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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%).
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).
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).
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).
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.
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).
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.
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.
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
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Accepted on: Dec 13, 2019
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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.