초록

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Abstract ▼ AI-Helper

There have been many problems like plasmolysis in the ultrastructural studies with kelps. The present study was conducted with series of different fixatives and buffer solutions and several resins to solve the plasmolysis phenomena. The fixative of 1470 mosmol($3\%$ glutaraldehyde, $...

There have been many problems like plasmolysis in the ultrastructural studies with kelps. The present study was conducted with series of different fixatives and buffer solutions and several resins to solve the plasmolysis phenomena. The fixative of 1470 mosmol($3\%$ glutaraldehyde, $2.4\%$ paraformaldehyde in 0.05M cacodylate buffer with 0.2M sucrose and $0.5\%$ caffeine at pH of 7.2) showed the least frequency of plasmolysis. The relationship between the concentration of primary fixatives and the frequency of plasmolysis was not found. With above fixative the possibility of plasmolysis during infiltration period was not identified using ultra-low viscosity resin. Generally, the kelp(Laminaria religiosa) contains a lot of mucilage, which interupts the infiltration of fixative. The possible physiological mechanisms related with mucilage secretion may be unable to fix the region of plasmalemma properly.

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