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Janisiewicz, W.J., Tworkoski, T.J. & Kurtzman, C.P. (2001): Biocontrol potential of Metschnikowia pulcherrima strains against blue mould of apple. Phytopathology, 91 , 1098-1108. Biocontrol potential of Metschnikowia pulcherrima

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Druvefors, U. A., Passoth, V. & Schnürer, J. (2003): The role of nutrient competition and ethyl acetate formation in the mode of action of the biocontrol agent Pichia anomala J121. 23rd International Specialised Symposium on Yeasts. 26-29 August 2003

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Dis. 98 , 55 – 61 . Ali , H. and Nadarajah , K. ( 2014 ): Evaluating the efficacy of Trichoderma spp and Bacillus subtilis as biocontrol agents against Magnaporthe grisea in rice . Australian J. Crop Sci. 8 , 1324 – 1335

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protease and phosholipase C are controlled by the global regulatory gene gacA in the biocontrol strain Pseudomonas fluorescens CHA0. FEMS Microbiol. Lett. 116, 155–160. Haas D

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The antagonistic effect of thirteen Pseudomonas aeruginosa and thirteen strains of other Pseudomonas species was studied on the soil-borne phytopathogenic Rhizoctonia solani and Fusarium solani fungi.  The inhibition of pathogen colony growth was tested with two different in vitro techniques using the same type of culture media. In case of the spread slant technique the antagonists induced a significantly stronger inhibition on the growth of pathogens than in case of spot transfer. Among the 26 investigated Pseudomonas strains, P. aeruginosa strains were generally more effective against the fungal pathogens. Rhizoctonia solani proved to be affected to a greater extent by the bacterial strains studied than the Fusarium solani representative. The possibility of in vitro strain selection of biocontrol microbes is being further discussed .

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Literature Amin , F. , Razdan , V. , Bhat , K. and Banday , S. ( 2010 ): Potential of Trichoderma species as biocontrol agents of soil borne fungal propagules . J. Phytology 2 , 38 – 41 . Balasuriya , A. and Kalaichelvan

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Eighteen isolates of fluorescent pseudomonads ad Bacillus spp. were isolated from the Meloidogyne incognita suppressive soils of tomato fields. These isolates were evaluated in the laboratory and green house for the biocontrol of M. incognita . Eight isolates were considered to have potential for the biocontrol of M. incognita on the basis of the antibiotic sensitivity, fluorescence produced by Pseudomonas , inhibitory effect on the hatching and penetration of M. incognita and root colonization of tomato root by these isolates. These 8 isolates (Pa22, Pf25, Pf27, Pa28, B22, B23, B27 and B28) were further tested for their biocontrol potential against M. incognita on tomato in a pot test. Out of 8 isolates, isolate B28 was the best in improving tomato growth of M. incognita inoculated plants. Isolate B28 also caused greater reductions in galling and multiplication of M. incognita on tomato while isolate Pa28 was found best in improving growth of plants without M. incognita .

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Acta Phytopathologica et Entomologica Hungarica
Authors: A. Kamalakannan, L. Mohan, K. Kavitha, S. Harish, R. Radjacommare, S. Nakkeeran, V. K. Parthiban, R. Karuppiah and T. Angayarkanni

, India. Asaka, O. and Shoda, M. (1996): Biocontrol of Rhizoctonia solani causing damping-off of tomato with Bacillus subtilis RB 14. Appl. Environ. Microbiol. 62, 4081–4085. Biocontrol

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Acta Biologica Hungarica
Authors: Wesam I. A. Saber, Khalid M. Ghoneem, Abdulaziz A. Al-Askar, Younes M. Rashad, Abeer A. Ali and Ehsan M. Rashad

References 1. Brewer , M. T. , Larkin , R. P. ( 2005 ) Efficacy of several potential biocontrol organisms against Rhizoctonia solani on potato . Crop Prot

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Elad, Y., Bhardwaj, S., Nitzani, Y., Rav-David, D. (2002): Biocontrol of Sclerotinia sclerotiorum by Trichoderma spp. resistance-inducing isolates as modified by spatial, temporal and host plant factors. Bulletin-OILB/SROP , 25 , 17

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