A salivary secretory protein from Riptortus pedestris facilitates pest infestation and soybean staygreen syndrome

Author:

Shan Shiqi1,Huang Yue1,Guo Chunyun1,Hu Biao1,Zhang Hehong1,Li Yanjun1,Chen Jianping1,Wei Zhongyan1ORCID,Sun Zongtao1ORCID

Affiliation:

1. State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro‐products, Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province Institute of Plant Virology, Ningbo University Ningbo China

Abstract

AbstractThe bean bug (Riptortus pedestris), one of the most important pests of soybean, causes staygreen syndrome, delaying plant maturation and affecting pod development, resulting in severe crop yield loss. However, little is known about the underlying mechanism of this pest. In this study, we found that a salivary secretory protein, Rp614, induced cell death in nonhost Nicotiana benthamiana leaves. NbSGT1 and NbNDR1 are involved in Rp614‐induced cell death. Tissue specificity analysis showed that Rp614 is mainly present in salivary glands and is highly induced during pest feeding. RNA interference experiments showed that staygreen syndrome caused by R. pedestris was significantly attenuated when Rp614 was silenced. Together, our results indicate that Rp614 plays an essential role in R. pedestris infestation and provide a promising RNA interference target for pest control.

Publisher

Wiley

Subject

Plant Science,Soil Science,Agronomy and Crop Science,Molecular Biology

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