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Start Over Creator Zhu, J.-G.

1. Elevated CO2 concentration enhances the role of the ear to the flag leaf in determining grain yield of wheat

Creator:
Zhu, C.-W., Zhu, J.-G., Liu, G., Zeng, Q., Xie, Z.-B., Pang, J., Feng, Z.-Z., Tang, H.-Y., and Wang, L.
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
net photosynthetic rate and Triticum aestivum
Language:
Multiple languages
Description:
Net photosynthetic rate (PN) of ear and flag leaf during grain filling stage and grain yield of plants with non-darkened or darkened flag leaf or darkened ear were examined in two different CO2 concentrations: ambient (AC) and AC+200 µmol mol-1 (EC). Ear showed much higher enhancement (56 %) of PN than flag leaf (23 %) under EC. Moreover, CO2 enrichment shortened the photosynthetic duration of flag leaf relative to ear. In this way the ratio of ear to flag leaf contribution to grain yield increased from 1.18 (AC) to 1.39 (EC). and C.-W. Zhu ... [et al.].
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

2. 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.
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
apparent quantum yield, carboxylation efficiency, net photosynthetic rate, nitrogen supply, Oryza, and ribulose-1,5-bisphosphate regeneration
Language:
Multiple languages
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.].
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

3. Photosynthetic acclimation to CO2 enrichment related to ribulose-1,5-bisphosphate carboxylation limitation in wheat

Creator:
Zhang, D.-Y., Chen, G.-Y., Chen, J., Yong, Z.-H., Zhu, J.-G., and Xu, D.-Q.
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
maximum in vivo electron transport rate, net photosynthetic rate, ribulose-1,5-bisphosphate carboxylase, oxygenase activase, RuBP regeneration limitation, sucrose-phosphate synthase, and Triticum
Language:
Multiple languages
Description:
Net photosynthetic rate (PN) measured at the same CO2 concentration, the maximum in vivo carboxylation rate, and contents of ribulose-1,5-bisphosphate (RuBP) carboxylase/oxygenase (RuBPCO) and RuBPCO activase were significantly decreased, but the maximum in vivo electron transport rate and RuBP content had no significant change in CO2-enriched [EC, about 200 µmol mol-1 above the ambient CO2 concentration (AC)] wheat leaves compared with those in AC grown wheat leaves. Hence photosynthetic acclimation in wheat leaves to EC is largely due to RuBP carboxylation limitation. and D.-Y. Zhang ... [et al.].
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public