Is photosynthetic acclimation to free-air CO2 enrichment (FACE) related to a strong competition for the assimilatory power between carbon assimilation and nitrogen assimilation in rice leaf?

Title:

Is photosynthetic acclimation to free-air CO2 enrichment (FACE) related to a strong competition for the assimilatory power between carbon assimilation and nitrogen assimilation in rice leaf?

Creator:

Yong, Z.-H., Chen, G.-Y., Zhang, D.-Y., Chen, Y., Chen, J., Zhu, J.-G., and Xu, D.-Q.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:2204386b-a093-4bac-b684-872f148a3fd2
uuid:2204386b-a093-4bac-b684-872f148a3fd2
issn:0300-3604
doi:10.1007/s11099-007-0013-5

Subject:

apparent quantum yield, carboxylation efficiency, net photosynthetic rate, nitrogen supply, Oryza, and ribulose-1,5-bisphosphate regeneration

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

Net photosynthetic rate (PN) of leaves grown under free-air CO2 enriched condition (FACE, about 200 µmol mol-1 above ambient air) was significantly lower than PN of leaves grown at ambient CO2 concentration (AC) when measured at CO2 concentration of 580 µmol mol-1. This difference was found in rice plants grown at normal nitrogen supply (25 g m-2; NN-plants) but not in plants grown at low nitrogen supply (15 g m-2; LN-plants). Namely, photosynthetic acclimation to FACE was observed in NN-plants but not in LN-plants. Different from the above results measured in a period of continuous sunny days, such photosynthetic acclimation occurred in NN-plants, however, it was also observed in LN-plants when PN was measured before noon of the first sunny day after rain. Hence strong competition for the assimilatory power between nitrogen (N) and carbon (C) assimilations induced by an excessive N supply may lead to the photosynthetic acclimation to FACE in NN-plants. The hypothesis is supported by the following facts: FACE induced significant decrease in both apparent photosynthetic quantum yield (Φc) and ribulose-1,5-bisphosphate (RuBP) content in NN-plants but not in LN-plants. and Z.-H. Yong ... [et al.].

Language:

Multiple languages

Rights:

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

Coverage:

85-91

Source:

Photosynthetica | 2007 Volume:45 | Number:1

Harvested from:

CDK

Metadata only:

false