Compound A was isolated from endophytic fungus( No.2526) of mangrove Avicennia from the South China Sea. The structure of compound A was elucidated by compr ehensive spectral data and coincided with that of sterigmato...Compound A was isolated from endophytic fungus( No.2526) of mangrove Avicennia from the South China Sea. The structure of compound A was elucidated by compr ehensive spectral data and coincided with that of sterigmatocystin. Compound A s howed a weak cytotoxic activity against Bel-7402 and NCIH-460 in vitro wit h IC 50 96 53×10 -6 and 72 52×10 -6 g/mL respectively. It is the first report on sterigmatocystin that isolated from marine fungus.展开更多
A mangrove endophytic fungus(No.1947)was isolated from the leaves of Kandelia candel from all estuarine mangrove from the South China Sea.The secondary metabolites of this strain were studied firstly in this paper and...A mangrove endophytic fungus(No.1947)was isolated from the leaves of Kandelia candel from all estuarine mangrove from the South China Sea.The secondary metabolites of this strain were studied firstly in this paper and five compounds were isolated from the fermentation liquid.Their structures were elucidated by spectroscopy methods as three cyclodipeptides,cyclo-(Tyr-Tyr),cyclo-(Leu-Leu)and cyclo-(AIa-Leu),and Uracil and 5-isobutyl-2,4-imidazolidinedione.The results show that this fungal strain can produce abundant azacyclic compounds.展开更多
The secondary metabolites of the fungus Cephalosporium sp.(2090#) are first reported which isolated from the mangrove sample from the South China Sea.Seven compounds are isolated from the mycelium of this strain.Their...The secondary metabolites of the fungus Cephalosporium sp.(2090#) are first reported which isolated from the mangrove sample from the South China Sea.Seven compounds are isolated from the mycelium of this strain.Their structures are identified by comprehensive spectroscopic methods.展开更多
Six alkaloids,2-(1H-indol-3-yl)-4H-benzo[d]oxazin-4-one(1),methyl o-(indole-3-carboxamido) benzoate(2),cyclo(Ile-Leu-Val-Va1)(3),cyclo(Phe-Gly)(4),cyclo(Leu-Leu)(5),and cyclo(Ala-Leu)(6),were isolated from the mangrov...Six alkaloids,2-(1H-indol-3-yl)-4H-benzo[d]oxazin-4-one(1),methyl o-(indole-3-carboxamido) benzoate(2),cyclo(Ile-Leu-Val-Va1)(3),cyclo(Phe-Gly)(4),cyclo(Leu-Leu)(5),and cyclo(Ala-Leu)(6),were isolated from the mangrove endophytic fungus ZSU-H26 from the South China Sea.Their structures were elucidated by spectral data.Indole alkaloids 1 and 2 were both isolated from microorganism for the first time.In the preliminary bioassay,1 and 2 show inhibitory activity on the hepG2 cell line with IC50 values of 20μg/mL and 35μg/mL,respectively.展开更多
Eight compounds are isolated from the ferment liquid of mangrove fungus(No.zzf33) by silica gel column chromatography.Their structures are determined to be ramlusin(1),monodictyxanthone(2),8-hydroxy-6-methyl-9-oxo-9H-...Eight compounds are isolated from the ferment liquid of mangrove fungus(No.zzf33) by silica gel column chromatography.Their structures are determined to be ramlusin(1),monodictyxanthone(2),8-hydroxy-6-methyl-9-oxo-9H-xanthene-1-carboxylic acid methyl ester(3),(E)-dec-2-enedioic acid(4),succinic acid(5),urail(6),thymine(7) and nonacosanoic acid(8) on the basis of comprehensive spectroscopic analysis and chemical method.Compounds 1-3 are isolated from Penicillium sp.for the first time.Compound 8 is first found in marine fungus.In the primary bioassay,compound 2 and 3 exhibit high inhibition to hep2 and hepG2 cells lines.展开更多
Two metabolites(A and B) were isolated from a mangrove endophytic fungus Stysanus like sp.(#2492) from the South China Sea.Their structures were elucidated by spectral data as N-(2’-hydroxytetracosyl)-2-amino1,3,4-tr...Two metabolites(A and B) were isolated from a mangrove endophytic fungus Stysanus like sp.(#2492) from the South China Sea.Their structures were elucidated by spectral data as N-(2’-hydroxytetracosyl)-2-amino1,3,4-trihydroxyoctadecane(A) and γ-stearolactone(B).In the primary bioassay,compound B did not exhibit significant inhibitory activity to DNA topoisomerase hTOP Ⅰ,and also had no significant inhibitory activity to tumor cell lines Bel-7402 and NCIH-460.It was the first report that γ-stearolactone(B) isolated from marine fungus as natural product.展开更多
文摘Compound A was isolated from endophytic fungus( No.2526) of mangrove Avicennia from the South China Sea. The structure of compound A was elucidated by compr ehensive spectral data and coincided with that of sterigmatocystin. Compound A s howed a weak cytotoxic activity against Bel-7402 and NCIH-460 in vitro wit h IC 50 96 53×10 -6 and 72 52×10 -6 g/mL respectively. It is the first report on sterigmatocystin that isolated from marine fungus.
文摘A mangrove endophytic fungus(No.1947)was isolated from the leaves of Kandelia candel from all estuarine mangrove from the South China Sea.The secondary metabolites of this strain were studied firstly in this paper and five compounds were isolated from the fermentation liquid.Their structures were elucidated by spectroscopy methods as three cyclodipeptides,cyclo-(Tyr-Tyr),cyclo-(Leu-Leu)and cyclo-(AIa-Leu),and Uracil and 5-isobutyl-2,4-imidazolidinedione.The results show that this fungal strain can produce abundant azacyclic compounds.
文摘The secondary metabolites of the fungus Cephalosporium sp.(2090#) are first reported which isolated from the mangrove sample from the South China Sea.Seven compounds are isolated from the mycelium of this strain.Their structures are identified by comprehensive spectroscopic methods.
文摘Six alkaloids,2-(1H-indol-3-yl)-4H-benzo[d]oxazin-4-one(1),methyl o-(indole-3-carboxamido) benzoate(2),cyclo(Ile-Leu-Val-Va1)(3),cyclo(Phe-Gly)(4),cyclo(Leu-Leu)(5),and cyclo(Ala-Leu)(6),were isolated from the mangrove endophytic fungus ZSU-H26 from the South China Sea.Their structures were elucidated by spectral data.Indole alkaloids 1 and 2 were both isolated from microorganism for the first time.In the preliminary bioassay,1 and 2 show inhibitory activity on the hepG2 cell line with IC50 values of 20μg/mL and 35μg/mL,respectively.
文摘Eight compounds are isolated from the ferment liquid of mangrove fungus(No.zzf33) by silica gel column chromatography.Their structures are determined to be ramlusin(1),monodictyxanthone(2),8-hydroxy-6-methyl-9-oxo-9H-xanthene-1-carboxylic acid methyl ester(3),(E)-dec-2-enedioic acid(4),succinic acid(5),urail(6),thymine(7) and nonacosanoic acid(8) on the basis of comprehensive spectroscopic analysis and chemical method.Compounds 1-3 are isolated from Penicillium sp.for the first time.Compound 8 is first found in marine fungus.In the primary bioassay,compound 2 and 3 exhibit high inhibition to hep2 and hepG2 cells lines.
文摘Two metabolites(A and B) were isolated from a mangrove endophytic fungus Stysanus like sp.(#2492) from the South China Sea.Their structures were elucidated by spectral data as N-(2’-hydroxytetracosyl)-2-amino1,3,4-trihydroxyoctadecane(A) and γ-stearolactone(B).In the primary bioassay,compound B did not exhibit significant inhibitory activity to DNA topoisomerase hTOP Ⅰ,and also had no significant inhibitory activity to tumor cell lines Bel-7402 and NCIH-460.It was the first report that γ-stearolactone(B) isolated from marine fungus as natural product.
