Grazing on toxic cyanobacterial blooms by tadpoles of edible frog Rana grylio
文献类型：期刊论文
| 作者 | Zhang, Xiaoming1; Song, Lirong2; Zhang, Pengcheng1; He, Jiawan2; Liu, Yongding2; Matsuura, Hiroshi1; Watanabe, Makoto M.1 |
| 刊名 | PHYCOLOGICAL RESEARCH
 |
| 出版日期 | 2012 |
| 卷号 | 60期号:1页码:20-26 |
| 关键词 | blue-green algae cyanobacterial bloom grazing microcystin Microcystis pond tadpole trophic relationship |
| ISSN号 | 1322-0829 |
| 通讯作者 | Zhang, XM (reprint author), Univ Tsukuba, Grad Sch Life & Environm Sci, Tsukuba, Ibaraki, Japan |
| 中文摘要 | Tadpoles of Rana grylio were raised as edible frogs in fishponds of Guanqiao in Wuhan City, Hubei, China, during cyanobacterial blooms from June to October. The dominant cyanobacterial species was Microcystis, which was found to be lethally toxic by intraperitoneal (i.p.) mouse bioassay. Little is known about the effect of tadpoles on toxic cyanobacterial blooms. To evaluate the potential of the tadpoles to graze on cyanobacterial blooms, the tadpoles were fed on Microcystis collected from the field in the laboratory. The Microcystis cells decreased from 1.19 x 107 cells mL-1 to 3.23 x 106 cells mL-1, with a sharp reduction of 73% of the initial Microcystis population observed in the first 24 h after introduction of the tadpoles. The ponds containing tadpoles had a markedly lower density of Microcystis than those lacking tadpoles. Tadpoles exposed to either cultured Microcystis aeruginosa (NIES-90, 2.768 mu g microcystins mg1 dw1) cells or lysed M. aeruginosa cells grew well, however, indicating that they were unaffected by Microcystis toxins. We found a significant increase in tadpole body weight after feeding on either field Microcystis or cultured M. aeruginosa. The mean increase in individual body weight was 20 mg day-1 when fed on Microcystis from the pond, and 7 mg day-1 when fed on M. aeruginosa from culture. Our study strongly suggested that there is a direct trophic relationship between R. grylio tadpoles and toxic Microcystis blooms and they possess the potential to graze on toxic Microcystis. The results imply that R. grylio tadpoles may play an important ecological role in reducing toxic cyanobacterial blooms caused by Microcystis. |
| 英文摘要 | Tadpoles of Rana grylio were raised as edible frogs in fishponds of Guanqiao in Wuhan City, Hubei, China, during cyanobacterial blooms from June to October. The dominant cyanobacterial species was Microcystis, which was found to be lethally toxic by intraperitoneal (i.p.) mouse bioassay. Little is known about the effect of tadpoles on toxic cyanobacterial blooms. To evaluate the potential of the tadpoles to graze on cyanobacterial blooms, the tadpoles were fed on Microcystis collected from the field in the laboratory. The Microcystis cells decreased from 1.19 x 107 cells mL-1 to 3.23 x 106 cells mL-1, with a sharp reduction of 73% of the initial Microcystis population observed in the first 24 h after introduction of the tadpoles. The ponds containing tadpoles had a markedly lower density of Microcystis than those lacking tadpoles. Tadpoles exposed to either cultured Microcystis aeruginosa (NIES-90, 2.768 mu g microcystins mg1 dw1) cells or lysed M. aeruginosa cells grew well, however, indicating that they were unaffected by Microcystis toxins. We found a significant increase in tadpole body weight after feeding on either field Microcystis or cultured M. aeruginosa. The mean increase in individual body weight was 20 mg day-1 when fed on Microcystis from the pond, and 7 mg day-1 when fed on M. aeruginosa from culture. Our study strongly suggested that there is a direct trophic relationship between R. grylio tadpoles and toxic Microcystis blooms and they possess the potential to graze on toxic Microcystis. The results imply that R. grylio tadpoles may play an important ecological role in reducing toxic cyanobacterial blooms caused by Microcystis. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Marine & Freshwater Biology |
| 研究领域[WOS] | Marine & Freshwater Biology |
| 关键词[WOS] | BLUE-GREEN-ALGAE ; CARP HYPOPHTHALMICHTHYS-MOLITRIX ; MICROCYSTIS-AERUGINOSA ; OREOCHROMIS-NILOTICUS ; CENTRAL CHINA ; NONTOXIC STRAINS ; PEPTIDE ; LARVAE ; FISH ; LAKE |
| 收录类别 | SCI |
| 资助信息 | K. C. Wang Education Foundation, Hong Kong, Chinese Academy of Sciences; Japanese Government, Science and Technology Agency |
| 语种 | 英语 |
| WOS记录号 | WOS:000299101300002 |
| 公开日期 | 2012-04-01 |
| 源URL | [http://ir.ihb.ac.cn/handle/342005/16779]  |
| 专题 | 水生生物研究所_藻类生物学及应用研究中心_期刊论文 |
| 作者单位 | 1.Univ Tsukuba, Grad Sch Life & Environm Sci, Tsukuba, Ibaraki, Japan 2.Chinese Acad Sci, Inst Hydrobiol, Wuhan, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Xiaoming,Song, Lirong,Zhang, Pengcheng,et al. Grazing on toxic cyanobacterial blooms by tadpoles of edible frog Rana grylio[J]. PHYCOLOGICAL RESEARCH,2012,60(1):20-26. |
| APA | Zhang, Xiaoming.,Song, Lirong.,Zhang, Pengcheng.,He, Jiawan.,Liu, Yongding.,...&Watanabe, Makoto M..(2012).Grazing on toxic cyanobacterial blooms by tadpoles of edible frog Rana grylio.PHYCOLOGICAL RESEARCH,60(1),20-26. |
| MLA | Zhang, Xiaoming,et al."Grazing on toxic cyanobacterial blooms by tadpoles of edible frog Rana grylio".PHYCOLOGICAL RESEARCH 60.1(2012):20-26. |
入库方式： OAI收割
来源：水生生物研究所
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