Widespread iron limitation of phytoplankton in the South Pacific Ocean
Widespread iron limitation of phytoplankton in the South Pacific Ocean
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DOI：
10.1126/science.283.5403.840
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发表时间：
1999-02-05
期刊：
影响因子：
56.9
通讯作者：
Kolber, ZS
中科院分区：
文献类型：
--
作者：
Behrenfeld, MJ;Kolber, ZS
在南太平洋7000多公里的浮游植物样本中发现了饮食荧光模式，这似乎表明铁限制生长条件。这些模式在原位铁富集后迅速消失，并且在铁浓度相对较高的大西洋15，000公里的样带中没有观察到。海洋聚球藻的实验室研究表明，在南太平洋的模式是一个独特的表现铁限制状态转换的荧光签名。结果表明，初级生产力是铁有限的，不仅在整个赤道太平洋，但也超过了广大的南太平洋环流。
Diet fluorescence patterns were discovered in phytoplankton sampled over 7000 kilometers of the South Pacific Ocean that appear indicative of iron-limiting growth conditions. These patterns were rapidly Lost after in situ iron enrichment and were not observed during a 15,000-kilometer transect in the Atlantic Ocean where iron concentrations are relatively high. Laboratory studies of marine Synechococcus sp, indicated that the patterns in the South Pacific are a unique manifestation of iron limitation on the fluorescence signature of state transitions. Results suggest that primary productivity is iron limited not only throughout the equatorial Pacific but also over much of the vast South Pacific gyre.