000			00595nab|a22002177a|4500
999			_c62894 _d62886
001			62894
003			MX-TxCIM
005			20210302214321.0
008			201107s2018||||xxu|||p|op||||00||0|eng|d
022			_a0031-949X
022			_a1943-7684 (Online)
024	8		_ahttps://doi.org/10.1094/PHYTO-03-17-0110-R
040			_aMX-TxCIM
041			_aeng
100	1		_aTroth, E.E.G. _917138
245	1	0	_aCompetition between Fusarium pseudograminearum and Cochliobolus sativus observed in field and greenhouse studies
260			_aSt. Paul, MN (USA) : _bAmerican Phytopathological Society, _c2018.
500			_aPeer review
500			_aOpen Access
520			_aAmong root pathogens, one of the most documented antagonisms is the suppression of Cochliobolus sativus by Fusarium (roseum) species. Unfortunately, previous studies involved single isolates of each pathogen and thus, provided no indication of the spectrum of responses that occur across the respective species. To investigate the variability in interactions between Cochliobolus sativus and Fusarium pseudograminearum, field and greenhouse trials were conducted that included monitoring of spring wheat plant health and monitoring of pathogen populations via quantitative real-time polymerase chain reaction. The interactions between two isolates of C. sativus and four isolates of F. pseudograminearum were explored in three geographically distinct wheat fields. To complement field trials and to limit potentially confounding environmental variables that are often associated with field studies, greenhouse trials were performed that investigated the interactions among and between three isolates of C. sativus and four isolates of F. pseudograminearum. Across field locations, C. sativus isolate Cs2344 consistently and significantly reduced Fusarium populations by an average of 20.1%. Similarly, F. pseudograminearum isolate Fp2228 consistently and significantly reduced C. sativus field populations by an average of 30.9%. No interaction was detected in the field between pathogen species with regards to disease or crop losses. Greenhouse results confirmed a powerful (>99%), broadly effective suppression of Fusarium populations by isolate Cs2344. Among greenhouse trials, additional isolate–isolate interactions were observed affecting Fusarium populations. Due to lower C. sativus population sizes in greenhouse trials, significant Fusarium suppression of C. sativus was only detected in one isolate–isolate interaction. This study is the first to demonstrate suppression of Fusarium spp. by C. sativus in field and greenhouse settings. These findings also reveal a complex competitive interaction between these two pathogen species that was previously unknown.
546			_aText in English
650		7	_94911 _aRoot rots _gAGROVOC
650		7	_aFusarium _2AGROVOC _92705
650		7	_aCochliobolus sativus _2AGROVOC _92193
650		7	_a Population dynamics _2AGROVOC _96651
700	1		_917139 _aJohnston, J.A.
700	1		_917140 _aDyer, A.T.
773	0		_gv. 108, no. 2, p. 215-222 _dSt. Paul, MN (USA) : American Phytopathological Society, 2018. _x0031-949X _tPhytopathology _w444676
856	4		_uhttps://doi.org/10.1094/PHYTO-03-17-0110-R _yClick here to access online
942			_cJA _n0 _2ddc