Chinese Bulletin of Botany ›› 2009, Vol. 44 ›› Issue (04): 451-456.DOI: 10.3969/j.issn.1674-3466.2009.04.006
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Juan Zhang, Rong Han
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Abstract: Seedlings of wheat (Triticum aestivum) were exposed to He-Ne laser irradiation with 5 mJ.s-1.mm-2 power density, enhanced UV-B radiation (10.08 kJ.m-2.d-1) and the combined treatment of He-Ne laser irradiation and enhanced UV-B radiation. From day 5, changes of Na+/K+-ATPase activity in mitochondria, chloroplasts and cellular solutes were measured to determine the effects of He-Ne laser irradiation and UV-B radiation on wheat. Na+/ K+-ATPase activity in mitochondria, chloroplasts and cellular solutes of wheat seedlings was reduced at day 6, increased at day 7, then gradually decreased with treatment days . At day 7, He-Ne laser irradiation resulted in increased activity of Na+/K+-ATPase in mitochondria, chloroplasts and cellular solutes of wheat seedlings . The activity of Na+/K+-ATPase was reduced under UV-B radiation. The Na+/K+-ATPase activity in various organelles by combined treatments was greater than the activity with UV-B radiation. All these results suggested that damage to wheat seedlings induced by enhanced UV-B radiation in terms of activity of Na+/K+-ATPase in various organelles can be repaired in part by He-Ne laser irradiation.
Juan Zhang;Rong Han. Effects of He-Ne Laser and UV-B Radiation on Na+/K+-ATPase Activity in Organelles of Wheat Seedlings[J]. Chinese Bulletin of Botany, 2009, 44(04): 451-456.
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URL: https://www.chinbullbotany.com/EN/10.3969/j.issn.1674-3466.2009.04.006
https://www.chinbullbotany.com/EN/Y2009/V44/I04/451