王 越1,2
,张玉琴3
,徐喆菲1,2
,白琪琪1,2
,陈文豪1,2
,周学明1,2
,陈光英1,2*.红榄李来源内生真菌Penicillium oxalicum HLLG-13
次级代谢产物与生物活性研究[J].海南师范大学学报自科版,2023,36(4):420-428 |
红榄李来源内生真菌Penicillium oxalicum HLLG-13
次级代谢产物与生物活性研究 |
Study on the Secondary Metabolites and Biological Activity from Lumnitzera littorea-Derived Endophytic Fungus Penicillium oxalicum HLLG-13 |
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DOI:10.12051/j.issn.1674-4942.2023.04.010 |
中文关键词: 红榄李 Penicillium oxalicum 次级代谢产物 抗菌活性 神经保护活性 |
英文关键词: Lumnitzera littorea Penicillium oxalicum secondary metabolites antibacterial activity naeuroprotective
activity |
基金项目:国家自然科学基金项目(22177023,41866005);海南省自然科学基金项目(221RC1054);海南省重大科技计划
项目(ZDKJ202008);中央引导地方科技发展资金项目(ZY2022HN08) |
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中文摘要: |
对一株红树植物红榄李(Lumnitzera littorea(Jacq.) Voigt)内生真菌Penicillium oxalicum
HLLG-13次级代谢产物进行系统研究;综合运用多种色谱分离方法结合波谱、光谱技术从中分离
鉴定了21个单体化合物,分别为2-(4-羟苯基)乙基-(2S)-羟基丙酸(1),2-(4-羟苯基)乙酸乙酯
(2),(4-羟 苯 基)乙 酸 甲 酯(3),4-羟 基 苯 乙 醇(4),2,4,5-三 甲 基 间 苯 二 酚(5),1-(2,6-
dihydroxyphenyl) butan-1-one(6),rosmarinosin C(7),penicyclone A(8),penicyclone C(9),2-(N-乙
酰氨基)苯酚(10),N-乙酰酪胺(11),2-[[(2S)-羟基-1-氧丙基]氨基]苯甲酰胺(12),peniamidone
A(13),meleagrin(14),7-羟基-2-(2ʹS-羟丙基)-5-甲基色酮(15),3-甲基-6,8-二羟基异香豆素
(16),(-)-6-hydroxymellein(17),(3R)-甲基-5-氯-6,8-二羟基-二氢异香豆素(18),(3R)-甲基-6,
8-二羟基-7-甲氧基-二氢异香豆素(19),(-)-citreoisocoumarinol(20)和 de-O-methyldiaporthin
(21)。抗菌活性测试结果表明,所有化合物对测试的5株人体致病菌和3株弧菌均无明显抗菌活
性;神经保护活性测试结果表明,化合物16具有中等的神经保护活性,在200 µmol/L浓度下,可以
将H2O2氧化损伤的HT22细胞存活率由43.36%提升至60.15%。 |
英文摘要: |
Twenty-one compounds were isolated from the EtOAc extract of the fermentation broth of the Lumnitzera litto⁃
rea-derived fungus Penicillium oxalicum HLLG-13. Their structures were elucidated by 1D NMR, MS spectral analyses
and compared with literature data. The compounds were identified as 2-(4-hydroxyphenyl)ethyl (2S)-2-hydroxypropanoate
(1), 2- (4-hydroxyphenyl)ethylacetate (2), methyl(4-hydroxyphenyl)acetate (3), 4-hydroxybenzeneethanol (4), 2, 4, 5-tri⁃
methylresorcinol (5), 1-(2,6-dihydroxyphenyl) butan-1-one (6), rosmarinosin C (7), penicyclone A (8), penicyclone C (9),
2-(N-acetylamino)phenol (10), N-acetyltyramine (11), 2-[[(2S)-2-hydroxy-1-oxopropyl]amino] benzamide (12), peniami⁃
done A (13), meleagrin (14), 7-hydroxy-2-(2′S-hydroxypropyl)-5-methylchromone (15), 6,8-dihydroxy-3-methylisocou⁃
marin (16), (-)-6-hydroxymellein (17), (3R)-5-chloro-3,4-dihydro-6,8- dihydroxy-3-methyl-1H-2-benzopyran-1-one
(18), (3R) -3, 4-dihydro-6, 8-dihydroxy-7-methoxy-3-methyl-1H-2-benzopyran-1-one (19), (- ) -citreoisocoumarinol
(20) and de-O-methyldiaporthin (21). All compounds exhibited no antibacterial activity against the five human pathogenic
bacterium and three vibrios. Compound 16 showed moderate neuroprotective activity, which could increase the cell survival
rate of H2O2 induced oxidative damage HT22 cells from 43.36% to 60.15% at the concentration of 200 µmol/L. |
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