Pome and stone fruit trees as possible reservoir hosts for<i>Phaeoacremonium</i>spp., the causal agents of grapevine esca disease, in Iran

Arzanlou, Mahdi; Narmani, Abolfazl; Khodaei, Sima; Moshari, S.

doi:10.1080/03235408.2013.820387

Cited by 20 publications

(10 citation statements)

References 22 publications

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“… South Africa (this study) Olea europaea subsp. europaea Italy ( Crous & Gams 2000 );South Africa (this study); USA ( Úrbez-Torres et al 2013 ) Parrotia persica Iran ( Kazemzadeh Chakusary et al 2017 ) Phoenix dactylifera Iran ( Mohammadi 2014 ) Prunus armeniaca Iran ( Arzanlou et al 2014 ) ; South Africa ( Damm et al 2008b ) Prunus dulcis South Africa (this study) Prunus pennsylvanica USA ( Hausner et al 1992 ) Prunus persica South Africa ( Damm et al 2008b ) Prunus salicina South Africa ( Damm et al 2008b ) Psidium guajava South Africa (this study) Punica granatum South Africa (this study) Pyrus communis Iran ( Sami et al 2014 ); South Africa ( Cloete et al 2011 ) Rosa sp. South Africa (this study) …”

Section: Appendixmentioning

confidence: 89%

Phaeoacremonium species diversity on woody hosts in the Western Cape Province of South Africa

Spies¹,

Moyo²,

Halleen³

et al. 2018

persoonia

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Nineteen Phaeoacremonium species are currently known in South Africa. These have been reported from grapevines, fruit trees, fynbos twig litter and arthropods. In other countries some of these Phaeoacremonium species are also known from hosts such as European olive, quince and willow that commonly occur in the Western Cape Province of South Africa, where most South African records of Phaeoacremonium have been made. The aim of this study was to investigate the species diversity and host-range of Phaeoacremonium in the Western Cape Province of South Africa by characterising 156 isolates collected from 29 woody hosts. Phylogenetic analyses of combined actin and beta-tubulin datasets allowed for the identification of 31 species among the 156 isolates, including 13 new species and 3 known species that had not been recorded in South Africa previously. The new Phaeoacremonium species include P. album, P. aureum, P. bibendum, P. gamsii, P. geminum, P. junior, P. longicollarum, P. meliae, P. oleae, P. paululum, P. proliferatum, P. rosicola and P. spadicum. All previous records of P. alvesii in South Africa were re-identified as P. italicum, but both species were recovered during this survey. A total of 35 described Phaeoacremonium species are now known from South Africa, more than double the number reported from any other country. This high diversity reflects the high diversity of indigenous flora of the Cape Floral Region, a biodiversity hotspot mainly situated in the Western Cape Province. Paraphyly and incongruence between individual phylogenies of the actin and beta-tubulin regions complicated species delimitation in some cases indicating that additional phylogenetic markers should be investigated for use in Phaeoacremonium phylogenies to prevent misidentifications and the introduction of vague species boundaries.

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Section: Appendixmentioning

confidence: 89%

Phaeoacremonium species diversity on woody hosts in the Western Cape Province of South Africa

Spies¹,

Moyo²,

Halleen³

et al. 2018

persoonia

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Section: Discussionmentioning

confidence: 99%

“…While some of these fungal species have proven to be pathogenic on grapevine, the pathogenic potential of many species still remains to be tested. Recent studies have shown that other woody hosts serve as alternative or reservoir host for grapevines trunk pathogens; hence, there is growing attention on truck diseases of other woody host plant species, particularly in vicinity of vineyards (Arzanlou et al 2013b;Gramaje et al 2016). A recent study on fungal truck pathogens of almond trees in Spain characterized several fungal groups including C. hispanica, as new species from Mean lesion length is based on three replicates per isolate (six isolates for Collophora hispanica).…”

Section: Discussionmentioning

confidence: 99%

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Collophora hispanica, a New Pathogen and Potential Threat to the Almond Industry in Iran

Arzanlou

Ghasemi

Bagheri

2016

Journal of Phytopathology

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Trunk diseases are potential threats for almond productivity and longevity worldwide, including Iran. In a recent survey on fungal species associated with trunk diseases of almonds in north‐western Iran, Collophora isolates (tentatively identified as Collophora hispanica) were recovered with high frequency from wood samples with internal necrosis and brown to black vascular streaking of almond trees showing symptoms of decline. However, the pathogenic potential of Collophora isolates on almond trees in Iran remains unproven. In this study, the identity of the isolates was further confirmed as C. hispanica based on a combination of morphological data and sequence data of ITS‐rDNA region, and pathogenicity of C. hispanica isolates on almond was evaluated using excised shoot method and in greenhouse experiments. Collophora hispanica isolates induced lesions statistically different from the control, in both excised shoot method and greenhouse assays. Significant differences were observed among the isolates in the length of the lesion induced on wood. Collophora hispanica should be considered as the main trunk pathogens of almond trees in north‐western region of Iran. The distribution and host range of this new pathogen on almond remains to be studied.

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“…Even though grapevine is the main host for Pm. aleophilum, it has been reported on fruit trees and other woody hosts (Mostert et al 2006;Cloete et al 2011;Arzanlou et al 2013b;Carlucci et al 2013).…”

Section: Introductionmentioning

confidence: 96%

Uneven Distribution of Mating‐Type Alleles Among Togninia minima Isolates, One of the Causal Agents of Leaf Stripe Disease on Grapevines in Northwest Iran

Narmani

Arzanlou

Babai-Ahari

2016

Journal of Phytopathology

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Togninia minima is the main fungal species associated with grapevine leaf stripe disease worldwide. This species is mainly known from its asexual state in nature; nevertheless, a biallelic heterothallic mating strategy has been confirmed for this species based on in vitro crossing studies. There are no data available on the incidence of an active sexual cycle within the populations of this species in many grapevine-producing countries as well as Iran. The possibility of a clandestine sexual cycle within the Iranian isolates of T. minima was evaluated by analysing the distribution and frequency of the mating-type alleles on a microspatial and a macrogeographical scales. Towards this aim, a total of 90 T. minima isolates were recovered from grapevines with esca disease from the vineyards in north and north-western Iran. A multiplex PCR method previously designed by authors was applied for simultaneous identification and determination of the mating-type alleles in T. minima populations. The results on the screening of mating-type alleles using multiplex PCR method revealed the mating-type identity of 77 isolates as Mat1-2 and 23 isolates as Mat1-1. Our results showed that both Mat1-1 and Mat1-2 isolates are present in a single vineyard and even on single vines. The distribution of mating-type alleles in the sampled area skewed from the 1 : 1 ratio (77 : 23); however, co-occurrence of both mating types in a single vineyard and even on single vines is suggestive for the presence of an active sexual cycle for T. minima in north-western Iran.

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Pome and stone fruit trees as possible reservoir hosts forPhaeoacremoniumspp., the causal agents of grapevine esca disease, in Iran

Cited by 20 publications

References 22 publications

Phaeoacremonium species diversity on woody hosts in the Western Cape Province of South Africa

Phaeoacremonium species diversity on woody hosts in the Western Cape Province of South Africa

Collophora hispanica, a New Pathogen and Potential Threat to the Almond Industry in Iran

Uneven Distribution of Mating‐Type Alleles Among Togninia minima Isolates, One of the Causal Agents of Leaf Stripe Disease on Grapevines in Northwest Iran

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