Pollen Starch from Amylomaize
1971; Wiley; Volume: 23; Issue: 11 Linguagem: Inglês
10.1002/star.19710231103
ISSN2192-4236
AutoresW. Banks, C Greenwood, D. D. Muir, J T Walker,
Tópico(s)Plant Reproductive Biology
ResumoAbstract Starch has been extracted from the pollen of band 5 and band 7 amylomaizes which are homozygous for the amylose extender (ae) gene. Microscopic examination showed the starch granules to be small, prolate ellipsoids, having minor diameters of approximately 0.5 μ and major diameters of 1–2 μ. Potentiometric iodine titration of the starches showed the apparent amylose content to be high, and to be grossly dependent on the temperature of measurement. This behavioural pattern is similar to that observed for the endosperm starches of amylomaize. It is therefore concluded that the starches of the gametophytic and sporophytic generations of amylomaize are similar in type.
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