eng Oriental Scientific Publishing Company Biosciences Biotechnology Research Asia 0973-1245 2013-12-28 10 2 10580 article Eman Ahmed Helmy Rasha Mohamed Farrag 2 Mohamed Mokhtar Mohamadein 3 Regional Center for Mycology and Biotechnology, Al-Azhar University, Cairo, Egypt. Regional Center for Mycology and Biotechnology, Al-Azhar University, Cairo, Egypt. Colleges of Applied Medical Science, King Salman Ben AbdelAziz University, Al-Kharj, KSA. Ubiquinone and protein profiles of twenty nine Penicillium aurantiogriseum type strains were studied as chemotaxonomic markers. Both markers succeeded in classifying the investigated type strains into three (for ubiquinone) and four (for protein) main groups. The present study provides useful markers for the intraspecific discrimination of the investigated strains and concluded unique in profiling the ubiquinone and protein patterns using HPLC and SDS-PAGE, respectively, of twenty three P. aurantiogriseum type strains. https://www.biotech-asia.org/vol10no2/intraspecific-variations-among-strains-of-penicillium-aurantiogriseum-using-ubiquinone-and-protein-profiles/ Penicillium aurantiogriseum; Protein; SDS-PAGE; Ubiquinone; HPLC; Intraspecific; Chemotaxonomy.