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Title: Importance of the viral shunt in nitrogen cycling in Synechococcus spp. growth in coastal waters of the subtropical western Pacific
Authors: Yu-Wen Huang
Gwo-Ching Gong
An-Yi Tsai
Contributors: 國立臺灣海洋大學:海洋環境化學與生態研究所
Keywords: Regenerated nitrogen
Synechococcus spp.
Frequency of dividing cells
Date: 2014-12
Issue Date: 2017-02-10T03:53:52Z
Publisher: Terrestrial, Atmospheric & Oceanic Sciences
Abstract: Abstract: Viruses play an important role in aquatic environments in bacteria and phytoplankton mortality and also in carbon and nutrient recycling through the lysis of living cells. However, the effects of nitrogen regenerated by viral lysis on the growth of picophytoplankton are rarely studied. This study investigated whether the presence of viruses has a positive effect on the daytime frequency of cell division in Synechococcus spp. in the coastal waters of the western subtropical Pacific Ocean. Using cell incubation with natural viral loads and reduced virus treatments, we characterized the abundance and frequency of cell division in Synechococcus spp. over time. Our results clearly showed that during the daytime as much as 30% of Synechococcus spp. were dividing in natural virus-containing samples, a proportion six times that found in the virus-diluted treatment groups (5%). These results suggest that viruses can exert significant effects on nutrient regeneration, enhancing daytime cell division rates in Synechococcus spp.
Relation: 25(6)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41225
Appears in Collections:[海洋環境與生態研究所] 期刊論文

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