| 温度和营养盐胁迫对龙须菜氨氮吸收速率及生长速率的影响 |
| Effects of Stress of Temperature and Nutrients on Ammonia Nitrogen Uptake Rate and Growth Rate of Gracilaria lemaneiformis |
| 投稿时间：2011-10-11 修订日期：2011-11-16 |
| DOI： |
| 中文关键词:龙须菜 温度 营养盐 氨氮吸收速率 生长速率 |
| 英文关键词:Gracilaria lemaneiformis temperature nutrients ammonia nitrogen uptake rate growth rate |
| 基金项目: 国家自然科学基金(31000240);农业部渔业生态环境重点开放实验室课题(2005-10);广东高校优秀青年创新人才培育项目(LYM08020);暨南大学人科研培育与创新基金(21609411;21611428) |
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| 中文摘要: |
| 以龙须菜(Gracilaria lemaneiformis)为试验材料,分别研究了温度和营养盐协迫对其生长及氨氮吸收速率的影响。结果表明,2个环境因子对龙须菜生长和吸收氨氮速率均有显著影响。龙须菜在20℃条件下生长较其在10℃和30℃条件下生长快速(P<0.01);营养盐含量过高和过低均不利于龙须菜的生长;营养盐水平越高,龙须菜吸收氨氮的速率越高(P<0.05),但随着试验时间的延长,则呈现出氨氮吸收速率减小的趋势。鉴于龙须菜对氨氮的高吸收能力,可考虑将其作为富营养化海域的生物修复材料。 |
| 英文摘要: |
| The combined effects of temperature and nutrient levels on the uptake of NH4+-N and the growth rate of Gracilaria lemaneiformis were studied indoors. The results showed that both of the two environmental factors had significant effects on the uptake rate of NH4+-N and growth rate of G. lemaneiformis. The G. lemaneiformis growth was rapider at the temperature 0f 20℃ than that at both 10℃ and 30℃ (P<0.01)，and furthermore，excessively high and low nutrient levels were not conductive to the growth of G. lemaneiformis . The uptake of NH4+-N was positively related to the nutrients levels(P<0.05)，while the uptake of NH4+-N of G. lemaneiformis exhibited a decreasing trend with the culture time extending. Considering its high capacity of absorbing nitrogen，G. lemaneiformis be employed as potential bioremediation tools in eutrophication zones.
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| 赵建刚,叶长鹏.2011.温度和营养盐胁迫对龙须菜氨氮吸收速率及生长速率的影响[J].水生态学杂志,32(6):57-60. |
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