Abstract:
:Ethylene stimulated the incorporation of (32)P into RNA in the abscission zone of bean explants (Phaseolus vulgaris L. var. Red Kidney). The enhancement was observed in all fractions separated by methylated albumin kieselguhr column chromatography, although the magnitude of the increase was not the same for each fraction. Differential extraction of the nucleic acids indicated that the ethylene stimulation was confined to the fraction extracted with sodium lauryl sulfate, with the increase mainly in Fraction III (Ribosomal RNA) and Fraction IV (Messenger RNA). Actinomycin D, which blocks ethylene-stimulated abscission, inhibited (32)P incorporation into all column fractions. 5-Fluorouracil, which blocked 50% of the ethylene-enhanced (32)P incorporation, did not inhibit ethylene-enhanced abscission. The results indicate that ethylene may regulate abscission through control of specific RNA's.
journal_name
Plant Physioljournal_title
Plant physiologyauthors
Holm RE,Abeles FBdoi
10.1104/pp.42.8.1094subject
Has Abstractpub_date
1967-08-01 00:00:00pages
1094-102issue
8eissn
0032-0889issn
1532-2548journal_volume
42pub_type
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