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Article

Leaf phenology determines the response of poplar genotypes to O3 through mesophyll conductance.

The Plant journal : for cell and molecular biology - 1 Mar 2025

Hoshika Yasutomo, Paoletti Elena, Pisuttu Claudia, Cotrozzi Lorenzo, Haworth Matthew, Pellegrini Elisa, Nali Cristina, Ribeiro Rafael Vasconcelos, Mayer Juliana Lischka Sampaio, Moura Barbara Baesso

Abstract excerpt

Tropospheric ozone (O3) is a phytotoxic air pollutant that impairs photosynthesis. The mechanisms of O3-induced reduction of mesophyll conductance (gm) are not clear. We investigated the interaction of O3 and leaf age on gm by using structural equation modelling (SEM) for two poplar clones (I-214 and Oxford) exposed to three O3 levels (ambient air, AA; 1.5 × AA; 2.0 × AA) in a free-air controlled experiment....

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PMID: 40052505
DOI: 10.1111/tpj.70091
PMCID: PMC11887005

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