Decreased Photosynthetic Efficiency in Nicotiana tabacum L. under Transient Heat Stress
Renan Falcioni,
Marcelo Luiz Chicati,
Roney Berti de Oliveira
et al.
Abstract:Heat stress is an abiotic factor that affects the photosynthetic parameters of plants. In this study, we examined the photosynthetic mechanisms underlying the rapid response of tobacco plants to heat stress in a controlled environment. To evaluate transient heat stress conditions, changes in photochemical, carboxylative, and fluorescence efficiencies were measured using an infrared gas analyser (IRGA Licor 6800) coupled with chlorophyll a fluorescence measurements. Our findings indicated that significant disru… Show more
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