Daily temperature drop prevents inhibition of photosynthesis in tomato plants under continuous light
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| 024 | 7 | 0 | |a 10.1007/s11099-015-0115-4 |2 doi |
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| 245 | 0 | 0 | |a Daily temperature drop prevents inhibition of photosynthesis in tomato plants under continuous light |h [Elektronische Daten] |c [E. Ikkonen, T. Shibaeva, E. Rosenqvist, C. Ottosen] |
| 520 | 3 | |a The negative effects of continuous light (CL) seen in tomato plants are often claimed to be linked to effects of offsetting the diurnal rhythm. In this study we tested whether a short-term daily temperature drop prevents the decreased photosynthetic performance seen in tomato plants grown under CL. Tomato (Lycopersicon esculentum Mill.) plantlets were grown at constant temperature of 26°C under 16-h day (16D) or 24-h day (24D) at 150 μmol m−2 s−1 PPFD. Some 24D plants were treated daily by 2 h temperature drop from 26 to 10°C (24D+DROP). Physiological disorder, such as severe leaf chlorosis, a large decrease in net photosynthetic rate, maximal quantum yield of PSII photochemistry, and the effective quantum yield of PSII photochemistry were observed in 24D, but not in 16D and 24D+DROP plants. The daily 2-h drop in temperature eliminated a negative effect of CL on photosynthesis and prevented the development of leaf chlorosis in tomato plants. This could be due to a change in carbohydrate metabolism as the short drop in temperature might allow maintenance of the diurnal rhythms. | |
| 540 | |a The Institute of Experimental Botany, 2015 | ||
| 690 | 7 | |a chlorophyll fluorescence |2 nationallicence | |
| 690 | 7 | |a gas exchange |2 nationallicence | |
| 690 | 7 | |a leaf area |2 nationallicence | |
| 690 | 7 | |a photodamage |2 nationallicence | |
| 690 | 7 | |a stomatal conductance |2 nationallicence | |
| 690 | 7 | |a C a : ambient CO2 concentration |2 nationallicence | |
| 690 | 7 | |a C i : intercellular CO2 concentration |2 nationallicence | |
| 690 | 7 | |a Chl : chlorophyll |2 nationallicence | |
| 690 | 7 | |a CL : continuous light |2 nationallicence | |
| 690 | 7 | |a DM : dry mass |2 nationallicence | |
| 690 | 7 | |a DROP : daily short-term temperature decrease |2 nationallicence | |
| 690 | 7 | |a F0 : minimal fluorescence yield of the dark-adapted state |2 nationallicence | |
| 690 | 7 | |a Fm : maximal fluorescence yield of the dark-adapted state |2 nationallicence | |
| 690 | 7 | |a Fm′ : maximal fluorescence yield of the light-adapted state |2 nationallicence | |
| 690 | 7 | |a Fv : variable fluorescence |2 nationallicence | |
| 690 | 7 | |a Fv/Fm : maximal quantum yield of PSII photochemistry |2 nationallicence | |
| 690 | 7 | |a g s : stomatal conductance |2 nationallicence | |
| 690 | 7 | |a LA : leaf area |2 nationallicence | |
| 690 | 7 | |a P N : net photosynthetic rate |2 nationallicence | |
| 690 | 7 | |a R D : dark respiration rate |2 nationallicence | |
| 690 | 7 | |a α : apparent quantum yield of photosynthesis |2 nationallicence | |
| 690 | 7 | |a ΦPSII : effective quantum yield of PSII photochemistry |2 nationallicence | |
| 700 | 1 | |a Ikkonen |D E. |u Institute of Biology, Karelian Research Centre, Russian Academy of Sciences, Pushkinskaya 11, 185910, Petrozavodsk, Russia |4 aut | |
| 700 | 1 | |a Shibaeva |D T. |u Institute of Biology, Karelian Research Centre, Russian Academy of Sciences, Pushkinskaya 11, 185910, Petrozavodsk, Russia |4 aut | |
| 700 | 1 | |a Rosenqvist |D E. |u Department of Plant and Environmental Sciences, University of Copenhagen, Hoejbakkegaard Alle 9, DK-2630, Taastrup, Denmark |4 aut | |
| 700 | 1 | |a Ottosen |D C. |u Department of Food Science, Aarhus University, Kirstinebjergvej 10, 5792, Årslev, Denmark |4 aut | |
| 773 | 0 | |t Photosynthetica |d The Institute of Experimental Biology of the Czech Academy of Sciences |g 53/3(2015-09-01), 389-394 |x 0300-3604 |q 53:3<389 |1 2015 |2 53 |o 11099 | |
| 856 | 4 | 0 | |u https://doi.org/10.1007/s11099-015-0115-4 |q text/html |z Onlinezugriff via DOI |
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| 908 | |D 1 |a research-article |2 jats | ||
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| 950 | |B NATIONALLICENCE |P 856 |E 40 |u https://doi.org/10.1007/s11099-015-0115-4 |q text/html |z Onlinezugriff via DOI | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Ikkonen |D E. |u Institute of Biology, Karelian Research Centre, Russian Academy of Sciences, Pushkinskaya 11, 185910, Petrozavodsk, Russia |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Shibaeva |D T. |u Institute of Biology, Karelian Research Centre, Russian Academy of Sciences, Pushkinskaya 11, 185910, Petrozavodsk, Russia |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Rosenqvist |D E. |u Department of Plant and Environmental Sciences, University of Copenhagen, Hoejbakkegaard Alle 9, DK-2630, Taastrup, Denmark |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Ottosen |D C. |u Department of Food Science, Aarhus University, Kirstinebjergvej 10, 5792, Årslev, Denmark |4 aut | ||
| 950 | |B NATIONALLICENCE |P 773 |E 0- |t Photosynthetica |d The Institute of Experimental Biology of the Czech Academy of Sciences |g 53/3(2015-09-01), 389-394 |x 0300-3604 |q 53:3<389 |1 2015 |2 53 |o 11099 | ||