Low concentrations of glycine inhibit photorespiration and enhance the net rate of photosynthesis in Caragana korshinskii

Title:

Low concentrations of glycine inhibit photorespiration and enhance the net rate of photosynthesis in Caragana korshinskii

Creator:

Kang, T., Wu, H. D., Lu, B. Y., Luo, X. J., Gong, C. M., and Bai, J.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:0d4daf8d-a007-4916-bb5f-1e09eff0e997
uuid:0d4daf8d-a007-4916-bb5f-1e09eff0e997
issn:0300-3604
doi:10.1007/s11099-017-0688-1

Subject:

fotosyntéza, photosynthesis, chlorofylová fluorescence, výměna plynu, pozitivní korelace, stomatální faktor, chlorophyll fluorescence, gas exchange, nonstomatal factor, stomatal factor, 2, and 581

Type:

model:article and TEXT

Format:

print, bez média, and svazek

Description:

The inhibition of photorespiration can be used to improve plant carbon fixation. In order to compare the effects of three photorespiration inhibitors [glycine, NaHSO3, and isonicotinyl hydrazide (INH)], photosynthetic parameters of leaves sprayed respectively with these chemicals were examined and their inhibiting efficiency was evaluated in Caragana korshinskii. Our results showed that 5 mM glycine could reduce the photorespiratory rate (PR) effectively, while the net photosynthetic rate (PN), stomatal conductance (gs), and intercellular CO2 concentration (Ci) significantly increased. The ratio of electron flow for ribulose-1,5-bisphosphate (RuBP) carboxylation to RuBP oxygenation was elevated markedly. NaHSO3 and INH could also suppress the PR in some cases, whereas PN was not improved. The glyoxylate content increased considerably after application of low concentrations of glycine. These results suggested that low concentrations of glycine could suppress photorespiration by feed-back inhibition of glyoxylate and enhance photosynthesis by regulating gs, Ci, and the distribution of electron flow in C. korshinskii., T. Kang, H. D. Wu, B. Y. Lu, X. J. Luo, C. M. Gong, J. Bai., and Obsahuje bibliografii

Language:

Multiple languages

Rights:

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

Coverage:

512-519

Source:

Photosynthetica | 2018 Volume:56 | Number:2

Harvested from:

CDK

Metadata only:

false