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PLANT PHYSIOLOGY , Vol 101, Issue 3 833-837, Copyright © 1993 by American Society of Plant Biologists
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ENVIRONMENTAL AND STRESS PHYSIOLOGY |
Low Temperature Induces the Accumulation of Alcohol Dehydrogenase mRNA in Arabidopsis thaliana, a Chilling-Tolerant Plant
J. A. Jarillo, A. Leyva, J. Salinas and J. M. Martinez-Zapater
Departamento de Proteccion Vegetal, Centro de Investigacion y Tecnologia, Instituto Nacional de Investigacion y Tecnologia Agraria y Alimentaria, Carretera de La Coruna Km 7, 28040 Madrid, Spain
mRNA encoding alcohol dehydrogenase (ADH) increases in etiolated seedlings
and leaves of Arabidopsis thaliana (L.) Heynh. upon exposure to low
temperature. The analysis of this response after water stress and abscisic
acid (ABA) treatments in Arabidopsis wild type and ABA-deficient and
-insensitive mutants indicates that cold accumulation of ADH mRNA could be
induced by both anaerobic metabolism and increase of ABA concentration
resulting from low temperature exposure. By using one Arabidopsis ADH null
mutant, we show that ADH activity is not required for successful
development of freezing tolerance in this species.
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