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对新收获及市售的8个品种苹果表皮微生物区系的分析表明,每克苹果表皮上细菌和真菌的含量分别为4.87 × 10~3CFU—7.38X10~5CFU和2.63X10~2CFU—4.75X10~2CFU.经分离纯化后得到细菌菌株273个,真菌菌株75个.以苹果贮存期两种主要病菌炭疽病菌和轮纹病菌为指示菌进行抑菌测定,得到拮抗性细菌菌株77个,真菌菌株20个.对其中拮抗性强的9个菌株在人工接种条件下测定,表明它们对苹果贮藏病害有不同程度防治作用,其中NA—W42和K’B—X71对轮纹病防治效果分别达96.3%和88.9%,PG—Wlla对炭疽病防治效果达55.6%.
The analysis on the microflora of apple epidermis of 8 cultivars newly harvested and commercialized showed that the contents of bacteria and fungi on epidermis per gram were 4.87 × 10 ~ 3CFU-7.38X10 ~ 5CFU and 2.63X10 ~ 2CFU-4.75X10 ~ 2CFU.After isolation and purification, 273 bacterial strains and 75 fungal strains were obtained.According to the antibacterial activity of anthracnose and rotten pathogen, two main pathogen of apple during storage, 77 strains of antagonistic bacteria and 20 strains of fungal strain 20 Among them, 9 antagonistic strains were tested under artificial inoculation conditions, indicating that they have different degrees of prevention and control of apple disease. Among them, the control effects of NA-W42 and K’B-X71 on ring rot disease were 96.3% And 88.9%, PG-Wlla on anthracnose prevention and treatment of up to 55.6%.