Phylogenetic relationship of Phytophthora cryptogea Pethybr. &amp; Laff and P. drechsleri Tucker

Mostowfizadeh‐Ghalamfarsa, Reza; Panabières, Franck; Banihashemi, Z.; Cooke, D. E. L.

doi:10.1016/j.funbio.2010.02.001

Cited by 25 publications

(6 citation statements)

References 34 publications

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“…One clade 8 species complex where phylogenetic resolution has been elusive is P. cryptogea and the closely related species P. drechsleri. The multigene analysis of Mostowfizadeh-Ghalamfarsa et al (2010) confirmed that while P. drechsleri was monophyletic, the P. cryptogea complex formed three well-defined phylogenetic groups with group I closely affiliated with P. erythroseptica and group II and III as a separate clade (group III isolates have been reported as the provisional species, P. sp. kelmania; Martin et al 2014).…”

Section: Molecular Phylogenymentioning

confidence: 79%

One stop shop: backbones trees for important phytopathogenic genera: I (2014)

et al. 2014

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Many fungi are pathogenic on plants and cause significant damage in agriculture and forestry. They are also part of the natural ecosystem and may play a role in regulating plant numbers/density. Morphological identification and analysis of plant pathogenic fungi, while important, is often hampered by the scarcity of discriminatory taxonomic characters and the endophytic or inconspicuous nature of these fungi. Molecular (DNA sequence) data for plant pathogenic fungi have emerged as key information for diagnostic and classification studies, although hampered in part by non-standard laboratory practices and analytical methods. To facilitate current and future research, this study provides phylogenetic synopses for 25 groups of plant pathogenic fungi in the Ascomycota, Basidiomycota, Mucormycotina (Fungi), and Oomycota, using recent molecular data, up-to-date names, and the latest taxonomic insights. Lineagespecific laboratory protocols together with advice on their application, as well as general observations, are also provided. We hope to maintain updated backbone trees of these fungal lineages over time and to publish them jointly as new data emerge. Researchers of plant pathogenic fungi not covered by the present study are invited to join this future effort. Bipolaris, Botryosphaeriaceae,

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Section: Molecular Phylogenymentioning

confidence: 79%

One stop shop: backbones trees for important phytopathogenic genera: I (2014)

et al. 2014

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“…Previously, another pathogen of Gerber daisy, P. drechsleri, which is closely related to P. cryptogea (13), was partially controlled with a 3-day postinoculation drench application of Alude at 12.85 fl oz/100 gal (9). In another pathosystem with Phytophthora root rot of azalea caused by P. cinnamomi, phosphite fungicides were quite effective in prevention of disease (1).…”

Section: Phytophthora Crown and Root Rot Developmentmentioning

confidence: 99%

Efficacy of Fungicides and Biopesticides for Management of Phytophthora Crown and Root Rot of Gerber Daisy

Benson

Parker

2011

Plant Health Progress

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Several fungicides and biopesticides were evaluated for control of Phytophthora crown and root rot of Gerber daisy caused by P. cryptogea, a frequently encountered pathogen in greenhouse production. In greenhouse trials, biopesticides were applied 3 to 5 days before inoculation with P. cryptogea, while fungicides were applied at the time of inoculation. Efficacy of the treatments was assessed according to fresh plant top weights and root rot ratings at the end of experiments. Phosphite salt fungicides such as AgriFos, Aliette, Alude, Magellan and Vital sprayed to run off prior to inoculation were ineffective. Similarly, the strobulurins (Disarm, Heritage, and Insignia) as a drench and the biopesticides (Muscodor albus, Remedier, and Taegro) incorporated or as a drench failed to prevent root and crown rot and collapse of plants. Adorn as a drench at 2 fl oz/100 gal prevented Phytophthora crown and root rot in two of three trial years. Fenstop as a drench at 14 fl oz/100 gal or Orvego as a drench at rates of 22.5 to 34 fl oz/100 gal consistently controlled disease in three years of trials. Segway as a drench at 6 fl oz/100 gal varied in efficacy but in all trials, disease development was less than the non-treated, inoculated control. Because the effective fungicides are in different Fungicide Resistance Action Committee codes, growers have valuable rotation options for managing crown and root rot caused by P. cryptogea on Gerber daisy and avoiding pathogen resistance in the Phytophthora populations. Accepted for publication 18 February 2011. Published 12 May 2011.

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“…The discrimination of these species has long been a controversial issue. Mostowfizadeh‐Ghalamfarsa et al (2010) suggested P. erythroseptica as a secondarily derived homothallic form of P. cryptogea , while other phylogenetic analyses of Phytophthora species (Martin et al, 2014) considered P. erythroseptica as a distinct species. Safaiefarahani et al (2015) reevaluated the P. cryptogea species complex and divided P. cryptogea sensu lato into distinct species: P. cryptogea sensu stricto, P. erythroseptica , and P .…”

Section: Discussionmentioning

confidence: 99%

Morphological and molecular characterization of Phytophthora species associated with root and crown rot of pomegranate in Iran

Ghaderi

Habibi

2020

Plant Pathology

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The purpose of this research was to identify the pathogens causing root and crown rot in major pomegranate‐growing areas of Iran. Infected tissue samples were collected from trees with symptoms from 49 pomegranate orchards in four provinces of Iran: Fars, Markazi, Isfahan, and Kohgiluyeh va Boyer‐Ahmad. In total, 23 Phytophthora spp. isolates were obtained, which were identified as P. cryptogea species complex (12 isolates) and P. cinnamomi (11 isolates) based on morphological characters. Molecular confirmation of identification was performed by inference of phylogeny of ITS‐rDNA regions, β‐tubulin gene, and the mitochondrial gene cytochrome c oxidase subunit 1. The results of our phylogenetic analysis confirmed the morphological identification of P. cinnamomi isolates and placed them in Clade 7c of Phytophthora. In addition, the P. cryptogea species complex isolates, despite morphological similarities, were in fact four distinct species including P. cryptogea sensu stricto (two isolates), P. pseudocryptogea (one isolate), P. sp. kelmania (one isolate), and P. erythroseptica (six isolates). This is the first report of pomegranate root and crown rot caused by P. cinnamomi and P. cryptogea species complex.

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Phylogenetic relationship of Phytophthora cryptogea Pethybr. & Laff and P. drechsleri Tucker

Cited by 25 publications

References 34 publications

One stop shop: backbones trees for important phytopathogenic genera: I (2014)

One stop shop: backbones trees for important phytopathogenic genera: I (2014)

Efficacy of Fungicides and Biopesticides for Management of Phytophthora Crown and Root Rot of Gerber Daisy

Morphological and molecular characterization of Phytophthora species associated with root and crown rot of pomegranate in Iran

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