High temperature stress might hamper the success of sexual reproduction in Hizikia fusiformis from Shantou, China: a photosynthetic perspective
Zou, DH; Ji, ZW; Chen, WZ; Li, G; dhzou@scut.edu.cn
2018
发表期刊PHYCOLOGIA
卷号57期号:4页码:394-400
摘要Comparative studies of photosynthetic physiology were carried out to evaluate high light and temperature stresses in reproductive (receptacles) and vegetative (blades) tissues of fertile thalli of Hizikia fusiformis from Nanao Island, China. Receptacles had much higher rates of photosynthesis than blades, and temperature sensitivity was much higher for photosynthesis than for respiration. Both receptacles and blades survived extended exposure to 1500 mu mol photons m(-2) S-1; however, above 30 degrees C, photosynthetic activity declined rapidly. Prolonged exposure to high temperature sharply depressed photosynthesis, and extended exposure to 40 degrees C was more detrimental to photosynthesis than exposure to 30 degrees C. Moreover, photosynthesis of receptacles was more susceptible to heat than photosynthesis in blades. Following 15 min at 40 degrees C, receptacle photosynthesis declined to 28% of initial value and recovered to only 60% of initial value within 1 h in recovery conditions. However, after 30 min at 40 degrees C, receptacle photosynthesis did not recover within 4 h, suggesting that the photosynthetic apparatus had suffered irreversible injury. Respiration was not affected by high temperature. Our study shows that high temperature but not high light stress might hamper sexual reproduction in H. fusiformis.
部门归属[Zou, Dinghui; Ji, Zhiwei] South China Univ Technol, Sch Environm & Energy, Guangzhou 510006, Guangdong, Peoples R China; [Zou, Dinghui] Minist Educ, Key Lab Pollut Control & Ecosyst Restorat Ind Clu, Guangzhou 510006, Guangdong, Peoples R China; [Chen, Weizhou] Shantou Univ, Sci Ctr, Marine Biol Inst, Shantou 515063, Guangdong, Peoples R China; [Li, Gang] Chinese Acad Sci, South China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China
学科领域Plant Sciences ; Marine & Freshwater Biology
关键词[WOS]High light ; High temperature ; Hizikia fusiformis ; Photosynthesis ; Receptacles ; Sexual reproduction ; Stress
资助项目LMB
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/17024
专题中科院海洋生物资源可持续利用重点实验室
通讯作者dhzou@scut.edu.cn
推荐引用方式
GB/T 7714
Zou, DH,Ji, ZW,Chen, WZ,et al. High temperature stress might hamper the success of sexual reproduction in Hizikia fusiformis from Shantou, China: a photosynthetic perspective[J]. PHYCOLOGIA,2018,57(4):394-400.
APA Zou, DH,Ji, ZW,Chen, WZ,Li, G,&dhzou@scut.edu.cn.(2018).High temperature stress might hamper the success of sexual reproduction in Hizikia fusiformis from Shantou, China: a photosynthetic perspective.PHYCOLOGIA,57(4),394-400.
MLA Zou, DH,et al."High temperature stress might hamper the success of sexual reproduction in Hizikia fusiformis from Shantou, China: a photosynthetic perspective".PHYCOLOGIA 57.4(2018):394-400.
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