LI Ziyang,HUANG Nuoer,HUANG Qisen,et al.The metabolites of a mangrove fungus Phoma herbarum L28[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2023,62(02):60-65.
LI Ziyang,HUANG Nuoer,HUANG Qisen,et al.The metabolites of a mangrove fungus Phoma herbarum L28[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2023,62(02):60-65. DOI: 10.13471/j.cnki.acta.snus.2022C016.
The metabolites of a mangrove fungus Phoma herbarum L28
A. Gray,通过大米发酵培养。采用色谱层析、波谱分析等技术分离鉴定了10个单体化合物fusarihexin A (
1
),fusarihexin B (
2
),botryosphaerihydrofuran (
3
),
N
1-methyl-2-pyridone-5-carboxamide (
4
),4′,5,6-trihydroxy-7-methoxyisoflavone (
5
),ascomfuran A (
6
),4-羟基苯乙酸 (
7
),protocatechuic acid (
8
),胸腺嘧啶脱氧核苷 (
9
),nortetillapyrone (
10
)。其中化合物
1
,
2
,
3
,
4
,
5
,
10
为首次从
Phoma
属中分离获得。二倍稀释法抗菌测试显示化合物
1
,
2
对O78血清型大肠杆菌
Escherichia coli
(禽致病性),化合物
3
和
10
对小麦赤霉菌
Fusarium graminearum
,化合物
4
对番茄枯萎菌
Fusarium oxysporum
显示强抗菌活性。
Abstract
The study investigated the metabolites of an endophytic fungus
Phoma herbarum
L28 derived from the mangrove plant
Myoporum bontioides
A. Gray. The fungus was fermented in the rice medium. Ten monomeric compounds were isolated and identified as fusarihexin A (
1
),fusarihexin B (
2
),botryosphaerihydrofuran (
3
),
N
1-methyl-2-pyridone-5-carboxamide (
4
),4′,5,6-trihydroxy-7-methoxyisoflavone (
5
),ascomfuran A (
6
),4-hydroxyphenylacetic acid (
7
), protocatechuic acid (
8
),thymidine (
9
) and nortetillapyrone (
10
) by the modern chromatography technology and spectral analysis. Among them, compounds
1
,
2
,
3
,
4
,
5
and
10
were firstly isolated from
Phoma
sp. The activity bioassay via the double dilution method showed that the antimicrobial activities of following compounds were strong, they are compounds
1
and
2
against
Escherichia coli
with O78 serotype, compounds
3
and
10
against
Fusarium graminearum
,
and compound
4
against
Fusarium oxysporum
respectively.
关键词
苦槛蓝草茎点霉次级代谢产物抗菌活性
Keywords
Myoporum bontioides A. GrayPhoma herbarummetabolitesantimicrobial activity
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