Surplus Carbon Drives Allocation and Plant-Soil Interactions
Language English Country Great Britain, England Media print-electronic
Document type Journal Article, Review
PubMed
32928565
DOI
10.1016/j.tree.2020.08.007
PII: S0169-5347(20)30222-6
Knihovny.cz E-resources
- Keywords
- carbon allocation, mycorrhizal fungi, nonstructural carbohydrates, nutrient limitation, root exudates, secondary metabolites,
- MeSH
- Nitrogen MeSH
- Ecosystem MeSH
- Plant Roots MeSH
- Carbon Dioxide MeSH
- Soil * MeSH
- Carbon * MeSH
- Publication type
- Journal Article MeSH
- Review MeSH
- Names of Substances
- Nitrogen MeSH
- Carbon Dioxide MeSH
- Soil * MeSH
- Carbon * MeSH
Plant growth is usually constrained by the availability of nutrients, water, or temperature, rather than photosynthetic carbon (C) fixation. Under these conditions leaf growth is curtailed more than C fixation, and the surplus photosynthates are exported from the leaf. In plants limited by nitrogen (N) or phosphorus (P), photosynthates are converted into sugars and secondary metabolites. Some surplus C is translocated to roots and released as root exudates or transferred to root-associated microorganisms. Surplus C is also produced under low moisture availability, low temperature, and high atmospheric CO2 concentrations, with similar below-ground effects. Many interactions among above- and below-ground ecosystem components can be parsimoniously explained by the production, distribution, and release of surplus C under conditions that limit plant growth.
Department of Forest Sciences University of Helsinki P O Box 27 FI 00014 Helsinki Finland
Institute of Botany University of Basel Schönbeinstr 6 CH 4056 Basel Switzerland
Institute of Ecology and Earth Sciences University of Tartu Vanemuise 46 51014 Tartu Estonia
Manaaki Whenua Landcare Research Lincoln 7640 New Zealand
School of Biological Sciences The University of Western Australia Crawley WA 6009 Australia
References provided by Crossref.org
