نتایج جستجو برای: rhizoctonia solani ag

تعداد نتایج: 47855  

Journal: :Drug discoveries & therapeutics 2010
A Emam M Eweis M Elbadry

Bioassay-guided separation with an eye toward antifungal activity led to the isolation of the new alkaloid 5-(1̀,1̀-dimethylallyl)-8-hydroxyfuro[2-3-b] quinoline (1) and the known biscoumarin daphnoretin (2) as the active constituents of the chloroform extract obtained from the leaves of Ruta chalepensis. The structures of the metabolites were elucidated on the basis of their spectral characteris...

2018
Yusuke Kouzai Mamiko Kimura Megumi Watanabe Kazuki Kusunoki Daiki Osaka Tomoko Suzuki Hidenori Matsui Mikihiro Yamamoto Yuki Ichinose Kazuhiro Toyoda Takakazu Matsuura Izumi C. Mori Takashi Hirayama Eiichi Minami Yoko Nishizawa Komaki Inoue Yoshihiko Onda Keiichi Mochida Yoshiteru Noutoshi

Rhizoctonia solani is a soil-borne fungus causing sheath blight. In consistent with its necrotrophic life style, no rice cultivars fully resistant to R. solani are known, and agrochemical plant defense activators used for rice blast, which upregulate a phytohormonal salicylic acid (SA)-dependent pathway, are ineffective towards this pathogen. As a result of the unavailability of genetics, the i...

Journal: :Acta biochimica Polonica 2010
Sze Kwan Lam Tzi Bun Ng

From the seeds of Acacia confusa, a chitinase-like antifungal protein designated as acaconin that demonstrated antifungal activity toward Rhizoctonia solani with an IC₅₀ of 30±4 µM was isolated. Acaconin demonstrated an N-terminal sequence with pronounced similarity to chitinases and a molecular mass of 32 kDa. It was isolated by chromatography on Q-Sepharose, SP-Sepharose and Superdex 75 and w...

Journal: :Molecules 2015
Jialong Sun Yuanming Zhou

A series of pyrazole carboxamide and isoxazolol pyrazole carboxylate derivatives were designed and synthesized in this study. The structures of the compounds were elucidated based on spectral data (infrared, proton nuclear magnetic resonance and mass spectroscopy). Then, all of the compounds were bioassayed in vitro against four types of phytopathogenic fungi (Alternaria porri, Marssonina coron...

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