Enzymatic breakdown of pectin and acid-inhibition of the infection of Medicago roots by rhizobium

Production of a pectinase precedes infection. Acidity in the pH-range 4.5 to 5.5, which inhibits production of root-nodules by inhibiting the infection of the root-hairs, also inhibits the action of the pectinase on pectin. The enzyme's pH-requirements may determine those of nodulation.

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Bibliographic Details
Published in:Plant and soil 1969-02, Vol.30 (1), p.117-120
Main Author: Munns, D.N
Format: Article
Language:English
Subjects:
alfalfa
Calcium
Enzymes
Infections
Inoculation
Nodulation
Nodules
Nutrient solutions
Rhizobium
SHORT COMMUNICATION
Viscosity
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Description
Summary:Production of a pectinase precedes infection. Acidity in the pH-range 4.5 to 5.5, which inhibits production of root-nodules by inhibiting the infection of the root-hairs, also inhibits the action of the pectinase on pectin. The enzyme's pH-requirements may determine those of nodulation.
ISSN:0032-079X
1573-5036
DOI:10.1007/BF01885269