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Occurrence of anthocyanoplasts in cell suspension cultures of sweet potato

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Abstract

Intensely pigmented and spherical vesicles (anthocyanoplasts) were found in anthocyanin-containing cells of sweet potato (Ipomoea batatas) suspension cultures. Anthocyanin synthesis began to first occur 24–48 h after exposure to light, and then numerous small red vesicles were detected under a microscope. The frequency of anthocyanoplast-containing cells rapidly increased to finally about 80% of the total cultured cells after 5 days of irradiation. Fully developed anthocyanoplasts reached 10–15 μm in diameter. On the other hand, neither anthocyanin synthesis nor development of anthocyanoplasts was induced in the dark-cultured cells. 2,4-D also inhibited anthocyanin synthesis and development of these vesicles. The results suggest that anthocyanoplasts might be a site of anthocyanin synthesis and/or accumulation.

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Abbreviations

2,4-D:

2,4-dichlorophenoxyacetic acid

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Communicated by F. Constabel

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Nozue, M., Yasuda, H. Occurrence of anthocyanoplasts in cell suspension cultures of sweet potato. Plant Cell Reports 4, 252–255 (1985). https://doi.org/10.1007/BF00269370

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  • DOI: https://doi.org/10.1007/BF00269370

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