Bacterial glycolipids. Glycosyl diglycerides in gram-positive bacteria

The interrelation of phosphatidylethanolamine and glycosyl diglycerides in bacterial membranes.

Anti -Bacterial Activity of Punica granatum Flower Extract against Several Gram-Negative and Positive Bacteria

Background and objectives: Bacterial antibiotic resistance is a major issue in the process of infectious disease treatments. The aim of this study was an evaluation of the antibacterial activity of Punica granatum flower extract against several gram-negative and positive clinical bacterial isolates.   Methods: An adequate dried flower of an endemic mature Punica granatum plant was used for ex...

Bacteriocins of gram-positive bacteria.

In recent years, a group of antibacterial proteins produced by gram-positive bacteria have attracted great interest in their potential use as food preservatives and as antibacterial agents to combat certain infections due to gram-positive pathogenic bacteria. They are ribosomally synthesized peptides of 30 to less than 60 amino acids, with a narrow to wide antibacterial spectrum against gram-po...

Hyaluronidases of Gram-positive bacteria.

Bacterial hyaluronidases, enzymes capable of breaking down hyaluronate, are produced by a number of pathogenic Gram-positive bacteria that initiate infections at the skin or mucosal surfaces. Since reports of the hyaluronidases first appeared, there have been numerous suggestions as to the role of the enzyme in the disease process. Unlike some of the other more well studied virulence factors, m...

The occurrence of phosphatidylethanolamine and glycosyl diglycerides in thermophilic bacilli.

Ph 0s p h at id y le t han ol am i n e, a comm o n constituent of the polar 1 i pid s of Gram n ega t i ve bacteria, is consistently found in only one genus of Gram-positive bacteria, the bacilli (Goldfine, 1972). Gram-positive bacteria commonly contain diglycosyl diglycerides (Shaw & Baddiley, 1968; Shaw, I 970) which often occur together with phosphatidylethanolamine in the bacilli. An interr...