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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences >
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Significance of Mn and Fe for growth of coastal marine diatom Thalassiosira weissflogii
| Title: | Significance of Mn and Fe for growth of coastal marine diatom Thalassiosira weissflogii |
| Authors: | Ushizaka, Satomi Browse this author | | Sugie, Kohji Browse this author | | Yamada, Masumi Browse this author | | Kasahara, Mariko Browse this author | | Kuma, Kenshi Browse this author →KAKEN DB |
| Keywords: | Coastal marine diatom | | Iron | | Manganese | | Maximal cell yields | | Specific growth rate | | Thalassiosira weissflogii |
| Issue Date: | Sep-2008 |
| Publisher: | Japanese Society of Fisheries Science |
| Journal Title: | Fisheries science |
| Volume: | 74 |
| Issue: | 5 |
| Start Page: | 1137 |
| End Page: | 1145 |
| Publisher DOI: | 10.1111/j.1444-2906.2008.01633.x |
| Abstract: | The significance of Mn and Fe for the growth of a coastal marine diatom Thalassiosira weissflogii was investigated by performing culture experiments containing macronutrients with either Mn or Fe, or both. Only the addition of both Mn and Fe induced the highest growth rates and maximal cell yields. Maximal growth was maintained in continuous culture media, which were repeatedly prepared by an inoculation of pre-culture and the addition of both Mn and Fe to the control culture medium containing macronutrients. In particular, it was found that the full growth recovery in Mn-sufficient medium (without added Fe) is accomplished by the addition of Fe even after several days' incubation. On the contrary, there was no sufficient growth recovery by the addition of Mn after a long incubation time in Fe-sufficient medium but without additional Mn. These results suggest that T. weissflogii in Mn-sufficient waters retains the ability for full physiological recovery for a long time, probably resulting from the decrease in the oxidative stress of phytoplankton by the production of antioxidant enzyme Mn superoxide dismutase during a long incubation period. |
| Rights: | © 2008 公益社団法人日本水産学会 | | © 2008 The Japanese Society of Fisheries Science |
| Type: | article |
| URI: | http://hdl.handle.net/2115/53364 |
| Appears in Collections: | 水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 久万 健志
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