Plastid Pigments of Gametophytes and Sporophytes of Musci.

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Abstract
The plastid pigments of the gametophytes and sporophytes of 5 mosses, Entoden seductrix, Thuidium recognitum, Mnium sylvaticum, Brachythecium acuminatum, and Ditrichum vaginans, were determined by conventional methods of differential solubility, column chromatography, and spectrophotometry. Chlorophylls a and b, alpha and beta carotene, lutein, violaxanthin, and zeaxanthin were found in both the sporophytes and gametophytes of all of the mosses. In addition neoxanthin was identified in both generations of Ditrichum vaginans and Entodon seductrix. The latter species also contained cryptoxanthin. The data indicate no qualitative differences in the major pigments of the haploid and diploid generations of a particular moss and that the green plastids in moss sporophytes are chloroplasts.

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