Effects of long-term action of high temperature and high light on the activity and energy interaction of both photosystems in tomato plants

Title:

Effects of long-term action of high temperature and high light on the activity and energy interaction of both photosystems in tomato plants

Creator:

Faik, A., Popova, A. V., and Velitchkova, M.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:f5231c42-d144-49d7-8fdf-30d163b2afa1
uuid:f5231c42-d144-49d7-8fdf-30d163b2afa1
issn:0300-3604
doi:10.1007/s11099-016-0644-5

Subject:

karotenoidy, chlorofyl, vysoké teploty, carotenoids, chlorophyll, high temperatures, anténní komplexy, rychlost přenosu elektronů, fluorescence, pigment-proteinové komplexy, rajče, fotosystém, antenna complexes, electron transport rate, pigment-protein complexes, spillover, tomato, photosystem, 2, and 581

Type:

model:article and TEXT

Format:

print, bez média, and svazek

Description:

The acclimation to high light, elevated temperature, and combination of both factors was evaluated in tomato (Solanum lycopersicum cv. M82) by determination of photochemical activities of PSI and PSII and by analyzing 77 K fluorescence of isolated thylakoid membranes. Developed plants were exposed for six days to different combinations of temperature and light intensity followed by five days of a recovery period. Photochemical activities of both photosystems showed different sensitivity towards the heat treatment in dependence on light intensity. Elevated temperature exhibited more negative impact on PSII activity, while PSI was slightly stimulated. Analysis of 77 K fluorescence emission and excitation spectra showed alterations in the energy distribution between both photosystems indicating alterations in light-harvesting complexes. Light intensity affected the antenna complexes of both photosystems stronger than temperature. Our results demonstrated that simultaneous action of high-light intensity and high temperature promoted the acclimation of tomato plants regarding the activity of both photosystems in thylakoid membranes., A. Faik, A. V. Popova, M. Velitchkova., and Obsahuje bibliografii

Language:

Multiple languages

Rights:

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

Coverage:

611-619

Source:

Photosynthetica | 2016 Volume:54 | Number:4

Harvested from:

CDK

Metadata only:

false