ass日本风韵熟妇pics男人扒开女人屁屁桶到爽|扒开胸露出奶头亲吻视频|邻居少妇的诱惑|人人妻在线播放|日日摸夜夜摸狠狠摸婷婷|制服 丝袜 人妻|激情熟妇中文字幕|看黄色欧美特一级|日本av人妻系列|高潮对白av,丰满岳妇乱熟妇之荡,日本丰满熟妇乱又伦,日韩欧美一区二区三区在线

In order to make sure the distribution of Alicyclobacillus from apple libraries in Shaanxi province, the Alicyclobacillus in apple and air were isolated and purified by using acidified AAM medium. The cell morphology, colony morphology, growing conditions, cultural characteristics and physiological characteristics were compared with the reference strain A.acidoterrestris DSM3922T. A phylogenetic tree based on 16S rDNA sequence analysis was constructed. The genetic location of eight isolated strains was clear. The isolated strain LC-4 was basically consistent with the reference stain Alicyclobacillus acidoterrestris DSM3922 T in morphology and physiological characteristics. By 16S rDNA sequence analysis, isolated strain LC-4 shared a homology of 99% with the reference strain, so it belonged to A.acidoterrestris and the other seven strains belonged to Bacillus ginsengihuimi. The results suggested Alicyclobacillus was distributed in orchard soil, which might pose a threat to the quality of fruit juice, and needed to be controlled.