Plant Cell EnvironJClub
Ozone Susceptibility of Tropical Tree Species.
Plant, Cell & Environment · · Journal Article · Open access
Farha, Brown + more
Abstract ↗AI summary
The abstract is read at the publisher; the summary is JClub's.
In 11 tropical tree species exposed to a ground-level ozone gradient in open-top chambers, relative growth reductions were best explained by differences in plant mass per unit leaf area (PMA).
- Why it matters: Tropical forests drive about 60% of global terrestrial photosynthesis, but rising ground-level O3 may compromise their function; the mechanisms behind species differences are unclear.
- What they did: The study exposed 11 tropical tree species to varying O3 concentrations using open-top chambers and measured whole-plant biomass responses and key functional traits, including PMA.
- The result: Antioxidant capacity and leaf mass per area were not predictive of O3 susceptibility, while higher PMA was linked to greater resilience within the experimental framework, informing trait-based risk assessments and carbon-cycle models.
The findingWhy it mattersWhat they didThe result
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