Pregled bibliografske jedinice broj: 1101785
Effect of infection by crayfish plague pathogen on growth of juvenile marbled crayfish Procambarus virginalis (Lyko, 2017)
Effect of infection by crayfish plague pathogen on growth of juvenile marbled crayfish Procambarus virginalis (Lyko, 2017) // FEMS Online Conference on Microbiology 2020 Abstract Book
Beograd, Srbija, 2020. str. 468-468 doi:10.26226/morressier.5f5b60612c3338b5c13cd25d (poster, međunarodna recenzija, sažetak, ostalo)
CROSBI ID: 1101785 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Effect of infection by crayfish plague pathogen
on growth of juvenile marbled crayfish
Procambarus virginalis (Lyko, 2017)
Autori
Dobrović, Ana ; Bielen, Ana ; Vukelić, Mara ; Pavić, Dora ; Hudina, Sandra
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo
Izvornik
FEMS Online Conference on Microbiology 2020 Abstract Book
/ - , 2020, 468-468
Skup
FEMS Online Conference on Microbiology 2020
Mjesto i datum
Beograd, Srbija, 28.10.2020. - 31.10.2020
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
invasive species ; immunity cost
Sažetak
Crayfish plague is one of the most lethal diseases for native freshwater crayfish, while invasive crayfish are tolerant but may be chronically infected. In chronically infected populations the disease can cause direct (mortaility) but also indirect effects such as reduced growth due to increased energy investment in immune response.The aim of this study was to examine the direct (mortality) and indirect (reduction of growth) effects of chronic infection by crayfish plague pathogen (Aphanomyces astaci strain Psl) on individually kept juvenile marbled crayfish (Procambarus virginalis) under laboratory conditions. We conducted an infection trial using two concentrations of A.astaci spores (7500 and 15000 spores/ml) to test if repeated infection by A. astaci (at least two infections) leads to change in growth of infected compared to non- infected individuals (control group). We recorded mortality and measured length and weight of control group and infected groups before each succeeding infection. At the end of the trial the presence of the pathogen was analysed using previously developed A. astaci specific PCR assay. Direct effects of infection by A. astaci were observed at a concentration of 15000 spores/ml. Mortality was recorded in 20 % of infected individuals and additional 15 % of infected individuals had reduced viability and visible signs of infection. Indirect effects in terms of significantly lower length and weight increments of repeatedly infected individuals compared to control group were observed.
Izvorni jezik
Engleski
Znanstvena područja
Biologija
POVEZANOST RADA
Projekti:
HRZZ-UIP-2017-05-1720 - Promjene sastava patogena i imunološkog odgovora tijekom širenja areala uspješnih invazivnih vrsta slatkovodnih rakova (STRIVE) (Hudina, Sandra, HRZZ - 2017-05) ( CroRIS)
