| EFFECTS OF CO—CULTURE AND SALINITY ON THE GROWTH AND AGAR YIELD OF GRACILARIA TENUISTIPITATA VAR LIUI ZHANG ET XIA |
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| 引用本文： | 贺丽虹,吴汪黔生,钱培元,朱明远.EFFECTS OF CO—CULTURE AND SALINITY ON THE GROWTH AND AGAR YIELD OF GRACILARIA TENUISTIPITATA VAR LIUI ZHANG ET XIA[J].中国海洋与湖沼学报,2002,20(4):365-370. |
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| 作者姓名： | 贺丽虹 吴汪黔生 钱培元 朱明远 |
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| 作者单位： | [1]FirstInstituteofOceanology,StateOceanicAdministration,266071,Qingdao,China [2]HongkongUniversityofScienceandTechnology,Hongkong,China [3]SuzhouUniversity,Suzhou215006,China |
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| 摘 要： | Gracilaria tenuistipitata var Liui were mono-cultivated and co-cultivated with Pinctada martensii under high(33) and low(21) salinity conditions in laboratory.The daily growth rate of the alga was determined.Tissue carbon and nitrogen contents,the yield and fractional composition of agar were analyzed.Results showed that:1.Gracilaria grew better under low salinity conditions,the daily growth rate was twice that under high salinity conditions.Co-cultivated algae grew faster than mono-culti-vated algae under low salinity conditions,the daily growth rate was about 37.6?higher.2.Compared with mono-cultivated algae,tissue nitrogen contents of co-cultivated algae were higher,while the C:N ratios were much lower.3.The agar yields of co-cultivated algae were much lower than those of mono-culti-vated algae.Agar yield was found to be negatively correlated to the tissue nitrogen contents,and positively correlated to the C:N ratios.4.The highest fractional yields obtained from co-cultivated algae were extracted with 40?ethanol,while from mono-cultivated algae,the highest fractional yields obtained were extracted with distilled water at room temperature.
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| 关 键 词： | 盐度 海藻 江蓠 珠母贝 共培养 生长速率 碳氮含量 琼脂含量 |
| 收稿时间： | 5 September 2001 |
| 修稿时间： | 9 May 2002 |
Effects of co-culture and salinity on the growth and agar yield of<Emphasis Type="Italic">Gracilaria tenuistipitata</Emphasis> var<Emphasis Type="Italic">liui</Emphasis> Zhang<Emphasis Type="Italic">et</Emphasis> Xia |
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| He?Li-hong,Wu?Madeline,Qian?Pei-yuan,Zhu?Ming-yuan.Effects of co-culture and salinity on the growth and agar yield ofGracilaria tenuistipitata varliui Zhanget Xia[J].Chinese Journal of Oceanology and Limnology,2002,20(4):365-370. |
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| Authors: | He Li-hong Wu Madeline Qian Pei-yuan Zhu Ming-yuan |
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| Institution: | (1) Suzhou University, 215006 Suzhou, China;(2) Hongkong University of Science and Technology, Hongkong, China;(3) First Institute of Oceanology, State Oceanic Administration, 266071 Qingdao, China |
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| Abstract: | Gracilaria tenuistipitata varLiui were mono-cultivated and co-cultivated withPinctada martensii under high (33) and low (21) salinity conditions in laboratory. The daily growth rate of the alga was determined. Tissue
carbon and nitrogen contents, the yield and fractional composition of agar were analyzed. Results showed that: 1.Gracilaria grew better under low salinity conditions, the daily growth rate was twice that under high salinity conditions. Co-cultivated
algae grew faster than mono-cultivated algae under low salinity conditions, the daily growth rate was about 37.6% higher.
2. Compared with mono-cultivated algae, tissue nitrogen contents of co-cultivated algae were higher, while the C:N ratios
were much lower. 3. The agar yields of co-cultivated algae were much lower than those of mono-cultivated algae. Agar yield
was found to be negatively correlated to the tissue nitrogen contents, and positively correlated to the C:N ratios. 4. The
highest fractional yields obtained from co-cultivated algae were extracted with 40% ethanol, while from mono-cultivated algae,
the highest fractional yields obtained were extracted with distilled water at room temperature.
Project No. 3927014 supported by NSFC. |
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| Keywords: | co-culture salinity agar Gracilaria tenuistipitata varliui |
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