Polyamines in Paul's Scarlet rose suspension cultures

Autor: Graham R. Best, Elaine D. Clements, A. John Abbott, Terence A. Smith
Rok vydání: 1978
Předmět:
Zdroj: Planta. 144:63-68
ISSN: 1432-2048
0032-0935
DOI: 10.1007/bf00385008
Popis: Polyamine concentrations have been determined at intervals in suspension cultures of Paul's Scarlet rose cells during a culture period of 2 weeks. The mean concentrations of the putrescine, spermidine and spermine in the cells of the inocula were respectively 73, 70 and 13 nmol/g fresh weight. Putrescine at fitst increased with a peak (160 nmol/g) after 6 h, declined to a minimum (14 nmol/g) after 2-3 days, increased to a second peak (180 nmol/g) after 5-6 days, and then declined slowly to the concentration of the inoculum (taken on day 14). Spermidine rose slowly (×2.6) to a broad peak over 3-6 days (180 nmol/g), then declined slowly to the concentration in the inoculum. Spermine showed a rapid increase to a peak (130 nmol/g) after 2-3 days, and then declined rapidly, reaching the inoculum concentration by day 6. In one experiment the three amines showed a minor peak at day 11. Changes in spermine and RNA contents appeared to be correlated. DNA content reached a peak after that of the RNA (day 3) and did not appear to be correlated with the content of putrescine or the polyamines.
Databáze: OpenAIRE
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