Endogenous arabitol and mannitol improve shelf life of encapsulated Metarhizium brunneum

Krell V, Jakobs-Schönwandt D, Persicke M, Patel A (2018)
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY 34(8): 108.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
Successful commercialization of microbial biocontrol agents, such as Metarhizium spp., is often constrained by poor drying survival and shelf life. Here, we hypothesized that culture age would influence endogenous arabitol, erythritol, mannitol and trehalose contents in M. brunneum mycelium and that elevated levels of these compounds would improve drying survival and shelf life of encapsulated mycelium coupled with enhanced fungal virulence against T. molitor larvae. We found that culture age significantly influenced endogenous arabitol and mannitol contents in mycelium with highest concentrations of 0.6 +/- 0.2 and 2.1 +/- 0.2 A mu g/mg after 72 h, respectively. Drying survival of encapsulated mycelium was independent of culture age and polyol content with 41.1 +/- 4.4 to 55.0 +/- 6.2%. Best shelf life was determined for biomass harvested after 72 h at all investigated storage temperatures with maximum values of 59.5 +/- 3.3% at 5 A degrees C followed by 54.5 +/- 1.6% at 18 A degrees C and 19.4 +/- 1.3% at 25 A degrees C after 6 months. Finally, high fungal virulence against T. molitor larvae of 83.3 +/- 7.6 to 98.0 +/- 1.8% was maintained during storage of encapsulated mycelium for 12 months with larval mortalities being independent of culture age and polyol content. In conclusion, our findings indicate beneficial effects of endogenous polyols in improving shelf life of encapsulated mycelium and this may spur the successful development of microbial biocontrol agents in the future.
Stichworte
Biological control; Drying survival; Encapsulation; Endogenous polyols; Microbial biocontrol agents
Erscheinungsjahr
2018
Zeitschriftentitel
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
Band
34
Ausgabe
8
Art.-Nr.
108
ISSN
0959-3993
eISSN
1573-0972
Page URI
https://pub.uni-bielefeld.de/record/2930264

Zitieren

Krell V, Jakobs-Schönwandt D, Persicke M, Patel A. Endogenous arabitol and mannitol improve shelf life of encapsulated Metarhizium brunneum. WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY. 2018;34(8): 108.
Krell, V., Jakobs-Schönwandt, D., Persicke, M., & Patel, A. (2018). Endogenous arabitol and mannitol improve shelf life of encapsulated Metarhizium brunneum. WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY, 34(8), 108. doi:10.1007/s11274-018-2492-x
Krell, V., Jakobs-Schönwandt, D., Persicke, M., and Patel, A. (2018). Endogenous arabitol and mannitol improve shelf life of encapsulated Metarhizium brunneum. WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY 34:108.
Krell, V., et al., 2018. Endogenous arabitol and mannitol improve shelf life of encapsulated Metarhizium brunneum. WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY, 34(8): 108.
V. Krell, et al., “Endogenous arabitol and mannitol improve shelf life of encapsulated Metarhizium brunneum”, WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY, vol. 34, 2018, : 108.
Krell, V., Jakobs-Schönwandt, D., Persicke, M., Patel, A.: Endogenous arabitol and mannitol improve shelf life of encapsulated Metarhizium brunneum. WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY. 34, : 108 (2018).
Krell, Vivien, Jakobs-Schönwandt, Désirée, Persicke, Marcus, and Patel, Anant. “Endogenous arabitol and mannitol improve shelf life of encapsulated Metarhizium brunneum”. WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY 34.8 (2018): 108.
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