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  • Changes in soil microbial communities at Jinsha earthen site are associated with earthen site deterioration.

    Author(s) : Li JingZhang XiaoYueXiao LinLiu KeLi YueZhang ZiWeiChen QiangAo XiaoLinLiao DeCongGu YunFuMa MengGenYu XiuMeiXiang QuanJuChen JiZhang XiaoPingYang TaoPenttinen, P.Zhao Ke

    Author Affiliation : Department of Microbiology, College of Resources, Sichuan Agricultural University, Yaan, 625000, China.

    Author Email : petri.penttinen@helsinki.fizhaoke82@126.com

    Journal article : BMC Microbiology 2020 Vol.20 No.147 pp.(5 June 2020) ref.many

    Abstract : Background: Earthen sites are immobile cultural relics and an important part of cultural heritage with historical, artistic and scientific values. The deteriorationdeteriorationSubject Category: Miscellaneous
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    of features in earthen sites result in permanent loss of cultural information, causing immeasurable damage to the study of history and culture. Most research on the deterioration of earthen sites has concentrated on physicochemical factors, and information on microbial communities in earthen sites and their relationship with the earthen site deterioration is scarce. We used high-throughput sequencing to analyze bacterial and fungal communities in soils from earthen walls with different degree of deterioration at Jinsha earthen site to characterize the microbial communities and their correlation with environmental factorsenvironmental factorsSubject Category: Properties
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    , and to compare microbial community structures and the relative abundances of individual taxa associated with different degree of deterioration for identifying possible marker taxa. Results: The relative abundances of ProteobacteriaproteobacteriaSubject Category: Organism Names
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    and FirmicutesfirmicutesSubject Category: Organism Names
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    were higher and that of ActinobacteriaactinobacteriaSubject Category: Organism Names
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    lower with higher degree of deterioration. At the genus level, the relative abundances of RubrobacterrubrobacterSubject Category: Organism Names
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    were highest in all sample groups except in the most deteriorated samples where that of BacteroidesbacteroidesSubject Category: Organism Names
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    was highest. The relative abundance of the yeast genus Candida was highest in the severely deteriorated sample group. The bacterial phylum Bacteroidetes and genus Bacteroides, and fungal class SaccharomycetessaccharomycetesSubject Category: Organism Names
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    that includes Candida sp. were specific for the most deteriorated samples. For both bacteriabacteriaSubject Category: Organism Names
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    and fungifungiSubject Category: Organism Names
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    , the differences in community composition were associated with differences in EC, moisture, pHphSubject Category: Properties
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    , and the concentrations of NH4 +, K+, Mg2+, Ca2+ and SO42-. Conclusion: The microbial communities in soil with different degree of deterioration were distinctly different, and deterioration was accompanied with bigger changes in the bacterial than in the fungal community. In addition, the deteriorated soil contained higher concentrations of soluble salts. Potentially, the accumulation of Bacteroides and Candida plays an important role in the deterioration of earthen features. Further work is needed to conclude whether controlling the growth of the bacteria and fungi with high relative abundances in the deteriorated samples can be applied to alleviate deterioration.

    ISSN : 1471-2180

    DOI : 10.1186/s12866-020-01836-1

    Record Number : 20203352220

    Publisher : BioMed Central Ltd

    Location of publication : London

    Country of publication : UK

    Language of text : English

    Indexing terms for this abstract:

    Organism descriptor(s) : FirmicutesfirmicutesSubject Category: Organism Names
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    , ActinobacteriaactinobacteriaSubject Category: Organism Names
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    , BacteriabacteriaSubject Category: Organism Names
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    , BacteroidesbacteroidesSubject Category: Organism Names
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    , ProteobacteriaproteobacteriaSubject Category: Organism Names
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    , RubrobacterrubrobacterSubject Category: Organism Names
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    , SaccharomycetessaccharomycetesSubject Category: Organism Names
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    Descriptor(s) : deteriorationdeteriorationSubject Category: Miscellaneous
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    , environmental factorsenvironmental factorsSubject Category: Properties
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    , microbial floramicrobial floraSubject Category: Organism Groups
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    , microorganismsmicroorganismsSubject Category: Organism Groups
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    , soil biologysoil biologySubject Category: Disciplines, Occupations and Industries
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    , soil florasoil floraSubject Category: Organism Groups
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    , physicochemical propertiesphysicochemical propertiesSubject Category: Properties
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    , pHphSubject Category: Properties
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    , ammoniumammoniumSubject Category: Chemicals and Chemical Groups
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    , potassiumpotassiumSubject Category: Chemicals and Chemical Groups
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    , magnesiummagnesiumSubject Category: Chemicals and Chemical Groups
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    , calciumcalciumSubject Category: Chemicals and Chemical Groups
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    , sulfatesulfateSubject Category: Chemicals and Chemical Groups
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    Identifier(s) : Bacteroidetes, microbial communities, bacterium, microflora, micro-organisms, People's Republic of China, hydrogen ion concentration, potential of hydrogen

    Geographical Location(s) : SichuansichuanSubject Category: Geographic Entities
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    , ChinachinaSubject Category: Geographic Entities
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    Broader term(s) : BacteriabacteriaSubject Category: Organism Names
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    , prokaryotesprokaryotesSubject Category: Organism Names
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    , BacteroidaceaebacteroidaceaeSubject Category: Organism Names
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    , BacteroidalesbacteroidalesSubject Category: Organism Names
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    , Bacteroidetes (class)bacteroidetes (class)Subject Category: Organism Names
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    , Bacteroidetes (phylum)bacteroidetes (phylum)Subject Category: Organism Names
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    , South Western Chinasouth western chinaSubject Category: Geographic Entities
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    , ChinachinaSubject Category: Geographic Entities
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    , APEC countriesapec countriesSubject Category: Institutions and Organisations
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    , Developing Countriesdeveloping countriesSubject Category: Miscellaneous
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    , East Asiaeast asiaSubject Category: Geographic Entities
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    , AsiaasiaSubject Category: Geographic Entities
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    , RubrobacteraceaerubrobacteraceaeSubject Category: Organism Names
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    , RubrobacterineaerubrobacterineaeSubject Category: Organism Names
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    , RubrobacteralesrubrobacteralesSubject Category: Organism Names
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    , RubrobacteridaerubrobacteridaeSubject Category: Organism Names
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    , ActinobacteriaactinobacteriaSubject Category: Organism Names
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    , SaccharomycotinasaccharomycotinaSubject Category: Organism Names
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    , AscomycotaascomycotaSubject Category: Organism Names
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    , fungifungiSubject Category: Organism Names
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    , eukaryoteseukaryotesSubject Category: Organism Names
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