Dataset Information

Plant-mycorrhizal-decomposer interactions under climate change: the role of shifting plant carbon allocation

ABSTRACT: Our work focuses on an economically and societally important plant-EMF system that dominates coniferous forests in U.S. and abroad; plants in the Pinaceae and their EMF symbionts in the genus Suillus. Pinaceae forests cover ~30% of U.S. land area and store approximately 57.8 billion tons of C. Pines have also been introduced to over 5 million Ha of land in the Southern Hemisphere, where populations of non-native Pinaceae species are escaping from original plantations and co- invading with their EMF symbionts, with unknown consequences to ecosystem biogeochemistry. At the DOE-funded Duke Free-Air CO2 Enrichment (FACE) experiment in North Carolina, U.S., Pinus taeda trees accumulated biomass quickly under elevated CO2, using unknown mechanisms for mining soil N to support rapid growth. Our analysis of the Suillus-Pinus system will generate molecular data on these responses, providing insight into the prospects for sustained plant productivity – and ecosystem C storage – under elevated CO2. By linking our molecular data with development of an ecosystem model, our proposed work directly meets DOE BER’s mission of translating genomics data into digestible units that can improve our predicative understanding of terrestrial biogeochemistry. This research was performed under the Facilities Integrating Collaborations for User Science (FICUS) program (proposal:https://doi.org/10.46936/fics.proj.2020.51536/60000208) and used resources at the DOE Joint Genome Institute (https://ror.org/04xm1d337) and the Environmental Molecular Sciences Laboratory (https://ror.org/04rc0xn13), which are DOE Office of Science User Facilities operated under Contract Nos. DE-AC02-05CH11231 (JGI) and DE-AC05-76RL01830 (EMSL).

INSTRUMENT(S): Q Exactive

ORGANISM(S): Pinus Taeda/suillus

SUBMITTER: Jennifer Bhatnagar