Changes in antioxidant enzyme activities and isozyme profiles in leaves of male and female Populus cathayana infected with Melampsora larici-populina

Tree Physiology
Sheng ZhangChunyang Li

Abstract

Populus cathayana Rehd., a dioecious tree species, is widely distributed in the northern, central and southwestern regions of China. In poplars, Melampsora larici-populina Kleb. is mainly responsible for rust disease, which is considered to be the world's most important disease of poplars. Yet, little is known about sex-related responses to rust disease in poplars. The purpose of this work was to determine whether sexually different responses occur in the antioxidant system of poplars after infection by rust disease. Three-month-old male and female P. cathayana individuals were inoculated with M. larici-populina in a greenhouse. After 12 days of incubation, we investigated the changes in physiology, biochemistry, enzyme activities and isozyme profiles. It was discovered that (i) leaf rust disease inhibited photosynthesis, caused oxidative stress and cellular membrane damage and changed antioxidant enzyme activities and isozyme profiles in poplar leaves; (ii) male poplars suffered from lower infection levels and less negative effects of leaf rust disease than did females; (iii) males showed higher antioxidant activities and less H(2)O(2) accumulation than did females after being infected by leaf rust. Thus, our results indicate ...Continue Reading

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Citations

Jan 1, 2011·Journal of Pathogens·Stéphane HacquardSébastien Duplessis
Aug 18, 2012·Physiologia Plantarum·Ling LiChunyang Li
Nov 11, 2017·Frontiers in Plant Science·Nataliya V MelnikovaAlexey A Dmitriev
Jan 1, 2019·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Hanxiao LiangYuhong Su
Jun 22, 2010·Physiologia Plantarum·Fugui ChenChunyang Li
Oct 30, 2013·Physiologia Plantarum·Lianghua ChenJian Zhang
Jul 20, 2019·Journal of Environmental Health Science & Engineering·Suya ZhaoHanxiao Liang
Jul 15, 2015·Journal of Experimental Botany·Marta Juvany, Sergi Munné-Bosch
Dec 9, 2020·Molecular Plant-microbe Interactions : MPMI·Liling LiuXiao Xu
Apr 15, 2021·Molecular Plant-microbe Interactions : MPMI
Apr 12, 2021·Nitric Oxide : Biology and Chemistry·Ming-Yue WeiHai-Lei Zheng

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