文献类型：期刊文献

中文题名：氮磷对珊瑚过氧化氢酶和超氧化物歧化酶活性的影响

英文题名：Nitrogen and Phosphorus Affecting Activities of Catalase and Superoxide Dismutase in Coral

作者：晁华[1];申玉春[1];刘丽[1]

机构：[1]广东海洋大学水产学院,湛江市海洋生态与养殖环境重点实验室,广东湛江524025

年份：2016

卷号：32

期号：17

起止页码：12

中文期刊名：中国农学通报

外文期刊名：Chinese Agricultural Science Bulletin

收录：CSTPCD

基金：广东省普通高校省级重大科研项目“北部湾近岸典型生态系统对人为活动响应的评价与预警技术”(GDOU2013050219);湛江市财政资金科技专项“湛江市海洋生态与养殖环境重点实验室”(2015A06006)

语种：中文

中文关键词：氮;磷;过氧化氢酶;超氧化物歧化酶;珊瑚

外文关键词：nitrogen; phosphorus; catalase; superoxide dismutase; coral

中文摘要：为研究不同浓度硝酸盐、铵盐和磷酸盐对斯氏角孔珊瑚、二异角孔珊瑚和澄黄滨珊瑚CAT和SOD活性的影响,设置硝酸盐、铵盐和磷酸盐高、中、低3种试验浓度对斯氏角孔珊瑚、二异角孔珊瑚和澄黄滨珊瑚分别进行8周的养殖观察。结果表明:斯氏角孔珊瑚以中等硝酸盐和铵盐浓度组CAT活性最高,高浓度磷酸盐组CAT活性高;以高浓度硝酸盐和磷酸盐组SOD活性最高,中等浓度铵盐组SOD活性最高。二异角孔珊瑚以中等浓度硝酸盐、铵盐和磷酸盐CAT活性最高;以中等浓度硝酸盐、铵盐组SOD活性最高,以高浓度磷酸盐组SOD活性最高。澄黄滨珊瑚以对照组CAT和SOD活性最高,说明澄黄滨珊瑚对营养盐的耐受性差。珊瑚CAT和SOD活性均出现峰值,与其他时间点比较差异显著(P<0.05),是珊瑚在营养盐胁迫下从适应到中毒反应的临界值,说明珊瑚是可以间接评价海洋环境营养盐富集程度的指示生物。

外文摘要：To study the effects of nitrogen and phosphorus on the activities of catalase（CAT） and superoxidedismutase（SOD） in Goniopora stutchburyi, Goniopora duofasciata and Porites lutea, nitrate, ammonium andphosphate were used to conduct the experiments. The concentrations of the above nutrients were set to be inlow, medium and high level, respectively, and the cultivation of the corals lasted for 8 weeks. The resultsshowed that in G. stutchburyi, activity of CAT was the highest when G. stutchburyi was exposed to medium levelof nitrate and ammonium and high level of phosphate; activity of SOD was the highest when G. stutchburyi wasexposed to high level of nitrate and phosphate and medium level of ammonium. In G. duofasciata, activity ofCAT was the highest when G. duofasciata was exposed to medium level of nitrate, ammonium and phosphate;activity of SOD was the highest when G. duofasciata was exposed to medium level of nitrate and ammonium andhigh level of phosphate. In P. Lutea, activities of CAT and SOD were the highest in the control group,indicating its poor tolerance to the above three nutrients. Activities of CAT and SOD in G. stutchburyi, G.duofasciata and P. lutea all had peak values, which had significant differences with that of other different timepoints（P〈0.05）. The peak value was the critical value for coral changing from adaptation to toxic reactionunder nutrient stress, indicating that corals could be the indirect indicator organism for evaluating the nutrientenrichment degree of marine environment.