Anamorphic Fungi

Gams, W.; Seifert, Keith A.

doi:10.1002/9780470015902.a0000351.pub2

Cited by 3 publications

(4 citation statements)

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“…The aim of the study is to determine the anamorphic spore content of this region and its relationship to meteorological factors in order to identify the potential aeroallergens that might affect the local population and visitors as well. According to Gams and Seifert (2008), anamorphic fungi are defined as an artificial assemblage of asexual stages of ascomycetes and basidiomycetes. They are classified together with asexually reproducing fungi that lack sexual structures.…”

Section: Introductionmentioning

confidence: 99%

Monitoring of anamorphic fungal spores in Madeira region (Portugal), 2003–2008

et al. 2015

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Seven years of aeromycological study was performed in the city of Funchal with the purpose to determine the anamorphic spore content of this region and its relationship to meteorological factors. The sampling was carried out with a Hirst-type volumetric spore trap following well-established guidelines. A total of 17,586 anamorphic fungal spores were recorded during the studied period, attaining an annual average concentration of 2931 spores m -3 . Anamorphic fungal spores were observed throughout the year, although the major peaks were registered during spring (April-June) and autumn period (September-November). The lowest spore levels were recorded between December and February months. Over 14 taxa of anamorphic fungal spores were observed with Cladosporium being the most prevalent fungal type accounting for 78 % of the total conidiospores. The next in importance was Alternaria (5.4 %), Fusarium (4.7 %), Torula (3.9 %) and Botrytis (1.9 %). Temperature was the meteorological parameter that favoured the most release and dispersal of the conidiospores, whereas rainfall revealed a negative effect. Despite the low concentration levels found in our region, the majority of the fungal types identified are described as potential aeroallergens. This study provides the seasonal variation of the conidiospores and the periods when the highest counts may be expected, representing a preventive tool in the allergic sensitization of the population.

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Section: Introductionmentioning

confidence: 99%

Monitoring of anamorphic fungal spores in Madeira region (Portugal), 2003–2008

et al. 2015

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“…This aspect is important to understand the differences on the metabolism at different stages of the life cycle of the fungi. A filamentous fungus can receive two Latin names corresponding to the anomorph (asexual stage) and teleomorph (sexual stage) [7]. The anomorph is characterized by the production of spores by mitosis while the teleomorph is characterized by the presence of specific reproductive structure where meiosis occurs.…”

Section: Introductionmentioning

confidence: 99%

“…According to Geiser (2009) [8], the sexual phase for 60% of the Aspergillus species is not observed. The species that show both stages are mentioned as pleomorphic [7]. In this article, in a comparative way, the production and characterization of extracellular invertases from anomorph (A. nidulans) and teleomorph (E. nidulans) filamentous fungi are described, using an agroindustrial residue as carbon source.…”

Section: Introductionmentioning

confidence: 99%

Production of Invertases by Anamorphic (<i>Aspergillus nidulans</i>) and Teleomorphic (<i>Emericela nidulans</i>) Fungi under Submerged Fermentation Using Rye Flour as Carbon Source

Alves¹,

Jorge²,

Guimarães³

2013

AiM

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The production of invertases by anamorph (A. nidulans) and teleomorph (E. nidulans) was investigated. The best level of extracellular enzymatic production for anomorph was obtained in Khanna medium containing sucrose as carbon source, whereas for teleomorph the best production was archived using M5 medium containing inulin as carbon source. Despite this, rye flour was selected as carbon source. The extracellular enzyme production was higher for teleomorph than that observed for anomorph for all carbon sources used. The enzyme production was inhibited by the addition of fructose and glucose in the medium containing rye flour as carbon source. The best conditions to recover the higher enzymatic activity were temperature of 54˚C -62˚C and pH of 4.8 -5.6 for both enzymes determined by experimental design (CCRD). The stability of the temperatures at 40˚C and 50˚C were similar for both enzymes. The invertases from the anomorph and teleomorph were activated by Mn 2+ , but the response of each one towards the presence of this cation was different with best activation observed for the anomorph enzyme (+80%). The extracellular enzymes were able to hydrolyze inulin, sucrose and raffinose. However, the affinity was higher for sucrose than inulin. In conclusion, the carbon source assimilation and the invertase production, as well as the enzymes properties, were different for the anomorph and teleomorph mycelia.

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“…In addition, numerous taxa within the Ascomycota are of industrial, medical and economical importance. A large proportion of taxa that reside within the Ascomycota are known only from their mitosporic or asexual states (Gams and Seifert 2008), thereby, making it difficult to determine phylogenetic and evolutionary relationships within this mega diverse group of fungi. The advent of molecular systematics has revolutionized our knowledge of the phylogenetics of the Ascomycota.…”

Section: Introductionmentioning

confidence: 99%

Testing the phylogenetic utility of MCM7 in the Ascomycota

Raja¹,

Schoch²,

Hustad³

et al. 2011

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The Ascomycota are a group of filamentous fungi that occur as saprobes, pathogens, and symbionts. They are of immense industrial, medical, ecological, and economical importance. The search for new markers appropriate for molecular phylogenetic analysis of Ascomycota remains a challenging problem. In this study, we explore the phylogenetic utility of a single copy protein-coding gene, MCM7; newly recognized as useful for inferring phylogenetic relationships among the major classes of the Ascomycota. Our specific goals were to: 1) test the phylogenetic utility of MCM7 for estimating phylogenies at various taxonomic ranks (class and below) with an emphasis on non-lichenized ascomycetes; and, 2) compare the congruence, robustness and resolving power of MCM7-based phylogenies with that of nuclear large subunit rDNA (LSU)-based phylogenies for the same taxon set. A dataset of sequence data for MCM7 as well as LSU was assembled for 80 species belonging to 63 genera of lichenized and non-lichenized ascomycetes in the classes Dothideomycetes, Eurotiomycetes, Geoglossomycetes, Lecanoromycetes, Leotiomycetes, and Sordariomycetes. We obtained 93 new sequences of which 65 are MCM7 and 28 are LSU. MaximumLikelihood and Bayesian analyses were performed using single as well as combined gene datasets and partitions. We also assessed substitution saturation for the MCM7 gene. Results indicate that MCM7 can be used successfully for determining phylogenetic relationships of ascomycetes and provided good resolution and support at half the cost compared to LSU. Phylogenetic informativeness profiles showed that MCM7 was more phylogenetically informative than LSU. The MCM7 gene is also a valuable phylogenetic marker for both lower as well as higher level phylogenetic analyses within the Ascomycota, especially when used in MycoKeysLaunched to accelerate biodiversity research Huzefa A. Raja et al. / MycoKeys 1: 63-94 (2011) 64 combination with the LSU gene. We found that although the third codon position of MCM7 is saturated, it was better to analyze the dataset with all codon positions included. Phylogenetic performance of MCM7 with and without the third codon position is discussed.

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Anamorphic Fungi

Cited by 3 publications

References 5 publications

Monitoring of anamorphic fungal spores in Madeira region (Portugal), 2003–2008

Monitoring of anamorphic fungal spores in Madeira region (Portugal), 2003–2008

Production of Invertases by Anamorphic (<i>Aspergillus nidulans</i>) and Teleomorphic (<i>Emericela nidulans</i>) Fungi under Submerged Fermentation Using Rye Flour as Carbon Source

Testing the phylogenetic utility of MCM7 in the Ascomycota

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Anamorphic Fungi

Cited by 3 publications

References 5 publications

Monitoring of anamorphic fungal spores in Madeira region (Portugal), 2003–2008

Monitoring of anamorphic fungal spores in Madeira region (Portugal), 2003–2008

Production of Invertases by Anamorphic (&lt;i&gt;Aspergillus nidulans&lt;/i&gt;) and Teleomorphic (&lt;i&gt;Emericela nidulans&lt;/i&gt;) Fungi under Submerged Fermentation Using Rye Flour as Carbon Source

Testing the phylogenetic utility of MCM7 in the Ascomycota

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Production of Invertases by Anamorphic (<i>Aspergillus nidulans</i>) and Teleomorphic (<i>Emericela nidulans</i>) Fungi under Submerged Fermentation Using Rye Flour as Carbon Source