Photosynthetic traits and biochemical responses in strawberry  (Fragaria × ananassa Duch.) leaves supplemented with LED lights

G.  LAURIA; E.  PICCOLO; E.  PELLEGRINI; E.  BELLINI; T.  GIORDANI; L.  GUIDI; G.  LORENZINI; F.  MALORGIO; R.  MASSAI; C.  NALI; L.  PAOLI; D.  REMORINI; L. SANITA' DI TOPPI; P.  VERNIERI; M.  LANDI

doi:10.32615/ps.2021.048

Photosynthetica (Dec 2021)

Photosynthetic traits and biochemical responses in strawberry (Fragaria × ananassa Duch.) leaves supplemented with LED lights

G. LAURIA,
E. PICCOLO,
E. PELLEGRINI,
E. BELLINI,
T. GIORDANI,
L. GUIDI,
G. LORENZINI,
F. MALORGIO,
R. MASSAI,
C. NALI,
L. PAOLI,
D. REMORINI,
L. SANITA' DI TOPPI,
P. VERNIERI,
M. LANDI

Affiliations

G. LAURIA: Department of Agriculture, Food and Environment, University of Pisa, 56124 Pisa, Italy
E. PICCOLO: Department of Agriculture, Food and Environment, University of Pisa, 56124 Pisa, Italy
E. PELLEGRINI: Department of Agriculture, Food and Environment, University of Pisa, 56124 Pisa, Italy
E. BELLINI: Department of Biology, University of Pisa, via Ghini 13, 56126 Pisa, Italy
T. GIORDANI: Department of Agriculture, Food and Environment, University of Pisa, 56124 Pisa, Italy
L. GUIDI: Department of Agriculture, Food and Environment, University of Pisa, 56124 Pisa, Italy
G. LORENZINI: Department of Agriculture, Food and Environment, University of Pisa, 56124 Pisa, Italy
F. MALORGIO: Department of Agriculture, Food and Environment, University of Pisa, 56124 Pisa, Italy
R. MASSAI: Department of Agriculture, Food and Environment, University of Pisa, 56124 Pisa, Italy
C. NALI: Department of Agriculture, Food and Environment, University of Pisa, 56124 Pisa, Italy
L. PAOLI: Department of Biology, University of Pisa, via Ghini 13, 56126 Pisa, Italy
D. REMORINI: Department of Agriculture, Food and Environment, University of Pisa, 56124 Pisa, Italy
L. SANITA' DI TOPPI: Department of Biology, University of Pisa, via Ghini 13, 56126 Pisa, Italy
P. VERNIERI: Department of Biology, University of Pisa, via Ghini 13, 56126 Pisa, Italy
M. LANDI: Department of Agriculture, Food and Environment, University of Pisa, 56124 Pisa, Italy

DOI: https://doi.org/10.32615/ps.2021.048
Journal volume & issue: Vol. 59, no. 4
pp. 557 – 569

Abstract

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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.

Published in Photosynthetica

ISSN: 0300-3604 (Print); 1573-9058 (Online)
Publisher: Academy of Sciences of the Czech Republic, Institute of Experimental Botany
Country of publisher: Czechia
LCC subjects: Science: Botany
Website: https://ps.ueb.cas.cz/

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