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Control of leghaemoglobin synthesis in snake beans.
The finding that the plant is the genetic determinant of leghaemoglobin production in legume nodules was further tested by inoculating snake beans with two strains of Rhizobium selected to give large genetic differences, and results strongly support the hypothesis that the mRNA for leghaenoglobin is transcribed from plant DNA. Expand
Ammonia assimilation by rhizobium cultures and bacteroids.
There was no evidence for the operation of the glutamine synthetase/glutamate synthase system in ammonia assimilation in root nodules, suggesting that ammonia produced by nitrogen fixation in the bacteroid is assimilated by enzymes of the plant system. Expand
Acetylene reduction by nitrogen-fixing preparations from Clostridium pasteurianum.
  • M. Dilworth
  • Chemistry, Medicine
  • Biochimica et biophysica acta
  • 31 October 1966
It is suggested that the first step in N 2 reduction is a two-electron reduction leading to a non-dissociable intermediate at the oxidation level of diimide. Expand
Working with rhizobia
This manual brings together state-of-the-art methods for the study of root-nodule bacteria, both in the free-living state and in symbiosis with legumes, and provides guidance on how study of the symbiosis might best be tackled. Expand
Constructs for insertional mutagenesis, transcriptional signal localization and gene regulation studies in root nodule and other bacteria.
The new constructs provide useful tools for insertional mutagenesis, transcriptional signal localization and gene regulation studies in the root nodule bacteria and possibly other gram-negative bacteria. Expand
The role of iron in nodulation and nitrogen fixation in Lupinus angustifolius L
The results suggest that iron is involved in symbiotic N2 fixation through effects on both nodule initiation and nodule function, and that the symbiosis has a higher iron requirement than that needed for host plant growth. Expand
Maintenance of Intracellular pH and Acid Tolerance in Rhizobium meliloti.
The ability to generate a large pH gradient under acid conditions may be a better indicator of acid tolerance in R. meliloti under field conditions than is growth on acidic agar plates. Expand
The model legume Medicago truncatula A17 is poorly matched for N2 fixation with the sequenced microsymbiont Sinorhizobium meliloti 1021.
Medicago truncatula (barrel medic) A17 is currently being sequenced as a model legume, complementing the sequenced root nodule bacterial strain Sinorhizobium meliloti 1021 (Sm1021). In this study,Expand
Microvirga lupini sp. nov., Microvirga lotononidis sp. nov. and Microvirga zambiensis sp. nov. are alphaproteobacterial root-nodule bacteria that specifically nodulate and fix nitrogen with
Three novel species of Microvirga are proposed on the basis of genotypic, phenotypic and DNA relatedness data, and concatenated sequences show that the sequences of Lut6(T), WSM3557(T) and WSM3693 (T) were most closely related to that of Rhizobium etli CFN42(T). Expand
ActP controls copper homeostasis in Rhizobium leguminosarum bv. viciae and Sinorhizobium meliloti preventing low pH‐induced copper toxicity
It is shown that copper homeostasis is an essential mechanism for the acid tolerance of these root nodule bacteria since it prevents this heavy metal from becoming overtly toxic in acidic conditions. Expand