The Raf-like MAPKKKs STY8, STY17, and STY46 negatively regulate Botrytis cinerea resistance by limiting MKK7 protein accumulation in Arabidopsis
The Raf-like MAPKKKs STY8, STY17, and STY46 negatively regulate Botrytis cinerea resistance by limiting MKK7 protein accumulation in Arabidopsis
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DOI：
10.1111/tpj.16578
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Bing liu
中科院分区：
文献类型：
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作者：
Lijuan Chen;Jiahui Xiao;You li;Yuxiao Song;Jun Liu;Qi Zhou;Ting Sun;Hong-Bin Wang;Bing liu
Plant diseases, which seriously damage crop production, are in most cases caused by fungal pathogens. In.this study, we found that the Raf-like MAPKKKs STY8 (SERINE/THREONINE/TYROSINE KINASE 8), STY17,.and STY46 negatively regulate resistance to the fungal pathogen Botrytis cinerea through jasmonate.response in Arabidopsis. Moreover, STY8/STY17/STY46 homologs negatively contribute to chitin signaling..We further identified MKK7 as the MAPKK component interacting with STY8/STY17/STY46 homologs..MKK7 positively contributes to resistance to B. cinerea and chitin signaling. Furthermore, we found that.STY8/STY17/STY46 homologs negatively affect the accumulation of MKK7, in accordance with the opposite.roles of MKK7 and STY8/STY17/STY46 homologs in defense against B. cinerea. These results provide new.insights into the mechanisms precisely regulating plant immunity via Raf-like MAPKKKs.
