RNA and protein metabolism during adventitious root formation in stem cuttings of Phaseolus aureus

Autor:	S. Yasmin, B. C. Jarvis, M. T. Coleman
Rok vydání:	1985
Předmět:	Cell division Physiology food and beverages Spermine RNA Cell Biology Plant Science General Medicine Biology Indole-3-butyric acid biology.organism_classification Hypocotyl chemistry.chemical_compound Cutting chemistry Biochemistry Genetics Primordium Phaseolus
Zdroj:	Physiologia Plantarum. 64:53-59
ISSN:	1399-3054 0031-9317
DOI:	10.1111/j.1399-3054.1985.tb01212.x
Popis:	Indole-3-butyric acid (IBA, 10−4M), spermine (7 × 10−5M) and vitamin D2 (6.3 × 10−5M), all of which enhance rooting in mung bean cuttings (Phaseolus aureus Roxb. cv. Berkin), influence RNA metabolism. Total and poly (A)+-RNA synthesis within the hypocotyl is inhibited by each of these chemicals within 24 h. These changes precede induced cell division and are therefore associated with the so-called inductive period of regeneration during which some cells in the hypocotyl undergo dedifferentiation. However, following subsequent transfer of cuttings to borate, which is an essential prerequisite for development of root primordia in these cuttings, RNA synthesis is enhanced by pretreatments with IBA, spermine or vitamin D2. Furthermore, IBA inhibits synthesis and turnover of protein within the hypocotyl.
Databáze:	OpenAIRE
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