Responses to high temperature of the Azolla-Anabaena association, determined in both the fern and in the cyanobacterium
The responses to high temperature of the cyanobacterial symbiont and the host fern in tile Azolla-Anabaena symbiosis were studied by using Azolla strains with heterologous Anabaena azollae Strasburger of without Anabaena. At 26/18°C, symbiotic Azolla grew better than the corresponding Anabaena-free...
| Veröffentlicht in: | The New phytologist. - 1979. - 111(1989), 4 vom: 20. Apr., Seite 625-630 |
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| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
1989
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| Zugriff auf das übergeordnete Werk: | The New phytologist |
| Schlagworte: | Journal Article Anaebaena azollae Azolla filiculoides Azolla microphylla cyanobacteria fern high temperature tolerance nitrogen fixation |
| Zusammenfassung: | The responses to high temperature of the cyanobacterial symbiont and the host fern in tile Azolla-Anabaena symbiosis were studied by using Azolla strains with heterologous Anabaena azollae Strasburger of without Anabaena. At 26/18°C, symbiotic Azolla grew better than the corresponding Anabaena-free Azolla. A high temperature-sensitive species Azolla filiculoides Lamarck, produced smaller biomass under conditions of 37 °C (day)/29 °C (night) than the corresponding Anabaena-free Azolla grown in N-containing medium. A. filiculoides with Anabaena from temperature tolerant Azolla microphylla Kaulfuss was more effective at N2 fixation than A. filiculoides with homologous Anabaena. A microphylla with Anabaena from A. filiculoides grew more slowly and fixed less N2 than the strains with homologous Anabaena. In the presence of combined N at 37°/29 °C, A. microphylla grew better than A. filiculoides with Anabaena from A. microphylla. Tolerance of the Azolla-Anabaena association to high temperature is, therefore, determined both in the host fern and symbiont Anabaena |
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| Beschreibung: | Date Revised 20.04.2021 published: Print Citation Status PubMed-not-MEDLINE |
| ISSN: | 1469-8137 |
| DOI: | 10.1111/j.1469-8137.1989.tb02356.x |