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Life in the dark :
Life in the dark : far-red absorbing cyanobacteria extend photic zones deep into terrestrial caves
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- Behrendt, Lars (author)
- Uppsala universitet,Miljötoxikologi,Science for Life Laboratory, SciLifeLab
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- Trampe, Erik L. (author)
- Univ Copenhagen, Marine Biol Lab, Strandpromenaden 5, DK-3000 Helsingor, Denmark.
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- Nord, Nadia B. (author)
- Univ Copenhagen, Marine Biol Lab, Strandpromenaden 5, DK-3000 Helsingor, Denmark.;Univ Aarhus, Dept Environm Sci, Frederiksborgvej 399, DK-4000 Roskilde, Denmark.
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- Nguyen, Jen (author)
- ETHZ, Dept Civil Environm & Geomat Engn, Inst Environm Engn, Stefano Franscini Pl 5, CH-8093 Zurich, Switzerland.;MIT, Microbiol Grad Program, 77 Massachusetts Ave, Cambridge, MA 02139 USA.
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- Kuhl, Michael (author)
- Univ Copenhagen, Marine Biol Lab, Strandpromenaden 5, DK-3000 Helsingor, Denmark.;Univ Technol Sydney, Climate Change Cluster, Ultimo, NSW 2007, Australia.
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- Lonco, Danijela (author)
- Univ Akron, Dept Biol, Akron, OH 44325 USA.
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- Nyarko, Alex (author)
- Univ Akron, Dept Polymer Sci, Akron, OH 44325 USA.
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- Dhinojwala, Ali (author)
- Univ Akron, Dept Polymer Sci, Akron, OH 44325 USA.
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- Hershey, Olivia S. (author)
- Univ Akron, Dept Biol, Akron, OH 44325 USA.
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- Barton, Hazel (author)
- Univ Akron, Dept Biol, Akron, OH 44325 USA.
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(creator_code:org_t)
- 2019-09-09
- 2020
- English.
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In: Environmental Microbiology. - : Wiley. - 1462-2912 .- 1462-2920. ; 22:3, s. 952-963
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Chlorophyll (Chl) f and d are the most recently discovered chlorophylls, enabling cyanobacteria to harvest near-infrared radiation (NIR) at 700-780 nm for oxygenic photosynthesis. Little is known about the occurrence of these pigments in terrestrial habitats. Here, we provide first details on spectral photon irradiance within the photic zones of four terrestrial cave systems in concert with a detailed investigation of photopigmentation, light reflectance and microbial community composition. We frequently found Chl f and d along the photic zones of caves characterized by low light enriched in NIR and inhabited by cyanobacteria producing NIR-absorbing pigments. Surprisingly, deeper parts of caves still contained NIR, an effect likely attributable to the reflectance of specific wavelengths by the surface materials of cave walls. We argue that the stratification of microbial communities across the photic zones of cave entrances resembles the light-driven species distributions in forests and aquatic environments.
Subject headings
- NATURVETENSKAP -- Biologi -- Mikrobiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Microbiology (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Behrendt, Lars
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Trampe, Erik L.
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Nord, Nadia B.
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Nguyen, Jen
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Kuhl, Michael
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Lonco, Danijela
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Nyarko, Alex
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Dhinojwala, Ali
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Hershey, Olivia ...
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Barton, Hazel
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Microbiology
- Articles in the publication
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Environmental Mi ...
- By the university
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Uppsala University