Exine Receptors
作者:
JohnR. Rowley,
JohnJ. Skvarla,
期刊:
Grana
(Taylor Available online 1993)
卷期:
Volume 32,
issue sup2
页码: 21-25
ISSN:0017-3134
年代: 1993
DOI:10.1080/00173139309428974
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Structures that receive sporopollenin are similar in the pollen grains of a wide variety of angiosperms and in the coniferPinus. These structures are rod-shaped, with a central core that accepts stains strongly and an outer binder zone that only weakly accepts stains. These sporopollenin-accumulating rods are substructures of the exine units we call “tufts”. In many taxa tuft substructures are covered by receptor-independent (extra-tuft) accumulated sporopollenin and surfaces are smooth. We show an example (Quercus coccifera) of the acetolysis resistance of extra-tuft accumulated sporopollenin followed by its removal through oxidation which reveals the tufts.
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