نتایج جستجو برای: polyphasic approach

تعداد نتایج: 1290433  

Journal: :Studies in Mycology 2007
J. Houbraken M. Due J. Varga M. Meijer J.C. Frisvad R.A. Samson

Aspergillus ustus is a very common species in foods, soil and indoor environments. Based on chemical, molecular and morphological data, A. insuetus is separated from A. ustus and revived. A. insuetus differs from A. ustus in producing drimans and ophiobolin G and H and not producing ustic acid and austocystins. The molecular, physiological and morphological data also indicated that another spec...

2014
Marc Stadler Thomas Læssøe Jacques Fournier Cony Decock Beata Schmieschek Hans-Volker Tichy Derek Peršoh

UNLABELLED For a monograph based on a polythetic concept, several thousands of herbarium specimens, and several hundreds of freshly collected and cultured specimens of Daldinia and allied Xylariaceae, originating from around the world, were studied for morphological traits, including by SEM, and chemically by HPLC profiles using UV-visible and mass spectrometric detection. Emphasis was given to...

2017
Jodi Woan-Fei Law Hooi-Leng Ser Acharaporn Duangjai Surasak Saokaew Sarah I. Bukhari Tahir M. Khan Nurul-Syakima Ab Mutalib Kok-Gan Chan Bey-Hing Goh Learn-Han Lee

Streptomyces colonosanans MUSC 93JT, a novel strain isolated from mangrove forest soil located at Sarawak, Malaysia. The bacterium was noted to be Gram-positive and to form light yellow aerial and vivid yellow substrate mycelium on ISP 2 agar. The polyphasic approach was used to determine the taxonomy of strain MUSC 93JT and the strain showed a range of phylogenetic and chemotaxonomic propertie...

Journal: :Water 2022

Cyanobacteria are a group of oxygenic photosynthetic prokaryotes found in almost all habitats on earth including those characterized as extreme environments. It has been observed that the number studies dealing with biodiversity extremophilic cyanobacteria is limited while exploring their bioactive potential even scarcer. The taxonomy three Nostoc-like cyanobacterial strains isolated from shall...

2012
Chakresh Kumar Jain Vidhi Gupta Ashvarya Gupta Sanjay Gupta Gulshan Wadhwa Sanjeev Kumar Sharma Indira P Sarethy

UNLABELLED Members of Streptomyces produce 70% of natural bioactive products. There is considerable amount of information available based on polyphasic approach for classification of Streptomyces. However, this information based on phenotypic, genotypic and bioactive component production profiles is crucial for pharmacological screening programmes. This is scattered across various journals, boo...

Journal: :International journal of systematic and evolutionary microbiology 2001
J P Sampaio M Gadanho S Santos F L Duarte C Pais A Fonseca J W Fell

The phenotypic and genetic heterogeneity of the basidiomycetous yeast species Rhodosporidium kratochvilovae was investigated in a group of recent isolates and collection strains. A polyphasic taxonomic approach was followed which included micromorphological studies, nuclear staining, determination of sexual compatibility, physiological characterization, comparison of electrophoretic isoenzyme p...

Journal: :International journal of systematic and evolutionary microbiology 2009
Karine Alain Nolwenn Callac Marianne Guégan Françoise Lesongeur Philippe Crassous Marie-Anne Cambon-Bonavita Joël Querellou Daniel Prieur

A novel strictly anaerobic, thermophilic, sulfur-reducing bacterium, designated PH1209(T), was isolated from an East Pacific Rise hydrothermal vent (1 degrees N) sample and studied using a polyphasic taxonomic approach. Cells were Gram-negative, motile rods (approx. 1.60 x 0.40 microm) with a single polar flagellum. Strain PH1209(T) grew at temperatures between 33 and 65 degrees C (optimum 60 d...

Journal: :International journal of systematic and evolutionary microbiology 2000
F E Dewhirst J G Fox S L On

The International Committee of Systematic Bacteriology Subcommittee on the taxonomy of Campylobacter and related bacteria has agreed in principle on minimum requirements for the description of new species of the genus Helicobacter. These requirements include the recommendation that the description of a putative new species or subspecies be based on examination of at least five strains in order ...

2010
L. Lombard P.W. Crous B.D. Wingfield M.J. Wingfield

Species of Calonectria and their Cylindrocladium anamorphs are important plant pathogens worldwide. At present 52 Cylindrocladium spp. and 37 Calonectria spp. are recognised based on sexual compatibility, morphology and phylogenetic inference. The polyphasic approach of integrating Biological, Morphological and Phylogenetic Species Concepts has revolutionised the taxonomy of fungi. This review ...

Journal: :Studies in Mycology 2007
R.A. Samson S. Hong S.W. Peterson J.C. Frisvad J. Varga

The taxonomy of Aspergillus section Fumigati with its teleomorph genus Neosartorya is revised. The species concept is based on phenotypic (morphology and extrolite profiles) and molecular (beta-tubulin and calmodulin gene sequences) characters in a polyphasic approach. Four new taxa are proposed: N. australensis N. ferenczii, N. papuaensis and N. warcupii. All newly described and accepted speci...

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