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Department of Marine Ecology College of Marine Life Sciences Ocean University of China
网络首发:2015-07-01,
纸质出版:2016
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Antioxidant system responses in two co-occurring green-tide algae under stress conditions[J]. 海洋湖沼学报(英文), 2016,34(1):102-108.
Wang, Y., Zhao, X. & Tang, X. Antioxidant system responses in two co-occurring green-tide algae under stress conditions., Chin. J. Ocean. Limnol. 34, 102–108 (2016). https://doi.org/10.1007/s00343-015-4351-z
Antioxidant system responses in two co-occurring green-tide algae under stress conditions[J]. 海洋湖沼学报(英文), 2016,34(1):102-108. DOI: 10.1007/s00343-015-4351-z.
Wang, Y., Zhao, X. & Tang, X. Antioxidant system responses in two co-occurring green-tide algae under stress conditions., Chin. J. Ocean. Limnol. 34, 102–108 (2016). https://doi.org/10.1007/s00343-015-4351-z DOI:
Green tides have occurred every year from 2007 to 2014 in the Yellow Sea. Ulva prolifera (Müller) J. Agardh has been identified as the bloom-forming alga
co-occurring with U. intestinalis. We observed distinct strategies for both algal species during green tides. U. prolifera exhibited a high abundance initially and then decreased dramatically
while U. intestinalis persisted throughout. The antioxidant system responses of these two macroalgae were compared in the late phase of a green tide (in-situ) and after laboratory acclimation. Lipid peroxidation and antioxidant system responses differed significantly between the two. Malondialdehyde and hydrogen peroxide contents increased significantly in-situ in U. prolifera
but not in U. intestinalis. In U. prolifera
we observed a significant decrease in total antioxidant ability (T-AOC)
antioxidant enzymes (SOD and Apx)
and non-enzyme antioxidants (GSH and AsA) in-situ. U. intestinalis showed the same pattern of T-AOC and SOD
but its Gpx
Apx
and GSH responses did not differ significantly. The results suggest that U. prolifera was more susceptible than U. intestinalis to the harsh environmental changes during the late phase of a Yellow Sea green tide. The boom and bust strategy exhibited by U. prolifera and the persistence of U. intestinalis can be explained by differences in enzyme activity and antioxidant systems.
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