[Inhibitory effects of Spartina anglica on Heterosigma akashiwo and Prorocenrum micans and the isolation and identification of the algicidal compounds].
Taking Heterosigma akashiwo and Prorocenrum micans as test materials, the algicidal activity of Spartina anglica against the growth of the two harmful microalgae were investigated, with the algicidal compounds isolated and identified. Lower concentration S. anglica stimulated the growth of H. akashiwo, while high concentration S. anglica inhibited the H. akashiwo growth significantly. The lethal concentration of S. anglica fresh tissue, dry powder, and extracts to H. akashiwo was 4.8 mg x ml(-1), 0.8 mg x ml(-1), and 0.5 mg x ml(-1), respectively. All test concentration S. anglica had obvious inhibitory effects on the growth of P. micans, and the lethal concentration of S. anglica fresh material, dry powder, and extracts was 9.6 mg x ml(-1), 1.6 mg x ml(-1), and 1.25 mg x ml(-1), respectively. Two algicidal compounds in S. anglica were isolated, and identified as isohamnetin-3-O-sophoroside-7-O-rhamnoside and syringetin-3-O-galactoside.
Xu
Nian-Jun
NJ
Ministry of Education Key Laboratory of Applied Marine Biotechnology, Faculty of Life Sciences and Biotechnology, Ningbo University, Ningbo 315211, Zhejiang, China. xunianjun@nbu.edu.cn
Tang
Jun
J
Zhang
Ze-Wei
ZW
Yan
Xiao-Jun
XJ
D005419:Flavonoids / Q000302:isolation & purification / Q000494:pharmacology*; D005697:Galactosides / Q000302:isolation & purification / Q000494:pharmacology*; D006027:Glycosides / Q000302:isolation & purification / Q000494:pharmacology*; D006109:Poaceae / Q000737:chemistry*; D000461:Rhodophyta / Q000187:drug effects* / Q000254:growth & development / Q000502:physiology
D005419:Flavonoids; D005697:Galactosides; D006027:Glycosides; C553079:isohamnetin-3-O-sophoroside-7-O-rhamnoside; C553080:syringetin-3-O-galactoside