Effects of solar UV radiation on germination of conchospores and morphogenesis of sporelings in Porphyra haitanensis (Rhodophyta)
文献类型：期刊论文
| 作者 | Jiang, Hongxia; Gao, Kunshan; Helbling, E. Walter |
| 刊名 | MARINE BIOLOGY
 |
| 出版日期 | 2007-06-01 |
| 卷号 | 151期号:5页码:1751-1759 |
| 关键词 | ULTRAVIOLET-B RADIATION INDUCED DNA-DAMAGE ULVA-PERTUSA CHLOROPHYTA LIFE-HISTORY STAGES PHOTOSYNTHETIC PERFORMANCE MARINE MACROALGAE DEPTH ZONATION AMINO-ACIDS GROWTH TEMPERATURE |
| ISSN号 | 0025-3162 |
| 通讯作者 | Gao, KS, Shantou Univ, Inst Marine Biol, Shantou 515063, Guangdong, Peoples R China |
| 中文摘要 | The effects of ultraviolet radiation (UVR 280-400 nm) on the germination of Porphyra haitanensis conchospores and on the growth and morphogenesis of the subsequent sporelings were investigated by culturing the released conchospores under natural sunlight from 29 September to 6 October 2005. Germination increased with time and was faster when UV-B was excluded using cut-off filters. There were significant negative effects of UV-B radiation on growth and cell division of sporelings, with decreases up to 18% for thallus length, between 6 and 18% for thallus width, up to 29% for thallus area, and between 6 and 14% for cell size as compared to PAR-controls. UV-A had a significant positive effect on morphogenesis, enhancing the formation of sporelings with cells dividing transversely; on the other hand, UV-B delayed the formation of such sporelings. We also tested the effects of solar UVR on the growth of P. haitanensis juveniles and found no significant effects. Our results indicate that UV-A has an important role in the germination and morphogenesis of the species, but on the other hand, sporelings of P. haitanensis are more sensitive to UV-B radiation than juveniles. |
| 英文摘要 | The effects of ultraviolet radiation (UVR 280-400 nm) on the germination of Porphyra haitanensis conchospores and on the growth and morphogenesis of the subsequent sporelings were investigated by culturing the released conchospores under natural sunlight from 29 September to 6 October 2005. Germination increased with time and was faster when UV-B was excluded using cut-off filters. There were significant negative effects of UV-B radiation on growth and cell division of sporelings, with decreases up to 18% for thallus length, between 6 and 18% for thallus width, up to 29% for thallus area, and between 6 and 14% for cell size as compared to PAR-controls. UV-A had a significant positive effect on morphogenesis, enhancing the formation of sporelings with cells dividing transversely; on the other hand, UV-B delayed the formation of such sporelings. We also tested the effects of solar UVR on the growth of P. haitanensis juveniles and found no significant effects. Our results indicate that UV-A has an important role in the germination and morphogenesis of the species, but on the other hand, sporelings of P. haitanensis are more sensitive to UV-B radiation than juveniles. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 学科主题 | Marine & Freshwater Biology |
| 类目[WOS] | Marine & Freshwater Biology |
| 研究领域[WOS] | Marine & Freshwater Biology |
| 关键词[WOS] | ULTRAVIOLET-B RADIATION ; INDUCED DNA-DAMAGE ; ULVA-PERTUSA CHLOROPHYTA ; LIFE-HISTORY STAGES ; PHOTOSYNTHETIC PERFORMANCE ; MARINE MACROALGAE ; DEPTH ZONATION ; AMINO-ACIDS ; GROWTH ; TEMPERATURE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000246614300014 |
| 公开日期 | 2010-10-13 |
| 源URL | [http://ir.ihb.ac.cn/handle/152342/8582]  |
| 专题 | 水生生物研究所_中科院水生所知识产出（2009年前）_期刊论文 |
| 作者单位 | 1.Shantou Univ, Inst Marine Biol, Shantou 515063, Guangdong, Peoples R China 2.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Beijing 430072, Peoples R China 3.Consejo Nacl Invest Cient & Tecn, RA-9103 Rawson, Chubut, Argentina 4.Estac Fotobiol Playa Union, RA-9103 Rawson, Chubut, Argentina |
| 推荐引用方式 GB/T 7714 | Jiang, Hongxia,Gao, Kunshan,Helbling, E. Walter. Effects of solar UV radiation on germination of conchospores and morphogenesis of sporelings in Porphyra haitanensis (Rhodophyta)[J]. MARINE BIOLOGY,2007,151(5):1751-1759. |
| APA | Jiang, Hongxia,Gao, Kunshan,&Helbling, E. Walter.(2007).Effects of solar UV radiation on germination of conchospores and morphogenesis of sporelings in Porphyra haitanensis (Rhodophyta).MARINE BIOLOGY,151(5),1751-1759. |
| MLA | Jiang, Hongxia,et al."Effects of solar UV radiation on germination of conchospores and morphogenesis of sporelings in Porphyra haitanensis (Rhodophyta)".MARINE BIOLOGY 151.5(2007):1751-1759. |
入库方式： OAI收割
来源：水生生物研究所
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