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Cereal Research Communications
Authors: Csaba Vágvölgyi, László Manczinger, Judit Krisch, Miklós Takó and Tamás Papp
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Virulence of the two isolates of Beauveria bassiana, BB2 and AM-118, were evaluated on adults of a predatory hemipteran, Andrallus spinidens Fabricius by conidial bioassay and enzymatic activities. Results of the bioassay revealed LC50 of 37×104 and 15×103 spore/ml for isolates BB2 and AM-118, respectively. Activities of chitinase, lipase and ALP showed the higher activity in the media inoculated by AM-118 while no statistical differences were observed in activity of ACP. Although no statistical differences were found in general protease and Pr1 activities but activity of Pr2 in AM-118 was significantly higher than that of BB2. Activity of general esterases demonstrated no statistical differences when α- and β-naphtyl acetate were used as substrates but activity of glutathione S-transferase in AM-118 was higher than that of BB2 by using CDNB and DCNB as specific reagents. Results of the current study indicated higher virulence of isolate AM-118 against adults of A. spinidens by lower LC50 value and higher activities of the enzymes involved in pathogenicity. Recruiting of these isolates against C. suppressalis must be considered by their adaptability of A. spinidens. Moreover, AM-118 has been isolated from rice fields of northern Iran, so it may somehow indicate a type of host-microorganism interaction.

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Fogarty, W. M., Kelly, C. T.: Microbial Enzymes and Biotechnology. 2nd ed., 1994, pp. 255-274. Microbial Enzymes and Biotechnology. 2nd ed. 255 274

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Godtfredsen, S. E.: Microbial lipases. In: Fogarty, W. M., Kelly, C. T. (eds). Microbial enzymes and biotechnology. Elsevier Appl Sci Publ, London. 1990, pp. 255

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Whitaker, J. R.: Microbial pectolytic enzymes. In Fogarty, W. M., Kelly, C. T. (eds): Microbial Enzymes and Biotechnology, 2nd Edition. Elsevier Applied Science Publishers, London, New York, 1991, pp. 133

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proteinases and biotechnology. In: Fogarty, W. M., Kelly, C. T. (eds) Microbial Enzymes and Biotechnology . Elsevier, London, pp. 227–254. Boyce C. O. L

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.) Microbial enzymes and biotechnology . Applied Science Publishers, London, pp. 131–182. Kelly C.T. Microbial enzymes and biotechnology

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. (1966): Degradation of plant cell wall and membrane by microbial enzymes. Physiological Plant Pathology 4, 316-335. Degradation of plant cell wall and membrane by microbial enzymes. Physiological

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Cereal Research Communications
Authors: T. Warzecha, T. Adamski, Z. Kaczmarek, M. Surma, P. Goliński, J. Perkowski, J. Chełkowski, H. Wiśniewska, K. Krystkowiak and A. Kuczyńska

147 577 590 Baidoo, S.K., Liu, Y.G., Yungblut, D. 1998. Effect of microbial enzyme supplementation on energy, amino acid digestibility and

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Acta Veterinaria Hungarica
Authors: Janka Petrilla, Gábor Mátis, Anna Kulcsár, Petra Talapka, Enikő Bíró, Máté Mackei, Hedvig Fébel and Zsuzsanna Neogrády

. , Korsbak , A. , Hastrup , T. and Rasmussen , P. B. ( 1996 ): Influence of added microbial enzymes on energy and protein availability of selected feed ingredients . Anim. Feed Sci. Techn. 60 , 311 – 319

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