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藻类提取物对番茄枯萎病原菌尖孢镰刀菌番茄专化型菌丝生长的抑制作用

Inhibitory Effect of Algal Extracts on Mycelial Growth of the Tomato-Wilt Pathogen, Fusarium oxysporum f. sp. lycopersici.

作者信息

Kim Jiyoung, Kim Jeong-Dong

机构信息

Institute of Industrial Biotechnology, Department of Biological Engineering, Inha University, Incheon 402-751, Korea.

出版信息

Mycobiology. 2008 Dec;36(4):242-8. doi: 10.4489/MYCO.2008.36.4.242. Epub 2008 Dec 31.

Abstract

The present study was undertaken to explore the inhibitory effect of cyanobacterial extracts of Nostoc commune FA-103 against the tomato-wilt pathogen, Fusarium oxysporum f. sp. lycopersici. In an optimal medium, cell growth, antifungal activity, and antifungal compound production could be increased 2.7-fold, 4.1-fold, and 13.4-fold, respectively. A crude algal extract had a similar effect as mancozeb at the recommended dose, both in laboratory and pot tests. In vitro and in vivo fungal growth, spore sporulation and fungal infection of wilt pathogen in tomato seeds were significantly inhibited by cyanobacterial extracts. Nostoc commune FA-103 extracts have potential for the suppression of Fusarium oxysporum f. sp. lycopersici.

摘要

本研究旨在探讨普通念珠藻FA - 103的蓝藻提取物对番茄枯萎病病原菌尖孢镰刀菌番茄专化型的抑制作用。在优化培养基中,细胞生长、抗真菌活性和抗真菌化合物产量分别可提高2.7倍、4.1倍和13.4倍。在实验室和盆栽试验中,粗藻类提取物在推荐剂量下与代森锰锌具有相似的效果。蓝藻提取物显著抑制了番茄种子中枯萎病原菌的体外和体内真菌生长、孢子形成以及真菌感染。普通念珠藻FA - 103提取物具有抑制尖孢镰刀菌番茄专化型的潜力。

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本文引用的文献

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Fusarium oxysporum and its biocontrol.尖孢镰刀菌及其生物防治
New Phytol. 2003 Mar;157(3):493-502. doi: 10.1046/j.1469-8137.2003.00700.x.
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