Alvarez, A.E. (2007), Resistance mechanisms of Solanum species to Myzus persicae, Ph.D. thesis, Wageningen University, Wageningen, the Netherlands. The aphid Myzus persicae (Sulzer) constitute a threat to potato crops because of their efficiency to transmit viruses. Many wild Solanum species have been reported to have resistance to M. persicae. These species represent an important potential sou...

The aphids Macrosiphum euphorbiae (Thomas) and Myzus persicae (Sulzer) (Homoptera: Aphididae) are serious pests of potato ( Solanum tuberosum L.) (Solanaceae), notably in transmitting several plant viruses. Heterospecific interactions may occur between these two species as they are often seen at the same time on the same potato plant in the field. As aphid infestation is known to induce both lo...

C. Novotny, G. Huber, S. Karpuk, W. Nörtershäuser, University Mainz, Germany S. Reinhardt, G. Saathoff, D. Schwalm, A. Wolf, MPI for Nuclear Physics, Heidelberg, Germany G. Gwinner, Dept. of Physics and Astronomy, University of Manitoba, Winnipeg, Canada G. Ewald, University Tübingen, Germany F. Bosch, C. Geppert, H.-J. Kluge, T. Kühl, M. Steck, Th. Stöhlker, GSI Darmstadt, Germany T.W.Hänsch, ...

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 senesc...

Little is known about how drought stress influences plant secondary metabolite accumulation and how this affects plant defense against different aphids. We therefore cultivated Arabidopsis thaliana (L.) plants under well-watered, drought, and water-logged conditions. Two aphid species were selected for this study: the generalist Myzus persicae (Sulzer) and the crucifer specialist Brevicoryne br...

In 1990 and 1991, populations of the cabbage aphid, Brevicoryne brassicae, and the green peach aphid, Myzus persicae, were monitored on broccoli interplanted with three leguminous cover crops (the living mulches) and compared with broccoli without cover crop (clean cultivation). The cover crops used were white clover ( Trifolium repens L.), strawberry clover (Trifolium fragiferum L.) and a mixt...

BACKGROUND Biotic stress induced by various herbivores and pathogens invokes plant responses involving different defense mechanisms. However, we do not know whether different biotic stresses share a common response or which signaling pathways are involved in responses to different biotic stresses. We investigated the common and specific responses of Arabidopsis thaliana to three biotic stress a...

of natural populations (Manel et al. 2003, Segelbacher et al. 2010). Landscape genetics is a synthetic discipline that allows explicitly testing the infl uence of diff erent landscape features on gene fl ow in a spatially explicit framework (Manel et al. 2003, Segelbacher et al. 2010). Th is approach primarily aims at quantifying the resistance of landscape features to movement in order to dete...

Aphidius transcaspicus Telenga, a mealy plum aphid (Hyalopterus pruni Geoffroy) parasitoid from the Mediterranean, was recently introduced into Hawaii for control of invasive aphids. Under laboratory conditions the parasitoid successfully attacked several important aphid pests in Hawaii, including the melon aphid Aphis gossypii Glover, the banana aphid Pentalonia nigronervosa (Coquerel), the gr...