Aureobasidium pullulans, an economically important polymorphic yeast with special reference to pullulan

  title={Aureobasidium pullulans, an economically important polymorphic yeast with special reference to pullulan},
  author={Rajeeva Gaur and Ranjan Kumar Singh and Monika Gupta and Manogya Kumar Gaur},
Aureobasidium pullulans, popularly known as black yeast, is one of the most widespread saprophyte fungus associated with wide range of terrestrial and aquatic habitats, in temperate and tropical environment. It is a polymorphic fungus that is able to grow in single yeast-like cells or as septate, polykaryotic hyphae showing synchronous conditions, with budding cells. This fungus has been exploited potentially for commercial production of various enzymes (amylase, xylanase, pectinase, etc… 

The current status of Aureobasidium pullulans in biotechnology

Different strains of the saprophytic yeast-like fungus Aureobasidium pullulans (Ascomycota: Dothideales) exhibit different biochemical characteristics, while their ubiquitous occurrence across

Antimicrobial activity of a thermotolerant Aureobasidium pullulans strain isolated from Faizabad region of Uttar Pradesh in India

A large number of bioactive and structurally diverse fungal metabolites have been isolated and cahracterized and some of these have been ISSN: 2319-7706 Volume 4 Number 3 (2015) pp. 740-744.

Optimization and characterization of pullulan production by a newly isolated high-yielding strain Aureobasidium melanogenum

Strain A4, a new fungus strain isolated from soil and identified as Aureobasidium melanogenum based on colony characteristics, morphology, and internally transcribed spacer analysis, could be a good candidate for industrial production.

Pullulan: Production and usage in food ındustry

General properties ofpullulan, pullulan production, usage of pullULan in food industry were examined, and some of the problems associated with fermentative production ofPullulan are the formation of a melanin pigment; the inhibitory effects caused by high sugar concentrations in the medium; and the high cost associated with pullulans precipitation and recovery.

Antagonistic yeasts competes for iron with winter wheat stem base pathogens

This is the first study to show that A. pullulans competes for iron with stem base pathogens, in particular with fast-growing R. cerealis and F. culmorum.

Taxonomia e características metabólicas de leveduras isoladas de bitus de Atta sexdens rubropilosa

The results of this study suggest that males transport yeasts from the fungus garden and such microorganisms can generate and consume nutrients in the fungus gardens.

Understand the Potential Role of Aureobasidium pullulans, a Resident Microorganism From Grapevine, to Prevent the Infection Caused by Diplodia seriata

This study deep characterized the interaction of a resident and abundant microorganism from grapevine – Aureobasidium pullulans strain Fito_F278 – against D. seriata F98.1, a Botryosphaeria dieback agent, and with plant and highlights its importance to toward more resilient grapevine.

A Novel Media Optimized for Production of Pullulan in Flask Type Fermentation System

ISSN: 2319-7706 Volume 7 Number 04 (2018) Journal homepage: Aureobasidium pullulans, popularly known as black yeast, is one of the most widespread saprophytic fungus associated



Pullulan production by tropical isolates of Aureobasidium pullulans

Tropical isolates of Aureobasidium pullulans previously isolated from distinct habitats in Thailand were characterized for their capacities to produce the valuable polysaccharide, pullulan. A.

Bioproducts from Aureobasidium pullulans, a biotechnologically important yeast

It is very important to sequence the whole genomic DNA of the yeast cells in order to find new more bioproducts and novel genes from this yeast.

Pullulan: Microbial sources, production and applications.

Thailand habitats as sources of pullulan-producing strains of Aureobasidium pullulans

The current studies support the notion that the hot, humid environments facilitate the development of A. pullulans and its tropical variants in diverse phylloplane and walls habitats, and merit support for further isolation and characterization of these black yeasts as a source of unique pullulan-producing strains.

Relation between pullulan production, morphological state and growth conditions in Aureobasidium pullulans: new observations

Aureobasidium pullulans is a polymorphic microfungus that produces extracellular pullulan in culture media with a life-cycle involving blastospores, hyphae, chlamydospores and intermediate forms, and the results suggest that swollen cells and chlamYDospores are the forms that produceextracellular polysaccharides.

Extracellular cellulase production by tropical isolates of Aureobasidium pullulans.

It is indicated that some isolates of A. pullulans of tropical origin produce significant extracellular cellulolytic activity and that crude cell walls may be good inducers of cellulolytics activity in A.pullulans.

Characterization of Aureobasidium pullulans isolated from airborne spores in Thailand

IR spectra suggest that the EPS from these isolates were partially sensitive to pullulanase, and all three isolates preferred glucose over sucrose and (NH4)2SO4 over peptone for EPS production.

Redefinition of Aureobasidium pullulans and its varieties

To characterise the genetic variability of Aureobasidium pullulans strains originating from the Arctic and strains originating pan-globally, a multilocus molecular analysis was performed and a partial elongase-encoding gene was successfully used as a phylogenetic marker at the (infra-)specific level.