proplastid


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proplastid

(prō-plăs′tĭd)
n.
A cytoplasmic organelle from which a plastid develops.
References in periodicals archive ?
Until meiosis, plastids in the outer anther wall are proplastids.
Plastid nucleoid structure and protein composition vary during the development of proplastids to chloroplasts, suggesting that genome packaging may play a crucial role in the regulation of replication, transcription, and recombination.
The streaks may be a result of the loss of chloroplasts or by dedifferentiation of chloroplasts to smaller, colorless proplastids (Kirk and Tilney-Bassett, 1978).