Mechanisms employed by &ITDebaryomyces hansenii&IT in biological control of anthracnose disease on papaya fruit
Mechanisms employed by &ITDebaryomyces hansenii&IT in biological control of anthracnose disease on papaya fruit
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DOI：
10.1016/j.postharvbio.2018.01.015
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发表时间：
2018-05-01
影响因子：
7
通讯作者：
Rincon-Enriquez, Gabriel
中科院分区：
文献类型：
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作者：
Hernandez-Montiel, Luis G.;Gutierrez-Perez, Eric D.;Rincon-Enriquez, Gabriel
采用离体培养和原位测定的方法，研究了汉逊德巴利酵母对番木瓜炭疽病病原菌Colletotrichum gloeosporioides的生防作用机制。在体外，酵母表现出各种不同的拮抗机制，对植物病原真菌，包括：挥发性有机化合物（VOCs）的生产，β-1，3葡聚糖酶和蛋白酶活性，抑制孢子萌发，蔗糖，葡萄糖，果糖和总碳水化合物的竞争。结果表明，番木瓜炭疽病的发病率和病斑直径均高于对照。随着D浓度的增加，马拉多纳果实的产量显著下降。汉森尼。我们的研究表明D. Hansenii对番木瓜炭疽病有良好的防治效果。马拉多纳水果。
The mechanisms of action associated with the biocontrol capacity of Debaryomyces hansenii against Colletotrichum gloeosporioides, causal agent of anthracnose in papaya, were studied by means of in vitro and in situ assays. In vitro the yeast exhibited a variety of different antagonistic mechanisms against the phytopathogenic fungus including: volatile organic compounds (VOCs) production, beta-1, 3 glucanase and protease activity, inhibition of spore germination, and the competition for saccharose, glucose, fructose and total carbohydrates. Results in situ indicated that disease incidence and lesion diameter of anthracnose on papaya var. Maradol fruit was significantly reduced with a higher concentration of D. hansenii. Our study indicates that D. hansenii is an excellent agent of control to anthracnose disease on papaya var. Maradol fruit.