SHORT- AND LONG-TERM EFFECTS OF ELEVATED CO2 ON PHOTOSYNTHESIS AND RESPIRATION IN THE MARINE MACROALGA HIZIKIA FUSIFORMIS (SARGASSACEAE, PHAEOPHYTA) GROWN AT LOW AND HIGH N SUPPLIES

CORC > 厦门大学 > 海洋环境－已发表论文

	SHORT- AND LONG-TERM EFFECTS OF ELEVATED CO2 ON PHOTOSYNTHESIS AND RESPIRATION IN THE MARINE MACROALGA HIZIKIA FUSIFORMIS (SARGASSACEAE, PHAEOPHYTA) GROWN AT LOW AND HIGH N SUPPLIES
	Zou, D. H. ; Gao, K. S. ; Luo, H. J. ; Gao KS(高坤山)
刊名	http://dx.doi.org/10.1111/j.1529-8817.2010.00929.x
	2011-02
关键词	CARBONIC-ANHYDRASE ACTIVITY ATMOSPHERIC CO2 INORGANIC CARBON ULVA-RIGIDA NITROGEN-METABOLISM PLANT RESPIRATION ROOT RESPIRATION GRACILARIA SP ENHANCED CO2 TEMPERATURE
英文摘要	Chinese 973 Project [2009CB421207]; National Natural Science Foundation of China [41076094, 30970450]; Program for New Century Excellent Talents in University [NCET-10-0375]; Chinese 863 project [2006AA10A416]; SCUT [2009ZZ0074]; The short-term and long-term effects of elevated CO2 on photosynthesis and respiration were examined in cultures of the marine brown macroalga Hizikia fusiformis (Harv.) Okamura grown under ambient (375 mu L center dot L-1) and elevated (700 mu L center dot L-1) CO2 concentrations and at low and high N availability. Short-term exposure to CO2 enrichment stimulated photosynthesis, and this stimulation was maintained with prolonged growth at elevated CO2, regardless of the N levels in culture, indicating no down-regulation of photosynthesis with prolonged growth at elevated CO2. However, the photosynthetic rate of low-N-grown H. fusiformis was more responsive to CO2 enrichment than that of high-N-grown algae. Elevation of CO2 concentration increased the value of K-1/2(Ci) (the half-saturation constant) for photosynthesis, whereas high N supply lowered it. Neither short-term nor long-term CO2 enrichment had inhibitory effects on respiration rate, irrespective of the N supply, under which the algae were grown. Under high-N growth, the Q(10) value of respiration was higher in the elevated-CO2-grown algae than the ambient-CO2-grown algae. Either short- or long-term exposure to CO2 enrichment decreased respiration as a proportion of gross photosynthesis (Pg) in low-N-grown H. fusiformis. It was proposed that in a future world of higher atmospheric CO2 concentration and simultaneous coastal eutrophication, the respiratory carbon flux would be more sensitive to changing temperature.
语种	英语
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/60894]
专题	海洋环境－已发表论文
推荐引用方式 GB/T 7714	Zou, D. H.,Gao, K. S.,Luo, H. J.,et al. SHORT- AND LONG-TERM EFFECTS OF ELEVATED CO2 ON PHOTOSYNTHESIS AND RESPIRATION IN THE MARINE MACROALGA HIZIKIA FUSIFORMIS (SARGASSACEAE, PHAEOPHYTA) GROWN AT LOW AND HIGH N SUPPLIES[J]. http://dx.doi.org/10.1111/j.1529-8817.2010.00929.x,2011.
APA	Zou, D. H.,Gao, K. S.,Luo, H. J.,&高坤山.(2011).SHORT- AND LONG-TERM EFFECTS OF ELEVATED CO2 ON PHOTOSYNTHESIS AND RESPIRATION IN THE MARINE MACROALGA HIZIKIA FUSIFORMIS (SARGASSACEAE, PHAEOPHYTA) GROWN AT LOW AND HIGH N SUPPLIES.http://dx.doi.org/10.1111/j.1529-8817.2010.00929.x.
MLA	Zou, D. H.,et al."SHORT- AND LONG-TERM EFFECTS OF ELEVATED CO2 ON PHOTOSYNTHESIS AND RESPIRATION IN THE MARINE MACROALGA HIZIKIA FUSIFORMIS (SARGASSACEAE, PHAEOPHYTA) GROWN AT LOW AND HIGH N SUPPLIES".http://dx.doi.org/10.1111/j.1529-8817.2010.00929.x (2011).