title: [Inhibitory effects of Spartina anglica on Heterosigma akashiwo and Prorocenrum micans and the isolation and identification of the algicidal compounds].
abstract: 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.
authors.affiliation: 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
authors.forename: Nian-Jun
authors.initials: NJ
authors.lastname: Xu
authors.forename: Jun
authors.initials: J
authors.lastname: Tang
authors.forename: Ze-Wei
authors.initials: ZW
authors.lastname: Zhang
authors.forename: Xiao-Jun
authors.initials: XJ
authors.lastname: Yan
mesh_terms: 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
chemical_list: D005419:Flavonoids; D005697:Galactosides; D006027:Glycosides; C553079:isohamnetin-3-O-sophoroside-7-O-rhamnoside; C553080:syringetin-3-O-galactoside