Effects of 5-aminolevulinic acid treatment on photosynthesis of strawberry

Title:

Effects of 5-aminolevulinic acid treatment on photosynthesis of strawberry

Creator:

Sun, Y. P., Liu, J., Cao, R. X., Huang, Y. J., Hall, A. M., Guo, C. B., and Wang, L. J.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:0ec9cd1e-27a3-43ae-a6f6-621182c8703f
uuid:0ec9cd1e-27a3-43ae-a6f6-621182c8703f
issn:0300-3604
doi:10.1007/s11099-016-0667-y

Subject:

jahody, strawberries, fluorescence chlorofylu, výměna plynu, tepelná fáze, fotochemická fáze, fotosystém I, fotosystém II, jahodník velkoplodý, chlorophyll fluorescence, gas exchange, heat phase, photochemical phase, photosystem I, photosystem II, 2, and 581

Type:

model:article and TEXT

Format:

print, bez média, and svazek

Description:

Effects of root treatment with 5-aminolevulinic acid (ALA) on leaf photosynthesis in strawberry (Fragaria ananassa Duch.) plants were investigated by rapid chlorophyll fluorescence and modulated 820 nm reflection using 3-(3,4-dichlorophenyl)-1,1-dimethyl urea (DCMU) and methyl viologen (MV). Our results showed that ALA treatments increased the net photosynthetic rate and decreased the intercelluar CO2 concentration in strawberry leaves. Under DCMU treatment, trapping energy for QA reduction per PSII reaction center increased greatly, indicating DCMU inhibited electron transfer from QA−. The maximum photochemical efficiency of PSII (Fv/Fm) decreased under the DCMU treatment, while a higher Fv/Fm remained in the ALA-pretreated plants. Not only the parameters related to a photochemical phase, but also that one related to a heat phase remained lower after the ALA pretreatment, compared to the sole DCMU treatment. The MV treatment decreased PSI photochemical capacity. The results of modulated 820 nm reflection analysis showed that DCMU and MV treatments had low re-reduction of P700 and plastocyanin (PSI). However, the strawberry leaf discs pretreated with ALA exhibited high re-reduction of PSI under DCMU and MV treatments. The results of this study suggest that the improvement of photosynthesis by ALA in strawberry was not only related to PSII, but also to PSI and electron transfer chain., Y. P. Sun, J. Liu, R. X. Cao, Y. J. Huang, A. M. Hall, C. B. Guo, L. J. Wang., and Obsahuje bibliografii

Language:

Multiple languages

Rights:

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

Coverage:

276-284

Source:

Photosynthetica | 2017 Volume:55 | Number:2

Harvested from:

CDK

Metadata only:

false