Abstract
The influence of geographic location, season, age, and part of the digestive tract on bacterial diversity was evaluated on intestinal microflora of honeybees, wasps, and cockroaches using DGGE analysis. PCR-DGGE analyses with universal bacterial primers targeting 200-bp region of the 16S rDNA gene afforded the profile of complex bacterial DNA; specific primers were used to determine the profile of bifidobacteria whose concentration in digestive tract was determined by real-time PCR. Selected PCR products were identified by sequencing. The microflora of the bees exhibited little variations among the hives from distant locations. Their bifidobacterial population formed 2.8–8.4 % of total bacteria and was very homogeneous. The total gut microflora of wasps was also homogeneous, only two samples being affected by the season or the location; on the other hand, wasp bifidobacterial population was very heterogeneous. Cockroaches showed the highest variations in microflora composition, the age and diet being the ultimate factors; bifidobacteria counts also varied among tested individuals (0.1–34.1 % of total bacteria). Our results suggest that nutrition habits are the strongest factor affecting the insect microflora, giving higher variations to omnivorous species.
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Abbreviations
- DGGE:
-
denaturing gradient gel electrophoresis
- SSCP:
-
single-strand conformation polymorphism
- T-RFLP:
-
terminal restriction fragment length polymorphisms
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Mrázek, J., Štrosová, L., Fliegerová, K. et al. Diversity of insect intestinal microflora. Folia Microbiol 53, 229–233 (2008). https://doi.org/10.1007/s12223-008-0032-z
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DOI: https://doi.org/10.1007/s12223-008-0032-z