Abstract:
:Sieve-tube plastids of Aristolochia (5 species investigated) contain several starch grains and always one large crystalloid. In Asarum (3 species investigated) starch has not been found in the sieve-tubes. Their plastids contain several cuneate crystalloids that are sometimes arranged around an invisible centre. Asarum sieve-tube plastids look almost like typical plastids of monocotyledon sieve-tubes.-Crystalloids of Aristolochia and of Asarum sieve-tube plastids are composed of 50-60 Å subunits in straight and parallel order as crystalloids in monocotyledon sieve-tube plastids are.The results of the investigations of the fine structure are discussed in relation to the position of the Aristolochiaceae in the system of angiosperms.
journal_name
Plantajournal_title
Plantaauthors
Behnke HDdoi
10.1007/BF00388406subject
Has Abstractpub_date
1971-03-01 00:00:00pages
62-9issue
1eissn
0032-0935issn
1432-2048journal_volume
97pub_type
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