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Uptake of 2-[14C]abscisic acid by senescing leaf tissue of radish,Raphanus sativusL.

✍ Scribed by Andrew J. Colquhoun; John R. Hillman

Publisher: Springer-Verlag
Year: 1975
Tongue: English
Weight: 482 KB
Volume: 124
Category: Article
ISSN: 0032-0935
DOI: 10.1007/bf00390066

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✦ Synopsis

The uptake of [(14)C]abscisic acid by radish leaf discs rises one to two days after excision and then declines to six days. This pattern of uptake is not identical to the uptake of [(14)C]sucrose. The uptake of both [(14)C]abscisic acid and [(14)C]sucrose is substantially reduced by anaerobic conditions.

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The effects of abscisic acid on senescen

The effects of abscisic acid on senescence in leaf discs of radish,Raphanus sativusL.

✍ A. J. Colquhoun; J. R. Hillman 📂 Article 📅 1972 🏛 Springer-Verlag 🌐 English ⚖ 684 KB

After a 6 day incubation period, abscisic acid (ABA) at 10(-4) M retarded the decline in pigment levels and promoted the decline in protein levels of radish leaf discs. ABA treatment also retarded the rise in the specific activity of the RNA fraction (calculated by counts per minute incorporated of