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Curr Biol

Title:		Egg-Surface Bacteria Are Indirectly Associated with Oviposition Aversion in Bactrocera dorsalis
Author(s):		Li H; Ren L; Xie M; Gao Y; He M; Hassan B; Lu Y; Cheng D;
Address:		"Department of Entomology, College of Plant Protection, South China Agricultural University, Guangzhou 510640, China. Department of Entomology, College of Plant Protection, South China Agricultural University, Guangzhou 510640, China. Electronic address: luyongyue@scau.edu.cn. Department of Entomology, College of Plant Protection, South China Agricultural University, Guangzhou 510640, China. Electronic address: chengdaifeng@scau.edu.cn"
Journal Title:		Curr Biol
Year:		2020
Volume:		20200917
Issue:		22
Page Number:		4432 - 4440
DOI:		10.1016/j.cub.2020.08.080
ISSN/ISBN:		1879-0445 (Electronic) 0960-9822 (Linking)
Abstract:		"Finding a suitable oviposition site is a challenging task for a gravid female fly, because the hatched maggots have limited mobility, making it difficult to find an alternative host. The oriental fruit fly, Bactrocera dorsalis, oviposits on many types of fruits. Maggots hatching in a fruit that is already occupied by conspecific worms will face food competition. Here, we showed that maggot-occupied fruits deter B. dorsalis oviposition and that this deterrence is based on the increased beta-caryophyllene concentration in fruits. Using a combination of bacterial identification, volatile content quantification, and behavioral analyses, we demonstrated that the egg-surface bacteria of B. dorsalis, including Providencia sp. and Klebsiella sp., are responsible for this increase in the beta-caryophyllene contents of host fruits. Our research shows a type of tritrophic interaction between micro-organisms, insects, and insect hosts, which will provide considerable insight into the evolution of insect behavioral responses to volatile compounds"
Keywords:		"Animals Behavior, Animal/*physiology Female Fruit/metabolism/microbiology/*parasitology Host Specificity Host-Parasite Interactions/physiology Klebsiella/isolation & purification Larva/physiology *Oviposition Ovum/*microbiology Polycyclic Sesquiterpenes/m;"
Notes:		"MedlineLi, Huijing Ren, Lu Xie, Mingxue Gao, Yang He, Muyang Hassan, Babar Lu, Yongyue Cheng, Daifeng eng Research Support, Non-U.S. Gov't England 2020/09/19 Curr Biol. 2020 Nov 16; 30(22):4432-4440.e4. doi: 10.1016/j.cub.2020.08.080. Epub 2020 Sep 17"