应用生态学报2000，Vol.11Issue(6)：951-953,3.
影响引人微生物根部定殖的因素
Factors affecting colonization of introduced microorganisms on plant roots
摘要
Abstract
Microorganisms such as biological control agents (BCA), plant growth-promoting rhizobacteria (PGPR) and yield increasing bacteria (YIB) were introduced along growing roots. The colonization process of introduced bacteria was proved that they attached root tipfirst, then distributed along roots, multiplicated there, and survived as certain population size. The colonization location was closely related with root exudates, which was usually at the junction between cortex cells or at the base of lateral roots or root hairs. The variation of colonization by introduced microorganisms in the rhizosphere was caused by biotic and abiotic factors. Biotic factors included the physiological characters of introduced microorganisms and interactions between introduced microorganisms and native microbes. The more important factors were plant genotypes which associated with introduced beneficial microbes and regulated the population and community of those microbes affecting the colonization of introduced microorganisms. Abiotic factors here referred to soil environmental conditions,e. g.,soil texture, water content, soil temperature and pH value.关键词
生物防治制剂(BCA)根围促生细菌(PGPR)根部定殖植物基因型Key words
Biological control agents (BCA)/Plant growth-promoting rhizobacteria (PGPR)/Root colonization/ Plant genotype引用本文复制引用
张炳欣,张平,陈晓斌..影响引人微生物根部定殖的因素[J].应用生态学报,2000,11(6):951-953,3.基金项目
澳大利亚国际农业研究中心(ACIAR)项目(NP9680)和国家自然科学基金资助项目(30070511)． （ACIAR）
