000			02699cab a2200349Ia 45 0
001			u211559
003			SIRSI
008			091014s2015 ua ss b 0 eng d
040			_aEAL
041			_aeng _bara
090			_aART MJAR V40 No5 2
100	1		_aGhazal, F. M.
240	1	0	_aMinufiya journal of agricultural research, 2015 V.40 (5) _h[electronic resource].
245	1	0	_aCharacterization and identification of nitrogen fixing cyanobacteria in Egyptian sandy and alluvial (clay loam) soils _h[electronic resource].
246	1	5	_aوصف وتعريف السيانوبكتيريا المثبتة للنيتروجين الجوي في الأراضي الرملية والرسوبية (الطينية طميية) المصرية.
300			_aP.1261-1271
504			_aIncludes reference
520			_aSamples of two different soils were collected from the surface layer (0- 30 cm) of El- lsmailia Research Station (sandy soil) (El- lsmailia Governorate) (30°35' 41.901" N, 32"16'45.834" E) and Sids Res. Farm (alluvial clay loam soil) (Beni Swef Governorate) (29" 4' 54.349" N, 31° 5' 25. 775" E), Agric. Res. Center, Giza Egypt, to isolate the prevailing cyanobacterial inhabitants. Characterization of the cyanobacterial biomass production and nitrogen fixing efficiency (nitrogenase activity) along 5 weeks incubation periods were also tested. Results revealed that, the six isolated cyanobacterial strains identified as Nostoc muscorum, Nostoc commune, Nostoc linckia, Nostoc ellipsosporum, Anabaena variabilis and Anabaena orientalis, and found to be commonly filamentous heterocystous nitrogen fixing agents. Nostoc muscorum recorded the highest biomass, followed by Anabaena variabilis, Anabaena orientalis. Nostoc linckia, Nostoc ellipsosporum and Nostoc commune. While, for nitrogenase activity, N. muscorum and A. variabilis gave the highest values against the others namely N. commune and N. linckia. Some of those cy§lnobacterial strains, i.e., N. muscorum and A. variabilis can be a promise to support and improve the fertility of soil, due to their high efficiency to fix the atmospheric nitrogen when inoculating the cropped soils.
546			_aSummary in arabic.
650		0	_aCyanobacteria _xIdentification
650		0	_aSoil microbiology
650		0	_aNitrogen-fixing bacteria
650		0	_aClay soils
650		0	_aSandy soils
700	1		_aEl-Beltagy, A. E.
700	1		_aEl-Shinnawi, M. M.
700	1		_aHanfy, Wafaa M.
700	1		_aSalem, Gehan S.
773	0		_tMinufiya Journal of Agricultural Research. _g2015.v.40(5) _x1110-0265 _7nnas _wu158151
856	4	0	_uhttp://nile.enal.sci.eg/EALE/2015/MJAR/4015/5/1261.pdf _zFull Text Article.
596			_a1
942			_cAR _2lcc
999			_c60557 _d60557