotypes exhibit differential iron-toxicity tolerance, where tolerant types maintain iron homeostasis through plaque formation, sequestration and antioxidant defense, while sensitive genotypes accumulate excess iron, causing oxidative damage and cellular dysfunction. Iron (Fe) toxicity is a major constraint to rice production in waterlogged acidic soils, where excessive accumulation of ferrous...

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PMID: 42545425
DOI: 10.1007/s00299-026-03921-7

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