000			02556nab a22004097a 4500
001			G89522
003			MX-TxCIM
005			20220607212255.0
008			210914s2006 xxu|||p|op||| 00| 0 eng d
022			_a0885-5765
024	8		_ahttps://doi.org/10.1016/j.pmpp.2006.04.003
040			_aMX-TxCIM
041			_aeng
090			_aCIS-4835
100	1		_aMercado Vergnes, D. _922893
245	0	0	_aEffect of growth stage on host sensitivity to helminthosporol toxin and susceptibility to Cochliobolus sativus causing spot blotch on wheat
260			_aUSA : _bElsevier, _c2006.
340			_aPrinted|Computer File
500			_aPeer review
500			_aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0885-5765
520			_aFive wheat genotypes with differing field resistance to Cochliobolus sativus were tested in greenhouse conditions for their reaction to 1.0 mM helminthosporol (HL) toxin and for their resistance to the pathogen at the 4-leaf seedling, booting, anthesis completed and late milk grain stages. HL caused distinctly necrotic and chlorotic lesions only on the adult plants of highly susceptible genotypes Ciano T-79 and Sonalika. The level of toxin sensitivity and disease severity increased with adult plant growth stage, suggesting that susceptibility is related to plant physiology. However, genotype BL 1473 was found to be susceptible to the fungus but insensitive to the toxin, indicating the limitations of using the toxin as a screening tool for resistance. The results confirm earlier studies which showed a lack of correlation between resistance at the seedling stage and field observations. This underlines the importance of field screening for improving resistance to spot blotch in wheat.
536			_aResearch and Partnership Program
546			_aText in English
594			_aINT1237
650		7	_927115 _aBipolaris sorokiniana _2AGROVOC
650		7	_91310 _aWheat _2AGROVOC
650		7	_91296 _aTriticum aestivum _2AGROVOC
650		7	_98659 _aLeaf Blotch _2AGROVOC
650		7	_99975 _aPhytotoxins _2AGROVOC
650		7	_918716 _aResistance to chemicals _2AGROVOC
700	1		_aRenard, M.E. _922895
700	1		_9826 _aDuveiller, E. _gDG's Office _8INT1237
700	1		_922659 _aMaraite, H.
773	0		_tPhysiological and Molecular Plant Pathology _n634457 _gv. 68, no. 1-3, p. 14-21 _dUSA : Elsevier, 2006. _wG444662 _x0885-5765
856	4		_yAccess only for CIMMYT Staff _uhttps://hdl.handle.net/20.500.12665/1690
942			_cJA _2ddc _n0
999			_c26476 _d26476