Abstract:
:The diversity among 45 cyanobacterial isolates from 11 different Gunnera species originating from different geographical areas was examined. By means of polymerase chain reaction (PCR) fingerprinting with short tandemly repeated repetitive (STRR) sequences as primers, ten groups of symbiotic cyanobacteria and five unique isolates not belonging to a particular group were identified. Most groups were restricted to one geographical area, indicating a limited distribution of related cyanobacterial strains. An extensive cyanobacterial diversity was found both within and between the 11 different Gunnera species. Within a particular plant and even within the same stem gland, more than one cyanobacterial strain at a time could be present. These results indicate a low specificity in Gunnera-Nostoc symbiosis.
journal_name
Arch Microbioljournal_title
Archives of microbiologyauthors
Nilsson M,Bergman B,Rasmussen Udoi
10.1007/s002039900113keywords:
subject
Has Abstractpub_date
2000-02-01 00:00:00pages
97-102issue
2eissn
0302-8933issn
1432-072Xjournal_volume
173pub_type
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