Growth-inhibition patterns and transfer-factor profiles in arsenic-stressed rice (Oryza sativa L.).

ABSTRACT: Arsenic (As) accumulation in rice owing to uptake from the soil is a critical human health issue. Here, we studied the chemical properties of As-treated soils, growth inhibition patterns of As-stressed rice plants, changes in the As content of soil and soil solutions, and the relationship between As accumulation and As transfer factor from the soil to the rice organs. Rice plants were cultivated in a greenhouse under four concentrations of As: 0 (control), 25, 50, and 75 mg kg^-1. A significant positive correlation was found between available P₂O₅ and exchangeable K and between As concentration and available P₂O₅ or exchangeable K. The As concentration for 50% shoot growth inhibition was 50 mg kg^-1. As levels in roots and sho

SUBMITTER: Jung HI 

PROVIDER: S-EPMC5691118 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature