ISSN:
1432-2145
Keywords:
Cucurbita pepo
;
Pollen
;
Amyloplast
;
Plastid division
;
Plastid differentiation
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract The development of plastids in the pollen of Cucurbita pepo was followed from meiosis to pollen maturation by quantitative light and electron microscopy. Plastids are initially undifferentiated, then divide, and at late microspore stage differentiate into amyloplasts containing starch. Later the amyloplasts form lobes and divide. Amyloplasts containing a single starch grain are present from the early bicellular stage. Plastid development is considered in relation to such cytoembryological features as the pollen does not dehydrate at anthesis and germination begins 3 min after pollination.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00230362
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