从Kurthia gibsonii (Bacillales) 中分离的生物活性化合物的环保生物杀和抗菌活性
Dhayalan Arul1,2, Govindasamy Vinoth3, Ranganathan Muthusamy4
1Department of Biotechnology, School of Biosciences, Periyar University, Salem, India.
Natural product research
|May 20, 2024
概括
一种新型细菌,Kurthia gibsonii,显示出强大的蚊虫杀活性. 它的提取物含有生物活性化合物,有可能用于环保的蚊子生物控制和捕捉策略.
科学领域:
- 微生物学 微生物学
- 昆虫学 昆虫学是一门学科.
- 生物化学 生物化学
背景情况:
- 蚊子传播的疾病对全球健康构成重大风险.
- 目前的防治方法面临诸如抗杀虫剂耐药性等挑战.
- 需要新的,环保的蚊虫防治剂.
研究的目的:
- 为了识别具有蚊虫杀性质的细菌分离物.
- 描述负责杀活动的生物活性化合物.
- 探索这些化合物对蚊子控制和捕捉的潜力.
主要方法:
- 检查细菌肠道细菌超级生物的杀性活动,以对抗艾迪斯埃吉普蒂和阿诺菲尔斯斯斯蒂芬西.
- 使用16S rRNA测序识别活性的细菌.
- 提取和化学分析 (FT-IR,GC-MS) 的活性细菌乙提取物 (DEE).
- 对已识别的化合物进行针对蚊子嗅觉受体和结合蛋白的分子对接研究.
主要成果:
- 库尔提亚 gibsonii (SS11) 呈现出显著的幼虫杀虫活性.
- 艾迪斯艾吉普蒂的LC50值为5.59μL/mL,而安诺菲莱斯斯斯蒂芬西则为8.59μL/mL.
- GC-MS确定了7种生物活性化合物,包括2,4,6-三甲,9-三烯和二甲.
- 分子对接表明了与蚊子嗅觉点的潜在相互作用.
结论:
- 库尔提亚 gibsonii 衍生化合物显示承诺作为环境兼容的替代品蚊子生物控制.
- 特定的化合物,如9-tricosene和dedecyl phthalate可能在蚊帐中有用.
更多相关视频
06:58Author Spotlight: Evaluation of Entomopathogenic Fungi in Wild Monochamus alternatus Populations for Biocontrol Applications in Forest Wood Borers
Published on: September 29, 2023
712
04:52Author Spotlight: Discovering New Biopesticides from Bioactive Soil Microbe-Derived Natural Products
Published on: July 26, 2024
1.5K
相关概念视频
01:27Chemical Agents for Microbial Control
Chemicals play important roles in controlling microbial growth by targeting microbial structures and functions as sanitizers, antiseptics, disinfectants, and sterilants.Alcohols are commonly used sanitizers, effectively disrupting lipid membranes, which compromises cell integrity. They are also used as antiseptics and disinfectants due to their rapid action and versatility.Phenols and their derivatives phenolics , known for denaturing proteins and disrupting cell membranes, are particularly...
01:28Biological Methods for Microbial Control
Biological agents offer an effective means of controlling microbial growth by leveraging natural processes like predation, competition, and the secretion of antimicrobial substances.Predatory bacteria such as Bdellovibrio species target and kill pathogens like Salmonella and E. coli. They are widely used in poultry farms to control infections. Myxococcus species help combat plant-pathogenic fungi. These naturally occurring predators serve as eco-friendly alternatives to chemical pesticides and...
01:28Microbial Bioremediation of Pesticides
Pesticides often feature structurally complex chemical architectures, incorporating halogen groups and multiple aromatic rings. These characteristics confer high chemical stability, rendering many pesticides resistant to natural degradation processes. This resistance poses significant environmental concerns, as persistent pesticide residues can accumulate in ecosystems and affect non-target organisms.Despite the inherent stability of many pesticides, certain microorganisms possess the metabolic...
01:18Production of Biopesticides
Biopesticides offer a sustainable alternative to chemical pesticides, utilizing microbial agents to control agricultural pests. Bacillus thuringiensis (Bt) is a widely employed bacterium known for its potent insecticidal activity. Bt biopesticides are favored for their specificity to insect pests, minimal environmental impact, and natural degradability.Mechanism of Bt Toxin Action Bt produces insecticidal crystal (Cry) proteins during its sporulation phase. These proteins form parasporal...