Molybdenum and phosphorus limitation of moss-associated nitrogen fixation in boreal ecosystems

• Published in: The New phytologist Vol. 214; no. 1; pp. 97 - 107
• Main Authors: Rousk, Kathrin, Degboe, Jefferson, Michelsen, Anders, Bradley, Robert, Bellenger, Jean‐Philippe
• Format: Journal Article
• Language: English
• Published: England New Phytologist Trust 01.04.2017; Wiley Subscription Services, Inc
• Subjects: Acetylene - metabolism; Acetylene reduction; biological nitrogen fixation; Biomass; Boreal forests; Bryophyta - physiology; Cyanobacteria; Cyanobacteria - drug effects; Cyanobacteria - metabolism; Ecological function; Ecosystem; Ecosystems; field experimentation; Field tests; Growing season; Hylocomium splendens; latitude; Molybdenum; molybdenum (Mo); Molybdenum - pharmacology; Mosses; mosses and liverworts; nitrogen; Nitrogen fixation; Nitrogen Fixation - drug effects; Nitrogen Isotopes; nitrogenase; nutrients; phosphorus; phosphorus (P); Phosphorus - pharmacology; Picea; Pleurozium schreberi; stable isotopes; subarctic tundra; Tracer techniques; Tundra; boreal forests; cyanobacteria; subarctic tundra; biological nitrogen fixation; molybdenum (Mo); Hylocomium splendens; Pleurozium schreberi; phosphorus (P)

Biological nitrogen fixation (BNF) performed by moss-associated cyanobacteria is one of the main sources of new nitrogen (N) input in pristine, high-latitude ecosystems. Yet, the nutrients that limit BNF remain elusive. Here, we tested whether this important ecosystem function is limited by the avai...