ISSN:
1432-2048
Keywords:
Anemia (fern)
;
Germination (mRNA)
;
Pteridophyta
;
Spore (germination)
;
Translation
;
Transcription
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Induction of germination by gibberellin or light is not a prerequisite for protein and RNA synthesis in spores of A. phyllitidis. Imbibed but non-induced spores of this fern show a high rate of translation as well as appreciably transcription of all RNA types. The pattern of in-vitro translation of polyadenylated RNA present in the dry spore corresponds with the in-vivo translation products under non-inductive conditions. New proteins are not detectable among the in-vitro and in-vivo translation products until 48 h after a germination stimulus. Although the dark imbibition of spores is accompanied by a reduction in the lengths of polyadenylated tracts of the stored mRNA, this fraction is characterized by a remarkable stability which is undoubtedly a prerequisite for the high viability of these fern spores. The importance of these results for the general meaning of stored mRNA in spore and seed germination processes is discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00394577
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