Abstract
Endophytic bacteria are bacteria that live within plant tissues and can produce the same compounds as their host. Leea indica, commonly known as bandicoot berry, is a medicinal plant with various bioactive compounds. A study on the diversity and antioxidant activity of endophytic bacteria from L. indica has never been reported. So this study is essential to conduct to explore the diversity and antioxidant activity of endophytic bacteria in the L.indica plant. The objective of the study was to isolate, identify, and screening of antioxidant activity of endophytic bacteria from L. indica leaf. We obtained 51 bacterial isolates with various of morphology. Microscopic identification showed that 44 isolates were categorized into Gram-negative (23 rod-shaped, 18 cocci-shaped, and 3 cocci bacilli-shaped isolates), and the other 7 isolates were categorized into Gram-positive (6 rod-shaped and 1 cocci-shaped isolates). The biochemical test showed that 100% of isolates have positive catalase, and 13.7% were suspected of having pathogenic activity on blood agar. The antioxidant activity showed that 17 isolates (more than 70%) had high inhibition by scavenging free radicals. It can be concluded that there are various endophytic bacteria isolated from L. Indica leaf and potentially producing antioxidant activity as their host.
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