Genetic diversity and host range of powdery mildews on Papaveraceae

被引:17
作者
Pastircakova, Katarina [1 ]
Jankovics, Tuende [2 ]
Komaromi, Judit [3 ]
Pintye, Alexandra [2 ]
Pastircak, Martin [4 ]
机构
[1] Slovak Acad Sci, Branch Woody Plant Biol, Inst Forest Ecol, Akad 2, SK-94901 Nitra, Slovakia
[2] Hungarian Acad Sci, Agr Res Ctr, Inst Plant Protect, POB 102, H-1525 Budapest, Hungary
[3] Hungarian Acad Sci, Agr Res Ctr, Inst Agr, Brunszv U 2, H-2462 Martonvasar, Hungary
[4] Natl Agr & Food Ctr, Res Inst Plant Prod, Bratislavska Cesta 122, SK-92168 Piestany, Slovakia
基金
匈牙利科学研究基金会;
关键词
Erysiphaceae; Eschscholzia; Macleaya; ITS; 28S nrDNA; Morphology; COMPREHENSIVE PHYLOGENETIC ANALYSIS; ERYSIPHE-MACLEAYAE; 1ST REPORT; MOLECULAR-IDENTIFICATION; OIDIUM-NEOLYCOPERSICI; CHELIDONIUM-MAJUS; FUNGI; SP; AQUILEGIAE; SEQUENCES;
D O I
10.1007/s11557-016-1178-8
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Because of the strong morphological similarity of the powdery mildew fungi that infect papaveraceous hosts, a total of 39 samples were studied to reveal the phylogeny and host range of these fungi. ITS and 28S sequence analyses revealed that the isolates identified earlier as Erysiphe cruciferarum on papaveraceous hosts represent distinct lineages and differ from that of E. cruciferarum sensu stricto on brassicaceous hosts. The taxonomic status of the anamorph infecting Eschscholzia californica was revised, and therefore, a new species name, Erysiphe eschscholziae, is proposed. The taxonomic position of the Pseudoidium anamorphs infecting Glaucium flavum, Meconopsis cambrica, Papaver dubium, and Stylophorum diphyllum remain unclear. This study revealed that Erysiphe macleayae exhibits a specific host range different from that of E. cruciferarum, the common pathogen of papaveraceous hosts. Although E. macleayae occurred naturally on Macleaya cordata, Macleaya microcarpa, M. cambrica, and Chelidonium majus only, our inoculation tests revealed that the fungus was capable of infecting Argemone grandiflora, Glaucium corniculatum, Papaver rhoeas, and Papaver somniferum, indicating that these plant species may also be taken into account as potential hosts. Erysiphe cruciferarum originating from P. somniferum was not able to infect A. grandiflora, C. majus, E. californica, M. cordata, and P. rhoeas. The emergence of E. macleayae on M. microcarpa is reported here for the first time from the Czech Republic and Slovakia. The appearance of chasmothecia of E. macleayae on C. majus in Slovakia was reported, as well. Erysiphe cruciferarum was identified on G. corniculatum and reported here for the first time from Slovakia.
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页数:18
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