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Journal of Plant Genetic Resources. 2014, (05) Core

Salicylic Acid Increases Resistance to Fusarium oxysporum f. sp.phaseoli in Common Beans（ Phaseolus vulgaris L. ）Chinese Full Text

XUE Ren-feng;WU Jing;ZHU Zhen-dong;WANG Lan-fen;WANG Xiao-ming;GE Wei-de;WANG Shu-min;Crop Research Institute,Liaoning Academy of Agricultural Sciences;Institute of Crop Science,Chinese Academy of Agricultural Sciences /National Key Facility for Crop Gene Resources and Genetic Improvement;

Abstract: Common bean is one of major food legumes with high nutrition and large production area. Fusarium wilt has been a seriously soil-born disease and caused a great loss to the production of common beans. Salicylic acid（ SA） is considered to be one of the important signaling molecules involved in plant defence reactions and has been proved to be involved in plant hypersensitive reaction（ HR） and systemic acquired resistance（ SAR）. In this study,we treated the leaves of common bean cultivars BRB-130 by different plant hormones. The results indicated that the levels of endogenous SA in bean roots were increased when the leaves were treated by SA,the resistance to Fusarium oxysporum f. sp. phaseoli isolate FOP-DM01 was significantly improved,the enhancements of PAL and POX activity and H2O2 level were all significantly up-regulated in roots. SA-treatment induced HR and SAR in common beans. Therefore,SA had the ability to improve resistance to Fusarium wilt of common beans as an important chemical activator in the resistant signaling pathways. This study provided a new idea for the development of environmentfriendly fungicides.
Keywords：

common bean; fusarium wilt; salicylic acid; system acquired resistance;

  • DOI：

    10.13430/j.cnki.jpgr.2014.05.032

  • Series：

  • Subject：

  • Classification Code：

    S436.43

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