Nucleic acids in the culture fluids of<i>Rhodopseudomonas capsulatus</i>and other heterotrophic bacteria

Katayama, Tadashi; Kobayashi, Michiharu; Okuda, Azuma

doi:10.1080/00380768.1967.10431982

Cited by 8 publications

(1 citation statement)

References 9 publications

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“…In our preceding papers the distribution (1,2), ecological problems (3,4), and the products of photosynthetic bacteria (5)(6)(7)(8) have been studied. It was also reported that the growth and nitrogen fixation of photosynthetic bacteria were accelerated remarkably in the system of symbiosis with other heterotrophic microorganisms like Azotobacter (9) and Bacillus megaterium (10) ; moreover the products generated by photosynthetic bacteria were used by plants (11) and animals in water (2,4), directly or indirectly.…”

mentioning

confidence: 99%

Seasonal changes of photosynthetic bacteria and their products

Haque¹,

Kobayashi²,

Fujii³

et al. 1969

Soil Science and Plant Nutrition

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mentioning

confidence: 99%

Seasonal changes of photosynthetic bacteria and their products

Haque¹,

Kobayashi²,

Fujii³

et al. 1969

Soil Science and Plant Nutrition

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Effect of yeast extracts on higher plants

1980

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Gnotobiotic cultures of rice plants up to ear stage in the absence of combined nitrogen source but in the presence of free living nitrogen fixing bacteriaAzotobacter vinelandii andRhodopseudomonas capsulata

et al. 1981

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SUMMARYAn all glass tight growth chamber, entirely sterilizable, has been constructed to carry out axenic and gnotobiotic cultures of rice plants (Oryza sativa L.). When grown in liquid medium and in the absence of combined nitrogen but in the presence of the diazotrophs Azotobacter vinelandii and Rhodopseudomonas capsulata, rice plants exhibited a complete biological cycle from germination up to ear stage, during a period of time similar to the one encountered in french paddy soil of Camargue. In one experiment, mannitol was given to rice culture medium together with Azotobacter vinelandii and Rhodopseudomonas capsulata. In another experiment, mannitol was not given together with Rhodopseudomonas, and still positive nitrogen gain was obtained, although it was less than culture with mannitol.When 1 s N labeled cells of Rhodopseudomonas were added in rice culture medium, 15N was partly transferred to rice plant. Among the nitrogen substances excreted from the bacteria in the rhizosphere medium, large organic molecules were shown to be the most abundant in our experimental conditions. Moreover, the concentration of free ammonia or aminoacids present in the rice rhizosphere were always compatible with a bacterial nitrogenase activity.

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Nucleic acids in the culture fluids ofRhodopseudomonas capsulatusand other heterotrophic bacteria

Cited by 8 publications

References 9 publications

Seasonal changes of photosynthetic bacteria and their products

Seasonal changes of photosynthetic bacteria and their products

Effect of yeast extracts on higher plants

Gnotobiotic cultures of rice plants up to ear stage in the absence of combined nitrogen source but in the presence of free living nitrogen fixing bacteriaAzotobacter vinelandii andRhodopseudomonas capsulata

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