文献类型： 外文期刊
作者： Yin, Meng 1 ; Wang, Rui 1 ; Li, Shi 1 ; Luo, Mei 1 ; Wei, Wei 1 ; Wang, Maolin 1 ; Jiang, Jun 2 ; Lin, Yongjun 3 ; Zhao, Yun 1 ;
作者机构： 1.Sichuan Univ, Coll Life Sci, Key Lab Bioresource Ecoenvironm, Minist Educ, Chengdu, Peoples R China
2.Sichuan Acad Agr Sci, Inst Crop Res, Chengdu, Peoples R China
3.Huazhong Agr Univ, Natl Key Lab Crop Genet Improvement, Wuhan, Peoples R China
4.Huazhong Agr Univ, Natl Ctr Plant Gene Res, Wuhan, Peoples R China
关键词： Sclerotinia sclerotiorum; Brassica napus; PGIP; PG inhibitory activity; Arabidopsis thaliana
期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：6.627； 五年影响因子：7.255 ）
ISSN： 1664-462X
年卷期： 2022 年 13 卷
页码：
收录情况： SCI
摘要： Sclerotinia sclerotiorum, a worldwide distributed fungal pathogen, causes serious adverse effects on the yield and seed quality of rapeseed. Polygalacturonase-inhibiting proteins (PGIPs) can protect the cell wall from degradation by pathogen-secreted polygalacturonases (PGs). The present study found several PGIPs from Oryza sativa, especially OsPGIP6 and 3 have much higher inhibitory activities to SsPGs than BnPGIP2 from Brassica napus. Among them, OsPGIP1, 4, 6 can significantly elevate the resistance of transgenic Arabidopsis to S. sclerotiorum. Subsequently, OsPGIP1, 3, 4, 6 were subjected to SSR resistance assay in transgenic rapeseed plants. Among which, OsPGIP6 showed the highest resistance to S. sclerotiorum. At 48 h after detached leaves inoculation, the lesion area of OE-OsPGIP6 rapeseed plants is only 17.93% of the non-transgenic line, and 22.17, 21.32, 52.78, 56.47%, compared to OE-BnPGIP2, OE-OsPGIP1, OE-OsPGIP2, OE-OsPGIP4, respectively. Furthermore, the lesion area of OE-OsPGIP6 reached 10.11% compared to WT at 72 hpi. Also, the lesion length on the stem of OE-OsPGIP6 plants was reduced by 36.83% compared to WT. These results reveal that OsPGIP family, especially OsPGIP6, has a great potential in rapeseed S. sclerotiorum-resistance breeding.
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