| phylogeny based on 16s rdna and nifh sequences of ralstonia taiwanensis strains isolated from nitrogen-fixing nodules of mimosa pudica, in india. | bacterial symbionts present in the indeterminate-type nitrogen (n)-fixing nodules of mimosa pudica grown in north and south india showed maximum similarity to ralstonia taiwanensis on the basis of carbon-source utilization patterns and 16s rdna sequence. isolates from the nodules of m. pudica from north india and south india showed identical ardra (amplified ribosomal dna restriction analysis) patterns with sau3ai and rsai, but alui revealed dimorphy between the north indian and south indian iso ... | 2004 | 15213739 |
| beta-rhizobia from mimosa pigra, a newly discovered invasive plant in taiwan. | a total of 191 rhizobial isolates from the root nodules of three geographically separate populations of the invasive plant mimosa pigra in taiwan were examined using amplified rdna restriction analysis, 16s rdna sequences, protein profiles and elisa. of these, 96% were identified as burkholderia and 4% as cupriavidus taiwanensis. the symbiosis-essential genes noda and nifh were present in two strains of burkholderia (pas44 and ptk47), and in one of c. taiwanensis (pas15). all three could nodulat ... | 2005 | 16313648 |
| burkholderia spp. are the most competitive symbionts of mimosa, particularly under n-limited conditions. | bacteria isolated from mimosa nodules in taiwan, papua new guinea, mexico and puerto rico were identified as belonging to either the alpha- or beta-proteobacteria. the beta-proteobacterial burkholderia and cupriavidus strains formed effective symbioses with the common invasive species mimosa diplotricha, m. pigra and m. pudica, but the alpha-proteobacterial rhizobium etli and r. tropici strains produced a range of symbiotic phenotypes from no nodulation through ineffective to effective nodulatio ... | 2009 | 19040456 |
| 5-deoxyflavones with cytotoxic activity from mimosa diplotricha. | bioassay-guided isolation of mimosa diplotricha led to the isolation of four new 5-deoxyflavones, diplotrins a-c (1-3) and diplotasin (4), together with 12 known flavonoids, flavonolignans, and triterpenoids. on the basis of spectroscopic evidence, compounds 1-4 were characterized as 2',5'-dihydroxy-3,7,8,4'-tetramethoxyflavone (1), 3'-hydroxy-3,7,8,4'-tetramethoxyflavone (2), 2'-hydroxy-7,4',5'-trimethoxyflavone (3), and 4-hydroxy-3,10,11-trimethoxyisochromeno-[4,3-b]-chromen-7(5h)-one (4). the ... | 2011 | 21875046 |