Open AccessEffect of calcium and other metal ions on pectic activities from autolysed cultures of Alternaria alternata
Author(s) -
Vázquez C.,
Martínez M.J.,
Lahoz R.,
Reyes F.
Publication year - 1986
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.1986.tb01798.x
Subject(s) - alternaria alternata , chemistry , calcium , divalent , metal , pectin , metal ions in aqueous solution , biochemistry , food science , botany , biology , organic chemistry
The effect of increasing concentrations of Ca 2+ , Mg 2+ , Cu 2+ , Zn 2+ , Na + and EDTA on the pectic enzymic activities (polymethylgalacturonase, endopectinase and pectin‐lyase) present in the autolytic complex from Alternaria alternata has been studied. In all cases the divalent metal ions and EDTA produced an increased inhibition correlated with increasing concentration of each ion. An opposite effect was shown by the Na + ion, which produced an increase in pectic enzymic activities, principally at low concentrations.