Biocontrol of Postharvest Fungal Pathogens by Yeasts Isolated from Fruits and Marine Source
首发时间:2007-12-24
Abstract:Fruit wounds and marine resources were utilized to screen for potential antagonists to postharvest rot of cherry tomato. Biocontrol activity of a total of 34 yeasts isolates were tested, among which four isolates were selected with the best efficacy in reducing the decay rate of Alternaria Alternata and Botrytis cinerea. One of the marine yeast isolated from East China Sea was identified as Rhodosporidium paludigenum Fell & Tallman, which has not been described previously as a biocontrol agent. The application of R. paludigenum is also effective for other postharvest rot of fruits. Its efficacy declined to a 36% reduction in pear, a 33% reduction in persimmon and an 69% reduction in Chinese jujube after one week of storage.
keywords: antagonists cherry tomato biological control postharvest Alternaria. Alternata Botrytis cinerea Rhodosporidium paludigenum
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番茄采后病害生物防治新菌种的筛选
摘要:本文从中国东海近海海域采集海水样本,分离得到一株对樱桃番茄采后链格孢病害和柑橘采后指状青霉病害均具有较好的抑菌效果海洋酵母。该菌株经英国国际微生物研究所(CABI Bioscience Identification Services)鉴定为Rhodosporidium paludigenum Fell & Tallman。 R. paludigenum与从果实表面分离的拮抗菌罗伦隐球酵母和粘红酵母相比具有更高的耐盐性。只有当NaCl浓度达到16%时,菌体生长才会受到抑制。从R. paludigenum的生长曲线可以看出,R. paludigenum的生长没有明显的延滞期(Lag phase),到27 h时,酵母细胞数目达到最高值。
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No.1731993091119848****
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