First Report of Powdery Mildew of European Plum Caused by <i>Podosphaera tridactyla</i> in Mexico

García-Ruiz, M. T.; Galicia-Buendia, N. G.; Leyva-Mir, Santos Gerardo; Correia, Kamila C.; Nieto-López, E. H.; Camacho-Tapia, Moisés; Tovar‐Pedraza, Juan Manuel

doi:10.1094/pdis-08-18-1371-pdn

Cited by 2 publications

(1 citation statement)

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“…Powdery mildew infects leaves and stems, reducing the plant’s photosynthetic capabilities and fruit production [ 8 ]. Severe infection causes cupping and malformation of the leaves and infected fruit, resulting in further crop losses [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Re-Evaluation of the Podosphaera tridactyla Species Complex in Australia

Smith

May

Kaur

et al. 2021

JoF

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The Podosphaera tridactyla species complex is highly variable morphologically and causes powdery mildew on a wide range of Prunus species, including stone fruit. A taxonomic revision of the Po. tridactyla species complex in 2020 identified 12 species, seven of which were newly characterised. In order to clarify which species of this complex are present in Australia, next generation sequencing was used to isolate the fungal ITS+28S and host matK chloroplast gene regions from 56 powdery mildew specimens of stone fruit and ornamental Prunus species accessioned as Po. tridactyla or Oidium sp. in Australian reference collections. The specimens were collected in Australia, Switzerland, Italy and Korea and were collected from 1953 to 2018. Host species were confirmed using matK phylogenetic analysis, which identified that four had been misidentified as Prunus but were actually Malusprunifolia. Podosphaera species were identified using ITS+28S phylogenetic analysis, recognising three Podosphaera species on stone fruit and related ornamental Prunus hosts in Australia. These were Po.pannosa, the rose powdery mildew, and two species in the Po. tridactyla species complex: Po. ampla, which was the predominant species, and a previously unidentified species from peach, which we describe here as Po. cunningtonii.

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Section: Introductionmentioning

confidence: 99%