中国农业期刊集成服务平台

当前位置: 首页 > 文章 > Back to Basics: Are Begomoviruses Whitefly Pathogens? 农业科学学报 (英文) 2012,11 (2)

Position: Home > Articles > Back to Basics: Are Begomoviruses Whitefly Pathogens? Journal of Integrative Agriculture 2012,11 (2)

Back to Basics: Are Begomoviruses Whitefly Pathogens?

作者：

Czosnek, Henryk;Ghanim, Murad

单位：

Hebrew Univ Jerusalem, Inst Plant Sci & Genet Agr, Robert H Smith Fac Agr Food & Environm, IL-76100 Rehovot, Israel;Agr Res Org, Volcani Ctr, Dept Entomol, IL-50250 Bet Dagan, Israel

关键词：

begomovirus;Bemisia tabaci;vector;transmission

摘要：

Begomoviruses and whiteflies have interacted for geological times. An assumed long-lasting virus-vector intimate relationship of this magnitude implies that the partners have developed co-evolutionary mechanisms that insure on one hand the survival and the efficient transmission of the virus, and on the other hand the safeguard of the insect host from possible deleterious effects of the virus. Several studies have indicated that viruses belonging to the Tomato yellow leaf curl virus (TYLCVs) family from China, Israel and Italy are reminiscent of insect pathogens. TYLCVs like all begomoviruses are transmitted in a circulative manner by the whitefly Bemisia tabaci. The survival of the virus in the haemolymph of B. tabaci is ensured by a GroEL homologue produced by a whitefly secondary endosymbiont. Following acquisition and transfer to non-host plants, the virus may remain associated with the insect for its entire 4-5 wk-long adult life. During this period, the ability of the insects to inoculate plants steadily decreased, but did not disappear. The long-term presence of TYLCVs in B. tabaci was associated with a decrease in the insect longevity and fertility. Viral DNA was transmitted to progeny, but seldom infectivity. TYLCV transcripts were found associated with the insects, raising the possibility of replication and expression in the vector. TYLCVs may spread amidst whiteflies during copulation. Functional genomics tools such as microarrays, deep sequencing, quantitative PCR and gene silencing allow revisiting the proposition that TYLCVs have retained, or acquired, some characteristics of an insect pathogen.

相似文章

Homopteran Vector Biomarkers for Efficient Circulative Plant Virus Transmission are Conserved in Multiple Aphid Species and the Whitefly Bemisia tabaci [Cilia, Michelle, Bereman, Michael, Fish, Tara, MacCoss, Michael J., Gray, Stewart] 农业科学学报 (英文) 2012,11 (2)
Socio-Economic and Scientific Impact Created by Whitefly-Transmitted, Plant-Virus Disease Resistant Tomato Varieties in Southern India [Colvin, John, Nagaraju, N., Moreno-Leguizamon, Carlos, Govindappa, R. M., Reddy, T. B. Manjunatha, Padmaja, S. A., Joshi, Neena, Hanson, Peter M., Seal, Susan E., Muniyappa, V.] 农业科学学报 (英文) 2012,11 (2)
Socio-Economic and Scientific Impact Created by Whitefly-Transmitted, Plant-Virus Disease Resistant Tomato Varieties in Southern India [John Colvin, N. Nagaraju, Carlos Moreno-Leguizamon, RM Govindappa, TB Manjunatha Reddy, S. Padmaja, Nidhi Joshi, Peter Hanson, Susan Seal, V. Muniyapp] 农业科学学报(英文版) 2012,11 (2)

导出引用

计量

文章访问数: 9

HTML全文浏览量: 0

PDF下载量: 0

Back to Basics: Are Begomoviruses Whitefly Pathogens?

相似文章

所属期刊

农业科学学报 (英文)

推荐期刊

农业科学学报 (英文)