| Autor: |
Cristina Nali, Marco Landi, Fernando Malorgio, Lucia Guidi, G. Lauria, L. Sanita' Di Toppi, Erika Bellini, Luca Paoli, Ermes Lo Piccolo, Damiano Remorini, Paolo Vernieri, Elisa Pellegrini, Tommaso Giordani, Giacomo Lorenzini, Rossano Massai |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Photosynthetica, Vol 59, Iss 4, Pp 557-569 (2021) |
| Popis: |
Selected light wavebands promote plant development and/or the biosynthesis of targeted metabolites. This work offers new insights on the effects of red (R), green (G), blue (B), and white (W - R:G:B; 1:1:1) LED light supplementation on physiochemical traits of strawberry leaves. Gas exchange and chlorophyll fluorescence parameters, photosynthetic pigments, and superoxide anion (*O2-) content were analysed in plants grown for 1 (T1) and 17 (T17) d with light supplementations. At T1, light supplementations resulted in the enhancement of the de-epoxidation state of xanthophylls and nonphotochemical quenching, but no changes were observed in maximal photosynthetic rate (PNmax), irrespective of light spectra. At T17, xanthophyll contents remained higher only in R-supplemented plants. Overall, W light resulted in higher photosynthesis, whilst R and B light depressed PNmax values and promoted *O2- formation at T17. G light did not induce variations in photosynthetic traits nor induced oxidative stress at both T1 and T17. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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