Abstract:
Field release and detectio n of engineered Pseudomonas f luorescens st rain with Bt cry genes wascarried in Baoding,Hebei province.The colonization,diffusion and cont rolling effect of this st rain w ere investigated.Its effect on natural enemies and arthropod communi ty w ere researched,also it s relation wi th ebb andflow of native Bacillus.The results show ed that BioP8 could colonize and survive in cot ton environment.Densityof BioP8 reached the highest level either in soil o r on leaves three days after sprayed on cot ton.Simulated experimentshowed that there was no mutual antagonistic betw een BioP8 and natural bacillus.BioP8 could af fect abundancedeg ree of arthropod group in field in some deg ree.The hig hest ratio between natural enemies and insect sin Biop8 field was higher than in chemical field by 45.2 %.
Key words:
Genetic engineered Pseudomonas f luorescens,
Environment release
CLC Number:
FENG Shu-liang, CAO Wei-ping, CHEN Zhong-yi, ZHANG Jie, WANG Rong-yan, WANG Jin-yao. Release and Detection of Engineered Pseudomonas fluorescens Strains with Bt cry Genes in Hebei[J]. ACTA AGRICULTURAE BOREALI-SINICA, doi: 10.3321/j.issn:1000-7091.2003.z1.032.