High-light-like photosynthetic responses of Cucumis sativus leaves acclimated to fluorescent illumination with a high red:far-red ratio: interaction between light quality and quantity

Title:

High-light-like photosynthetic responses of Cucumis sativus leaves acclimated to fluorescent illumination with a high red:far-red ratio: interaction between light quality and quantity

Creator:

Shibuya, T., Endo, R., Hayashi, N., and Kitaya, Y.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:d0d28637-5d56-4d2d-a0bd-69de2e717389
uuid:d0d28637-5d56-4d2d-a0bd-69de2e717389
issn:0300-3604
doi:10.1007/s11099-012-0071-1

Subject:

botanika, botany, fluorescent lamp, gross photosynthetic rate, leaf mass per unit area, light quality, quantum efficiency of photosystem II, 2, and 58

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

This study evaluated the photosynthetic responses of Cucumis sativus leaves acclimated to illumination from three-band white fluorescent lamps with a high red:far-red (R:FR) ratio (R:FR = 10.5) and the photosynthetic responses of leaves acclimated to metal-halide lamps that provided a spectrum similar to that of natural light (R:FR = 1.2) at acclimation photosynthetic photon flux density (PPFD) of 100 to 700 μmol m-2 s-1. The maximum gross photosynthetic rate (PG) of the fluorescent-acclimated leaves was approximately 1.4 times that of the metal-halide-acclimated leaves at all acclimation PPFDs. The ratio of quantum efficiency of photosystem II (ΦPSII) of the fluorescent-acclimated leaves to that of the metal-halide-acclimated leaves tended to increase with increasing acclimation PPFD, whereas the corresponding ratios for the leaf mass per unit area tended to decrease with increasing acclimation PPFD. These results suggest that the greater maximum PG of the fluorescent-acclimated leaves resulted from an interaction between the acclimation light quality and quantity, which was mainly caused by the greater leaf biomass for photosynthesis per area at low acclimation PPFDs and by the higher ΦPSII as a result of changes in characteristics and distribution of chloroplasts, or a combination of these factors at high acclimation PPFDs., T. Shibuya .... [et al.]., and Obsahuje bibliografii

Language:

Multiple languages

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

623-629

Source:

Photosynthetica | 2012 Volume:50 | Number:4

Harvested from:

CDK

Metadata only:

false