期刊
CURRENT OPINION IN INSECT SCIENCE
卷 33, 期 -, 页码 77-83出版社
ELSEVIER
DOI: 10.1016/j.cois.2019.03.006
关键词
-
资金
- USDA Forest Service
Many insect species derive fitness benefits from associations with defensive microbial symbionts that confer protection against pathogens and parasites. These relationships are varied and diverse, but a number of studies highlight important trends. The effects of defensive symbionts can be context-dependent and influenced by variable selection imposed by the organism against which the symbiont protects. Additionally, genetic variation in both hosts and symbionts can greatly influence the outcome of these interactions. Here, we describe interactions between siricid woodwasps, their fungal symbionts and parasitic nematodes and show how defense by symbionts in this system is also context-dependent. The species or strain of the white rot fungus used as a symbiont by Sirex can influence parasitism of these hosts by Deladenus nematodes.
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