Photosynthetic characteristics of C4 trait in chlorina mutant of rice (Oryza sativa L.)

Title:

Photosynthetic characteristics of C4 trait in chlorina mutant of rice (Oryza sativa L.)

Creator:

Ou, L.-J., Li, W.-J., Tian, L.-F., Chen, Z., Dai, X.-J., Deng, L.-X., Qiu, Y.-L., Li, H., Liu, P., Liang, M.-Z., Luan, S., and Chen, L.-B.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:11981881-f27a-4c1f-8395-c95535995f54
uuid:11981881-f27a-4c1f-8395-c95535995f54
issn:0300-3604
doi:10.1007/s11099-008-0099-4

Subject:

C3 and C4 plants, NADP-malic enzyme, net photosynthetic rate, phosphoenolpyruvate carboxylase, quantum efficiency, ribulose-1,5-bisphosphate carboxylase, and oxygenase

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

Biao 810S is a chlorina mutant of the thermosensitive genic male sterile (TGMS) rice. We compared photosynthetic characteristics of these two lines. The contents of chlorophylls and carotenoids in Biao 810S were approximately half of those in 810S. However, the net photosynthetic rate (PN) of Biao 810S was higher than that of 810S under high irradiance or low concentration of carbon dioxide, and the photon quantum efficiency was higher than that of 810S. The activity of ribulose-1,5-bisphosphate carboxylase/oxygenase in Biao 810S was only 69.80 % of that in 810S, but the activities of phosphoenolpyruvate carboxylase and NADP-malic enzyme were 79.50 and 69.06 % higher than those of 810S, respectively, suggesting that the efficiency of photon energy utilization in Biao 810S was enhanced by reduction of thermal dissipation and increase of electron transfer rate to generate sufficient assimilation power for the dark reactions. Consequently, the increased activities of C4 photosynthetic enzymes lead to more effective fixation of CO2 and the synergistic effect of light and dark reactions contributed to the higher PN of Biao 810S. and L.-J. Ou ... [et al.].

Language:

Multiple languages

Rights:

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

Coverage:

589-594

Source:

Photosynthetica | 2008 Volume:46 | Number:4

Harvested from:

CDK

Metadata only:

false