Prior exposure of a fungal parasite to cyanobacterial extracts does not impair infection of its Daphnia host

Manzi F, Agha R, Mühlenhaupt M, Wolinska J (2022)
Hydrobiologia.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Autor*in
Manzi, Florent; Agha, Ramsy; Mühlenhaupt, MaxUniBi ; Wolinska, Justyna
Abstract / Bemerkung
**Abstract**
Cyanobacteria periodically dominate phytoplankton composition in lakes, and produce a wide array of toxic secondary metabolites. Blooms of cyanobacteria often coincide with infections of zooplankton by microparasites (such asMetschnikowia bicuspidata, a parasitic yeast ofDaphnia), and prior research has shown that cyanobacteria-based diets could mitigate fungal infections of the host. Here, we tested whether cyanotoxins could exert detrimental effects against free-living parasite stages: we inoculated two genotypes of the hostDaphnia galeata × longispinawith fungal spores, which were previously exposed to cyanobacterial extracts or to a placebo solution. Additionally, to test for interactive effects of cyanotoxins through environmental exposure and host consumption,Daphniafrom each treatment were fed using either green algae or the same cyanobacterium. Exposing spores to cyanobacterial extracts did not reduce their infectivity; instead, parasite infectivity was increased, but only on one host genotype. The effect of host diet on parasite growth was also host-genotype dependent, with only oneDaphniagenotype showing impaired spore production under a toxic diet. Our results suggest that dissolved cyanobacterial compounds released during blooms may not exert any detrimental effect on fungal spore banks, but likely influence transmission of the parasite when incorporated as part of the host’s diet.
Erscheinungsjahr
2022
Zeitschriftentitel
Hydrobiologia
ISSN
0018-8158
eISSN
1573-5117
Page URI
https://pub.uni-bielefeld.de/record/2963165

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Manzi F, Agha R, Mühlenhaupt M, Wolinska J. Prior exposure of a fungal parasite to cyanobacterial extracts does not impair infection of its Daphnia host. Hydrobiologia. 2022.
Manzi, F., Agha, R., Mühlenhaupt, M., & Wolinska, J. (2022). Prior exposure of a fungal parasite to cyanobacterial extracts does not impair infection of its Daphnia host. Hydrobiologia. https://doi.org/10.1007/s10750-022-04889-7
Manzi, F., Agha, R., Mühlenhaupt, M., and Wolinska, J. (2022). Prior exposure of a fungal parasite to cyanobacterial extracts does not impair infection of its Daphnia host. Hydrobiologia.
Manzi, F., et al., 2022. Prior exposure of a fungal parasite to cyanobacterial extracts does not impair infection of its Daphnia host. Hydrobiologia.
F. Manzi, et al., “Prior exposure of a fungal parasite to cyanobacterial extracts does not impair infection of its Daphnia host”, Hydrobiologia, 2022.
Manzi, F., Agha, R., Mühlenhaupt, M., Wolinska, J.: Prior exposure of a fungal parasite to cyanobacterial extracts does not impair infection of its Daphnia host. Hydrobiologia. (2022).
Manzi, Florent, Agha, Ramsy, Mühlenhaupt, Max, and Wolinska, Justyna. “Prior exposure of a fungal parasite to cyanobacterial extracts does not impair infection of its Daphnia host”. Hydrobiologia (2022).

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