Polyribosome Formation and Protein Synthesis in Imbibed but Dormant Lettuce Seeds | Zendy

David W. Fountain | Zendy; J. Derek Bewley | Zendy

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Polyribosome Formation and Protein Synthesis in Imbibed but Dormant Lettuce Seeds

Author(s) -

David W. Fountain,

J. Derek Bewley

Publication year - 1973

Publication title -

plant physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.52.6.604

Subject(s) - imbibition , lactuca , polysome , dormancy , darkness , germination , protein biosynthesis , biology , botany , leucine , chemistry , biochemistry , amino acid , rna , ribosome , gene

Dormancy is maintained in Grand Rapids lettuce (Lactuca sativa) seeds imbibed on water in darkness at 25 C. Polyribosome formation and protein synthesis occur early in the imbibition phase and considerable polysomal material is also present after 24 and 48 hours, even though the seeds have failed to germinate. Incorporation of labeled leucine into protein following a 24-hour preincubation period shows that these polysomes are active in protein synthesis.

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