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Community phylogenetic diversity of cyanobacterial mats associated with geothermal springs along a tropical intertidal gradient.
Extremophiles. 2006 Apr; 10(2):159-63.E

Abstract

The 16S rRNA gene-defined bacterial diversity of tropical intertidal geothermal vents subject to varying degrees of seawater inundation was investigated. Shannon-Weaver diversity estimates of clone library-derived sequences revealed that the hottest pools located above the mean high-water mark that did not experience seawater inundation were most diverse, followed by those that were permanently submerged below the mean low-water mark. Pools located in the intertidal were the least biodiverse, and this is attributed to the fluctuating conditions caused by periodic seawater inundation rather than physicochemical conditions per se. Phylogenetic analysis revealed that a ubiquitous Oscillatoria-like phylotype accounted for 83% of clones. Synechococcus-like phylotypes were also encountered at each location, whilst others belonging to the Chroococcales, Oscillatoriales, and other non-phototrophic bacteria occurred only at specific locations along the gradient. All cyanobacterial phylotypes displayed highest phylogenetic affinity to terrestrial thermophilic counterparts rather than marine taxa.

Authors+Show Affiliations

Department of Ecology Biodiversity, The University of Hong Kong, Hong Kong, China.No 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

16143880

Citation

Jing, Hongmei, et al. "Community Phylogenetic Diversity of Cyanobacterial Mats Associated With Geothermal Springs Along a Tropical Intertidal Gradient." Extremophiles : Life Under Extreme Conditions, vol. 10, no. 2, 2006, pp. 159-63.
Jing H, Lacap DC, Lau CY, et al. Community phylogenetic diversity of cyanobacterial mats associated with geothermal springs along a tropical intertidal gradient. Extremophiles. 2006;10(2):159-63.
Jing, H., Lacap, D. C., Lau, C. Y., & Pointing, S. B. (2006). Community phylogenetic diversity of cyanobacterial mats associated with geothermal springs along a tropical intertidal gradient. Extremophiles : Life Under Extreme Conditions, 10(2), 159-63.
Jing H, et al. Community Phylogenetic Diversity of Cyanobacterial Mats Associated With Geothermal Springs Along a Tropical Intertidal Gradient. Extremophiles. 2006;10(2):159-63. PubMed PMID: 16143880.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Community phylogenetic diversity of cyanobacterial mats associated with geothermal springs along a tropical intertidal gradient. AU - Jing,Hongmei, AU - Lacap,Donnabella C, AU - Lau,Chui Yim, AU - Pointing,Stephen B, Y1 - 2005/09/06/ PY - 2005/05/27/received PY - 2005/07/28/accepted PY - 2005/9/7/pubmed PY - 2006/8/30/medline PY - 2005/9/7/entrez SP - 159 EP - 63 JF - Extremophiles : life under extreme conditions JO - Extremophiles VL - 10 IS - 2 N2 - The 16S rRNA gene-defined bacterial diversity of tropical intertidal geothermal vents subject to varying degrees of seawater inundation was investigated. Shannon-Weaver diversity estimates of clone library-derived sequences revealed that the hottest pools located above the mean high-water mark that did not experience seawater inundation were most diverse, followed by those that were permanently submerged below the mean low-water mark. Pools located in the intertidal were the least biodiverse, and this is attributed to the fluctuating conditions caused by periodic seawater inundation rather than physicochemical conditions per se. Phylogenetic analysis revealed that a ubiquitous Oscillatoria-like phylotype accounted for 83% of clones. Synechococcus-like phylotypes were also encountered at each location, whilst others belonging to the Chroococcales, Oscillatoriales, and other non-phototrophic bacteria occurred only at specific locations along the gradient. All cyanobacterial phylotypes displayed highest phylogenetic affinity to terrestrial thermophilic counterparts rather than marine taxa. SN - 1431-0651 UR - https://www.unboundmedicine.com/medline/citation/16143880/Community_phylogenetic_diversity_of_cyanobacterial_mats_associated_with_geothermal_springs_along_a_tropical_intertidal_gradient_ L2 - https://dx.doi.org/10.1007/s00792-005-0477-9 DB - PRIME DP - Unbound Medicine ER -