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Protein synthesis during germination of pollen: Studies on polyribosome formation

Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, ISSN: 0005-2787, Vol: 179, Issue: 1, Page: 199-203
1969
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The activation of the pollen grain of Tradescantia paludosa during germination is accompanied immediately by the initiation of protein synthesis. About 38 % of the ribosomes in ungerminated pollen grains are in polysomes. During germination there is a very rapid formation of additional polysomes beginning within as short a period as 2 min. A fraction of the ribosomes in the ungerminated pollen grain appears to be prepackaged with messenger RNA (mRNA), defined by the sensitivity of polysomes to dissociation by mild ribonuclease treatment.

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