Hulikere Manjunath M, Joshi Chandrashekhar G, Ananda D, Poyya Jagadeesh, Nivya T
Department of Biochemistry, Mangalore University, P.G.Centre, Chikka Aluvara, Kodagu, India.
Mycology. 2016 Dec 14;7(4):203-211. doi: 10.1080/21501203.2016.1263688. eCollection 2016.
Endophytic fungi from marine seaweeds are the less studied group of organisms with vast medical applications. The aim of the present study was to evaluate antioxidant, antiangiogenic as well as wound healing potential of the endophytic fungus isolated from the seaweed . The morphological characters and the rDNA internal transcribed spacer sequence analysis (BLAST search in Gen Bank database) was used for the identification of endophytic fungus. The antioxidant potential of the ethyl acetate extract of endophytic fungus was assessed by, 1,1-diphenyl-2-picryl-hydrazyl radical scavenging method. The fungal extract was also analysed for reducing power, total phenolic and flavonoid content. Antiangiogenic activity of the fungal extract was studied by inhibition of wound healing scratch assay and by Chick chorioallantoic membrane assay. The endophytic fungus was identified as (Gen Bank ID - KT384175). The ethyl acetate extract of showed a significant antioxidant and angiosuppressive activity. The ESI-LC-MS analysis of the extract revealed the presence of wide range of secondary metabolites. Results suggest that C. extract could be exploited as a potential source for angiogenic modulators.
来自海洋海藻的内生真菌是一类研究较少但具有广泛医学应用的生物群体。本研究的目的是评估从海藻中分离出的内生真菌的抗氧化、抗血管生成以及伤口愈合潜力。利用形态学特征和rDNA内部转录间隔区序列分析(在Gen Bank数据库中进行BLAST搜索)来鉴定内生真菌。通过1,1-二苯基-2-苦基肼自由基清除法评估内生真菌乙酸乙酯提取物的抗氧化潜力。还对真菌提取物的还原能力、总酚和黄酮含量进行了分析。通过抑制伤口愈合划痕试验和鸡胚绒毛尿囊膜试验研究了真菌提取物的抗血管生成活性。该内生真菌被鉴定为(Gen Bank ID - KT384175)。的乙酸乙酯提取物表现出显著的抗氧化和血管抑制活性。提取物的电喷雾液相色谱-质谱分析表明存在多种次生代谢产物。结果表明,提取物可作为血管生成调节剂的潜在来源加以开发利用。