Effects of sand burial on biomass, chlorophyll fluorescence and extracellular polysaccharides of man-made cyanobacterial crusts under experimental conditions
文献类型：期刊论文
| 作者 | Wang WeiBo; Yang CuiYun; Tang DongShan; Li DunHai; Liu YongDing; Hu ChunXiang |
| 刊名 | SCIENCE IN CHINA SERIES C-LIFE SCIENCES
 |
| 出版日期 | 2007-08-01 |
| 卷号 | 50期号:4页码:530-534 |
| 关键词 | Microcoleus vaginatus Gom. man-made cyanobacterial crusts sand burial biomass photosynthetic activity extracellular polysaccharides |
| ISSN号 | 1006-9305 |
| 通讯作者 | Liu, YD, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China |
| 中文摘要 | Soil cyanobacterial crusts occur throughout the world, especially in the semiarid and arid regions. It always encounters sand burial, which is an important feature of mobile sand dunes. A greenhouse 41 study was conducted to determine the effects of sand burial on biomass, chlorophyll fluorescence and extracellular polysaccharides of man-made cyanobacterial crusts in six periods of time (0, 5, 10, 15, 20 and 30 d after burying) and at five depths (0, 0.2, 0.5, 1 and 2cm). The results indicated that with the increase of the burial time and burial depth extracellular polysaccharides content and Fv/Fm decreased correspondingly and there were no significant differences between 20 and 30 burial days under different burial depths. The degradation of chlorophyll a content appeared only at 20 and 30 burial days and there was also no significant difference between them under different burial depths. It was also observed a simultaneous decrease of the values of the Fv/Fm and the content of extracellular polysaccharides happened in the crusted cyanobacterium Microcoleus vaginatus Gom. It may suggest that there exists a relationship between extracellular polysaccharides and recovery of the activity of photosystem II (PS II) after rehydration. |
| 英文摘要 | Soil cyanobacterial crusts occur throughout the world, especially in the semiarid and arid regions. It always encounters sand burial, which is an important feature of mobile sand dunes. A greenhouse 41 study was conducted to determine the effects of sand burial on biomass, chlorophyll fluorescence and extracellular polysaccharides of man-made cyanobacterial crusts in six periods of time (0, 5, 10, 15, 20 and 30 d after burying) and at five depths (0, 0.2, 0.5, 1 and 2cm). The results indicated that with the increase of the burial time and burial depth extracellular polysaccharides content and Fv/Fm decreased correspondingly and there were no significant differences between 20 and 30 burial days under different burial depths. The degradation of chlorophyll a content appeared only at 20 and 30 burial days and there was also no significant difference between them under different burial depths. It was also observed a simultaneous decrease of the values of the Fv/Fm and the content of extracellular polysaccharides happened in the crusted cyanobacterium Microcoleus vaginatus Gom. It may suggest that there exists a relationship between extracellular polysaccharides and recovery of the activity of photosystem II (PS II) after rehydration. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 学科主题 | Biology |
| 类目[WOS] | Biology |
| 研究领域[WOS] | Life Sciences & Biomedicine - Other Topics |
| 关键词[WOS] | CRYPTOBIOTIC CRUSTS ; DESERT ; GERMINATION ; SEEDS ; EMERGENCE ; SEEDLINGS ; DORMANCY |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000249267000015 |
| 公开日期 | 2010-10-13 |
| 源URL | [http://ir.ihb.ac.cn/handle/152342/8466]  |
| 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.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China 2.Grad Univ, Chinese Acad Sci, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang WeiBo,Yang CuiYun,Tang DongShan,et al. Effects of sand burial on biomass, chlorophyll fluorescence and extracellular polysaccharides of man-made cyanobacterial crusts under experimental conditions[J]. SCIENCE IN CHINA SERIES C-LIFE SCIENCES,2007,50(4):530-534. |
| APA | Wang WeiBo,Yang CuiYun,Tang DongShan,Li DunHai,Liu YongDing,&Hu ChunXiang.(2007).Effects of sand burial on biomass, chlorophyll fluorescence and extracellular polysaccharides of man-made cyanobacterial crusts under experimental conditions.SCIENCE IN CHINA SERIES C-LIFE SCIENCES,50(4),530-534. |
| MLA | Wang WeiBo,et al."Effects of sand burial on biomass, chlorophyll fluorescence and extracellular polysaccharides of man-made cyanobacterial crusts under experimental conditions".SCIENCE IN CHINA SERIES C-LIFE SCIENCES 50.4(2007):530-534. |
入库方式： OAI收割
来源：水生生物研究所
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