000 02715nab a22003977a 4500
999 _c61262
_d61254
001 61262
003 MX-TxCIM
005 20230918224823.0
008 200129s2019 it |||p|op||| 00| 0 eng d
022 _a0031-9465
022 _a1593-2095 (Online)
024 8 _ahttps://doi.org/10.14601/Phyto-10892
_zDOI is wrong in the original article
040 _aMX-TxCIM
041 _aeng
100 1 _911208
_aLaribi, M.
245 1 0 _aRace structure and distribution of Pyrenophora tritici-repentis in Tunisia
260 _aFirenze (Italy) :
_bFirenze University Press,
_c2019.
500 _aPeer review
500 _aOpen Access
520 _aTan spot, caused by Pyrenophora tritici-repentis (Ptr), is a widespread foliar disease of wheat, which is becoming important in North Africa particularly in Tunisia. To assess the pathogenic variation of Ptr in Tunisia, characterized 84 single conidium isolates of Ptr were characterized from durum wheat cultivars, sampled during the 2017-2018 cropping season. The virulence of isolates were assessed, under controlled conditions, on a standard differential set of six wheat genotypes. Ptr races 2, 4, 5, 6, 7 and 8 were identified, the first such information available for Tunisia. Race 2, commonly found in North America, South America and Asia, was identified for the first time in North Africa, at a low frequency of 5%. Races 5 and 7 were the most frequent, representing, respectively, 39% and 43% of the isolates tested. Only 8% of the isolates were classified as race 8, while 4% were identified race 6. Race 6 was only detected at the experimental station in the North Western region of Tunisia and in a nearby farm field. Only one Ptr isolate was avirulent on all six differential genotypes, and was therefore designated race 4. The identification of six races of Ptr on durum wheat demonstrates the high diversity of the pathogen population in Tunisia.
526 _aWC
_cFP3
546 _aText in English
650 7 _2AGROVOC
_99779
_aPhysiological races
650 0 _aPyrenophora tritici-repentis
_gAGROVOC
_92707
650 7 _2AGROVOC
_91142
_aHard wheat
650 7 _aPlant diseases
_gAGROVOC
_2
_91206
651 7 _2AGROVOC
_97119
_aTunisia
700 1 _97075
_aGamba, F. M.
700 1 _910303
_aHassine, M.
700 1 _aPawan Kumar Singh
_gGlobal Wheat Program
_8INT2868
_9868
700 1 _8INT3301
_9915
_aYahyaoui, A.H.
_gGlobal Wheat Program
700 1 _911209
_aSassi, K.
773 0 _dItaly : Mediterranean Phytopathological Union : Firenze University Press, 2019.
_gv. 58, no. 3, p. 473-483
_tPhytopathologia Mediterranea
_x0031-9465
856 4 _yOpen Access through DSpace
_uhttps://hdl.handle.net/10883/20655
942 _2ddc
_cJA
_n0