Speed of nodulation and competitive ability among strains of Rhizobium leguminosarum bv phaseoli
This study examines the speed of nodulation of 20 strains of Rhizobium leguminosarum bv phaseoli, and relates this trait to the competitive performance of these strains with Phaseolus vulgaris L. At 25/20°C day/night temperature, and with 107 cells applied per growth pouch, there was a strong positi...
| Autor principal: | Oliveira, Luiz Antonio de |
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| Outros Autores: | Graham, Peter H. |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Archives of Microbiology
2020
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https://repositorio.inpa.gov.br/handle/1/19556 |
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oai:repositorio:1-19556 |
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oai:repositorio:1-19556 Speed of nodulation and competitive ability among strains of Rhizobium leguminosarum bv phaseoli Oliveira, Luiz Antonio de Graham, Peter H. Bacterial Growth Bean Nonhuman Plant Priority Journal Rhizobium Temperature Bacteria (microorganisms) Phaseolus Vulgaris Rhizobium Rhizobium Leguminosarum This study examines the speed of nodulation of 20 strains of Rhizobium leguminosarum bv phaseoli, and relates this trait to the competitive performance of these strains with Phaseolus vulgaris L. At 25/20°C day/night temperature, and with 107 cells applied per growth pouch, there was a strong positive correlation between the speed of nodulation and the competitiveness of strains with the nod+ fix- reference strain UMR 1116. Strains UMR 1084, 1125, 1165, 1173 and 1384 combined good competitive performance with extensive nodulation in the uppermost root regions. When inoculant levels in the RTM studies were reduced to 103 cells per pouch no correlation between the apparent competitiveness of strains and their speed in nodulation was evident, presumably because cells had to undergo multiplication before infection. Nodulation was also delayed when growth temperatures were raised to 31/26°C, but a correlation was still evident between competitive performance and nodulation in the region 0.1 to 5.0 mm below the RTM at the time of inoculation. From these results speed of nodulation can be used to estimate the competitive potential of Rhizobium strains, but only under carefully regulated conditions. The effects of inoculation level and temperature on the relationship between speed of nodulation and strain competitiveness could explain the inconsistent results obtained in earlier studies on this topic. © 1990 Springer-Verlag. 2020-06-15T22:09:53Z 2020-06-15T22:09:53Z 1990 Artigo https://repositorio.inpa.gov.br/handle/1/19556 10.1007/BF00248998 en Volume 153, Número 4, Pags. 311-315 Restrito Archives of Microbiology |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Bacterial Growth Bean Nonhuman Plant Priority Journal Rhizobium Temperature Bacteria (microorganisms) Phaseolus Vulgaris Rhizobium Rhizobium Leguminosarum |
| spellingShingle |
Bacterial Growth Bean Nonhuman Plant Priority Journal Rhizobium Temperature Bacteria (microorganisms) Phaseolus Vulgaris Rhizobium Rhizobium Leguminosarum Oliveira, Luiz Antonio de Speed of nodulation and competitive ability among strains of Rhizobium leguminosarum bv phaseoli |
| topic_facet |
Bacterial Growth Bean Nonhuman Plant Priority Journal Rhizobium Temperature Bacteria (microorganisms) Phaseolus Vulgaris Rhizobium Rhizobium Leguminosarum |
| description |
This study examines the speed of nodulation of 20 strains of Rhizobium leguminosarum bv phaseoli, and relates this trait to the competitive performance of these strains with Phaseolus vulgaris L. At 25/20°C day/night temperature, and with 107 cells applied per growth pouch, there was a strong positive correlation between the speed of nodulation and the competitiveness of strains with the nod+ fix- reference strain UMR 1116. Strains UMR 1084, 1125, 1165, 1173 and 1384 combined good competitive performance with extensive nodulation in the uppermost root regions. When inoculant levels in the RTM studies were reduced to 103 cells per pouch no correlation between the apparent competitiveness of strains and their speed in nodulation was evident, presumably because cells had to undergo multiplication before infection. Nodulation was also delayed when growth temperatures were raised to 31/26°C, but a correlation was still evident between competitive performance and nodulation in the region 0.1 to 5.0 mm below the RTM at the time of inoculation. From these results speed of nodulation can be used to estimate the competitive potential of Rhizobium strains, but only under carefully regulated conditions. The effects of inoculation level and temperature on the relationship between speed of nodulation and strain competitiveness could explain the inconsistent results obtained in earlier studies on this topic. © 1990 Springer-Verlag. |
| format |
Artigo |
| author |
Oliveira, Luiz Antonio de |
| author2 |
Graham, Peter H. |
| author2Str |
Graham, Peter H. |
| title |
Speed of nodulation and competitive ability among strains of Rhizobium leguminosarum bv phaseoli |
| title_short |
Speed of nodulation and competitive ability among strains of Rhizobium leguminosarum bv phaseoli |
| title_full |
Speed of nodulation and competitive ability among strains of Rhizobium leguminosarum bv phaseoli |
| title_fullStr |
Speed of nodulation and competitive ability among strains of Rhizobium leguminosarum bv phaseoli |
| title_full_unstemmed |
Speed of nodulation and competitive ability among strains of Rhizobium leguminosarum bv phaseoli |
| title_sort |
speed of nodulation and competitive ability among strains of rhizobium leguminosarum bv phaseoli |
| publisher |
Archives of Microbiology |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/19556 |
| _version_ |
1787141641543352320 |
| score |
11.755432 |