Email this pagePrint this page Rhodospirillum rubrum Go back to: Bacteria Quantity in Basket: none Product Code: BLB1027 Price: $10.00 Shipping Weight: 0.50 pounds Student Name: Teacher/Contact Name: School/Business Name: School/Business Phone Number: School/Business Address: Quantity: Gram-negative bacteria. Anaerobic in light and aerobic in dark. Purple-red in color from carotenoid pigments. Culture medium: Tryptic Soy Agar.