[The inhibitory effect of Hydrilla verticillata culture water on Microcystic aeruginosa and its mechanism].
Zhi Wu Sheng Li Yu Fen Zi Sheng Wu Xue Xue Bao
; 32(6): 672-8, 2006 Dec.
Article
em Zh
| MEDLINE
| ID: mdl-17167204
ABSTRACT
This paper studied on the effect and mechanism that the growth of M. aerugonsa was markedly inhibited by the H. verticillata culture water. During treatment, the photosynthetic rate of M. aerugonsa declined, while its respiratory rate and SOD activity increased firstly, then decreased as the treatment went on. Its membrane permeability also increased significantly. TEM photographs showed that the ultrastructure of cell membrane, thylakoid lamella and pith nucleoid of M. aerugonsa were destroyed severely. Inhibitory effects could be observed only when the extracts were extracted by ether. The more extracts from ether, the better inhibitory effect observed. It suggested that the inhibitory effects of H. verticillata on M. aeruginosa were through excreting substances into water. GC/MS analytic result showed that the ether extract mainly consisted of 1,2-benzenedicarboxylic acid diisooctyl ester, dibutyl phthalate, and 1,2-benzenedicarboxylic acid butyl 2-methylpropyl ester.
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Base de dados:
MEDLINE
Assunto principal:
Fotossíntese
/
Cianobactérias
/
Hydrocharitaceae
Idioma:
Zh
Ano de publicação:
2006
Tipo de documento:
Article