Topic
Microbacterium
About: Microbacterium is a research topic. Over the lifetime, 741 publications have been published within this topic receiving 17180 citations.
Papers published on a yearly basis
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Papers
TL;DR: This study defines for the first time the endophytic nature of Microbacterium testaceum, which may be useful for biocontrol and other applications.
Abstract: Endophytic bacteria reside within plant hosts without causing disease symptoms. In this study, 853 endophytic strains were isolated from aerial tissues of four agronomic crop species and 27 prairie plant species. We determined several phenotypic properties and found approximately equal numbers of gram-negative and gram-positive isolates. In a greenhouse study, 28 of 86 prairie plant endophytes were found to colonize their original hosts at 42 days postinoculation at levels of 3.5 to 7.7 log(10) CFU/g (fresh weight). More comprehensive colonization studies were conducted with 373 corn and sorghum endophytes. In growth room studies, none of the isolates displayed pathogenicity, and 69 of the strains were recovered from corn or sorghum seedlings at levels of 8.3 log(10) CFU/plant or higher. Host range greenhouse studies demonstrated that 26 of 29 endophytes were recoverable from at least one host other than corn and sorghum at levels of up to 5.8 log(10) CFU/g (fresh weight). Long-range dent corn greenhouse studies and field trials with 17 wild-type strains and 14 antibiotic-resistant mutants demonstrated bacterial persistence at significant average colonization levels ranging between 3.4 and 6.1 log(10) CFU/g (fresh weight) up to 78 days postinoculation. Three prairie and three agronomic endophytes exhibiting the most promising levels of colonization and an ability to persist were identified as Cellulomonas, Clavibacter, Curtobacterium, and Microbacterium isolates by 16S rRNA gene sequence, fatty acid, and carbon source utilization analyses. This study defines for the first time the endophytic nature of Microbacterium testaceum. These microorganisms may be useful for biocontrol and other applications.
655 citations
TL;DR: The results strongly suggest that the endophytic diazotrophic bacteria characterized in this study could be successfully used to promote plant growth and inducing fungal resistance in plants.
394 citations
TL;DR: A Gram-positive, hexavalent chromium-tolerant bacterium, isolated from tannery waste from Pakistan, was identified as a Microbacterium sp.
Abstract: A Gram-positive, hexavalent chromium [chromate: Cr(VI)]-tolerant bacterium, isolated from tannery waste from Pakistan, was identified as a Microbacterium sp by 16S rRNA gene sequence homology The strain (designated as MP30) reduced toxic Cr(VI) only under anaerobic conditions at the expense of acetate as the electron donor The bacterium was able to grow aerobically in L-broth supplemented with 15 mM CrO42– but then did not reduce Cr(VI) At a concentration of 24×109 cells/ml, 100 µM sodium chromate was reduced within 30 h; however, the maximum specific reduction rate was obtained at lower initial cell concentrations
254 citations
TL;DR: Bacterial and fungal isolates from the consortium, when inoculated separately to the soil, were less effective in anthracene mineralization compared to the consortium and signifies synergistic promotion of PAHs mineralization by mixtures of the monoculture isolates.
249 citations
TL;DR: The DNA base composition (GC content) of 114 strains belonging to the so-called coryneform bacteria was examined and a new method for the isolation of DNA from lysozyme-insensitive or poorly sensitive strains was described.
Abstract: The DNA base composition (GC content) of 114 strains belonging to the so-called coryneform bacteria was examined from the viewpoint of bacterial taxonomy. The GC content of these bacteria ranged widely from 46 to 78%. Although the GC content of Cellulomonas fell into a relatively narrow range near 72%, those of Corynebacterium, Arthrobacter, Microbacterium, and Brevibacterium did not exhibit the specific range to characterize the genus. This fact probably shows that the genera of coryneform bacteria, except Cellulomonas, are taxonomically heterogeneous. A new method for the isolation of DNA from lysozyme-insensitive or poorly sensitive strains was described.
239 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2026 | 1 |
| 2025 | 16 |
| 2024 | 47 |
| 2023 | 46 |
| 2022 | 92 |
| 2021 | 48 |