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ISOELECTRIC FOCUSING OF INDOLEACETIC ACID DEGRADING ENZYMES FROM PEA ROOTS
Author(s) -
Van Der Mast C. A.
Publication year - 1970
Publication title -
acta botanica neerlandica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.871
H-Index - 87
eISSN - 1438-8677
pISSN - 0044-5983
DOI - 10.1111/j.1438-8677.1970.tb00657.x
Subject(s) - isoelectric point , enzyme , biochemistry , isoelectric focusing , peroxidase , chemistry , membrane , biology
SUMMARY In homogenates of pea roots only one protein complex is responsible for the degradation of IAA. It consists at least of two enzymes which are probably intimately associated. This protein complex possesses an isoelectric point of 9.5 and has only a small net charge at neutral pH. At least 3 other peroxidases are present with a similar range of molecular weight as commonly displayed by the IAA degrading protein. Probably these enzymes are also bound to membranes.