Phytases catalyse the hydrolysis of phytate (myo-inositol hexakisphosphate) to myo-inositol and inorganic phosphate. In this study genes encoding novel phytases from two different filamentous fungi, Aspergillus terreus strain 9A-1 and Myceliophthora thermophila were isolated. The encoded PhyA phytase proteins show 60% (A. terreus) and 48% (M. thermophila) identity, respectively, to the PhyA of ...

Infections related to Aspergillus species have emerged to become an important focus in infectious diseases, as a result of the increasing use of immunosuppressive agents and high fatality associated with invasive aspergillosis. However, laboratory diagnosis of Aspergillus infections remains difficult. In this study, by comparing the metabolomic profiles of the culture supernatants of 30 strains...

Black Aspergilli (Aspergillus section Nigri) are widely distributed in various habitats. They act as food spoilage organisms, human pathogens, and mycotoxin producers and are frequently encountered in indoor environments. Black Aspergilli, specifically A. niger, A. welwitschiae, and A. carbonarius, produce different ochratoxins and fumonisins. Ochratoxins are known to induce renal disorders fol...

Sugar beet waste has potential value as a soil amendment and this work studied whether fermentation of the waste by Aspergillus niger would influence the growth and P uptake of arbuscular mycorrhizal (AM) fungi. Plants were grown in compartmentalised growth units, each with a root compartment (RC) and two lateral root-free compartments (RFC). One RFC contained untreated soil while the other RFC...

Some new sydnonyl-substituted thiazolidine derivatives were synthesized in high yields by the modified Knoevenagel condensation of 3-aryl-4-formylsydnones with thiazolidine-2,4-dione and 2-thioxo-thiazolidine-4-one, respectively. All the synthesized thiazolidine derivatives were screened by paper-disc method to identify their antimicrobial activities against three bacteria viz. Staphylococcus a...

We have synthesized a new series of bis-amide and hydrazide-containing derivatives of malonic acid and thiophenoladducts of acidhydrazones by the reaction of 2-[(N-benzoyl) 2, 5-dichloroanilido] acetohydrazide with various Carbonyl Compounds in 40 to 65% yield. Newly prepared compounds have been tested for their anti-bacterial activity against gram positive bacteria S.albus, S.aureus and gram n...

The comparative effectiveness of remediating water polluted with crude oil, using environment-friendly bacteria (Pseudomonas aeruginosa) and fungi (Aspergillus niger) were investigated. samples separately treated Aspergillus niger Pseudomonas aeruginosa. bioremediation kinetic efficiency for these systems was studied. At the end periods, oil grease content decreased from 47.0 mg/L in untreated ...

Cassia alata Linn is an important medicinal plant as well as ornamental flowering plant. The leaf decoction of Cassia alata has been used to treat infectious diseases in north eastern Nigeria. This study was embarked upon so as to evaluate the safety and efficacy of Cassia alata in the management of fungal infectious diseases. The leaves of the plant were collected, dried and extracted using wa...

Antimicrobial activity of different parts of Croccus sativus L. (saffron) including stigma, stamen, leaves and colora, extracted by various solvents, were tested against different bacteria (Microccucos luteus, Staphylococcus epidermitis, Staphylococcus aureus and E. coli) and fungi (Candida albicans, Aspergillus niger and Cladospourium sp) by cup plate diffusion method. Minimal Inhibitory Conce...

Ochratoxin A (OTA) is the main mycotoxin that has been detected in coffee. The occurrence of OTA in coffee beans can be because of environmental conditions and/or processing conditions. Three coffee processes were evaluated (wet, mechanical and dry processes), at different stages from harvesting to storage, and fungi producing OTA were enumerated and identified. The frequency of potential OTA-p...