000			02853cab a2200301Ia 45 0
001			u187055
003			SIRSI
008			101111s2008 ua ss b eng d
040			_aEAL
041			_aeng _bara
090			_aART JPCES V16 NO1-2 9
100	1		_aAbdel-Aty, Ahmed S.
240	1	0	_aJournal of pest control and environmental sciences, 2008 v. 16 (1-2) _h[electrnoic resource].
245	1	0	_aPreliminary evaluation of certain benzylidine and pyrazole derivatives against wood decay fungi _h[electrnoic resource].
246	1	5	_aتقييم بعض مشتقات البنزيليدين والبيرازول على الفطريات المحللة للخشب.
300			_ap.111-125.
504			_aIncludes references.
520			_aThree benzylidine derivatives; dibenzylidineacetone (1,5-diphenyl penta-I,4dien- 3-one) (1); dibenzylidine acetylacetone (1,7-diphenyl hepta-I,6-dien-3,5dione) (2) and benzylidine acetophenone (l,3-diphenyl propen-3--one) (Chalcone) (3) as well as three pyrazole derivatives; 3,5-dimethylpyrazole (4). 3-methyl-I-phenylpyrazol-5-one (5) and 3-methyl-I-(2,4-dinitrophenyl)pyrazol- 5-one (6) were evaluated for their fungitoxic effects against the white rot fungus Coriolus versicolor and the brown rot fungus Gloeophyllum trabeum. In vitro measurements, relationship between the chemical structure and the fungitoxicity of both studied derivatives was conducted. Compound 6 was the most active derivative with IC₅₀ of 19.6 µg/ml against C. versicolor and 112.7 J.1g/ml against G. trabeum. The two active compounds (compounds 3 and 6) were tested in vivo on poplar wood (Populus nigra) and Scots pine sapwood (Pinus sylvestris) specimens using mini-blocks technique. Different concentrations of these compounds were examined using C. versicolor and G. trabeum for leached and unleached wood samples. After six weeks of fungal exposure, compound 6 proved a significant effectiveness against both tested fungi with mass loss ± SE equaled 13.67% ± 0.54 and 14.47% ± 0.34 in case of C. versicolor and G. trabeum, respectively in the unleached specimens comparing with 41.27% ± 0.43 and 41.53% ± 0.42 in control. These mass loss percentages were 23.87% ± 0.6 [ and 24.80% ± 0.35 in case of compound 3 in the same array. Their performance in leached samples was detected for both tested compounds with percentage of mass loss exceeded 25% for the two wood specimens under investigation.
546			_aSummary in Arabic.
650		0	_aWood-decaying fungi.
650		0	_aPyrazolones.
650		0	_aTrametes versicolor.
650		3	_aGloeophyllum trabeum.
700	1		_aMohareb, Ahmed S. O.
773	0		_tJournal of Pest Control and Environmental Sciences. _g2008.v.16(1-2) _x1110-7308 _7nnas _wu186894
856	4	0	_uhttp://nile.enal.sci.eg/EALE/2008/JPCES/1608/1.2/111.pdf _zFull Text Article
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