Comparative evaluation of five Beauveria isolates for housefly (Musca domestica L.) control and growth optimization of selected strain

Abstract

Pathogenic potential of five native Beauveria isolates was assessed against housefly adult and larvae in laboratory bioassays. Beauveria isolate Beauveria bassiana HQ917687 showed highest virulence with 72.3 and 100 % mortality of larvae and adults of Musca domestica, respectively. Other Beauveria isolates caused 36-52 % housefly larval mortality while the adult mortalities varied between 72 and 82 %. B. bassiana HQ917687 also showed the fastest killing activity with LT(50) of 4 days (for larvae) and 3 days (for adults). This isolate showing highest virulence was selected for its growth optimization in terms of biomass and spore production using response surface methodology. The optimum value of temperature, yeast extract, and pH for maximum biomass and spore production was predicted as 27 °C, 5.00 g/l, and 6.75, respectively. Temperature was found to be the most critical factor influencing biomass and spore yield of the fungus and even nullified the effects of other factors at sufficiently higher value. The results obtained in this study depict the significance of appropriate strain selection and process parameter optimization in order to facilitate mass production of biocontrol agents.

Optimization of phytase production by Aspergillus japonicus Saito URM 5633 using cassava bast as substrate in solid state fermentation

“…Most of the studies involving enzyme production have been done using one variable-at-a-time (OVAT) approach, providing a favorable range of individual parameters for maximum productivity (Sharma et al, 2009;Mishra and Malik, 2012;. However, these studies completely lacks in representing the effect of interaction between different factors.…”

“…Some studies have utilized these tools statistical for optimization of different processes, e.g. in the enzyme production Maciel et al, 2011), dyes and metals removal (Sharma et al, 2009;Kaushik and Malik, 2011) and control and growth of the microorganism (Mishra and Malik, 2012;. Thus, the aim of this study was to optimize phytase production by Aspergillus japonicus URM 5633 in SSF using cassava bast as substrate and to partially characterize this enzyme.…”

The Influence of Organic Manure and Biochar on Cashew Seedling Performance, Soil Properties and Status

“…Pre-cropping chemical properties of soil, biochar and compost used in this study. pathogenic to insects, one of most common is B. bassiana, an entomopathogen which has extremely broad host range and used as commercial biopesticide for control of insects of agricultural, veterinary and medical significance [35] [36] [37]. The bioactivity of B. bassiana has been proof against many pests in the laboratory and efforts are being made to simulate the results in field condition.…”

Perbandingan Metode Aplikasi Jamur Entomopatogen Beauveria Bassiana Untuk Pengendalian Cylas Formicarius (Coleoptera: Curculionidae)

“…Isolat jamur B. bassiana yang diperoleh dari Bogor, Probolinggo, dan Tumpang (Malang) memiliki patogenisitas lebih tinggi terhadap larva maupun imago C. formicarius dibandingkan dengan isolat yang diperoleh dari lokasi lain (Prayogo, 2012). Hal ini mengindikasikan bahwa perbedaan asal isolat memiliki keragaman patogenisitas yang berbeda (Mwamburi et al, 2010;Sharififar et al, 2011;Mishra & Malik, 2012;Qazzaz et al, 2015).…”