Unraveling host - microbe interactions and ecosystem functions in moss-bacteria symbioses
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Unraveling host - microbe interactions and ecosystem functions in moss-bacteria symbioses. / Alvarenga, Danillo O.; Rousk, Kathrin.
In: Journal of Experimental Botany, Vol. 73, No. 13, 2022, p. 4473–4486.Research output: Contribution to journal › Review › Research › peer-review
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TY - JOUR
T1 - Unraveling host - microbe interactions and ecosystem functions in moss-bacteria symbioses
AU - Alvarenga, Danillo O.
AU - Rousk, Kathrin
N1 - CENPERM[2022]
PY - 2022
Y1 - 2022
N2 - Mosses are non-vascular plants usually found in moist and shaded areas, with great ecological importance in several ecosystems. This is especially true in northern latitudes, where mosses are responsible for up to 100% of primary production in some ecosystems. Mosses establish symbiotic associations with unique bacteria that play key roles in the carbon and nitrogen cycles. For instance, in boreal environments, more than 35% of the nitrogen fixed by diazotrophic symbionts in peatlands is transferred to mosses, directly affecting carbon fixation by the hosts, while moss-associated methanotrophic bacteria contribute 10-30% of moss carbon. Further, half of ecosystem N input may derive from moss-cyanobacteria associations in pristine ecosystems. Moss-bacteria interactions have consequences on a global scale since northern environments sequester 20% of all the carbon generated by forests in the world and stock at least 32% of global terrestrial carbon. Different moss hosts influence bacteria in distinct ways, which suggests that threats to mosses also threaten unique microbial communities with important ecological and biogeochemical consequences. Since their origin similar to 500 Ma, mosses have interacted with bacteria, making these associations ideal models for understanding the evolution of plant-microbe associations and their contribution to biogeochemical cycles.
AB - Mosses are non-vascular plants usually found in moist and shaded areas, with great ecological importance in several ecosystems. This is especially true in northern latitudes, where mosses are responsible for up to 100% of primary production in some ecosystems. Mosses establish symbiotic associations with unique bacteria that play key roles in the carbon and nitrogen cycles. For instance, in boreal environments, more than 35% of the nitrogen fixed by diazotrophic symbionts in peatlands is transferred to mosses, directly affecting carbon fixation by the hosts, while moss-associated methanotrophic bacteria contribute 10-30% of moss carbon. Further, half of ecosystem N input may derive from moss-cyanobacteria associations in pristine ecosystems. Moss-bacteria interactions have consequences on a global scale since northern environments sequester 20% of all the carbon generated by forests in the world and stock at least 32% of global terrestrial carbon. Different moss hosts influence bacteria in distinct ways, which suggests that threats to mosses also threaten unique microbial communities with important ecological and biogeochemical consequences. Since their origin similar to 500 Ma, mosses have interacted with bacteria, making these associations ideal models for understanding the evolution of plant-microbe associations and their contribution to biogeochemical cycles.
KW - Bryophyta
KW - carbon
KW - cyanobacteria
KW - global change
KW - microbiome
KW - mutualism
KW - nitrogen fixation
KW - plant-microbe interactions
KW - ASYMBIOTIC NITROGEN-FIXATION
KW - 16S RIBOSOMAL-RNA
KW - SPHAGNUM MOSSES
KW - BOREAL
KW - PLANT
KW - CYANOBACTERIA
KW - DIVERSITY
KW - BRYOPHYTE
KW - FUTURE
KW - COMMUNITIES
U2 - 10.1093/jxb/erac091
DO - 10.1093/jxb/erac091
M3 - Review
C2 - 35728619
VL - 73
SP - 4473
EP - 4486
JO - Journal of Experimental Botany
JF - Journal of Experimental Botany
SN - 0022-0957
IS - 13
ER -
ID: 312708590