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International Journal of Medicinal Mushrooms
Fator do impacto: 1.423 FI de cinco anos: 1.525 SJR: 0.433 SNIP: 0.661 CiteScore™: 1.38

ISSN Imprimir: 1521-9437
ISSN On-line: 1940-4344

Volumes:
Volume 21, 2019 Volume 20, 2018 Volume 19, 2017 Volume 18, 2016 Volume 17, 2015 Volume 16, 2014 Volume 15, 2013 Volume 14, 2012 Volume 13, 2011 Volume 12, 2010 Volume 11, 2009 Volume 10, 2008 Volume 9, 2007 Volume 8, 2006 Volume 7, 2005 Volume 6, 2004 Volume 5, 2003 Volume 4, 2002 Volume 3, 2001 Volume 2, 2000 Volume 1, 1999

International Journal of Medicinal Mushrooms

DOI: 10.1615/IntJMedMushrooms.2018026567
pages 665-676

Morphological Characteristics of Monokaryotic and Dikaryotic Collections of Three Medicinal Coprinellus Species (Agaricomycetes)

Susanna M. Badalyan
Laboratory of Fungal Biology and Biotechnology Yerevan State University, 1 Aleg Manoogian St. Yerevan, 375025 Armenia

RESUMO

This article presents data from morphological observations of mycelia of 40 monokaryotic and 11 dikaryotic collections of 3 medicinal Coprinellus species (C. disseminatus, C. micaceus, and C. xanthothrix). The growth rate, colony morphology, and micromorphological characteristics of mycelia and anamorphs on 1.5% malt-extract agar (MEA) and potato-dextrose agar (PDA) are described. Well-developed white, cottony-felt colonies, which later show creamy, yellowish to rusty brown pigmentation on mycelia and agar, were typical for the studied Coprinellus collections. Mycelial growth was denser on PDA than on MEA, whereas the average growth rate indicators (GRavr) were higher in dikaryotic isolates on MEA. Clamp connections were described only in dikaryotic isolates of C. disseminatus and C. micaceus; mycelia of C. xanthothrix had no clamps. Nonsporulating Ozonium-type anamorphic mycelia (with a rusty brown septate and parallel hyphal strands), a taxonomic feature characteristic of the clade Coprinellus, was present in the studied monokaryotic and dikaryotic collections, whereas Hormographiella-type sporulating anamorphs developed only in monokaryotic and dikaryotic isolates of C. xanthothrix. Yellowish-rusty-brownish regular hyphal loops were also observed in the collections of all 3 Coprinellus species. Allocyst-like hyphal swellings were observed in monokaryons of C. xanthothrix, and hyphocystidia were observed in dikaryons of C. micaceus. Hyphal loops and hyphal cystidia presumably were derived from Ozonium mycelia. Thick-walled, oval chlamydospores and chlamydospore-like swellings were described only in dikaryons of C. xanthothrix. Under these experimental conditions, primordia and fruiting bodies developed in dikaryons of C. xanthothrix on MEA and PDA, respectively, and in dikaryons of C. micaceus on MEA. The taxonomic significance of the mycelial and anamorphic characteristics of studied Coprinellus species was evaluated. They could be useful for identifying mycelial cultures during biotechnological cultivation.


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