<i>Phytophthora niederhauserii</i> sp. nov., a polyphagous species associated with ornamentals, fruit trees and native plants in 13 countries

Abad, Z. Gloria; Abad, Jorge; Cacciola, S. O.; Pane, A.; Faedda, Roberto; Moralejo, Eduardo; Pérez‐Sierra, A.; Abad-Campos, Paloma; Álvarez, L. A.; Bakonyi, J.; Józsa, A.; Herrero, M.; Burgess, Treena I.; Cunnington, J. H.; Smith, Ian; Balcì, Y.; Blomquist, C. L.; Henricot, B.; Denton, G.; Spies, Chris; McLeod, A.; Belbahri, Lassaâd; Cooke, D. E. L.; Kageyama, Koji; Uematsu, Satoshi; Kurbetli, İlker; Deği̇rmenci̇, K.

doi:10.3852/12-119

Cited by 52 publications

(27 citation statements)

References 38 publications

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“…For the phylogenetic analyses of P. tyrrhenica and P. vulcanica all 16 previously known taxa from Clade 7a were included and P. cinnamomi (CBS 144.22) and P. niederhauserii (CBS 124086), both from Clade 7b, were used as outgroups (Abad et al 2014, Jung et al . 2017b).…”

Section: Methodsmentioning

confidence: 99%

Multiple new cryptic pathogenic Phytophthora species from Fagaceae forests in Austria, Italy and Portugal

Jung

Cacciola

et al. 2017

IMA Fungus

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During surveys of Phytophthora diversity in natural and semi-natural Fagaceae forests in Austria, Italy and Portugal, four new cryptic species were isolated from rhizosphere soil samples. Multigene phylogeny based on nuclear ITS, ß-tubulin and HSP90 and mitochondrial cox1 and NADH1 gene sequences demonstrated that two species, P. tyrrhenica and P. vulcanica spp. nov., belong to phylogenetic Clade 7a, while the other two species, P. castanetorum and P. tubulina spp. nov., clustered together with P. quercina forming a new clade, named here as Clade 12. All four new species are homothallic and have low optimum and maximum temperatures for growth and very slow growth rates at their respective optimum temperature. They differed from each other and from related species by a unique combination of morphological characters, cardinal temperatures, and growth rates. Pathogenicity of all Phytophthora species to the root system of their respective host species was demonstrated in soil infestation trials.

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Section: Methodsmentioning

confidence: 99%

Multiple new cryptic pathogenic Phytophthora species from Fagaceae forests in Austria, Italy and Portugal

Jung

Cacciola

et al. 2017

IMA Fungus

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“…Phytophthora niederhauserii from Clade 7 damaged shoots and roots of all species tested except C. calophylla , and killed the same species as P. cinnamomi (also a Clade 7 species), supporting previous data showing it has a wide host range, including horticultural species and gymnosperms (Abad et al ., ). The reported host range for P. niederhauserii includes over 33 plant species in 25 families, and strongly suggests that the species is a polyphagous pathogen emerging from nurseries of ornamental plants in Europe, the USA, Australia and possibly other parts of the world (Abad et al ., ). It was discovered in fruit tree nurseries in Spain and Turkey (Perez‐Sierra et al ., ; Kurbetli & Degirmenci, ), and is reported from many other countries including Italy, Hungary and Norway (Abad et al ., ).…”

Section: Discussionmentioning

confidence: 97%

“…The reported host range for P. niederhauserii includes over 33 plant species in 25 families, and strongly suggests that the species is a polyphagous pathogen emerging from nurseries of ornamental plants in Europe, the USA, Australia and possibly other parts of the world (Abad et al ., ). It was discovered in fruit tree nurseries in Spain and Turkey (Perez‐Sierra et al ., ; Kurbetli & Degirmenci, ), and is reported from many other countries including Italy, Hungary and Norway (Abad et al ., ). In Australia, P. niederhauserii has been detected on imported nursery plants in the Northern Territory and Western Australia (Davison et al ., ).…”

Section: Discussionmentioning

confidence: 97%

Pathogenicity of 21 newly described Phytophthora species against seven Western Australian native plant species

et al. 2018

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The pathogenicity of some Phytophthora species recently described from Western Australia, together with P. cinnamomi as a control, was tested against seven Western Australian native plant species in the glasshouse. Host species were Banksia grandis, B. littoralis, B. occidentalis, Casuarina obesa, Corymbia calophylla, Eucalyptus marginata and Lambertia inermis. Twenty‐two Phytophthora species were grown on a vermiculite, millet seed and V8 substrate and used as soil inoculum when the plant hosts were approximately 3 months old. Pathogenicity was assessed after 6 weeks and plants were scored for death, root damage, and percentage reduction of shoot growth compared with control plants. The pathogenicity of P. cinnamomi was confirmed. Phytophthora niederhauserii was shown to be similar to P. cinnamomi in pathogenicity and of concern ecologically. Other species that killed one or more hosts were P. boodjera, P. constricta, P. elongata, P. moyootj and P. rosacearum, while P. condilina, P. gibbosa, P. gregata, P. litoralis and P. ‘personii’ caused significant reduction to shoot and/or root growth, but did not kill plants. Host species susceptible to the highest number of Phytophthora species were B. grandis, B. littoralis, B. occidentalis and E. marginata. No Phytophthora species tested killed C. calophylla.

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“…Indeed, they are responsible for major diseases in crops (Abad et al, 2014), forests (Rizzo et al, 2005;Duran et al, 2010) and aquaculture (Phillips et al, 2008). Some emergent pathogens have been recently detected and are currently causing considerable losses in both agriculture (Kamoun et al, 2015) and fish farms (de la Bastide et al, 2015).…”

Section: Introductionmentioning

confidence: 98%

High-throughput sequencing reveals diverse oomycete communities in oligotrophic peat bog micro-habitat

et al. 2016

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a b s t r a c tOomycete diversity has been generally underestimated, despite their ecological and economic importance. Surveying unexplored natural ecosystems with up-to-date molecular diversity tools can reveal the existence of unsuspected organisms. Here, we have explored the molecular diversity of five microhabitats located in five different oligotrophic peat bogs in the Jura Mountains using a highthroughput sequencing approach (Illumina HiSeq 2500). We found a total of 34 different phylotypes distributed in all major oomycete clades, and comprising sequences affiliated to both well-known phylotypes and members of undescribed, basal clades. Parasitic species, including obligate forms were well-represented, and phylotypes related to highly damaging invasive pathogens (Aphanomyces astaci: X1100 and Saprolegnia parasitica: X1602) were retrieved. Microhabitats differed significantly in their community composition, and many phylotypes were strongly affiliated to free water habitats (pools). Our approach proved effective in screening oomycete diversity in the studied habitat, and could be applied systematically to other environments and other fungal and fungal-like groups.

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Phytophthora niederhauserii sp. nov., a polyphagous species associated with ornamentals, fruit trees and native plants in 13 countries

Cited by 52 publications

References 38 publications

Multiple new cryptic pathogenic Phytophthora species from Fagaceae forests in Austria, Italy and Portugal

Multiple new cryptic pathogenic Phytophthora species from Fagaceae forests in Austria, Italy and Portugal

Pathogenicity of 21 newly described Phytophthora species against seven Western Australian native plant species

High-throughput sequencing reveals diverse oomycete communities in oligotrophic peat bog micro-habitat

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