Cyclaneusma gen. nov., Naemacyclus and Lasiostictis, a nomenclatural problem resolved

DiCosmo, Frank; Peredo, Hernan; Minter, D. W.

doi:10.1111/j.1439-0329.1983.tb00119.x

Cited by 24 publications

(15 citation statements)

References 8 publications

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“…The genus Cyclaneusma was erected by Dicosmo et al. () to accommodate Naemacyclus minor and N. niveus, which have ascospores and hymenium with quite different characteristics to the type species of that genus; they also renamed the type species from Naemacyclus pinastri to N. fimbriatus . Two different species, Cyclaneusma minus and Cyclaneusma niveum are recognized in Cyclaneusma (Dicosmo et al.…”

Section: Introductionmentioning

confidence: 99%

“…Two different species, Cyclaneusma minus and Cyclaneusma niveum are recognized in Cyclaneusma (Dicosmo et al. ), and both have been recorded in many different species of Pinus (Sieber et al. ; Botella and Diez ; Farr and Rossman ).…”

Section: Introductionmentioning

confidence: 99%

“…The genus Cyclaneusma was erected by Dicosmo et al (1983) to accommodate Naemacyclus minor and N. niveus, which have ascospores and hymenium with quite different characteristics to the type species of that genus; they also renamed the type species from Naemacyclus pinastri to N. fimbriatus. Two different species, Cyclaneusma minus and Cyclaneusma niveum are recognized in Cyclaneusma (Dicosmo et al 1983), and both have been recorded in many different species of Pinus (Sieber et al 1999;Botella and Diez 2011;Farr and Rossman 2013). Studies of Cyclaneusma needle diseases indicate that C. minus is more pathogenic than C. niveum; the latter is considered a weak pathogen (Kistler and Merril 1978;Petrini and Petrini 1985;Bulman and Gadgil 2001).…”

Section: Introductionmentioning

confidence: 99%

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Multigene phylogenetic study of Cyclaneusma species

et al. 2014

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Summary Cyclaneusma Needle Cast is associated with the fungal pathogen Cyclaneusma minus. The disease has led to significant losses of Pinus radiata production in New Zealand, but the disease appears less serious in Australia. Two cultural morphotypes of C. minus have been discriminated in New Zealand, and isolates from Australia also correspond to these two morphotypes. To examine if the two morphotypes of Cyclaneusma are different species, phylogenetic analysis using sequences from five gene regions (rDNA ITS, mt‐LSU, n‐LSU, tef–1 and βT‐1) was conducted. This study revealed that C. minus consists of two distinct clades which correspond to the two morphotypes. One morphotype (‘verum’) was more closely related to Cyclaneusma niveum than to the other morphotype (‘simile’). A morphological description is required to formalise the new species represented by the ‘simile’ clade; an investigation of the individual pathogenic behaviours of both morphotypes is also required.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Multigene phylogenetic study of Cyclaneusma species

et al. 2014

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“…Ascospores filiform, hyaline, smooth, 2-septate, with mucous caps at both ends, 65-100 X 2,5-3 iLm in size. Conidia are bacilliform, 6-9,5 x 1 iLm in size (Di Cosmo, Peredo and Minter, 1983;Millar and Minter, 1980). Importance: This fungus causes considerable damage to pines grown for Christmas trees in Eastern U.S.A. and also to some degree in Australia and New Zealand (Millar and Minter, 1980).…”

Section: Cyclaneusmamentioning

confidence: 99%

Shoot and Needle Diseases ofPinusspp. in South Africa

Crous¹,

Wingfield

Swart

1990

South African Forestry Journal

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“…Cyclaneusma minus (Butin) DiCosmo, Peredo and Minter [1] is an ascomycetous fungus associated with disease in Pinus spp. Like many fungi, Cyclaneusma has undergone name changes during its research history and this has been documented elsewhere [2,3].…”

Section: Introductionmentioning

confidence: 99%

Transformation of Cyclaneusma minus with Green Fluorescent Protein (GFP) to Enable Screening of Fungi for Biocontrol Activity

McDougal

Stewart

Bradshaw

2012

Forests

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Cyclaneusma needle-cast has a major impact on the New Zealand forest industry. The causal agent, Cyclaneusma minus, causes most severe damage to 11-20 year-old trees and currently there are no economically viable procedures for control of the disease in New Zealand. Here we present a method for genetic transformation of C. minus using protoplasts generated by incubation with Glucanex™ enzyme. C. minus was transformed with a gene encoding green fluorescent protein (GFP) and expression was stable after successive sub-culturing of the strain in the absence of selective pressure. Expression of the gfp gene allowed us to utilize an in vitro GFP-based screening method to identify strains of Trichoderma with potential for biocontrol of this disease. The strain that showed the most promise as a potential biocontrol candidate exhibited a low level of inhibition by uncharacterized metabolite(s) that C. minus secretes into the medium, and consistently caused a loss of GFP expression from the GFP-labeled C. minus strain. The interaction between C. minus and the biocontrol strain, in the interaction zone where GFP expression was lost, was determined to be fungicidal. The utility of such biocontrol strains is discussed. This study represents the first genetic manipulation of C. minus and will pave the way for further studies of the life cycle and infection biology of this organism.

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Cyclaneusma gen. nov., Naemacyclus and Lasiostictis, a nomenclatural problem resolved

Cited by 24 publications

References 8 publications

Multigene phylogenetic study of Cyclaneusma species

Multigene phylogenetic study of Cyclaneusma species

Shoot and Needle Diseases ofPinusspp. in South Africa

Transformation of Cyclaneusma minus with Green Fluorescent Protein (GFP) to Enable Screening of Fungi for Biocontrol Activity

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