Photosynthetic acclimation to temperature is affected by night temperature in Zea mays
In this study, Zea mays L. was grown in indoor controlled environment chambers with a uniform daytime temperature of 30°C, and night-time temperatures of 30, 25, 20, or 15°C. Responses of net photosynthesis (PN) of mature leaves at high PPFD to intercellular CO2 concentrations (Ci) were measured at...
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| Format: | Article |
| Language: | English |
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Academy of Sciences of the Czech Republic, Institute of Experimental Botany
2024-02-01
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| Series: | Photosynthetica |
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| Online Access: | https://ps.ueb.cas.cz/artkey/phs-202401-0012_photosynthetic-acclimation-to-temperature-is-affected-by-night-temperature-in-zea-mays.php |
| Summary: | In this study, Zea mays L. was grown in indoor controlled environment chambers with a uniform daytime temperature of 30°C, and night-time temperatures of 30, 25, 20, or 15°C. Responses of net photosynthesis (PN) of mature leaves at high PPFD to intercellular CO2 concentrations (Ci) were measured at 20, 25, and 30°C using a new method that generates a complete PN vs. Ci curve in less than four minutes. Results indicated that photosynthesis measured at both Ci values of 25 and 150 μmol mol-1 increased strongly with measurement temperature in plants grown with night temperatures of 25 and 30°C, but there was a much smaller change in photosynthesis with temperature in plants grown with night temperatures of 15 or 20°C. These results indicate that the acclimation of photosynthesis to temperature in this C4 species is substantially affected by night temperature. |
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| ISSN: | 0300-3604 1573-9058 |