Spatial patterns and links between microbial community composition and function in cyanobacterial mats
AuthorsAlnajjar, Mohammad Ahmad
Klatt, Judith M.
Permanent link to this recordhttp://hdl.handle.net/10754/334561
MetadataShow full item record
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.
CitationAl-Najjar MAA, Ramette A, KÃ¼hl 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.
PublisherFrontiers Media SA
JournalFrontiers in Microbiology
PubMed Central IDPMC4123731
The following license files are associated with this item:
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.
- Correlation of bio-optical properties with photosynthetic pigment and microorganism distribution in microbial mats from Hamelin Pool, Australia.
- Authors: Fisher A, Wangpraseurt D, Larkum AWD, Johnson M, Kühl M, Chen M, Wong HL, Burns BP
- Issue date: 2019 Jan 1
- Diversity, distribution and hydrocarbon biodegradation capabilities of microbial communities in oil-contaminated cyanobacterial mats from a constructed wetland.
- Authors: Abed RM, Al-Kharusi S, Prigent S, Headley T
- Issue date: 2014
- Benthic cyanobacterial mats in the high arctic: multi-layer structure and fluorescence responses to osmotic stress.
- Authors: Lionard M, Péquin B, Lovejoy C, Vincent WF
- Issue date: 2012
- The epsomitic phototrophic microbial mat of Hot Lake, Washington: community structural responses to seasonal cycling.
- Authors: Lindemann SR, Moran JJ, Stegen JC, Renslow RS, Hutchison JR, Cole JK, Dohnalkova AC, Tremblay J, Singh K, Malfatti SA, Chen F, Tringe SG, Beyenal H, Fredrickson JK
- Issue date: 2013
- Optical properties of benthic photosynthetic communities: fiber-optic studies of cyanobacterial mats.
- Authors: Jorgensen BB, Des Marais DJ
- Issue date: 1988