000			02740nab a22004577a 4500
999			_c12581 _d12581
001			G38942
003			MX-TxCIM
005			20211006073357.0
008			121211s1992 ne |||p op||| | eneng d
022			_a0301-486X
022			_a1573-0832 (Online)
024	8		_ahttps://doi.org/10.1007/BF00442777
040			_aMX-TxCIM
041	0		_aeng
043			_aNL
072		0	_aF01
072		0	_aH20
090			_aCIS-1682
100	1		_aHock, J. _9122
245	1	0	_aSequential development of pathogens in the maize tarspot disease complex
260			_aNetherlands : _bSpringer, _c1992.
340			_aPrinted
500			_aPeer review
520			_aThe tarspot complex is caused by the interaction of Phyllachora maydis and Monographella maydis. Coniothyrium phyllachorae, possibly a mycoparasite, is found in older ascostromata of P. maydis, which always appears first causing tarspot. M. maydis follows and is responsible for the damaging “fisheye” symptom. The fisheye symptom is always associated with a tarspot in the center of the lesion, whereas 12 to 20% of the Phyllachora ascostromata remained free of M. maydis. Inoculations of maize leaves with the Microdochium anamorph of the Monographella (usually produced in lesions) failed to produce infections. Some infections with M. maydis were, however, obtained under unusual conditions in the field. Inoculations onto tarspots in the laboratory were unsuccessful, but in field experiments inoculations with conidia of M. maydis enhanced severity of the tarspot complex. Fisheye symptoms of the complex naturally appear 2 to 7 days after the manifestation of P. maydis. This is followed a week later by the appearance of M. maydis which became predominant in the lesions and is associated with empty perithecia of P. maydis. In the early stages of the tarspots pycnidia of the anamorph of P. maydis, Linochora sp., could occasionally be observed. Ascomata of M. maydis were rare in the field. Of the 36 genetic materials of CIMMYT tested, 30 developed the fisheye symptom, 4 tarspots only and 2 remained free of symptoms.
546			_aText in English
591			_aR92ANALY|Springer|MP|MIC 12259-R|3
592			_aDE-JLU 1989 HOCK D r
595			_aCSC
650		7	_aPhyllachorales _2AGROVOC _912813
650		7	_aMonographella _2AGROVOC _96335
650		7	_aConiothyrium _2AGROVOC _912814
650		7	_91314 _aZea mays _2AGROVOC
650		7	_aPlant diseases _gAGROVOC _2 _91206
700	1		_aDittrich, U. _9478
700	1		_aRenfro, B.L. _9277
700	1		_aKranz, J. _9164
740			_a19553
740			_a38942
773	0		_tMycopathologia _n620088, 624653 _gv. 117, no. 3, p. 157-161 _dNetherlands : Springer, 1992. _x0301-486X
942			_cJA _2ddc _n0