Infection of potato plants with potato leafroll virus changes attraction and feeding behaviour of Myzus persicae
Infection of potato plants with potato leafroll virus changes attraction and feeding behaviour of Myzus persicae
复制标题
DOI：
10.1111/j.1570-7458.2007.00607.x
复制
发表时间：
2007-11-01
影响因子：
1.9
通讯作者：
Tjallingii, W. F.
中科院分区：
文献类型：
--
作者：
Alvarez, A. E.;Garzo, E.;Tjallingii, W. F.
马铃薯卷叶病毒（PLRV; Polerovirus属，黄病毒科）是依赖蚜虫传播的持续传播的循环病毒。PLRV的主要媒介是蚜虫Myzus persicae（Sulzer）（同翅目：蚜虫科）。Solanum tuberosum L.马铃薯茄科植物卡达尔对M.桃蚜：幼叶似乎是抗性的，而衰老的叶是敏感的。在这项研究中，我们调查是否PLRV感染的马铃薯植株影响蚜虫的行为。我们发现M。桃蚜区分从PLRV感染和未感染的马铃薯植物散发的顶空挥发物的能力取决于叶的年龄。在幼嫩的顶叶中，感染PLRV和未感染的叶片之间的蚜虫吸引力没有差异。事实上，几乎没有任何蚜虫被吸引。相反，在成熟叶片中，病毒感染叶片的顶空挥发物吸引蚜虫。我们还研究了PLRV感染对M的探测和进食行为（植物渗透）的影响。用电穿透图技术（DC系统）对桃（Persicae）进行了研究。在PLRV感染和未感染的植物中观察到植物渗透之间的几个差异，但仅在感染的植物显示PLRV感染的视觉症状之后。研究了植物感染PLRV后对M.病毒的传播媒介，以及这些影响对病毒传播的影响进行了深入讨论。
Potato leafroll virus (PLRV; genus Polerovirus, family Luteoviridae) is a persistently transmitted circulative virus that depends on aphids for spreading. The primary vector of PLRV is the aphid Myzus persicae (Sulzer) (Homoptera: Aphididae). Solanum tuberosum L. potato cv. Kardal (Solanaceae) has a certain degree of resistance to M. persicae: young leaves seem to be resistant, whereas senescent leaves are susceptible. In this study, we investigated whether PLRV-infection of potato plants affected aphid behaviour. We found that M. persicae's ability to differentiate headspace volatiles emitted from PLRV-infected and non-infected potato plants depends on the age of the leaf. In young apical leaves, no difference in aphid attraction was found between PLRV-infected and non-infected leaves. In fact, hardly any aphids were attracted. On the contrary, in mature leaves, headspace volatiles from virus infected leaves attracted the aphids. We also studied the effect of PLRV-infection on probing and feeding behaviour (plant penetration) of M. persicae using the electrical penetration graph technique (DC system). Several differences were observed between plant penetration in PLRV-infected and non-infected plants, but only after infected plants showed visual symptoms of PLRV infection. The effects of PLRV-infection in plants on the behaviour of M. persicae, the vector of the virus, and the implications of these effects on the transmission of the virus are thoroughly discussed.