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Advances In Penicillium And Aspergillus Systematics Pdf

advances in penicillium and aspergillus systematics pdf

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Raper, who together developed the first workable and widely accepted taxonomies of these genera. Both were instrumental also in the development of culture collections for these industrially important fungi. Raper made the invaluable contribution of developing freeze drying techniques suitable for fungi, and this has proved to be of great practical importance. However, they also left a legacy of nomenclatural and taxonomic problems which have been addressed only recently.

Advances in Penicillium and Aspergillus Systematics Prenesi PDF

The culture characterization on four standardized media, microscopic observations and phylogenetic analyses based ITS, BenA and CaM regions indicate that it is new to science and named as Talaromyces xishaensis sp. The new species belongs to section Talaromyces , and is related to T. Benjamin, C. Mycologia — Cao, C. Emerging Infectious Diseases —

Aspergillus species originating from Greece were examined by morphological and molecular criteria to explore the diversity of this genus. The morphological characters of the anamorphs and teleomorphs, and the single gene phylogenetic trees, differentiated and placed the species examined in the well-supported sections of Aenei , Aspergillus , Bispori , Candidi , Circumdati , Clavati , Cremei , Flavi , Flavipedes , Fumigati , Nidulantes , Nigri , Restricti , Terrei , Usti , and Zonati , with few uncertainties. The combined use of the three commonly employed nuclear genes ben A, rpb 2, and ITS , the IGS region, and two less often used mitochondrial gene sequences rns and cox 1 as a single unit resolved several taxonomic ambiguities. The strains examined formed seven well-supported clades within the genus Aspergillus. Altogether, the concatenated nuclear and mitochondrial sequences offer additional tools for an improved understanding of phylogenetic relationships within this genus. The genus Aspergillus is one of the most common and important genera of microfungi. Several species of the genus proved very useful cell factories for biotechnology purposes since they produce organic acids, extracellular enzymes, nutraceuticals isoprenoids , and aroma compounds and are capable of fermenting various substrates under extreme cultivation conditions, usually intolerable to bacteria and yeasts [ 1 — 4 ].

Advances in penicillium and aspergillus systematics

Floccaria Grev. Some members of the genus produce penicillin , a molecule that is used as an antibiotic , which kills or stops the growth of certain kinds of bacteria. Other species are used in cheesemaking. According to the Dictionary of the Fungi 10th edition, , the widespread genus contains over species. The genus was first described in the scientific literature by Johann Heinrich Friedrich Link in his work Observationes in ordines plantarum naturales ; he wrote, "Penicillium. Thallus e floccis caespitosis septatis simplicibus aut ramosis fertilibus erectis apice penicillatis", where penicillatis referred to "pencil-like" referring to a Camel's hair pencil brush. The common apple rot fungus P.

Advances in Penicillium and Aspergillus Systematics

Aspergillus , Penicillium, and Talaromyces are among the most chemically inventive of all fungi, producing a wide array of secondary metabolites exometabolites. The three genera are holophyletic in a cladistic sense and polythetic classes in an anagenetic or functional sense, and contain , , and 88 species, respectively. New developments in classification, cladification, and nomenclature have meant that the species, series, and sections suggested are natural groups that share many extrolites, including exometabolites, exoproteins, exocarbohydrates, and exolipids in addition to morphological features. The exometabolites are biosynthesized via shikimic acid, tricarboxylic acid cycle members, nucleotides, carbohydrates or as polyketides, non-ribosomal peptides, terpenes, or mixtures of those.

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Advances In Penicillium And Aspergillus Systematics

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    22.12.2020 at 19:49
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  5. Tanya W.

    29.12.2020 at 02:16
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    The great pioneers in the systematics of Penicillium and Aspergillus were Charles Thom and Kenneth B. Raper, who together developed the first In Advances in Penicillium and Aspergillus Systematics, eds. A Manual of the Penicillia.

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