Genetic variability among strains of <i>Phialocephala fortinii</i> and phylogenetic analysis of the genus <i>Phialocephala</i> based on rDNA ITS sequence comparisons

Grünig, Christoph R.; Sieber, Thomas N.; Rogers, Scott O.; Holdenrieder, Ottmar

doi:10.1139/b02-115

Cited by 64 publications

(31 citation statements)

References 64 publications

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“…and C. Tul., which belongs to the order Chaetosphaeriales (LoBuglio et al 1996;Réblová et al 1999;Réblová and Winka 2000;Grünig et al 2002;Vrålstad et al 2002a;Harrington and McNew 2003).…”

Section: Introductionmentioning

confidence: 99%

Molecular characterization and endophytic nature of the root-associated fungus Meliniomyces variabilis (LtVB3)

Ohtaka¹,

Narisawa

2007

J Gen Plant Pathol

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The root-associated fungus LtVB3 was formerly reported as a potential, new biocontrol agent of Verticillium yellows of Chinese cabbage and Fusarium wilt of tomato. According to molecular phylogenetic analysis of the ITS 1-5.8S rDNA-ITS 2 gene regions and morphological characteristics, LtVB3 is here identified as Meliniomyces variabilis, a recently described species [formerly called ''Variable White Taxon'' (VWT)] in a new genus erected to accommodate sterile fungi with phylogenetic affinities to Rhizoscyphus ericae, an ericoid mycorrhizal fungus. In vitro inoculation experiments showed that LtVB3 colonized the roots of torch azalea and eucalyptus; however, growth was enhanced only in azalea but not in eucalyptus. Hyphae of M. variabilis formed intracellular structures typical of ericoid mycorrhizas in epidermal cells of azalea roots but did not produce any typical ectomycorrhizal structures with or within root cells of either host. In LtVB3-treated eucalyptus roots, some cells in the epidermal and cortical layers had wall appositions and thickenings, which appeared to restrict fungal growth.

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Section: Introductionmentioning

confidence: 99%

Molecular characterization and endophytic nature of the root-associated fungus Meliniomyces variabilis (LtVB3)

Ohtaka¹,

Narisawa

2007

J Gen Plant Pathol

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“…Currently, molecular identification techniques stand out as the most effective method for identification of nonsporulating fungal endophytes and the detection of viable but non-culturable fungi (Grunig et al, 2002). Therefore, fungal endophytes in this study were subjected to molecular identification based on sequencing the ITS1-5.8S-ITS2 region.…”

Section: Discussionmentioning

confidence: 99%

Isolation, identification and bioactivity of fungal endophytes from selected Kenyan medicinal plants

Nasimiyu¹,

Wagara²,

Obonyo³

et al. 2018

Afr. J. Microbiol. Res.

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Infectious diseases remain a global health burden due to development of antibiotic resistance by pathogenic microorganisms. Antibiotic resistance has led to increased number of deaths among children and adults. This study sought to isolate and identify fungal endophytes from selected Kenyan medicinal plants and screen them and their extracts for bioactivity against selected test human pathogens. Fifty-five fungal endophytes were successfully isolated from fresh leaves of twenty-three medicinal plants from Kakamega forest. The DNA of fungal endophytes was extracted and molecular characterization was done through sequencing of the internal transcribed spacer region (ITS). The isolated fungal endophytes belonged to nine genera in the Ascomycota group, namely Fusarium, Colletotrichum, Trichothecium, Phomopsis, Pestalotiopsis, Cladosporium, Aspergillus, Phoma, and Chaetomium. Extracts from Aspergillus sp. demonstrated antimicrobial activity at low concentrations of 2.34 µg/ml against B. subtilis and 9.38 µg/ml against Candida tenius; while extracts from Colletotrichum sp. demonstrated antimicrobial activity at moderate concentration (37.5 µg/ml) against B. subtilis in the serial dilution assay. These results show that medicinal plants are a reservoir to a diversity of fungal endophytes that could be exploited as sources of natural products of pharmaceutical importance.

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“…This is the first report of S. bactrospora from Norway and Sweden. Previous records of the fungus include those from Canada (Grünig et al, 2002;Kendrick 1961), England (Kendrick 1961), Japan (Jacobs et al 2003) and Spain (Luque et al 2000).…”

Section: Discussionmentioning

confidence: 99%

Sporendocladia bactrospora associated with wounds on native broadleaved trees in Norway and Sweden

Roux

Solheim²,

Nkuekam

et al. 2013

Forest Pathology

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SummaryA survey to identify Ophiostomatoid fungi that infect wounds on native Norwegian and Swedish broad leaved trees was undertaken during summer 2004.A fungus resembling a species of Sporendocladia was commonly isolated from the exposed cambium and inner bark of wounds. Morphological examination and comparisons of DNA sequence data for the ITS and 5.8S regions of the rRNA gene region led to its identification as Sporendocladia bactrospora. Pathogenicity trials on young Populus tremula and Betula pubescens trees showed that S. bactrospora is capable of causing lesions on these trees. There have been few previous reports of S. bactrospora and in most cases these have been as saprophytes on wood. In contrast, results of this study show that it is a common 2 inhabitant of freshly made wounds on native broad leaved trees in Scandinavia and it appears to contribute to staining of wood.

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Genetic variability among strains of Phialocephala fortinii and phylogenetic analysis of the genus Phialocephala based on rDNA ITS sequence comparisons

Cited by 64 publications

References 64 publications

Molecular characterization and endophytic nature of the root-associated fungus Meliniomyces variabilis (LtVB3)

Molecular characterization and endophytic nature of the root-associated fungus Meliniomyces variabilis (LtVB3)

Isolation, identification and bioactivity of fungal endophytes from selected Kenyan medicinal plants

Sporendocladia bactrospora associated with wounds on native broadleaved trees in Norway and Sweden

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