The new effector AbSCP1 of foliar nematode (Aphelenchoides besseyi) is required for parasitism rice

文献类型： 外文期刊

第一作者： Huang Xin

作者： Huang Xin;Chi Yuan-kai;Birhan, Addisie Abate;Zhao Wei;Qi Ren-de;Huang Xin;Peng De-liang;Birhan, Addisie Abate

作者机构：

关键词： Aphelenchoides besseyi; serine carboxypeptidases; effector; nematode; pathogenicity

期刊名称：JOURNAL OF INTEGRATIVE AGRICULTURE （ 影响因子：4.384； 五年影响因子：4.021 ）

ISSN： 2095-3119

年卷期： 2022 年 21 卷 4 期

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收录情况： SCI

摘要： Plant parasitic nematodes secrete effector proteins to parasitize hosts successfully. Of these proteins, serine carboxypeptidases have critical roles in pathogenicity. This study investigated the role of new effector AbSCP1 in Aphelenchoides besseyi pathogenicity. In situ hybridization and qRT-PCR analyses indicated that AbSCP1 was exclusively expressed in the esophageal glands and upregulated in juveniles. Subcellular localization assays indicated that the protein was expressed in the nucleus. The ability to hydrolyze C-terminal amino acid residues was proven for AbSCP1. Moreover, RNAi significantly reduced the expression of AbSCP1 and RNAi-treated nematodes' reproductive potential. Pathogenicity assays on rice showed that RNAi-treated nematodes were less pathogenic than the untreated control groups. These results suggest the important role of AbSCP1 in the A. besseyi infection process.

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