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Morphological and genetic diversity of symbiotic cyanobacteria from cycads.
J Basic Microbiol. 2010 Jun; 50(3):254-65.JB

Abstract

The morphological and genetic diversity of cyanobacteria associated with cycads was examined using PCR amplification techniques and 16S rRNA gene sequence analysis. Eighteen symbiotic cyanobacteria were isolated from different cycad species. One of the symbiotic isolates was a species of Calothrix, a genus not previously reported to form symbioses with Cycadaceae family, and the remainder were Nostoc spp. Axenic cyanobacterial strains were compared by DNA amplification using PCR with either short arbitrary primers or primers specific for the repetitive sequences. Based on fingerprint patterns and phenograms, it was revealed that cyanobacterial symbionts exhibit important genetic diversity among host plants, both within and between cycad populations. A phylogenetic analysis based on 16S rRNA gene sequence analysis revealed that most of the symbiotic cyanobacterial isolates fell into well-separated clades.

Authors+Show Affiliations

Department of Microbiology, School of Life Sciences, Bharathidasan University, Tiruchirappalli Tamilnadu, India.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

20473963

Citation

Thajuddin, Nooruddin, et al. "Morphological and Genetic Diversity of Symbiotic Cyanobacteria From Cycads." Journal of Basic Microbiology, vol. 50, no. 3, 2010, pp. 254-65.
Thajuddin N, Muralitharan G, Sundaramoorthy M, et al. Morphological and genetic diversity of symbiotic cyanobacteria from cycads. J Basic Microbiol. 2010;50(3):254-65.
Thajuddin, N., Muralitharan, G., Sundaramoorthy, M., Ramamoorthy, R., Ramachandran, S., Akbarsha, M. A., & Gunasekaran, M. (2010). Morphological and genetic diversity of symbiotic cyanobacteria from cycads. Journal of Basic Microbiology, 50(3), 254-65. https://doi.org/10.1002/jobm.200900343
Thajuddin N, et al. Morphological and Genetic Diversity of Symbiotic Cyanobacteria From Cycads. J Basic Microbiol. 2010;50(3):254-65. PubMed PMID: 20473963.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Morphological and genetic diversity of symbiotic cyanobacteria from cycads. AU - Thajuddin,Nooruddin, AU - Muralitharan,Gangatharan, AU - Sundaramoorthy,Mariappan, AU - Ramamoorthy,Rengasamy, AU - Ramachandran,Srinivasan, AU - Akbarsha,Mohamed Abdulkadar, AU - Gunasekaran,Muthukumaran, PY - 2010/5/18/entrez PY - 2010/5/18/pubmed PY - 2010/9/21/medline SP - 254 EP - 65 JF - Journal of basic microbiology JO - J Basic Microbiol VL - 50 IS - 3 N2 - The morphological and genetic diversity of cyanobacteria associated with cycads was examined using PCR amplification techniques and 16S rRNA gene sequence analysis. Eighteen symbiotic cyanobacteria were isolated from different cycad species. One of the symbiotic isolates was a species of Calothrix, a genus not previously reported to form symbioses with Cycadaceae family, and the remainder were Nostoc spp. Axenic cyanobacterial strains were compared by DNA amplification using PCR with either short arbitrary primers or primers specific for the repetitive sequences. Based on fingerprint patterns and phenograms, it was revealed that cyanobacterial symbionts exhibit important genetic diversity among host plants, both within and between cycad populations. A phylogenetic analysis based on 16S rRNA gene sequence analysis revealed that most of the symbiotic cyanobacterial isolates fell into well-separated clades. SN - 1521-4028 UR - https://www.unboundmedicine.com/medline/citation/20473963/Morphological_and_genetic_diversity_of_symbiotic_cyanobacteria_from_cycads_ L2 - https://doi.org/10.1002/jobm.200900343 DB - PRIME DP - Unbound Medicine ER -