Abstract：
Amphipathic compounds known as biosurfactants are able to reduce surface and interfacial tensions. These substances produced by microbial organisms perform the same functions as chemical surfactants with several enhancements, the most significant of which is biocontrol activity. Lipopeptide is one of the five biosurfactants from natural resources and is identified as the best alternative for chemical surfactants and the major topic of interest for both scientific and industrial communities due to their increasingly growing potential applications in biological and commercial fields. These are the biological compounds with very less toxicity level that increase their importance in the pesticide industry. In this article we summarize the structural diversity of the microbial lipopeptide biosurfactants and focus on their applications as biocontrol agents in plants, covering (1) an intensive study of the structural diversity of lipopeptide biosurfactants originated primarily by the Bacillus, Pseudomonas, Cyanobacteria, and Actinomycetes species is presented, (2) the comparative study of advantages and disadvantages of characterization techniques and physicochemical properties which have a major role in biocontrol activity of microbial lipopeptides, and (3) their wide range biocontrol applications as systemic resistance inducers against different plant diseases, resistance against phytopathogens by alteration of wettability of plant surfaces and antimicrobial activities of important bioactive lipopeptides produced from Bacillus strains.
摘要：
被称为生物表面活性剂的两亲性化合物能够降低表面和界面张力。微生物产生的这些物质与化学表面活性剂具有相同的功能，其中最重要的是生物防治活性。脂肽是来自自然资源的五种生物表面活性剂之一，被认为是化学表面活性剂的最佳替代品，也是科学界和工业界感兴趣的主要话题，因为它们在生物和商业领域的潜在应用日益增加。这些是具有非常低的毒性水平的生物化合物,这增加了它们在农药工业中的重要性。在本文中，我们总结了微生物脂肽生物表面活性剂的结构多样性，并重点介绍了它们在植物中作为生物防治剂的应用。涵盖（1）对主要由芽孢杆菌起源的脂肽生物表面活性剂的结构多样性的深入研究，假单胞菌,蓝细菌,并介绍了放线菌物种，(2)比较研讨了对微生物脂肽的生防活性有主要感化的表征技巧和理化性质的优、缺点,和（3）它们作为针对不同植物病害的系统抗性诱导剂的广泛生物防治应用，通过改变植物表面的润湿性和由芽孢杆菌菌株产生的重要生物活性脂肽的抗菌活性来抵抗植物病原体。
