Comment on “The complex effects of ocean acidification on the prominent N 2 -fixing cyanobacterium Trichodesmium ”

Comment on “The complex effects of ocean acidification on the prominent N 2 -fixing cyanobacterium Trichodesmium ”
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评论 – 海洋酸化对重要的 N 2 固定蓝藻 Trichodesmium 的复杂影响 –

DOI:
10.1126/science.aao0067
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发表时间:
2017
期刊:
影响因子:
56.9
通讯作者:
Webb, Eric A.
Webb, Eric A.
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Hutchins, David A.;Fu, Feixue;Walworth, Nathan G.;Lee, Michael D.;Saito, Mak A.;Webb, Eric A.

文献摘要

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Honget等人(报告,2017年5月5日,第527页)指出,先前对具有重要地球化学意义的海洋蓝细菌Trichodesmium的研究表明,在预计的未来高CO2水平下,其生长和固氮能力会增加,但会受到氨或铜毒性的影响。他们报告说,当污染减轻时,这些比率反而在高CO2下下降。我们提出并讨论了多项已发表的研究结果,反驳了这一毒性假设。
Honget al. (Reports, 5 May 2017, p. 527) suggested that previous studies of the biogeochemically significant marine cyanobacteriumTrichodesmiumshowing increased growth and nitrogen fixation at projected future high CO2levels suffered from ammonia or copper toxicity. They reported that these rates instead decrease at high CO2when contamination is alleviated. We present and discuss results of multiple published studies refuting this toxicity hypothesis.