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The distribution of cyanobacteria across physical and chemical gradients in hot springs in northern Thailand.
FEMS Microbiol Ecol. 2005 May 01; 52(3):365-76.FM

Abstract

We mapped the distribution of mat forming cyanobacteria along the thermal gradient from 30 to 80 degrees C, in nine hot spring districts in northern Thailand. Nineteen genera and 36 species were identified by morphometric analysis. Water temperature was the predominant determinant of community structure in the springs. The diversity of cyanobacterial morphotypes fell as temperature increased. Water chemistry (pH, alkalinity and ammonia concentration) was a much weaker descriptor of the floral similarity between the springs. The morphotypes which dominated all springs were Synechococcus lividus and Synechococcus sp. (>40 and <80 degrees C) and Phormidium boryanum (>30 and <60 degrees C). The occurrence of Synechococcus lividus and Synechococcus sp. in every spring at 70 degrees C or more, implied there was no regional barrier to the distribution of these highly thermophilic taxa. Conversely, there were regional differences in the diversity of mat communities growing below 60 degrees C. The most depauperate flora were in the northernmost springs (SKP, TPN, PD, JS) and the springs further south around Chiang Mai had more diverse flora, suggestive of barriers to the dispersal of some taxa. More discriminating analyses using molecular tools will be required to determine whether the ubiquitous distribution Synechoccoccus morphotypes above 60 degrees C masks a genotypic diversity, comparable to the morphotype diversity observed below 60 degrees C.

Authors+Show Affiliations

Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand. s_udomluk@yahoo.comNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

16329921

Citation

Sompong, Udomluk, et al. "The Distribution of Cyanobacteria Across Physical and Chemical Gradients in Hot Springs in Northern Thailand." FEMS Microbiology Ecology, vol. 52, no. 3, 2005, pp. 365-76.
Sompong U, Hawkins PR, Besley C, et al. The distribution of cyanobacteria across physical and chemical gradients in hot springs in northern Thailand. FEMS Microbiol Ecol. 2005;52(3):365-76.
Sompong, U., Hawkins, P. R., Besley, C., & Peerapornpisal, Y. (2005). The distribution of cyanobacteria across physical and chemical gradients in hot springs in northern Thailand. FEMS Microbiology Ecology, 52(3), 365-76.
Sompong U, et al. The Distribution of Cyanobacteria Across Physical and Chemical Gradients in Hot Springs in Northern Thailand. FEMS Microbiol Ecol. 2005 May 1;52(3):365-76. PubMed PMID: 16329921.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The distribution of cyanobacteria across physical and chemical gradients in hot springs in northern Thailand. AU - Sompong,Udomluk, AU - Hawkins,Peter R, AU - Besley,Colin, AU - Peerapornpisal,Yuwadee, Y1 - 2005/01/20/ PY - 2004/06/26/received PY - 2004/10/17/revised PY - 2004/12/08/accepted PY - 2005/12/7/pubmed PY - 2006/1/6/medline PY - 2005/12/7/entrez SP - 365 EP - 76 JF - FEMS microbiology ecology JO - FEMS Microbiol Ecol VL - 52 IS - 3 N2 - We mapped the distribution of mat forming cyanobacteria along the thermal gradient from 30 to 80 degrees C, in nine hot spring districts in northern Thailand. Nineteen genera and 36 species were identified by morphometric analysis. Water temperature was the predominant determinant of community structure in the springs. The diversity of cyanobacterial morphotypes fell as temperature increased. Water chemistry (pH, alkalinity and ammonia concentration) was a much weaker descriptor of the floral similarity between the springs. The morphotypes which dominated all springs were Synechococcus lividus and Synechococcus sp. (>40 and <80 degrees C) and Phormidium boryanum (>30 and <60 degrees C). The occurrence of Synechococcus lividus and Synechococcus sp. in every spring at 70 degrees C or more, implied there was no regional barrier to the distribution of these highly thermophilic taxa. Conversely, there were regional differences in the diversity of mat communities growing below 60 degrees C. The most depauperate flora were in the northernmost springs (SKP, TPN, PD, JS) and the springs further south around Chiang Mai had more diverse flora, suggestive of barriers to the dispersal of some taxa. More discriminating analyses using molecular tools will be required to determine whether the ubiquitous distribution Synechoccoccus morphotypes above 60 degrees C masks a genotypic diversity, comparable to the morphotype diversity observed below 60 degrees C. SN - 0168-6496 UR - https://www.unboundmedicine.com/medline/citation/16329921/The_distribution_of_cyanobacteria_across_physical_and_chemical_gradients_in_hot_springs_in_northern_Thailand_ L2 - https://academic.oup.com/femsec/article-lookup/doi/10.1016/j.femsec.2004.12.007 DB - PRIME DP - Unbound Medicine ER -