Oryza sativa

Exogenous nitric oxide enhances Cd tolerance in the rice root system by interacting with auxin

Oryza sativa L. is a worldwide food-crop frequently growing in cadmium (Cd) polluted soils. High Cd concentrations alter plant development and, in particular, the root-system, both by affecting auxin metabolism and by triggering reactive oxygen/nitrogen species (ROS/RNS), thereby affecting rice yield. In addition, Cd2+ easily enters in the rice root cells through passive transport, reaching the grains after xylem-tophloem transfer, thus becoming a threat to food security.

Cadmium and arsenic affect root development in Oryza sativa L. negatively interacting with auxin

Cadmium (Cd) and arsenic (As), non essential, but toxic, elements for animals and plants are frequently present in paddy fields. Oryza sativa L., a staple food for at least the half of world population, easily absorbs As and Cd by the root, and in this organ the pollutants evoke consistent damages, reducing/modifying the root system. Auxins are key hormones in regulating all developmental processes, including root organogenesis. Moreover, plants respond to environmental stresses, such as those caused by Cd and As, by changing levels and distribution of endogenous phytohormones.

Auxin-jasmonate crosstalk in Oryza sativa L. root system formation after cadmium and/or arsenic exposure

Soil pollutants may affect root growth through interactions among phytohormones like auxin and jasmonates.Rice is frequently grown in paddy fields contaminated by cadmium and arsenic, but the effects of these pollutants on jasmonates/auxin crosstalk during adventitious and lateral roots formation are widely unknown. Therefore, seedlings of Oryza sativa cv.

Role of nitric oxide in cadmium and arsenic toxicity in Oryza sativa L. root system

Cadmium (Cd) and Arsenic (As) pollution has become a serious factor limiting the growth and productivity of Oryza sativa L. and a risk for human health. Roots are the first organs affected by these pollutants, showing growth inhibition and altered cellular differentiation (Fattorini et al., 2017 doi: 10.1016/j.envexpbot.2017.10.005). Cd and As alter root architecture negatively interacting with hormone biosynthesis and

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