Taxonomic status ofAnabaena azollae: An overview |
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| Authors: | J Plazinski C Franche C -C Liu T Lin W Shaw B E S Gunning B G Rolfe |
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| Institution: | (1) Research School of Biological Sciences, Australian National University, 2601 Canberra City, ACT, Australia;(2) Present address: ORSTOM, 213 rue Lafayette, F-75010 Paris, France;(3) Present address: Fujian Academy of Agricultural Science, National Azolla Research Centre, Fuzhou, People's Republic of China;(4) Present address: Darwin Institute of Technology, 5792, NT, Australia |
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| Abstract: | Despite the long-standing and widespread use of the symbiotic association between the aquatic fern Azolla and its cyanobacterial
symbiontAnabaena azollae to augment nitrogen supplies in rice paddy soils, very little is known about taxonomic aspects of the symbiosis. The two
partners normally remain associated throughout vegetative and reproductive development, limiting the opportunities for interchanges.
We have used monoclonal antibodies and DNA/DNA hybridization techniques to show that the cyanobacterial partner is not uniform
throughout the genus Azolla, and that substantial diversification has occurred. With these procedures it will be possible
to characterize genotypes of the cyanobacterium and to monitor experiments aimed at synthesizing new combinations ofAzolla species andAnabaena azollae strains. |
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| Keywords: | Anabaena azollae Azolla Cyanobacteria DNA/DNA hybridization taxonomy |
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