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

被引：8

作者：

Lauria, G. ^{[1
]}

Piccolo, E. ^{[1
]}

Pellegrini, E. ^{[1
]}

Bellini, E. ^{[2
]}

Giordani, T. ^{[1
]}

Guidi, L. ^{[1
]}

Lorenzini, G. ^{[1
]}

Malorgio, F. ^{[1
]}

Massai, R. ^{[1
]}

Nali, C. ^{[1
]}

Paoli, L. ^{[2
]}

Remorini, D. ^{[1
]}

Sanita' di Toppi, L. ^{[2
]}

Vernieri, P. ^{[2
]}

Landi, M. ^{[1
]}

机构：

[1] Univ Pisa, Dept Agr Food & Environm, I-56124 Pisa, Italy

[2] Univ Pisa, Dept Biol, Via Ghini 13, I-56126 Pisa, Italy

来源：

PHOTOSYNTHETICA | 2021年 / 59卷 / 04期

关键词：

chlorophyll a fluorescence; gas exchange; mesophyll conductance; oxidative stress; superoxide anion; xanthophyll; BLUE-LIGHT; GREEN-LIGHT; MESOPHYLL CONDUCTANCE; CO2; ASSIMILATION; EMITTING-DIODES; GROWTH; RED; LEAF; QUALITY; PLANTS;

D O I：

10.32615/ps.2021.048

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

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 (center dot 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 center dot O2- formation at T17. G light did not induce variations in photosynthetic traits nor induced oxidative stress at both T1 and T17.

引用

页码：557 / 569

页数：13

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