Differential indirect effects of two plant viruses on an invasive and an indigenous whitefly vector: implications for competitive displacement
Differential indirect effects of two plant viruses on an invasive and an indigenous whitefly vector: implications for competitive displacement
复制标题
两种植物病毒对入侵性和本土粉虱媒介的不同间接影响：竞争性取代的影响
DOI：
10.1111/j.1744-7348.2009.00366.x
复制
发表时间：
2009-01-01
影响因子：
2.6
通讯作者：
Liu, S. -S.
中科院分区：
文献类型：
--
作者：
Liu, J.;Zhao, H.;Liu, S. -S.
媒介-菜豆花叶病毒-植物相互作用在烟粉虱物种复合体Bemisia tabaci的一些成员的广泛入侵中的作用知之甚少。侵袭性B生物型为B。烟粉虱于20世纪90年代末进入中国，到2005-2006年已成为该国许多地区烟粉虱的主要或唯一生物型。同时，菜豆花叶病毒病在包括番茄在内的许多作物上广泛流行，其中中国番茄黄化曲叶病毒（Tomato yellow leaf curl virus，TYLCCNV）和番茄黄化曲叶病毒（Tomato yellow leaf curl virus，TYLCV）是引起番茄黄化曲叶病毒病的两种主要病原。在这里，我们进行了实验室实验，以比较的性能的入侵B和土著ZHJ 1粉虱生物型对未感染，TYLCCNV感染和TYLCV感染的番茄品种植物。合作903是我国广泛栽培的一个品种。任何一种病毒感染番茄植株对B生物型的发育、存活和繁殖力没有影响或只有轻微的影响。与此相反，ZHJ 1生物型的存活率和繁殖力显着降低病毒感染的植物相比，那些未感染的植物。未感染和TYLCCNV感染的植物上的B生物型的种群以相似的速率增加，而TYLCCNV感染的植物上的ZHJ 1生物型的种群增加受到不利影响。B和ZHJ 1生物型对番茄病毒感染的这种不对称反应可能为B生物型在其入侵和取代本地生物型方面提供优势。
The role of vector-begomovirus-plant interactions in the widespread invasion by some members of the whitefly species complex Bemisia tabaci is poorly understood. The invasive B biotype of B. tabaci entered China in the late 1990s and had become the predominant or only biotype of the whitefly in many regions of the country by 2005-2006. Meanwhile epidemics of begomoviruses have been observed in many crops including tomato for which Tomato yellow leaf curl China virus (TYLCCNV) and Tomato yellow leaf curl virus (TYLCV) have been identified as two major disease-causing agents. Here, we conducted laboratory experiments to compare the performance of the invasive B and indigenous ZHJ1 whitefly biotypes on uninfected, TYLCCNV-infected and TYLCV-infected plants of tomato cv. Hezuo903, a cultivar that has been widely cultivated in many regions of China. The infection of tomato plants by either of the viruses had no or only marginal effects on the development, survival and fecundity of the B biotype. In contrast, survival and fecundity of the ZHJ1 biotype were significantly reduced on virus-infected plants compared to those on uninfected plants. Populations of the B biotype on uninfected and TYLCCNV-infected plants increased at similar rates, whereas population increase of the ZHJ1 biotype on TYLCCNV-infected plants was affected adversely. These asymmetric responses to virus infection of tomato plants between the B and ZHJ1 biotypes are likely to offer advantages to the B biotype in its invasion and displacement of the indigenous biotype.