Withdrawn: Diversity of Bacterial Flora in the Mid Gut of Fifth Instar Larvae of Silk Worm<i>Bombyx mori</i>(L) (Race: PM X CSR2)

Khyade, Vitthalrao B.; Marathe, Rajendra J.

doi:10.1673/031.013.16401

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“…However, there has been a well‐balanced increase in the study of microbes as symbionts (Moran, ; Clarke et al ., ). The gut bacteria are valuable metabolic resources as they increase the survival of insects through supplementation of nutrients, complementation of digestive enzymes or through degradation of complex plant metabolites into simpler forms to enhance the digestion and absorption processes in the insect gut (Khyade & Marathe, ).…”

Section: Introductionmentioning

confidence: 99%

Bacterial community structure and diversity in the gut of the muga silkworm, Antheraea assamensis (Lepidoptera: Saturniidae), from India

Gandotra

Kumar

Naga³

et al. 2018

Insect Molecular Biology

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The muga silkworm, Antheraea assamensis, is exclusively present in the northeastern regions of India and rearing of this silkworm is a vocation unique to this region in the world. Through culture-dependent techniques, generic identification using 16S ribosomal RNA probes, diversity analysis and qualitative screening for enzyme activities, our studies have identified a number of bacterial isolates, viz. Bacillus spp., Serratia marcescens, Stenotrophomonas maltophilia, Pseudomonas stutzeri, Acinetobacter sp. and Alcaligens sp., inhabiting the gut of the muga silkworm. Analysis of the culturable bacterial community from the gut of An. assamensis revealed that Bacillus (54%) was the predominant bacterial genus followed by Serratia (24%), Pseudomonas (10%) and Alcaligens (6%). Significant differences in the Shannon-Wiener (H') and Simpson (D) diversity indices of gut bacteria were recorded for An. assamensis collected from different regions. H' and D values were found to be highest for An. assamensis from the Titabar region (H' = 4.73 ± 0.43; D = 10.00 ± 0.11) and lowest for individuals from the Mendipathar region (H' = 2.1 ± 0.05; D = 0.04 ± 0.00) of northeastern India. Qualitative screening for enzyme activities identified about 26 gut bacterial isolates having significantly higher cellulose, amylase and lipase activities. These isolates probably contribute to the digestion and nutrition of their host insect, An. assamensis.

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Section: Introductionmentioning

confidence: 99%