| DIPI | defective interfering particle induction |
|---|---|
| DLV | defective leukemia virus |
| L-variant | a defective bacterial variant that can multiply on hypertonic medium |
| L-[form] | a defective bacterial variant that can multiply on hypertonic medium |
| VDI | virus defective interfering [particle] |
| defective probacteriophage | See: defective bacteriophage. (05 Mar 2000) |
|---|---|
| defective prophage | A temperate bacteriophage mutant whose genome does not contain all of the normal components and cannot become fully infectious virus, yet can replicate indefinitely in the bacterial genome as defective probacteriophage; many defective bacteriophage's are mediators of transduction. Synonym: defective phage. (05 Mar 2000) |
| defective virus | <virology> A virus genetically deficient in replication, but that may nevertheless be replicated when it co-infects a host cell in the presence of a wild type helper virus. most acute transforming retroviruses are defective, since their acquisition of oncogenes seems to be accompanied by deletion of essential viral genetic information. (18 Nov 1997) |
| defective viruses | Viruses which lack a complete genome so that they cannot completely replicate or cannot form a protein coat. Some are host-dependent defectives, meaning they can replicate only in cell systems which provide the particular genetic function which they lack. Others, called satellite viruses, are able to replicate only when their genetic defect is complemented by a helper virus. (12 Dec 1998) |