Biogeographic Changes in Forest Soil Microbial Communities of Offshore Islands—A Case Study of Remote Islands in Taiwan

Forests

IshengJason Tsai¹  Chih-Yu Chiu¹  Ed-Haun Chang²  Shih-Hao Jien³  Guanglong Tian⁴ 

[1] Biodiversity Research Center, Academia Sinica, Nankang, Taipei 11529, Taiwan;Department of Nursing, MacKay Junior College of Medicine, Nursing and Management, Beitou, Taipei 11260, Taiwan;Department of Soil and Water Conservation, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan;Environmental Monitoring and Research Division, Monitoring and Research Department, Metropolitan Water Reclamation District of Greater Chicago, Cicero, IL 60804, USA;

关键词: soil enzyme;    microbial biomass;    microbial community;    phospholipid fatty acid;   

DOI  :  10.3390/f12010004

来源: DOAJ

【 摘 要 】

Biogeographic separation has been an important cause of faunal and floral distribution; however, little is known about the differences in soil microbial communities across islands. In this study, we determined the structure of soil microbial communities by analyzing phospholipid fatty acid (PLFA) profiles and comparing enzymatic activities as well as soil physio-chemical properties across five subtropical granite-derived and two tropical volcanic (andesite-derived) islands in Taiwan. Among these islands, soil organic matter, pH, urease, and PLFA biomass were higher in the tropical andesite-derived than subtropical granite-derived islands. Principal component analysis of PLFAs separated these islands into three groups. The activities of soil enzymes such as phosphatase, β-glucosidase, and β-glucosaminidase were positively correlated with soil organic matter and total nitrogen. Redundancy analysis of microbial communities and environmental factors showed that soil parent materials and the climatic difference are critical factors affecting soil organic matter and pH, and consequently the microbial community structure.

【 授权许可】

Unknown