. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. PORPHYRIN IN THE PLANARIAN 71 The absorption spectrum of the methyl ester of the porphyrin in chloroform had maxima at I 626 m/x, II 582 m/x, III 575 m/x, IV 535 m/x, V 502 m/x, VI 408 m/x. The maxima reported by Grinstein et al. (1945) for the methyl ester of uropor- phyrin in chloroform are I 626 m/x, II m/x, III m/x, IV 536 m/x, V m/x, VI 408 z UJ u_ u. UJ o o o 2 H X U 04 03 02. 400 450 500 550 600 WAVE LENGTH FIGURE 1. The absorption spectrum of the planarian porphyrin extracted in 25% HC1
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. PORPHYRIN IN THE PLANARIAN 71 The absorption spectrum of the methyl ester of the porphyrin in chloroform had maxima at I 626 m/x, II 582 m/x, III 575 m/x, IV 535 m/x, V 502 m/x, VI 408 m/x. The maxima reported by Grinstein et al. (1945) for the methyl ester of uropor- phyrin in chloroform are I 626 m/x, II m/x, III m/x, IV 536 m/x, V m/x, VI 408 z UJ u_ u. UJ o o o 2 H X U 04 03 02. 400 450 500 550 600 WAVE LENGTH FIGURE 1. The absorption spectrum of the planarian porphyrin extracted in 25% HC1 directly from water-insoluble granules is shown. The extinction coefficient (log ^ ) is plotted against the wave-length (in millimicrons). After hydrolysis of the methyl ester with 25% HC1, the purified planarian por- phyrin had maxima at I 596 m/x, II 553 m/x, (511 m/x) III 409 m/x; order of inten- sity III, II, I. After purification by esterification and hydrolysis, the absorption at 496 m/x is removed; this suggests that the absorption at 496 m/x was due to another substance, perhaps a related compound. There is considerable similarity between the absorption spectrum of the por-. 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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