Use of NaCN to increase the growth of N2-fixing bacteria in a model spermosphere mimicked by sucrose and amino acids leached by seeds

Hiroshi Ota, Y. Esashi

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)305-309
Number of pages5
JournalBiology and Fertility of Soils
Volume22
Issue number4
Publication statusPublished - 1996 Dec 1
Externally publishedYes

ASJC Scopus subject areas

  • Microbiology
  • Agronomy and Crop Science
  • Soil Science

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