Abstract:
:In the ovary of Aptenia cordifolia and Platythyra haeckeliana placentary papillae produce a slime containing polysaccharides and proteins. These papillae show two types of conspicuous vacuoles enclosed by rough ER cisternae and complexes of concentrically arranged rough ER. The enclosed vacuoles probably play an important role in the accumulation of the polysaccharide-protein slime. In the case of storage vesicles (first vacuole type) derivates of the Golgi apparatus are enclosed by ER. In other instances (second vacuole type) ER cisternae which have lost their membrane-bound ribosomes seem to delimit protoplasmic regions free of organelles.
journal_name
Plantajournal_title
Plantaauthors
Kristen Udoi
10.1007/BF00391915subject
Has Abstractpub_date
1977-01-01 00:00:00pages
161-7issue
2eissn
0032-0935issn
1432-2048journal_volume
133pub_type
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