Is photosynthetic acclimation to free-air CO&lt;sub&gt;2&lt;/sub&gt; enrichment (FACE) related to a strong competition for the assimilatory power between carbon assimilation and nitrogen assimilation in rice leaf?

Yong, Zhen-Hua; Chen, G.-Y.; Zhang, D.-Y.; Chen, Yuanchang; Chen, J.; Zhu, Jiang; Xu, Dongxin

doi:10.1007/s11099-007-0013-5

Cited by 15 publications

(8 citation statements)

References 26 publications

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“…Obviously, the mechanism of photosynthetic acclimation in wheat is different from that in rice (cf. Yong et al 2007) where the photosynthetic acclimation is related to both RuBP carboxylation limitation and RuBP regeneration limitation and the latter is predominant one (Chen et al 2005, Zhang et al 2008). It appears that the mechanism for photosynthetic acclimation to EC treatment operating in rice is species-dependent but not universal.…”

Section: --mentioning

confidence: 99%

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

Zhang¹,

Chen²,

Chen³

et al. 2009

Photosynt.

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Net photosynthetic rate (P N ) measured at the same CO 2 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 CO 2 -enriched [EC, about 200 μmol mol −1 above the ambient CO 2 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.Additional key words: maximum in vivo electron transport rate; net photosynthetic rate; ribulose-1,5-bisphosphate carboxylase/oxygenase activase; RuBP regeneration limitation; sucrose-phosphate synthase; Triticum. --After long-term exposure to elevated CO 2 concentration (EC) leaf net photosynthetic rate (P N ) is often significantly lower in the plants grown at EC than that in plants grown in ambient air (AC) when measured at a same CO 2 concentration. This phenomenon is so called photosynthetic acclimation to EC (Xu et al. 1994). Usually, this acclimation has been almost entirely attributed to the decrease in active ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBPCO) (Jacob et al. 1995, Rogers and Humphries 2000, Pérez et al. 2007). Nevertheless, Chen et al. (2005 reported that the photosynthetic acclimation in rice leaves is related to both RuBP carboxylation limitation and RuBP regeneration limitation. The similar result was also observed in Norway spruce (Urban et al. 2003). Furthermore, Zhang et al. (2008) has demonstrated that RuBP regeneration limitation is predominant within the two limitations. However, it is not known whether such mechanism of photosynthetic acclimation operating in rice is speciesspecific or universal. In order to answer the question the photosynthetic acclimation was investigated further in wheat.The Chinese CO 2 enrichment facilities were located at Xiaoji village (119°42'0"E, 32°35'5"N), Yangzhou city in Jiangsu Province, East China. In the experimental field, there were six rings of 15 m diameter. Among them, three rings were sprayed with pure CO 2 as EC treatment, and the others were in the normal atmosphere as AC control. The distances between EC and AC rings were more than 90 m. Target CO 2 concentration in the centre of EC rings was about 200 μmol mol -1 above the AC. The EC treatment was made from emergence of wheat seedlings to harvesting. Seeds of wheat (Triticum aestivum L.cv. Ningmai 9) were sown in mid November. The cultivation of wheat was performed with typical agronomic management techniques for this region.---Abbreviations: C i -internal CO 2 concentration; Cyt -cytochrome; J max -maximum in vivo electron transport rate; P N − net photosynthetic rate; RuBP -ribulose-1,5-bisphosphate; RuBPCO -ribulose-1,5-bisphosphate carboxylase/oxygenase; SPS -sucrosephosphate synthase; V cmax -maximum in vivo carboxylation rate. Acknowledgements: The Chinese Rice/Wheat free-air CO 2 enrichment project ...

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Section: --mentioning

confidence: 99%

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

Zhang¹,

Chen²,

Chen³

et al. 2009

Photosynt.

Self Cite

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“…The method of Yong et al [35] was determined them during 09∶00−11∶00 (Beijing time) in mid-August (flowering stage) using Li-6400 ( Li-Cor , USA). For determining the response to irradiance, P N was measured at photosynthetic photon flux density of 2 000, 1 800, 1 600, 1 400, 1 200, 1 000, 800, 600, 400, 200, 100, 50, 25, and 0 µmol·m −2 ·s −1 in turn from a Li-Cor LED irradiation source.…”

Section: Methodsmentioning

confidence: 99%

Photooxidation Tolerance Characters of a New Purple Pepper

Zhang

Dai

et al. 2013

PLoS ONE

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Huai Zi (HZ) is a new purple mutant of green pepper (PI 631133) that is obtained from the United States Department of Agriculture. The net photosynthetic rate (P N), chlorophyll fluorescence parameters, antioxidant substances, antioxidant enzymes, photosystem 1 (PS1) and PS2 activities were studied through methyl viologen (MV) treatment. The results showed that the P N, actual photochemical efficiency of PS2 (ΦPS2), photochemical quenching coefficient (qP), PS1 and PS2 activities in HZ were lower than those in green pepper. HZ had a stronger ability to eliminate reactive oxygen species(O2 •−) and accumulated less malondialdehyde (MDA) (a membrane lipid peroxidation product) than did green pepper, and had a higher content of antioxidants and antioxidant enzyme activity. This suggests that the lower light energy absorption and higher thermal dissipation and antioxidant activity of HZ contributed to a more stable PS2 photosynthetic capacity, which resulted in photooxidation tolerance. Hence, our study strongly suggests that pepper hybrids can achieve a modest ratio of chlorophyll and anthocyanin content, high P N and resistance to photooxidation, improving yield and resistance to adverse environments.

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“…Gas exchange (Yong et al 2007) was determined in plants with 10−12 fully expanded flag leaves in each ring during 09:00−11:00 (Beijing time) in mid-August (heading stage). For determining the response to irradiance, P N was measured at photosynthetic photon flux density (PPFD) of 2 000, 1 800, 1 600, 1 400, 1 200, 1 000, 800, 600, 400, 200, 100, 50, 25, and 0 µmol m −2 s −1 in turn from a Li-Cor LED irradiation source.…”

Section: Methodsmentioning

confidence: 99%

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

Ou¹,

Li²,

Tian³

et al. 2008

Photosynt.

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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 (P N ) 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 C 4 photosynthetic enzymes lead to more effective fixation of CO 2 and the synergistic effect of light and dark reactions contributed to the higher P N of Biao 810S.Additional key words: C 3 and C 4 plants; NADP-malic enzyme; net photosynthetic rate; phosphoenolpyruvate carboxylase; quantum efficiency; ribulose-1,5-bisphosphate carboxylase/oxygenase.

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Is photosynthetic acclimation to free-air CO<sub>2</sub> enrichment (FACE) related to a strong competition for the assimilatory power between carbon assimilation and nitrogen assimilation in rice leaf?

Cited by 15 publications

References 26 publications

Photosynthetic acclimation to CO<sub>2</sub> enrichment related to ribulose-1,5-bisphosphate carboxylation limitation in wheat

Photosynthetic acclimation to CO<sub>2</sub> enrichment related to ribulose-1,5-bisphosphate carboxylation limitation in wheat

Photooxidation Tolerance Characters of a New Purple Pepper

Photosynthetic characteristics of C<sub>4</sub> trait in chlorina mutant of rice (Oryza sativa L.)

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