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dc.contributor.authorAlnajjar, Mohammad Ahmad
dc.contributor.authorRamette, Alban
dc.contributor.authorKühl, Michael
dc.contributor.authorHamza, Waleed
dc.contributor.authorKlatt, Judith M.
dc.contributor.authorPolerecky, Lubos
dc.date.accessioned2014-11-11T14:29:40Z
dc.date.available2014-11-11T14:29:40Z
dc.date.issued2014-08-06
dc.identifier.citationAl-Najjar MAA, Ramette A, Kühl M, Hamza W, Klatt JM, et al. (2014) Spatial patterns and links between microbial community composition and function in cyanobacterial mats. Frontiers in Microbiology 5. doi:10.3389/fmicb.2014.00406.
dc.identifier.issn1664302X
dc.identifier.pmid25147548
dc.identifier.doi10.3389/fmicb.2014.00406
dc.identifier.urihttp://hdl.handle.net/10754/334561
dc.description.abstractWe imaged reflectance and variable fluorescence in 25 cyanobacterial mats from four distant sites around the globe to assess, at different scales of resolution, spatial variabilities in the physiological parameters characterizing their photosynthetic capacity, including the absorptivity by chlorophyll a (Achl), maximum quantum yield of photosynthesis (Ymax), and light acclimation irradiance (Ik). Generally, these parameters significantly varied within individual mats on a sub-millimeter scale, with about 2-fold higher variability in the vertical than in the horizontal direction. The average vertical profiles of Ymax and Ik decreased with depth in the mat, while Achl exhibited a sub-surface maximum. The within-mat variability was comparable to, but often larger than, the between-sites variability, whereas the within-site variabilities (i.e., between samples from the same site) were generally lowest. When compared based on averaged values of their photosynthetic parameters, mats clustered according to their site of origin. Similar clustering was found when the community composition of the mats' cyanobacterial layers were compared by automated ribosomal intergenic spacer analysis (ARISA), indicating a significant link between the microbial community composition and function. Although this link is likely the result of community adaptation to the prevailing site-specific environmental conditions, our present data is insufficient to identify the main factors determining these patterns. Nevertheless, this study demonstrates that the spatial variability in the photosynthetic capacity and light acclimation of benthic phototrophic microbial communities is at least as large on a sub-millimeter scale as it is on a global scale, and suggests that this pattern of variability scaling is similar for the microbial community composition. © 2014 Al-Najjar, Ramette, Kühl, Hamza, Klatt and Polerecky.
dc.language.isoen
dc.publisherFrontiers Media SA
dc.rightsThis is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/
dc.titleSpatial patterns and links between microbial community composition and function in cyanobacterial mats
dc.typeArticle
dc.contributor.departmentMarine Microbial Ecology Research Group
dc.contributor.departmentRed Sea Research Center (RSRC)
dc.identifier.journalFrontiers in Microbiology
dc.identifier.pmcidPMC4123731
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionMicrosensor Group, Max-Planck Institute for Marine Microbiology, Bremen, Germany
dc.contributor.institutionMicrobial Habitat Group, Max-Planck Institute for Marine Microbiology, Bremen, Germany
dc.contributor.institutionMarine Biological Section, Department of Biology, University of Copenhagen, Helsingr, Denmark
dc.contributor.institutionPlant Functional Biology and Climate Change Cluster, University of Technology Sydney, Sydney, NSW, Australia
dc.contributor.institutionBiology Department, UAE University, Al-Ain, United Arab Emirates
dc.contributor.institutionDepartment of Earth Sciences - Geochemistry, Utrecht University, Utrecht, Netherlands
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)
kaust.personAlnajjar, Mohammad Ahmad
refterms.dateFOA2018-06-14T04:38:06Z


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This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Except where otherwise noted, this item's license is described as This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.