. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 164 D. L. LOVETT AND D. L. FELDER. Figure 2. Histochemical localization of enzymes in fresh frozen transverse sections of posterior midgut diverticulum and hindgut in Penaeus selij'erus juveniles (PL,4(I). A. control section. B, section incubated with Naphthol AS-LC acetate as substrate to indicate esterase activity. C, section incubated with Naphthol AS-BI as substrate to indicate alkaline phosphatase activity (no precipitate present). D, section incubated with Naphthol AS-MX phosphate as substrate to indicate acid phosphat
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 164 D. L. LOVETT AND D. L. FELDER. Figure 2. Histochemical localization of enzymes in fresh frozen transverse sections of posterior midgut diverticulum and hindgut in Penaeus selij'erus juveniles (PL,4(I). A. control section. B, section incubated with Naphthol AS-LC acetate as substrate to indicate esterase activity. C, section incubated with Naphthol AS-BI as substrate to indicate alkaline phosphatase activity (no precipitate present). D, section incubated with Naphthol AS-MX phosphate as substrate to indicate acid phosphatase activity [in diverticulum, pre- cipitate present (arrows) along apical surfaces of cells], (hg, hindgut; pd, posterior midgut diverticulum). Scale bar indicates 150 ^m for all Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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