Journal article
A continuous culture study of the phosphorus nutrition of Rhizobium trifollii WU95, Rhizobium NGR234 and Bradyrhizobium CB756
Archives of Microbiology, Vol.140(2-3), pp.276-280
1984
Abstract
With continuous cultures in a fully defined minimal salts medium steady states were achieved at both limiting and non-limiting concentrations of phosphate in the inflowing medium for Rhizobium trifolii WU95, cowpea Rhizobium NGR234, and Bradyrhizobium CB756. Millimolar growth yields obtained from P-limited cultures varied over 2-fold from 3.2 g dry weight·(mmol P)-1 for WU95 to 5.3 g dry weight·(mmol P)-1 for CB756 and 7.2 g dry weight·(mmol P)-1 for NGR234. For both WU95 and NGR234 growth under P-excess conditions resulted in elevated levels of total biomass P and the storage compound polyphosphate, compared with P-limited cultures. However, P-limited cultures of these two strains still contained significant quantities of polyphosphate. The P-status for CB756 cultures did not affect either total biomass P or polyphosphate levels. Alkaline phosphatase was maximally derepressed in P-limited cultures of WU95 and NGR234. However, in CB756 alkaline phosphatase was not detected at significant levels regardless of its P supply.
These data suggest that growth of rhizobia is controlled predominantly by the attainment of a critical internal P level.
Details
- Title
- A continuous culture study of the phosphorus nutrition of Rhizobium trifollii WU95, Rhizobium NGR234 and Bradyrhizobium CB756
- Authors/Creators
- J.B. Smart (Author/Creator) - Murdoch UniversityA.D. Robson (Author/Creator) - The University of Western AustraliaM.J. Dilworth (Author/Creator) - Murdoch University
- Publication Details
- Archives of Microbiology, Vol.140(2-3), pp.276-280
- Publisher
- Springer Verlag
- Identifiers
- 991005542928807891
- Murdoch Affiliation
- School of Environmental and Life Sciences
- Language
- English
- Resource Type
- Journal article
UN Sustainable Development Goals (SDGs)
This output has contributed to the advancement of the following goals:
Source: InCites
Metrics
38 Record Views
InCites Highlights
These are selected metrics from InCites Benchmarking & Analytics tool, related to this output
- Collaboration types
- Domestic collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.97 Plant Pathology
- 3.97.892 Rhizobium-Legume Symbiosis
- Web Of Science research areas
- Microbiology
- ESI research areas
- Microbiology