Specific inhibition of lignification in Bryonia dioica: effects on thigmomorphogenesis

Rubbing-induced lignification in Bryonia dioica internodes is significantly impaired by N(o-hydroxyphenyl) and N(o-aminophenyl) sulfinamoyl tertiobutyl acetate, specific inhibitors of cinnamyl alcohol dehydrogenase, an enzyme which is strictly associated with lignin monomer synthesis. Along with the...

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Bibliographic Details
Published in:Plant physiology (Bethesda) 1987-05, Vol.84 (1), p.10-11
Main Authors: Jaegher, G. de, Boyer, N
Format: Article
Language:English
Subjects:
ACETATE
ACETATES
ACETATOS
Alcohols
Biological and medical sciences
Cell walls
Communications
CRECIMIENTO
CROISSANCE
CUCURBITACEAE
ENTRE NOEUD
ENZYME INHIBITORS
Enzymes
Fundamental and applied biological sciences. Psychology
GROWTH
INHIBIDORES DE ENZIMAS
INHIBITEUR D'ENZYME
INTERNODES
INTERNODIOS
LIGNIFICACION
LIGNIFICATION
Lignin
Minerals
OXIDOREDUCTASES
OXIDORREDUCTASAS
OXYDOREDUCTASE
Plant growth
Plant growth. Development of the storage organs
Plant physiology and development
Plants
Vegetative apparatus, growth and morphogenesis. Senescence
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Summary:Rubbing-induced lignification in Bryonia dioica internodes is significantly impaired by N(o-hydroxyphenyl) and N(o-aminophenyl) sulfinamoyl tertiobutyl acetate, specific inhibitors of cinnamyl alcohol dehydrogenase, an enzyme which is strictly associated with lignin monomer synthesis. Along with the reduction of lignification, these inhibitors counteract the inhibition of elongation due to rubbing. These results indicate that lignification participates in the thigmomorphogenetic growth response of Bryonia dioica internodes. In a general way, the data point to the causal role of lignification in the limitation of plant growth.
ISSN:0032-0889
1532-2548
DOI:10.1104/pp.84.1.10