贮藏环境对甜樱桃拮抗酵母菌生长和链格孢菌生物防治的影响(英文)  

Effects of Storage Environment on the Growth of Rhodotorula glutinis and Biocontrol of Alternaria alternata on Sweet Cherries

作　　者：冯晓元[1] 田世平[2] 秦国政[2] 徐勇[2] 陈梅香[1] 

机构地区：[1]北京市农林科学院林业果树研究所,北京100093 [2]中国科学院植物研究所,北京100093

出　　处：《果树学报》2004年第2期113-115,共3页Journal of Fruit Science

基　　金：北京市自然科学基金项目(6012005)

摘　　要：拮抗酵母菌(Rhodotorulaglutinis)在20～25℃的室温下生长较快,即使20%CO2亦不能抑制其生长,但菌落直径扩展速度与CO2浓度(0～20%)呈显著负相关(r=-0.8999～-0.9383)。R.glutinis在低温(1℃)条件下,对CO2较敏感,15%CO2浓度可以抑制该拮抗菌在低温下生长,但将其移到常温下培养2d后即可生长。另外,5%或15%CO2单独使用不能抑制Alternariaalternata(1×104个孢子/mL,15μL)在红灯樱桃果实上萌发,但可极显著地抑制其病斑在樱桃果实上的扩展速度。R.glutinis悬浮液(108cfu/mL)与5%或15%CO2结合使用则可完全抑制A.alternata在樱桃果实上生长。The yeast antagonist Rhodotorula glutinis grew rapidly under the roo m temperature of20～25℃.The concentration of20%CO 2 did not inhibit the growth of R.glutinis,but there was negative relations hip between the expansion of colony di ameter and the CO 2 concentrations(0～20%)(r=-0.8999～-0.9383).R.gl utinis was more sensitive to high CO 2 at low temperature(1℃)than at room temperature.Although it did not grow in the concentration of CO 2 more than15%at low tem perature,R.glutinis grew rapidly after being tra nsferred to room temperature for two days.CO 2 at the concentration of5%or15%did not inhibit the disease incidence of Alternaria alternata on the sweet cherry fruit,but significantly inhibited the expansion of disease lesion.R.glutinis(10 8 cfu/mL)combined with5%or15%of CO 2 could completely inhibit the growth of A.alternata on sweet cherry fruit.

关 键 词：RHODOTORULA glutinis Alternaria ALTERNATA 甜樱桃 生物防治 

分 类 号：S662.5[农业科学—果树学]