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Bidirectional C and...
Bidirectional C and N transfer and a potential role for sulfur in an epiphytic diazotrophic mutualism
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Stuart, Rhona K. (författare)
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- Pederson, Eric R. A. (författare)
- Stockholms universitet,Institutionen för ekologi, miljö och botanik
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Weyman, Philip D. (författare)
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Weber, Peter K. (författare)
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- Rassmussen, Ulla (författare)
- Stockholms universitet,Institutionen för ekologi, miljö och botanik
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Dupont, Christopher L. (författare)
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(creator_code:org_t)
- 2020-08-19
- 2020
- Engelska.
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Ingår i: The ISME Journal. - : Springer Science and Business Media LLC. - 1751-7362 .- 1751-7370. ; 14:12, s. 3068-3078
- Relaterad länk:
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https://doi.org/10.1...
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https://www.nature.c...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- In nitrogen-limited boreal forests, associations between feathermoss and diazotrophic cyanobacteria control nitrogen inputs and thus carbon cycling, but little is known about the molecular regulators required for initiation and maintenance of these associations. Specifically, a benefit to the cyanobacteria is not known, challenging whether the association is a nutritional mutualism. Targeted mutagenesis of the cyanobacterial alkane sulfonate monooxygenase results in an inability to colonize feathermosses by the cyanobacteriumNostoc punctiforme, suggesting a role for organic sulfur in communication or nutrition. Isotope probing paired with high-resolution imaging mass spectrometry (NanoSIMS) demonstrated bidirectional elemental transfer between partners, with carbon and sulfur both being transferred to the cyanobacteria, and nitrogen transferred to the moss. These results support the hypothesis that moss and cyanobacteria enter a mutualistic exosymbiosis with substantial bidirectional material exchange of carbon and nitrogen and potential signaling through sulfur compounds.
Ämnesord
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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