PJB-2021-276
Regulation of different intensities of UV-B irradiation on phenotypic development of alfalfa radicle
Limei Gao, Yajun Xi, Lijing Zhao and Yongfeng Li
Abstract
Roots are one of the important organs in a plant. Under different intensities of ultraviolet-B (UV-B) irradiation condition, plant roots have displayed different responsive behaviors at multiple levels of physiological, biochemical and cellular metabolisms. The higher intensities of UV-B have induced more damages to alfalfa roots than the lower intensities of UV-B irradiation, including biomass reduction, ROS toxicity, cell vitality decrease, and microstructure abnormality and physiochemical component alteration. The experimental data in our studies have shown that antioxidant/pro-oxidant balance play an important role in UV-B tolerability of plant root systems, which would be closely related to the UV-B protection action of plant proteins (FTIR wave number 1700-1600cm-1 and 1300-1200cm-1), cell membrane lipids and cell wall pectins (1745cm-1).
To Cite this article:
Gao, L., Y. Xi, L. Zhao and Y. Li. 2022. Regulation of different intensities of UV-B irradiation on phenotypic development of alfalfa radicle. Pak. J. Bot., 54(6): DOI: http://dx.doi.org/10.30848/PJB2022-6(18)
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