食品科学 ›› 2012, Vol. 33 ›› Issue (13): 235-239.doi: 10.7506/spkx1002-6630-201213050

• 生物工程 • 上一篇    下一篇

李果实贮藏期间4 株病原真菌的分离、鉴定及 碳源代谢指纹图谱分析

王友升,陈玉娟,张燕   

  1. 北京工商大学食品学院,食品添加剂与配料北京高校工程研究中心,北京市食品风味化学重点实验室
  • 出版日期:2012-07-15 发布日期:2012-07-27
  • 基金资助:
    国家“863”计划项目(2012AA101607)

Isolation, Identification and Carbon Metabolic Fingerprinting Analysis of Four Pathogens Isolated from Postharvest Plum Fruit

WANGYou-sheng,CHENYu-juan,ZHANGYan   

  1. (Beijing Higher Institution Engineering Research Center of Food Additives and Ingredients, Beijing Key Laboratory of Food Flavor Chemistry, School of Food and Chemical Engineering, Beijing Technology and Business University, Beijing 100048, China)
  • Online:2012-07-15 Published:2012-07-27

摘要: 从采后贮藏过程中发病的“安哥诺”(Prunus angeleno)和“黑琥珀”(Prunus salicina cv. Black amber) 李果实中分离到4株丝状病原真菌。通过对病原菌株形态学特征观察以及核糖体rDNA ITS序列系统分析,确定菌株059#为串珠状赤霉(Gibberella moniliformis)、菌株067#为链格孢菌(Alternaria alternata)、菌株087#为草酸青霉(Penicillium oxalicum)以及菌株088#为塔宾曲霉(Aspergillus tubingensis)。进一步利用Biolog FF MicroPlate分析病原菌对95种碳源的利用能力,结果表明这4种病原菌的最适碳源皆在77种以上,且共同的最适碳源包括D-果糖、D-葡萄糖、蔗糖、山梨糖醇、苹果酸和柠檬酸等45种。

关键词: 李果实, 病原真菌, ITS rDNA序列分析, 碳源代谢指纹图谱

Abstract: Four pathogens, strain 059#, 067#, 087# and 088#, were isolated from infected plum fruit during postharvest storage. Morphological characterization and rDNA ITS analysis confirmed that the four pathogens were Gibberella moniliformis, Alternaria alternate, Penicillium oxalicum and Aspergillus tubingensis, respectively. A Biolog Microbial Identification System with FF MicroPlate was applied for carbon source utilization tests of the four pathogens based on their abilities to utilize 95 different substrates. The results of carbon metabolic fingerprinting analysis showed that all the isolated pathogens had more than 77 optimal carbon sources, 45 ones in common such as D-fructose, D-glucosamine, sucrose, sorbitol, malic acid and citric acid.

Key words: plum fruit, fungal pathogen, ITS rDNA sequence analysis, carbon metabolic fingerprinting

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