NDLI: Transfer of fixed-N from N$_{2}$-fixing cyanobacteria associated with the moss Sphagnum riparium results in enhanced growth of the moss

Content Provider	Springer Nature Link
Author	Berg, Andreas Danielsson, Åsa Svensson, Bo H.
Copyright Year	2012
Abstract	Despite the general assumption that nitrogen fixed by associated cyanobacteria will be readily utilised for growth by the Sphagnum, no empirical evidence is available in the literature. Therefore the effects of nitrogen transfer from cyanobacteria associated with S. riparium were investigated.Cultivation of S. riparium with and without cyanobacteria was performed under laboratory conditions for 57 days.We show that nitrogen fixation by cyanobacteria associated with Sphagnum mosses, influences moss growth by transfer of fixed nitrogen to the moss. More than 35 % of the nitrogen fixed by cyanobacteria was transferred to the newly formed moss biomass and resulted in an increase in the growth of Sphagnum biomass compared to the controls. The variation in the increase of nitrogen content explained 76 % of the biomass increment.Hence, nitrogen fixation will have immediate effect on the carbon fixation by Sphagnum. This shows that factors regulating nitrogen fixation will have a direct effect on the role of Sphagnum dominated ecosystems with respect to carbon cycling.
Starting Page	271
Ending Page	278
Page Count	8
File Format	PDF
ISSN	0032079X
Journal	Plant and Soil
Volume Number	362
Issue Number	1-2
e-ISSN	15735036
Language	English
Publisher	Springer Netherlands
Publisher Date	2012-05-22
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Sphagnum riparium Cyanobacteria Nitrogen fixation Peatlands Nitrogen transfer Plant Sciences Soil Science & Conservation Plant Physiology Ecology
Content Type	Text
Resource Type	Article
Subject	Soil Science Plant Science

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