| biodegradation of cyclic nitramines by tropical marine sediment bacteria. | undersea deposition of unexploded ordnance (uxo) constitutes a potential source of contamination of marine environments by hexahydro-1,3,5-trinitro-1,3,5-triazine (rdx) and octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (hmx). the goal of the present study was to determine microbial degradation of rdx and hmx in a tropical marine sediment sampled from a coastal uxo field in the region of oahu island in hawaii. sediment mixed cultures growing in marine broth 2216 (21 degrees c) anaerobically mi ... | 2005 | 15915354 |
| abundance and diversity of octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (hmx)-metabolizing bacteria in uxo-contaminated marine sediments. | octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (hmx) is a toxic explosive known to be resistant to biodegradation. in this study, we found that sediment collected from two unexploded ordnance (uxo) disposal sites (uxo-3, uxo-5) and one nearby reference site (midref) in hawaii contained anaerobic bacteria capable of removing hmx. two groups of hmx-removing bacteria were found in uxo-5: group i contained aerotolerant anaerobes and microaerophiles, and group ii contained facultative anaerobes. in ... | 2007 | 17381523 |