Entomologia Experimentalis et Applicata (2019) 167, 360-369

Edit Lantos, Edgar Schliephake, Reiner Krämer, Torsten Will and Thomas Nothnagel (2019)
Feeding behavior of Myzus persicae on asparagus species susceptible and resistant to Asparagus virus 1
Entomologia Experimentalis et Applicata 167 (4), 360-369
Abstract: Asparagus virus 1 (AV-1) infects Asparagus officinalis L. (Asparagaceae) in the field worldwide. However, various wild relatives of A. officinalis are resistant to AV-1. Here we study the behavior of the green peach aphid, Myzus persicae (Sulzer) (Hemiptera: Aphididae), on 19 AV-1-resistant wild relatives of A. officinalis. We focus on behavior that is associated with regular cell penetration, relevant for inoculation of AV-1, and sieve element penetration to check for vector resistance and its potential influence on AV-1 transmission. Parameters, relevant for the transmission of non-persistent viruses and host plant acceptance, were obtained by the electrical penetration graph technique. Furthermore, phylloclade architecture of A. officinalis and its wild relatives was examined to study its influence on aphid behavior. Behavior of M. persicae displays many cell penetrations and long ingestion periods on A. officinalis, compared to the generally shorter cell penetrations (reduced potential for virus transmission) and reduced or no ingestion (phloem-located aphid resistance) on wild relatives. Because effects on aphid behavior are not consistent throughout the group of the tested wild relatives of A. officinalis, with some wild relatives being susceptible to M. persicae, a common genetic background for AV-1 and aphid resistance appears to be unlikely. However, the reduced potential of virus transmission as well as aphid resistance shown by some wild relatives may be useful for future breeding programs.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Edgar Schliephake

Research topic(s) for pests/diseases/weeds:
transmission/dispersal of plant diseases
resistance/tolerance/defence of host

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Myzus persicae	Asparagus (Asparagus officinalis)	Germany
	Asparagus virus 1	Asparagus (Asparagus officinalis)	Germany