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    祝賀廣西農科院老師高分文章錄??!

    更新時間:2023-05-25   點擊次數:408次


    文獻標題Bacterial Leaf Streak 1 encoding a mitogen-activated protein kinase confers the rice
    resistance to bacterial leaf streak
    文獻作者Zengfeng Ma、Gang Qin、Yuexiong Zhang、Chi Liu、Minyi Wei、Zhenlu Cen、Yong Yan、Tongping Luo、Zhenjing Li、Haifu Liang、Dahui Huang、Guofu Deng
    期刊名稱PLANT JOURNAL影響因子7.091
    使用產品植物絲裂原活化蛋白激酶OsMAPK6(mitogen-activated protein kinase)活性檢測ELISA 試劑盒貨號

    2Pl-KMLJ92048p-DZ




    002.png

    SUMMARY

    Bacterial leaf streak (BLS) is a major bacterial disease of rice. Utilization of host genetic resistance has becomeone of the most important strategies for controlling BLS. However, only a few resistance genes have been char-acterized. Previously, a recessive BLS resistance genebls1was roughly mapped on chromosome 6. Here, we fur-ther delineatedbls1to a 21 kb region spanning four genes. Genetic analysis confirmed that the gene encoding amitogen-activated protein kinase (OsMAPK6) is the target of the allelic genesBLS1andbls1. Overexpression ofBLS1weakened resistance to the specificXanthomonas oryzaepv.oryzicola(Xoc) strain JZ-8, while low expres-sion ofbls1increased resistance. However, both overexpression ofBLS1and low expression ofbls1couldincrease no-race-specific broad-spectrum resistance. These results indicate thatBLS1andbls1negatively regulaterace-specific resistance toXocstrain JZ-8 but positively and negatively control broad-spectrum resistance, respec-tively. Subcellular localization demonstrated thatOsMAPK6was localized in the nucleus.RGA4,whichisknownto mediate resistance toXoc, is the potential target ofOsMAPK6. Overexpression ofBLS1and low expression ofbls1showed increase in salicylic acid and induced expression of defense-related genes, simultaneously increasingbroad-spectrum resistance. Moreover, low expression ofbls1showed increase an in jasmonic acid and abscisicacid, in company with an increase in resistance toXocstrain JZ-8. Collectively, our study provides new insightsinto the understanding of BLS resistance and facilitates the development of rice host-resistant c*rs.

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