Changes in Bradyrhizobium sp. Polysaccharides and in peanut root nodule polyamines produced by the fungicide Mancozeb

ANGELINI JORGE; FABRA ADRIANA; CASTRO STELLA

SYMBIOSIS

Año: 1999 vol. 27 p. 157 - 168

0334-5114

We have prwiausly shown that the fungicide Manmzeb reduced Bmdyrhizobiurn sp. growth by 50%, produced bidernical alterations such as changes in membrane composition and polyarnjne contents, and affected the peanut root-bacteria interaction in greenhouse experiments. In this work we show the variations caused by the fungicide on the molecules related with the peanut-baaeria interaction such as lipopolysaccharides (LPS) and cyclic p-glucans. Furthermore, the changes on peanut rmt nodule polyamines induced by Maneazeb are analyzed.