The C2H2 reduction activity of N2-fixing bacteria isolated from river sand was examined in a simulated spermosphere in the river sand. The change in the most probable number of N2 fixers with increasing quantities of CN- roughly corresponded to that in C2H2 reduction activity. However, the most probable number of non-N2-fixing bacteria decreased except for CN--tolerant ones. It is therefore speculated that cyanide evolved from seeds during a pregermination period may suppress the growth of general bacteria, but may promote the proliferation of N2 fixers, thus contributing to the establishment of a spermosphere.
|Number of pages||5|
|Journal||Biology and Fertility of Soils|
|Publication status||Published - 1996 Dec 1|
ASJC Scopus subject areas
- Agronomy and Crop Science
- Soil Science