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茶树油粕粗提物对柑橘青绿霉病发生的抑制作用 被引量:9
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作者 孟祥春 毕方铖 +1 位作者 丁心 邓其海 《中国生物防治学报》 CSCD 北大核心 2015年第2期236-241,共6页
首先用乙醇提取得到茶树油粕粗提物,研究了粗提物对柑橘青霉和绿霉病原菌离体生长和活体致病的防控效果。离体抑菌试验表明,茶树油粕粗提物可显著抑制离体培养的青霉和绿霉病菌的生长,当提取物浓度为10 mg/m L以上时,对青霉菌和绿霉菌... 首先用乙醇提取得到茶树油粕粗提物,研究了粗提物对柑橘青霉和绿霉病原菌离体生长和活体致病的防控效果。离体抑菌试验表明,茶树油粕粗提物可显著抑制离体培养的青霉和绿霉病菌的生长,当提取物浓度为10 mg/m L以上时,对青霉菌和绿霉菌菌落生长的抑制率分别达100%和70%,而相同浓度茶皂素的抑制率仅有30%和58%;活体接种试验表明,茶树油粕粗提物可明显抑制青霉病病斑的扩展和贮藏过程中果实的发病率,而茶皂素对病斑扩展和果实发病率的控制没有明显作用。同未处理对照相比,50 mg/m L的粗提物对青霉病病斑扩展的抑制率达60%以上,将柠檬和砂糖橘果实贮藏过程中的发病率降低了25%~58%,而对果实的品质没有明显影响。本研究表明,茶树油粕粗提物对柑橘青绿霉病菌的离体和活体抑制效果显著优于茶皂素,暗示粗提物中含有除茶皂素之外的活性抑菌组分,有望开发成为防控柑橘采后病害的环境友好型的新型保鲜剂组分。 展开更多
关键词 茶树油粕 粗体物 青霉病 绿霉病
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Effect of Plumeria alba's Bioactive Extract against Colletotrichum gleosporoides in Vitro and in Vivo
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作者 Maryana Mohamad Nor Husna Hawa Mohd. Hassan +1 位作者 Nik Hairiah Nik Mohamad Ravi Muhammad Nor Omar 《Journal of Agricultural Science and Technology(B)》 2014年第3期195-199,共5页
Plant species in the genus Plumeria of Apocynaceae family are well known for their uses in traditional medicine antimicrobial activity. Plant materials from P. alba were extracted using Soxhlet apparatus and screened ... Plant species in the genus Plumeria of Apocynaceae family are well known for their uses in traditional medicine antimicrobial activity. Plant materials from P. alba were extracted using Soxhlet apparatus and screened for the control of anthracnose disease caused by Colletotrichum gleosporoides on fruit during post harvest storage. For in vitro, the crude extract of P. alba (stem bark and leaves) were completely inhibited conidial germination (sporulation test method) of Colletotrichum gleosporoides at all concentration tested except the lowest concentration (4.4 uL). In vivo studies show that percentage of infection on fruit after treated with both stem bark (11.11 ± 3.8) and leaves (15.55 ± 3.8) part, at 32,000 mg/L have no significant differences during seven days of storage at ambient temperatures. These results proved that P. alba extracted (stem bark and leaves) were found to be promising as an antifungal agent and to control anthracnose disease in fruits tested. 展开更多
关键词 P. alba Colletotrichum gleosporoides post harvest.
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