Twenty-one species of Chaetomium known from Iran were compared on the basis of morphological and molecular characters. Six new species are recognized, five isolated from cereals and one from nematode cysts. A combined sequence dataset of the ITS region, partial LSU rDNA, and β-tubulin gene sufficiently resolved five species groups of Chaetomium that are largely concordant with combined features of peridium structure, ascospore shape and germ pore position. Among the new species C. undulatulum is a close relative of C. globosum, C. rectangulare is close to C. elatum, C. interruptum and C. grande are close to C. megalocarpum, altogether forming the C. globosum species group. Chaetomium iranianum and C. truncatulum are members of the C. carinthiacum species group, characterized by spirally coiled ascomatal hairs and fusiform ascospores. A chrysosporium-like anamorph is newly described for C. acropullum.
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http://dx.doi.org/10.3852/10-349 | DOI Listing |
Front Plant Sci
April 2024
Department of Plant Protection, Faculty of Agriculture, University of Kurdistan, Sanandaj, Iran.
Oak decline is a complex disorder that seriously threatens the survival of Zagros forests. In an extensive study on taxonomy and pathology of fungi associated with oak decline in the central and northern part of Zagros forests, 462 fungal isolates were obtained from oak trees showing canker, gummosis, dieback, defoliation, and partial or total death symptoms. Based on inter-simple sequence repeat (ISSR) fingerprinting patterns, morphological characteristics, and sequences of ribosomal DNA (28S rDNA and ITS) and protein coding loci (, , , , , , and ), 24 fungal species corresponding to 19 genera were characterized.
View Article and Find Full Text PDFFront Microbiol
November 2022
Department of Entomology and Plant Pathology, College of Aburaihan, University of Tehran, Tehran, Iran.
Endophytic fungi are microorganisms with the ability to colonize plants for the entire or at least a significant part of their life cycle asymptomatically, establishing a plant-fungus association. They play an important role in balancing ecosystems, as well as benefiting host through increasing plant growth, and protecting the host plants from abiotic and biotic stresses using various strategies. In the present study, endophytic fungi were isolated from wild and endemic apple cultivars, followed by characterizing their antifungal effect against .
View Article and Find Full Text PDFFront Plant Sci
September 2022
Department of Plant Protection, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran.
In this study, efficiency of the endophytic fungal isolate Msh5 was evaluated on promoting tomato plant growth and controlling , the causal agent of early blight in tomatoes. Morphological and molecular (ITS and tub2 sequences) analyses revealed that the fungal isolate, Msh5, was ( Lodha). This beneficial fungus was capable of producing indole-3-acetic acid (IAA), urease, siderophore, extracellular enzymes, and solubilized phosphate.
View Article and Find Full Text PDFMed Mycol
December 2021
Bioprocess Engineering and Biotechnology Graduate Program; Microbiology, Parasitology and Pathology Post-Graduation Program, Department of Basic Pathology, Federal University of Paraná, Curitiba, 82650145, Brazil.
Unlabelled: The incidence of infections caused by uncommon Chaetomiaceae (Chaetomium and related species) in humans has increased in the recent years. The in vitro activity of eight antifungal drugs (amphotericin B, five azoles, two echinocandins) against 42 morphologically identified Chaetomium strains was determined according to the Clinical and Laboratory Standards Institute (CLSI) guideline. The strains were subsequently identified based on sequences of the internal transcribed spacer 1 and 2 including the intervening 5.
View Article and Find Full Text PDFAdv Biomed Res
January 2020
Department of Medical Parasitology and Mycology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
Background: Dermatomycoses contain superficial fungal infections of keratinized layers of the body such as skin, hair, and nail that affect more than 20%-25% of people and animals worldwide. Some fungi can cause superficial infections in animals after accidental penetration and colonization on injured skin and can be transmitted to humans by exposure. The infection caused mainly by dermatophyte species and may also be caused rarely by yeasts and nondermatophytic molds.
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