| [basic research on the use of mosquito spiroplasmas in the control of the major tropical diseases transmitted by mosquitoes]. | an increasing number of experimental findings suggest that spiroplasma taiwanense (class mollicutes) has considerable potential for inclusion in integrated mosquito vector control programmes. these experimental findings are outlined in conjunction with preferred strategies for its eventual use as a biological control agent. | 1991 | 1687886 |
| pathogenicity of spiroplasma taiwanense for larval aedes aegypti mosquitoes. | helical replicative forms, but not the persistent non-replicative forms, of spiroplasma taiwanense abalain-colloc et al. (isolated from the mosquito anopheles sinensis wiedemann in taiwan) were shown to reduce significantly the survival of aedes aegypti (l.) mosquito larvae reared in 10 ml of water with 0.3 ml of s.taiwanense suspensions added on days 0 and 3. the suspensions contained, respectively, helical forms at a concentration of 10(9) colour change units (ccu)/ml and persistent forms at 1 ... | 1991 | 1768913 |
| spiroplasma (mollicutes: spiroplasmataceae) pathogenic for aedes aegypti and anopheles stephensi (diptera: culicidae). | intrathoracic inoculation with the mosquito spiroplasma, spiroplasma taïwanense abalain-colloc et al., was found to reduce significantly the survival of adult male and female aedes aegypti (l.) and anopheles stephensi liston. this spiroplasma also reduced significantly the flight capacity of adult female ae. aegypti 5-8 d after inoculation and adult female an. stephensi 4 d after inoculation. adult female an. stephensi were incapable of flight 5 d after inoculation. as such, s. taïwanense joins ... | 1991 | 2056503 |
| polypeptide cartography of spiroplasma taiwanense. | spiroplasma taiwanense is the first member of the class mollicutes to be subjected to polypeptide cartography using computerized image analysis. the small genome size characteristic of this group was shown to code for low numbers of polypeptides when compared to other bacterial species. silver-stained two-dimensional electrophoresis gels, following separation by either isoelectric focusing and sodium dodecyl sulfate-polyacrylamide gel electrophoresis (iso-dalt) or nonequilibrium ph gradient elec ... | 1994 | 7859730 |
| characterization of a cryptic extrachromosomal element isolated from the mollicute spiroplasma taiwanense. | characterization of an extrachromosomal element from an organism in the genus spiroplasma is likely to be an essential step in the development of cloning vectors which replicate in these organisms. a restriction map for an 11-kb element, designated pct-1, isolated from spiroplasma taiwanese strain ct-1 (atcc 43302) has been constructed using the restriction enzymes bg/ii, ecori, hincii, hindiii, hpai, psti, and xbai. this element is distinct from any previously characterized spiroplasma virus or ... | 1994 | 7899521 |
| experimental infection of aedes aegypti mosquitoes, suckling mice, and rats with four mosquito spiroplasmas. | four mosquito spiroplasmas, spiroplasma culicicola, spiroplasma sabaudiense, spiroplasma taiwanense, and an isolate designated cuas-1 were nonpathogenic for suckling mice and suckling rats inoculated either intracerebrally or intraperitoneally. s. culicicola persisted as long as 14 days in the brain of intracerebrally inoculated mice but did not replicate. the three other spiroplasmas were not reisolated from inoculated rats or mice. s. culicicola replicated in vitro at 37 degrees c in m1d media ... | 1994 | 7906284 |
| comparison of metabolic capacities and inference of gene content evolution in mosquito-associated spiroplasma diminutum and s. taiwanense. | mosquitoes are hosts of several spiroplasma species that belong to different serogroups. to investigate the genetic mechanisms that may be involved in the utilization of similar hosts in these phylogenetically distinct bacteria, we determined the complete genome sequences of spiroplasma diminutum and s. taiwanense for comparative analysis. the genome alignment indicates that their chromosomal organization is highly conserved, which is in sharp contrast to the elevated genome instabilities observ ... | 0 | 23873917 |
| horizontal acquisition and transcriptional integration of novel genes in mosquito-associated spiroplasma. | genetic differentiation among symbiotic bacteria is important in shaping biodiversity. the genus spiroplasma contains species occupying diverse niches and is a model system for symbiont evolution. previous studies have established that two mosquito-associated species have diverged extensively in their carbohydrate metabolism genes despite having a close phylogenetic relationship. notably, although the commensal spiroplasma diminutum lacks identifiable pathogenicity factors, the pathogenic spirop ... | 2017 | 29177479 |