数字农科院2.0

Changes In Bemisia Tabaci Feeding B.ehaviors Caused Directly And I ndirectly By Cucurbit Chlorotic Yellows Virus

文献类型： 外文期刊

作者： Lu, SH; Chen, MS; Li, JJ; Shi, Y; Gu, QS; Yan, FM

作者机构：

关键词： Bemisia tabaci; Cucurbit chlorotic yellows virus; Electrical penetration graph; Feeding behaviors; Semipersistent virus

期刊名称： VIROLOGY JOURNAL

ISSN：

年卷期： 2019 年 16 卷 1 期

页码：

收录情况： JCR（2021版）

摘要： Background Plant viruses can affect vector's behaviors in order to enhance viral transmission. Cucurbit chlorotic yellows virus (CCYV) (genus Crinivirus) is an emergent RNA plant virus and is transmitted specifically by biotypes B and Q of tobacco whitefly, Bemisia tabaci (Gennadius), in a semipersistent manner. Methods We used the electrical penetration graph (EPG) to investigate the effect of CCYV on the feeding behaviors of B. tabaci biotypes B and Q. Results CCYV could affect, both directly and indirectly, the feeding behaviors of B. tabaci to various degrees, depending on biotypes and sexes of the insect. CCYV showed stronger direct effects on biotype Q than on biotype B in terms of increased non-phloem probing and phloem salivation. CCYV increased non-phloem probing and phloem salivation more on females than on males of biotype Q, and increased phloem salivation more on females than on males of biotype B. CCYV had stronger indirect effects, via virus-infested plants, on biotype B than on biotype Q by enhancing phloem sap ingestion and feeding bouts. CCYV increased non-phloem probing and feeding bouts more on males than on females of biotype B, and decreased phloem sap ingestion more on males than on females on biotype Q indirectly. Conclusions The results clearly indicated that CCYV affects the feeding behaviors of B. tabaci, which may lead to increased ability of the B. tabaci for CCYV transmission.

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