Variation of volatile terpenes in the edible fungi mycelia Flammulina velutipes and communications in fungus-mite interactions. (January 2018)

• Record Type: Journal Article
• Authors: Li, Hui-Ping; Yang, Wen-Jian; Qu, Shao-Xuan; Pei, Fei; Luo, Xin; Mariga, Alfred Mugambi; Ma, Lin
• Is Part Of: Food research international. Volume 103(2018)
• Page Start: 150
• Page End: 155
• Publication Date: 2018-01
• Subjects: Storage mite -- GC–MS/MS -- Chemical defense -- Edible fungi -- Sesquiterpenoid; Food -- Analysis -- Periodicals; Food industry and trade -- Periodicals; Food industry and trade -- Canada -- Periodicals; Food Technology -- Periodicals; Food -- Periodicals; Food-Processing Industry -- Periodicals; Aliments -- Industrie et commerce -- Périodiques; Aliments -- Industrie et commerce -- Canada -- Périodiques; Aliments -- Recherche -- Périodiques; Food industry and trade; Canada; Periodicals; Electronic journals; 664.005
• DOI: 10.1016/j.foodres.2017.10.031
• Languages: English
• ISSNs: 0963-9969

Abstract

Abstract: Many mites rely on fungi for nutrients, and fungi benefit from them with regard to spore dispersal, or nutrient resources. The interactions among mites and fungi are still not clear in most cases. This study analyzed volatile natural products from the liquid and solid cultures of the edible fungi, Flammulina velutipes (Fr.) Sing, and the solid mycelia induced by the storage mite, Tyrophagus putrescentiae Schrank, using HS-SPME-GC–MS/MS. Five new monoterpenes and 30 new sesquiterpenes were isolated from the two cultures of F. velutipes and a newly monoterpene and 14 newly sesquiterpenes found in the solid mycelia induced by the storage mite. Sesquiterpenes were abundant in the mycelial stage of F. velutipe . The mite was attracted by some volatiles from host fungi, dihydrocarveol, cedrol, β-caryophyllene, α-terpilene, β-pinene and benzaldehyde, analyzed by four-arm olfactometer. Some terpenes induced by T. putrescentiae, such as caryophyllene oxide, bicyclogermacrene, and (−)-spathulenol, would have potential biological function. These results suggest that some volatile sesquiterpenes play an important role in enabling the mite to recognize host fungi. Graphical abstract: Highlights: New terpenes found in the mycelia of Flammulina velutipes Volatile compounds of the edible fungi induced by mites were analyzed. Terpenes play an important role in fungus-mite communications.