Endophytic fungi are beneficial fungi to their host plants and help them to endure biotic and abiotic stresses with different methods. In order to identify some endophytic fungi of sour cherry trees, healthy plant samples including twigs and leaves were collected from several provinces of Iran. A total number of 176 isolates were obtained and studied taxonomically. Based on morphological featur...

Using media with low water activity, a large numbers of aureobasidium-like black yeasts were isolated from glacial and subglacial ice of three polythermal glaciers from the coastal Arctic environment of Kongsfjorden (Svalbard, Spitsbergen), as well as from adjacent sea water, sea ice and glacial meltwaters. To characterise the genetic variability of Aureobasidium pullulans strains originating f...

Although more than 3000 antibiotics have been reported from Actinomycetes/ higher fungi; biotechnological potential of yeasts and yeast-like fungi with respect to production of antimicrobial compounds has not been sufficiently investigated. We examined the antimicrobial activity of 11 strains of Aureobasidium pullulans (two new isolates and nine standard strains). All the strains of Aureobasidi...

Aureobasidium pullulans is ubiquitous, polymorphic and black fungus producing a variety of important metabolites including enzymes, polysaccharides and single cell protein. It is considered as a probable source for antagonistic activity against a number of phytopathogenic fungi and possible biocontrol agent of post harvest diseases. The present work aims at the antibacterial compounds produced ...

Aureobasidium pullulans ATCC 42023 was cultured under aerobic conditions with glucose, mannose, and glucose analogs as energy sources. The exopolymer extracts produced under these conditions were composed of glucose and mannose. The molar ratio of glucose to mannose in the exopolymer extract and the molecular weight of the exopolymer varied depending on the energy source and culture time. The g...

Total 95 isolates of Aureobasidium pullulans were isolated from different flowers and leaves samples, out of which 11 thermotolerant strains produced pullulan. One thermotolerant non-melanin pullulan producing strain, designated as RG-5, produced highest pullulan (37.1±1.0 g/l) at 42(o)C, pH 5.5 in 48h of incubation with 3% sucrose and 0.5% ammonium sulphate in a non-stirred fed batch fermentor...

The biocontrol activity of Aureobasidium pullulans on decay of apple fruit caused by Botrytis cinerea and Penicillium expansum, and its ability to induce biochemical defense responses in apple tissue, were investigated. In apple wounds, A. pullulans multiplied rapidly and controlled decay caused by either B. cinerea or P. expansum. At the end of the storage period, A. pullulans reduced the inci...

background and objectives: annexin is the common name for genes and proteins that were identified as calcium-dependent phospholipid-binding proteins. recently a more complex set of functions has been recognized for this superfamily of proteins including in vesicle trafficking, cell division, apoptosis, calcium signalling, mineralization, crystal nucleation inside the extracellular organelles-ma...

BACKGROUND Polymalic acid (PMA) has many applications in food and medical industries. However, so far it has not been commercially produced by fermentation. Therefore, it is very important how to develop an economical process for a large scale production of PMA by one step fermentation. RESULTS After over 200 strains of Aureobasidium spp. isolated from the mangrove systems in the South of Chi...

Aureobasidium pullulans strain Y117 was transformed to hygromycin resistance using plasmid pDH33, which contains the bacterial hygromycin B phosphotransferase gene (hph) fused to promoter elements of the Aspergillus niger glucoamylase gene (glaA). Southern hybridizations of transformants revealed multiple, integrated copies of the vector. The glaA promoter was not induced by starch in A. pullul...