194 HALVERSON AND STACEY for many plant-microbe interactions. The purpose of this
article is to identify the signal molecules involved in plantmicrobe interactions and the …

Several books on N2fixation have been published recently (32, 67, 90, 101, 154, 178), and a
variety of specialized topics concerning N2 fixation have been reviewed, including …

This review examines the properties and function of leghaemoglobin, particularly in relation
to an efficient phase of Rhizobium bacteroid respiration which occurs in legume root …

Infection of legume roots with Rhizobium species results in the development of a root nodule
structure in which the bacteria form an intracellular symbiosis with the plant. We report here …

The enzyme responsible for N2 fixation, nitrogenase, is only found in prokaryotes. It consists
of two metalloproteins, both irreversibly destroyed by exposure to the O2 of air. The MoFe …

It was known that nitrogenase genes and proteins are well conserved even though they are
present in a large variety of phylogenetically diverse nitrogen fixing bacteria. This has lead …

Rhizobium and Bradyrhizobium have attracted great attention due to their capacity to
establish a symbiosis with the roots of legumes, resulting in the reduction of atmospheric …

Ineffective alfalfa nodules formed by Rhizobium meliloti nif:: Tn5 mutants were examined by
light and electron microscopy. R. meliloti nifH:: Tn5 mutants formed nodules that were similar …

Legume root nodules use the ascorbate‐glutathione pathway to remove harmful H2O2. In
the present study. effective and ineffective nodules from soybean and alfalfa were compared …

The slow-growing soybean symbiont, Rhizobium japonicum, has not readily been
accessible so far to classical mutational analysis of genes responsible for symbiotic nitrogen …