Study on the community structure and function of symbiotic bacteria from different growth and developmental stages of Hypsizygus marmoreus.

Abstract:

BACKGROUND:The symbiotic bacteria associated with edible fungi are valuable microbial resources worthy of in-depth exploration. It is important to analyze the community structure and succession of symbiotic bacteria in mushrooms. This can assist in the isolation of growth-promoting strains that have an essential relationship with the cultivation cycle as well as the agronomic traits and yields of fruiting bodies. RESULTS:In all of the samples from cultivation bags of Hypsizygus marmoreus, 34 bacterial phyla were detected. Firmicutes was the most abundant bacterial phylum (78.85%). The genus Serratia showed an exponential increase in abundance in samples collected from the cultivation bags in the mature period, reaching a peak abundance of 55.74% and the dominant symbiotic flora. The most predominant strain was Serratia odorifera HZSO-1, and its abundance increased with the amount of hyphae of H. marmoreus. Serratia odorifera HZSO-1 could reside in the hyphae of H. marmoreus, promote growth and development, shorten the fruiting cycle by 3-4 days, and further increase the fruiting body yield by 12%. CONCLUSIONS:This study is a pioneering demonstration of the community structure of the symbiotic microbiota and bacteria-mushroom interaction in the growth and development of edible fungi. This work lays a theoretical foundation to improve the industrial production of mushrooms with symbiotic bacteria as assisting agents.

journal_name

BMC Microbiol

journal_title

BMC microbiology

authors

Sun S,Li F,Xu X,Liu Y,Kong X,Chen J,Liu T,Chen L

doi

10.1186/s12866-020-01998-y

subject

Has Abstract

pub_date

2020-10-14 00:00:00

pages

311

issue

1

issn

1471-2180

pii

10.1186/s12866-020-01998-y

journal_volume

20

pub_type

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