DNA renaturation experiments gave evidence to conclude that Rhizopus arrhizus, R. OIyzae, R. delemar, Amylomyces rou.xii, R. delemar var. minimus, R. delemar var. multiplicisporus, R. arrhizus var. delemar, R. chungkuoensis var. isqfermentarius, and R. javanicus var. kawasakiensis can be accommodated in three taxa, namely, R. arrhizus var. arrhizus, R. arrhizus var. rozedi, and R. arrhizus var....

A resting culture of Rhizopus arrhizus (ATCC 11145) transformed verrucarin A into 16-hydroxyverrucarin A, whereas R. arrhizus transformed verrucarin B into a mixture of 16-hydroxyverrucarin B and 3'-hydroxyverrucarin A. Relative to verrucarins A and B, the 16-hydroxy derivatives showed marked increases in activity, as tested in vivo against P388 mouse leukemia.

Mucormycosis or black fungus is usually a rare but life-threatening infection resulting from commonly distributed fungi belongingto the Mucorale orders. The disease was previously known as zygomycosis, since Rhizopus species, such as Rhizopus arrhizus, Rhizopus microsporus, and Rhizopus oryza were more isolated from infected patients than Mucor (Chegini et al., 2020, Spellberg, 2017)

A cadmium tolerant strain of Aspergillus niger and a lead tolerant strain of Rhizopus arrhizus were studied for distribution of accumulated toxic heavy metals in the mycelia in comparison to wild type strains. Accumulated cadmium in the cell wall fractions of cadmium tolerant Aspergillus niger was more than the wild type strain. Cytosolic fraction contained the next highest load of metal. Simil...

Microbiological analysis of samples taken at various stages of malting pearl millet cultivars was investigated. The results indicated that total bacterial count, mould count, staphylococcal count, coliform count and yeast count ranged from 4.08 to 5.28 log10 CFU/g, 2.50 to 3.71, 1.78 to 4.20, 2.65 to 3.65, and 2.54 to 3.70, respectively. The predominant microorganism in unmalted grain was Bacil...

Two different strains of Rhizopus sp. i.e. R. oligosporus -M30 and R. arrhizus -M26 were employed for the production of acid protease using different agro-residues such as rice husk, rice bran, wheat bran, defatted soybean meal and sunflower meal as a sole carbon source. R. oligosporus -M30 gave maximum enzyme level with soybean meal (15.6 U/gds) while R. arrhizus -M26 with sunflower meal (13.6...