Interactions between a cyanobacterial bloom (<Emphasis Type="Italic">Microcystis</Emphasis>) and the submerged aquatic plant <Emphasis Type="Italic">Ceratophyllum oryzetorum</Emphasis> Kom. |
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| Authors: | Dunhai Li Genbao Li Wuxiong Chen Yongding Liu |
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| Institution: | (1) State key laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China |
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| Abstract: | In aquatic ecosystems, macrophytes and phytoplankton are main primary producers, in which macrophyte plays an important role
in maintaining clear water state, while phytoplankton often dominates in turbid waterbodies. In the present study, the growth
and photosynthetic activity of the submerged aquatic plant Ceratophyllum oryzetorum Kom. in different cell densities of cyanobacterial bloom are studied. The results show that the plant length and fresh mass
of C. oryzetorum are promoted by low cyanobacterial cell densities. Medium and high cyanobacterial cell densities, on the contrary, act as
inhibitory. Furthermore, the photosynthetic activity of C. oryzetorum is strongly inhibited by high cyanobacterial cell densities. To a certain extent, the growth of cyanobacteria is inhibited
by C. oryzetorum, but no significant effect is found in this study.
Supported by the Innovation Project of CAS (No.KZCX2-YW-426), a Provincial Project of Hubei (No. 2006AA305A0402) and the National
Basic Research Program of China (973 Program, No. 2002CB 412306) |
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| Keywords: | Keyword" target="_blank">Keyword Cyanobacterial bloom Ceratophyllum oryzetorum Kom submerged plant photosynthetic activity interaction |
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