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首页> 外文期刊>Journal of oceanography >Effects of warming on microbial communities in the coastal waters of temperate and subtropical zones in the Northern Hemisphere, with a focus on Gammaproteobacteria
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Effects of warming on microbial communities in the coastal waters of temperate and subtropical zones in the Northern Hemisphere, with a focus on Gammaproteobacteria

机译：气候变暖对北半球温带和亚热带带沿海水域微生物群落的影响，重点是γ-变形杆菌

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摘要

We examined the effect of warming on microbes in coastal waters in temperate and subtropical zones, Suruga Bay in Japan and Ha Long Bay in Viet Nam, respectively. Incubation of intact communities (500 mL each) at temperatures three or five degrees higher than the in-situ temperatures enhanced both the abundance and growth rate of prokaryotes. We also conducted size frac-tionation and dilution experiments to elucidate whether this behavior was the result of an increased rate of reproduction ("bottom-up" effect) or reduced mortality ("top-down" effect). For two of the five cases analyzed, enhancement of the growth rate could be ascribed to the bottom-up effect of the warming. For two other cases it could be ascribed to the top-down effect, irrespective of whether or not warming enhanced the bottom-up effect. The effect of warming was not clearly apparent for prokaryotes of subtropical coastal waters, where the in-situ temperature was nearly 30 ℃. Among the prokaryotes, Gammaproteobacteria tended to predominate as a result of warming. These results suggest that warming may affect microbial growth even in subtropical coastal waters in some seasons and that the response of Gammaproteobacteria to warming of temperate and subtropical coastal waters is among the most rapid.
机译：我们分别研究了变暖对温带和亚热带沿海地区微生物的影响，分别是日本的骏河湾和越南的下龙湾。在比原位温度高三到五度的温度下孵育完整的群落（每个500毫升）可提高原核生物的丰度和生长速率。我们还进行了大小粉碎和稀释实验，以阐明这种行为是繁殖率提高（“自下而上”效应）还是死亡率降低（“自上而下”效应）的结果。对于所分析的五种情况中的两种，增长率的提高可归因于变暖的自下而上效应。对于另外两种情况，可以归因于自上而下的效果，而与变暖是否增强了自下而上的效果无关。在原位温度接近30℃的亚热带沿海水域的原核生物中，变暖的影响并不明显。在原核生物中，由于变暖，γ-变形杆菌倾向于占主导地位。这些结果表明，即使在某些季节中，变暖甚至会影响亚热带沿海水域中的微生物生长，并且伽玛变形杆菌对温带和亚热带沿海水域变暖的响应是最快的。

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  • 来源
    《Journal of oceanography》 |2015年第1期|91-103|共13页
  • 作者

    Dao Thi Anh Tuyet; Toshinari Tanaka; Rumi Sohrin; Do Manh Hao; Kazuyo Nagaosa; Kenji Kato;

  • 作者单位

    Graduate School of Science and Technology, Shizuoka University, 836 Oya, Suruga-ward, Shizuoka 422-8529, Japan,Institute of Marine Environment and Resources, Vietnamese Academy of Science and Technology, No 246 Da Nang street, Ngo Quyen District, Hai Phong, Vietnam;

    Graduate School of Science, Shizuoka University, 836 Oya, Suruga-ward, Shziuoka 422-8529, Japan;

    Graduate School of Science, Shizuoka University, 836 Oya, Suruga-ward, Shziuoka 422-8529, Japan;

    Institute of Marine Environment and Resources, Vietnamese Academy of Science and Technology, No 246 Da Nang street, Ngo Quyen District, Hai Phong, Vietnam;

    Graduate School of Science, Shizuoka University, 836 Oya, Suruga-ward, Shziuoka 422-8529, Japan;

    Graduate School of Science and Technology, Shizuoka University, 836 Oya, Suruga-ward, Shizuoka 422-8529, Japan,Graduate School of Science, Shizuoka University, 836 Oya, Suruga-ward, Shziuoka 422-8529, Japan;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Warming; Temperate and subtropical zones; Coastal water; Bottom-up; Top-down; Gammaproteobacteria;

    机译：变暖;温带和亚热带地区;沿海水;自下而上;自顶向下;γ-变形杆菌;

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