Effect of Environmental Factors on Rock-inhabiting Fungal Communities from Brazilian Soapstone Samples  

作　　者：Douglas Boniek Lorena Vivien Neves de Oliveira Noelly de Queiroz Ribeiro Christiane Abreu Oliveira Paiva Ubiraci Gomes de Paula Lana Antonio Femando Batista dos Santos Maria Aparecida de Resende Stoianoff 

机构地区：[1]Post-Graduate Program in Microbiology, Institute of Biological Sciences, Federal University of Minas Gerais, UFMG, BeloHorizonte 31270-901, Brazil [2]Embrapa Milho Sorgo, Brazilian Agricultural Research Corporation, Sete Lagoas 35701-970, Brazil [3]Faculty of Engineering and Architecture, Foundation of Education and Culture of Minas Gerais, Belo Horizonte 30310-190,Brazil [4]Department of Microbiology, Institute of Biological Sciences, Federal University of Minas Gerais, UFMG, Belo Horizonte31270-901, Brazil

出　　处：《Journal of Environmental Science and Engineering(B)》2017年第2期55-71,共17页环境科学与工程（B）

摘　　要：The present study aims to evaluate the environmental effect on fungal community composition associated with biodeterioration occurring in stones （soapstone） at two distinct locations in Minas Gerais State, Brazil： Congonhas city and Sanctuary of Cara^a. Four collections of fungal communities over one year were obtained from both research sites from the soapstone block surfaces exposed for over two decades. The molecular diversity profile of the fungal community at the two localities was obtained by DGGE （Denaturing Gradient Gel Electrophoresis）, and the genomes of the most representative population were sequenced. DGGE showed the formation of two clusters with filamentous fungal communities. Sequencing of the most representative bands revealed the presence of fungi associated with the biodeterioration of soapstone. In addition, many of the identified species were associated with photobionts that could generate lichens, indicating that environmental characteristics affect the occurrence of filamentous fungi, which leads to biodeterioration of stones. Authors＇ study focused on an environmental variation of an extreme habitat for fungi associated with soapstone in the state of Minas Gerais, Brazil and identified the presence of interesting rock-inhabiting fungal communities including species related to lichens, which can accelerate the deterioration of stones by the production of organic acids.

关 键 词：Fungal community BIODETERIORATION soapstone cultural heritage Minas Gerais state. 

分 类 号：X[环境科学与工程]