proplastid


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proplastid

(prō-plăs′tĭd)
n.
A cytoplasmic organelle from which a plastid develops.
References in periodicals archive ?
In most cases, tapetal proplastids undergo division during the early stages of microsporogenesis and next develop into elaioplasts (Dickinson, 1973; Pacini & Juniper, 1979b; Keijzer & Willemse, 1988a; Murgia et al.
From meiocytes to ripe pollen grain, only proplastids (Fig.
With respect to plastids, ripe pollen grains can be divided into two categories: with amyloplasts and with proplastids.