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Gas chromatography-mass spectrometric determinations of abscisic acid levels in the cap and the apex of maize roots

โœ Scribed by L. Rivier; H. Milon; P.-E. Pilet

Publisher
Springer-Verlag
Year
1977
Tongue
English
Weight
491 KB
Volume
134
Category
Article
ISSN
0032-0935

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โœฆ Synopsis

Quantitative analyses o f a b s c i s i c acid (ABA) in different parts of maize r o o t tips (Zea mays L. cv. K e l v e d o n 33) were p e r f o r m e d by mass fragmentography using the h e x a d e u t e r a t e d analog of A B A as internal standard. It was found that the cap and the apex contained 36.1 gg and 66.5 lag A B A kg t fresh weight, respectively. The possibility that the g r o w t h regulator f o r m e d in the cap and inhibiting the elongation of the extending zone of the r o o t is A B A is discussed.

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