Endosperms and embryos of mature dry castor bean seeds contain active ribosomes

Mature dry endosperms and embryos of castor bean contain ribosomes which are capable of catalysing protein synthesis in vitro. This observation contradicts previous reports that ribosomes are absent from mature dry endosperms. On hydration of the mature seeds the polyribosome content of both embryos...

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Bibliographic Details
Published inPhytochemistry (Oxford) Vol. 18; no. 10; pp. 1617 - 1619
Main Authors Bewley, J.Derek, Larsen, Karen M.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.01.1979
Subjects
castor bean
desiccation
dry seed
endosperm
Euphorbiaceae
ribosomes
Ricinus communis
desiccation
ribosomes
castor bean
Euphorbiaceae
dry seed
endosperm
Ricinus communis
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Summary:Mature dry endosperms and embryos of castor bean contain ribosomes which are capable of catalysing protein synthesis in vitro. This observation contradicts previous reports that ribosomes are absent from mature dry endosperms. On hydration of the mature seeds the polyribosome content of both embryos and endosperms increases. These polyribosomes are lost on subsequent dehydration but, again, ribosomes are conserved. REFERENCES
ISSN:0031-9422
1873-3700
DOI:10.1016/0031-9422(79)80169-7