%0 Journal Article
%A JIA Ling-Yun
%A JIANG Yu
%A LIU Yan
%A SHI Ru-Xia
%A WEI Xue-Ling
%A YANG Ying-Li*
%A ZHANG Hui
%T Effects of Exogenous Nitric Oxide on Seed Germination and Physiological Characteristics of Wheat Seedlings under Lead Stress
%D 2011
%R 10.7525/j.issn.1673-5102.2011.01.007
%J Bulletin of Botanical Research
%P 34-39
%V 31
%N 1
%X By the method of solution culture, wheat was used to investigate the effects of exogenous NO donor SNP on seed germination and seedlings physiological characteristics under Pb2+ stress. The results showed that Pb2+ treatment resulted in significant decreases in seed germination and seedling growth of wheat,and notable reduction in the levels of chlorophyll a, chlorophyll b and chlorophyll fluorescence, 25 μmol·L-1 SNP could alleviate the inhibition of Pb2+ on these indexes. No significant changes in the activities of CAT and POD were observed in comparison with the control under Pb2+ stress. However, the application of SNP induced increases of CAT activity and soluble protein content in wheat seedlings under Pb2+ treatment. Therefore, exogenous NO could alleviate the poison of Pb2+ and enhance the adaptation of wheat seedlings to Pb2+ stress.
%U https://bbr.nefu.edu.cn/EN/10.7525/j.issn.1673-5102.2011.01.007