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1-Aminocyclopropane-1-Carboxylic Acid Concentrations in Shoot-Forming and Non-Shoot-Forming Tobacco Callus Cultures
Karen Lee Grady and James A. Bassham
Vol. 70, No. 3 (Sep., 1982), pp. 919-921
Published by: American Society of Plant Biologists (ASPB)
Stable URL: http://www.jstor.org/stable/4267612
Page Count: 3
You can always find the topics here!Topics: Callus, Plants, Auxins, Subcultures, Ethylene production, Plant tissues, Pith, Acidic amino acids, Amino acids, Paper chromatography
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Shoot-forming tobacco (Nicotiana tabacum var. Wisconsin 38) callus tissues contain significantly lower concentrations of the ethylene precursor 1-aminocyclopropane-1-carboxylic acid compared to non-shoot-forming callus tissues. This difference is evident 1 day after subculture to shoot-forming or non-shoot-forming medium, and is maintained through the first week of growth. The lack of auxin in shoot-forming medium is the probable cause for this difference in ACC concentrations.
Plant Physiology © 1982 American Society of Plant Biologists (ASPB)