Bacterial Symbionts of Insects: Exploring their Role in Insect Nutritional Composition

Abstract

Insects have evolved complex symbiotic relationships with bacterial microorganisms that play a crucial role in their nutritional ecology. This study investigated the role of bacterial symbionts in enhancing the nutritional composition of Rhynchophorus phoenicis. The bacterial symbionts were isolated and characterized using standard microbiological techniques. The results revealed that the isolates R2 and R5 recorded the highest nutrient composition, followed by R3 and R1. The isolates were identified as Lactiplantibacillus plantarum strain ZG308 (LPZ3), Limosilactobacillus fermentum strain 2760 (LF2), Bifidobacteriu dentum strain MB0148 (BDM1), and Bifidobacterium bifidum strain CNCM1-4319 (BBC4). The distribution of the nutritional enhanced bacteria among the studied samples showed that isolate LPZ3 was the most prevalent, followed by isolate LF2, and then BDM1 and BBC4. Statistical analysis revealed a significant difference in the nutrient composition among the isolates (p < 0.05). The study concluded that the bacterial symbionts were able to enhance the nutritional composition of Rhynchophorus phoenicis, suggesting their potential as a natural agent for improving animal nutrition.