Aarón Giovanni Munguía-Rodríguez1,2, José López-Bucio1, Gerardo Rangel Sánchez1,2, León Francisco Ruiz-Herrera1, Yazmín Carreón-Abud2, Miguel Martínez-Trujillo2,*
Phyton-International Journal of Experimental Botany, Vol.89, No.1, pp. 35-43, 2020, DOI:10.32604/phyton.2020.07835
Abstract The post-embryonic growth of the Arabidopsis thaliana root system can
be modified by different types of stress, such as sublethal concentrations of metals,
which may induce the production of reactive oxygen species (ROS). In this study,
the effects of different concentrations of potassium chromate (K₂CrO4) on the
distribution and relative quantity of hydrogen peroxide (H2O2) were determined in
primary and adventitious roots in A. thaliana HyPer line seedlings. This line has a
biosensor that specifically reports H2O2 levels within tissues as fluorescence.
Primary root growth was inhibited at 100 μM Cr (VI); in contrast, adventitious root
formation was induced over… More >
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