在巴西酵母菌株中寻找生物活性潜力和化合物
Viviani Tadioto1,2, Angela Alves Dos Santos1, Anderson Giehl1
1Laboratory of Yeast Biochemistry, Federal University of Fronteira Sul, Chapecó, SC, Brazil.
Current microbiology
|December 11, 2025
概括
来自不同巴西环境的野生酵母产生强大的生物活性化合物. 提取物显示有前途的抗癌和抗菌膜活动,突出显示未开发的微生物生物多样性潜力.
科学领域:
- 微生物学 微生物学
- 生物技术是生物技术.
- 自然产品 化学 化学
背景情况:
- 酵母是生物活性化合物的丰富来源,具有多种应用.
- 探索微生物生物多样性对于发现新型自然产品至关重要.
- 之前的研究表明了酵母衍生化合物在医学和工业中的潜力.
研究的目的:
- 为了研究从巴西各种环境中分离出来的六种酵母菌株的抗氧化,细胞毒性和抗菌潜力.
- 为了确定关键的化合物和其他代谢物,负责观察到的生物活性.
- 评估这些野生酵母作为新生物活性化合物的来源的潜力.
主要方法:
- 从不同的生态中分离和培养六种酵母菌株.
- 使用各种溶剂 (水性,butanol,乙酸乙烯) 制备酵母提取物.
- 测试抗氧化活性,针对瘤和健康细胞的细胞毒性,以及在不同表面上的抗菌膜疗效.
- 使用色谱和光谱方法识别化合物.
主要成果:
- 来自Saccharomyces cerevisiae PE-2和Meyerozyma caribbica CHAP-204的水性提取物对瘤细胞具有显著的细胞毒性,对健康细胞的毒性最小.
- 罗多托鲁拉粘性菌CHAP-208丁醇提取物在表面表现出强大的抗菌膜活性,对抗 Pseudomonas aeruginosa.
- 梅耶罗齐玛虫CHAP-243水性提取物在聚烯表面显示出显著的生物膜减少.
- 几种酵母提取物在免疫细胞中表现出抗氧化活性,p-coumaric酸是发现的最丰富的化合物.
结论:
- 来自巴西的野生酵母菌株具有产生具有治疗用途的生物活性化合物的巨大潜力.
- 特定的酵母提取物显示出有前途的抗癌和抗菌膜特性,需要进一步研究.
- 该研究强调了探索和保护巴西微生物生物多样性的重要性,以发现新的天然产品.
相关概念视频
Yeast Signaling
17.1K
Yeasts are single-celled organisms, but unlike bacteria, they are eukaryotes (cells with a nucleus). Cell signaling in yeast is similar to signaling in other eukaryotic cells. A ligand, such as a protein or a small molecule released from a yeast cell, attaches to a receptor on the cell surface. The binding stimulates second-messenger kinases to activate or inactivate transcription factors that further regulate gene expression. Many of the yeast intracellular signaling cascades have similar...
17.1K
Microbial Fermentation
1.3K
Fermentation is a crucial anaerobic metabolic process that enables microbes to derive energy from sugar without relying on oxygen or an electron transport chain. This process is fundamental to various biological and industrial applications and is classified based on the metabolic products generated.Role of Pyruvate in FermentationPyruvate and its derivatives serve as key electron acceptors in fermentative pathways. The oxidation of NADH to regenerate NAD+ is essential for the continuation of...
1.3K
Fates of Pyruvate
10.4K
Pyruvate is the end product of glycolysis, where glucose is oxidized to pyruvate, simultaneously reducing NAD+ to NADH. Two molecules of ATP are also produced by substrate-level phosphorylation.
In aerobic organisms, pyruvate is metabolized via the citric acid cycle to produce reduced coenzymes NADH and FADH2. These coenzymes are then oxidized in the electron transport chain to produce ATP and, in the process, regenerate the NAD+ and FAD. As seen in some cell types and organisms, fermentation...
In aerobic organisms, pyruvate is metabolized via the citric acid cycle to produce reduced coenzymes NADH and FADH2. These coenzymes are then oxidized in the electron transport chain to produce ATP and, in the process, regenerate the NAD+ and FAD. As seen in some cell types and organisms, fermentation...
10.4K
Fermentation
128.5K
Most eukaryotic organisms require oxygen to survive and function adequately. Such organisms produce large amounts of energy during aerobic respiration by metabolizing glucose and oxygen into carbon dioxide and water. However, most eukaryotes can generate some energy in the absence of oxygen by anaerobic metabolism.
Fermentation is a type of metabolic process that occurs in the absence of oxygen, where organic molecules such as glucose are broken down to produce energy. During this process, the...
Fermentation is a type of metabolic process that occurs in the absence of oxygen, where organic molecules such as glucose are broken down to produce energy. During this process, the...
128.5K
Fungal Group Zygomycota
949
Zygomycota, previously classified as a distinct fungal group, are primarily terrestrial, saprophytic molds that play a crucial role as decomposers. Recent phylogenetic studies have revealed that these fungi are now divided into two major clades — Mucoromycota, which includes many symbiotic species, and Zoopagomycota, which primarily consists of parasitic and pathogenic fungi. These groups exhibit distinct ecological roles and reproductive strategies while sharing key structural and...
949
Biosynthesis of Polysaccharides
521
Polysaccharides such as glycogen and starch are synthesized from nucleoside diphosphate sugars, primarily uridine diphosphate glucose (UDPG) and adenosine diphosphate glucose (ADPG). These activated glucose donors act as key intermediates in carbohydrate metabolism and biosynthesis. UDPG primarily involves glycogen synthesis in animals and many bacteria, while ADPG plays a fundamental role in starch synthesis in plants and certain bacteria.UDPG is formed when glucose-1-phosphate reacts with...
521


