Summary
The proportion of chromatin in the condensed state was determined in various tissues of five plant species. InVicia faba the influence of treatments with inhibitors of transcription and several growth temperatures was studied. No significant differences could be found except inPhaseolus vulgaris, where cell aging may contribute to some variation in chromatin organization, and in the highly specialized antipodal cells ofMelandrium dioicum, which exhibited an atypical nuclear ultrastructure. These quantitative data confirm earlier suggestions (Nagl 1979 a) that condensed chromatin in angiosperms is fairly species-specific, but not tissue-specific or function-related.
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Nagl, W., Cabirol, H., Lahr, C. et al. Nuclear ultrastructure: Morphometry of nuclei from various tissues ofCucurbita, Melandrium, Phaseolus, Tradescantia, andVicia . Protoplasma 115, 59–64 (1983). https://doi.org/10.1007/BF01293581
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DOI: https://doi.org/10.1007/BF01293581