苏云金芽孢杆菌伴孢晶体的研究进展

摘要

伴胞晶体是苏云金芽孢杆菌(Bacillus thuringiensis,简称Bt)在芽孢形成过程中产生的一种蛋白晶体.作为生物杀虫农药之一,伴胞晶体/Bt由于具有高效、广谱、环保及生物安全等优势,在农林业中得到广泛应用.介绍了伴胞晶体的最新分类、命名情况,综速了其结构、杀虫机理及应用方面的研究进展,并对Bc生物农药的发展前景进行了展望.%Parasporal crystals are insecticidal δ-endoloxin proteins (named Cry and Cyl toxins) produced by Bacillus thuringiensis (Bt) during the sporulation phase. As one of the bio-pesticides, parasporal cryatals/Bt have been widely used in agriculture and forestry with the advantages of high efficiency, broad-spectrum, environmental protection and bio-safety. The latest classification and nomenclature of parasporal crystals were introduced, the research progress in their structure, inseeticidal mechanism and application were reviewed in this paper, and their development prospect in Bt biological pesticides was forecasted.