| 环境因子对浒苔生长及生源硫释放的影响 |
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| 引用本文： | 谭婷婷,刘春颖,刘涛,许高宾,张磊,邓雪,陆小兰.环境因子对浒苔生长及生源硫释放的影响[J].海洋与湖沼,2018,49(4):793-801. |
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| 作者姓名： | 谭婷婷 刘春颖 刘涛 许高宾 张磊 邓雪 陆小兰 |
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| 作者单位： | 中国海洋大学海洋化学理论与工程技术教育部重点实验室;青岛海洋科学与技术国家实验室海洋生态与环境科学功能实验室;中国海洋大学生命学院 |
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| 基金项目： | 国家自然科学基金项目，41676065号；中央高校基本科研业务费专项，201762032号；国家重点研发计划，2016YFA0601301号，2016YFC1402101号；青岛市民生科技计划，15-8-2-4-hy号。 |
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| 摘 要： | 近年来,我国黄海海域大规模暴发的绿潮现象对海洋生态环境和海水中的物质迁移转化产生了重要影响。而浒苔作为绿潮暴发过程中的主要藻类,是释放二甲基硫(DMS)的优势藻类,其对海水中硫酸盐吸收转化及生源硫释放发挥着重要作用。本文通过实验室培养探讨了温度、盐度及不同形态氮营养盐对浒苔生长及释放生源硫化物的影响。结果表明,在实验范围内(盐度为25—35,温度为20—25°C),盐度对浒苔生长无明显影响,但盐度增加会促进β-二甲基巯基丙酸内酯(DMSP)的合成。在温度为20°C盐度为35时,DMSP释放达到最大值。温度增加能够促进浒苔的增长,在培养第5天,25°C下浒苔湿重比20°C增加了25%左右。培养液中的DMS含量为20nmol/L左右,约是正常黄海水的4倍,DMSP的浓度更是高于正常海水的数十倍。增加无机氮浓度会促进浒苔的生长及DMS和DMSP的释放,相比之下,NH4+-N比NO3–-N更易被浒苔吸收利用,添加两种氮源组DMS和DMSP的最高含量均比空白组高60%和30%左右。DMS/DMSP的值在10%以内变化,培养过程中DMSP表观降解比AA(丙烯酸)/(AA+DMSP)总体上低于40%。
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| 关 键 词： | 浒苔 生长 环境因子 二甲基硫(DMS) β-二甲基巯基丙酸内酯(DMSP) |
| 收稿时间： | 2017/12/14 0:00:00 |
| 修稿时间： | 2018/5/12 0:00:00 |
INFLUENCE OF ENVIRONMENTAL FACTORS ON GROWTH OF ULVA PROLIFERA AND ITS BIOGENIC SULFUR RELEASE |
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| TAN Ting-Ting,LIU Chun-Ying,LIU Tao,XU Gao-Bin,ZHANG Lei,DENG Xue and LU Xiao-Lan.INFLUENCE OF ENVIRONMENTAL FACTORS ON GROWTH OF ULVA PROLIFERA AND ITS BIOGENIC SULFUR RELEASE[J].Oceanologia Et Limnologia Sinica,2018,49(4):793-801. |
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| Authors: | TAN Ting-Ting LIU Chun-Ying LIU Tao XU Gao-Bin ZHANG Lei DENG Xue and LU Xiao-Lan |
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| Institution: | Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Qingdao 266100, China;Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China,Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Qingdao 266100, China;Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China,College of Marine Life Sciences, Ocean University of China, Qingdao 266071, China,Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Qingdao 266100, China,College of Marine Life Sciences, Ocean University of China, Qingdao 266071, China,Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Qingdao 266100, China;Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China and Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Qingdao 266100, China;Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China |
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| Abstract: | |
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| Keywords: | Ulva prolifera growth environmental factors dimethylsulfide (DMS) dimethylsulfoniopropionate (DMSP) |
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