Antibacterial activity of leaf extract of Breonadia salicina (Rubiaceae), an endangered medicinal plant of Saudi Arabia.
Wild plants can contain bioactive compounds with potential activity against disease-causing microorganisms. In the Kingdom of Saudi Arabia, there are many plant species that may have antibacterial, antifungal, or antiviral activities, among other properties. We extracted bioactive compounds with methanol as well as with water from leaves of Breonadia salicina, which is an endangered plant found in the wild in Saudi Arabia. These extracts were tested against the bacteria Bacillus subtilis, Pseudomonas aeruginosa, Shigella sonnei, Escherichia coli, and Staphylococcus aureus. Both extracts showed antibacterial activity against all of the microorganisms, and thus, B. salicina leaf extract has potential as an antimicrobial agent for the preservation of foods, instead of synthetic chemical compounds. We found that the methanolic leaf extract was more effective than the aqueous crude extract against B. subtilis, P. aeruginosa, and S. aureus.
Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia.
F
F
Al-Qurainy
Abdel-Rhman
AR
Z Gaafar
S
S
Khan
M
M
Nadeem
M
M
Tarroum
A
A
Alaklabi
J
J
Thomas
D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000494:pharmacology*; D001412:Bacillus subtilis / Q000187:drug effects; D004926:Escherichia coli / Q000187:drug effects; D006801:Humans; D010936:Plant Extracts / Q000737:chemistry / Q000494:pharmacology*; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D011550:Pseudomonas aeruginosa / Q000187:drug effects; D019666:Rubiaceae / Q000737:chemistry*; D012529:Saudi Arabia; D012764:Shigella sonnei / Q000187:drug effects; D013211:Staphylococcus aureus / Q000187:drug effects
D000900:Anti-Bacterial Agents; D010936:Plant Extracts