Journal
PLANT CELL AND ENVIRONMENT
Volume 37, Issue 8, Pages 1776-1789Publisher
WILEY
DOI: 10.1111/pce.12320
Keywords
Arctic; BVOC; desert; CO2; DMS; drought; hypersaline; isoprenoid; mangrove; temperature
Categories
Funding
- Danish Council for Independent Research Natural Sciences
- Villum Foundation
- Maj and Tor Nessling Foundation
- Danish National Research Foundation for supporting the activities within the Center for Permafrost [CENPERM DNRF100]
- UK Natural Environment Research Council [NE/J009555/1]
- European Commission
- European Science Foundation - EUROCORES project 'Molecular and metabolic bases of isoprenoid emissions' (EuroVOL-MOMEVIP)
- [NE/H009485/1]
- NERC [NE/J009555/1, NE/H009485/1] Funding Source: UKRI
- Natural Environment Research Council [NE/H009485/1, NE/J009555/1] Funding Source: researchfish
- Villum Fonden [00007189] Funding Source: researchfish
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This review summarizes the current understanding on plant and algal volatile organic compound (VOC) production and emission in extreme environments, where temperature, water availability, salinity or other environmental factors pose stress on vegetation. Here, the extreme environments include terrestrial systems, such as arctic tundra, deserts, CO2 springs and wetlands, and marine systems such as sea ice, tidal rock pools and hypersaline environments, with mangroves and salt marshes at the land-sea interface. The emission potentials at fixed temperature and light level or actual emission rates for phototrophs in extreme environments are frequently higher than for organisms from less stressful environments. For example, plants from the arctic tundra appear to have higher emission potentials for isoprenoids than temperate species, and hypersaline marine habitats contribute to global dimethyl sulphide (DMS) emissions in significant amounts. DMS emissions are more widespread than previously considered, for example, in salt marshes and some desert plants. The reason for widespread VOC, especially isoprenoid, emissions from different extreme environments deserves further attention, as these compounds may have important roles in stress resistance and adaptation to extremes. Climate warming is likely to significantly increase VOC emissions from extreme environments both by direct effects on VOC production and volatility, and indirectly by altering the composition of the vegetation.
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