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Comparative study among lactophenol blue, lactophenol solution and proteinase-K lytic solution for rostellar hooks morphometry of Echinococcus granulosus protoscolices Cover

Comparative study among lactophenol blue, lactophenol solution and proteinase-K lytic solution for rostellar hooks morphometry of Echinococcus granulosus protoscolices

Open Access
|Jan 2020

Figures & Tables

Fig.1

Microscopic photography of protoscolices at different magnification (a, b) before use of lytic solutions (zero time), showing aggregation of protoscolices within the preservation solution (ethanol 70%).

Fig. 2

Microscopic photography of protoscolices after 30 min from zero time of addition of lactophenol blue (a), lactophenol solution (b), proteinase-K lytic solution (c, d).

Fig. 3

Microscopic photography of protoscolices after 60 min from zero time of addition of lactophenol blue (a), lactophenol solution (b), proteinase-K lytic solution (c, d).

Fig. 4

Microscopic photography of protoscolices after 90 min from zero time of addition of lactophenol blue (a), lactophenol solution (b), proteinase-K lytic solution (c, d).

Fig. 5

Microscopic photography of protoscolices after 120 min from zero time of addition of lactophenol blue (a), lactophenol solution (b), proteinase-K lytic solution (c, d); arrows indicated the sites of lysis in cellular membrane.

Fig. 6

Microscopic photography of protoscolices after 150 min from zero time of addition of lactophenol blue (a), lactophenol solution (b), proteinase-K lytic solution (c, d).

Fig. 7

Microscopic photography of protoscolices after 240 min from zero time of addition of lactophenol blue (a), lactophenol solution (b), proteinase-K lytic solution (c, d), arrows indicated the sites of lysis in cellular membrane.

Fig. 8

Microscopic photography of hooks after lysis the membrane of protoscolices after 240 min from zero time of addition of proteinase-K lytic solution to the protoscolices.

Clustering behavior of protoscolices and visibility of components at different times after treated with lactophenol-based solutions and Proteinase-K lytic solution_

Time of exposureLactophenol blue or lactophenol solutionProteinase-K lytic solution
Time 30 minutesProtoscolices aggregated/ Components and rostellar hooks not visible (Fig. 2a-b)Protoscolices separated/ clearer vision of components (Fig. 2c-d)
Time 60 minutesProtoscolices aggregated/ Components and rostellar hooks not visible (Fig. 3a-b)Protoscolices separated/ clearer vision of components (Fig. 3c-d)
Time 90 minutesProtoscolices aggregated/ clearer vision of components (Fig. 4a-b)Protoscolices separated/ vision of components same as time 60 (Fig. 4c-d)
Time 120 minutesProtoscolices partially separated/ components visible but with no lysis of membrane (Fig. 5a-b)Protoscolices well separated/ starting of membrane lysis (Fig. 5c-d)
Time 150 minutesProtoscolices partially separated/ components visible but with no lysis of membrane (Fig. 6a-b)Protoscolices well separated/ increasing of membrane lysis (Fig. 6c-d)
Time 240 minutesProtoscolices partially separated/ components visible (better with lactophenol) but with no lysis of membrane (Fig. 7a-b)Protoscolices well separated/ membrane lysis semi-completed (Fig. 7c-d) Rostellar hooks free and visible (Fig. 8)
DOI: https://doi.org/10.2478/helm-2020-0010 | Journal eISSN: 1336-9083 | Journal ISSN: 0440-6605
Language: English
Page range: 63 - 70
Submitted on: Nov 15, 2019
Accepted on: Dec 13, 2019
Published on: Jan 25, 2020
In partnership with: Paradigm Publishing Services
Publication frequency: Volume open

© 2020 S. J. Hammad, S. Cavallero, F. S. Al-Nasiri, S. D᾿ Amelio, published by Slovak Academy of Sciences, Institute of Parasitology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.