Recently Published Papers

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Piper, K. R., Beck von Bodman, S., and Farrand, S.K.
Conjugation factor of Agrobacterium tumefaciens regulates Ti plasmid transfer by autoduction.
Nature (London) 362:448-450, 1993.

Hayman, G. T., Beck von Bodman, S., Kim, H., Jiang, P., and Farrand, S. K.
Gentic analysis of the agrocimpine catoblic region of Agrobacterium Tumefaciens Ti plasmid pTiC58, which encodes genes repuired for opine and agrocin 84 transport.
J. Bacteriol. 175:5575-5584,1993.

Hwang, I., Li., P.-L., Zhang, L., Piper, K., Cook, D. M., Tate, M. E., and Farrand, S. K.
TraI, a LuxI homologue, is responsible for production of conjugation fa ctor, the Ti plasmid N-acul-homoserine lactone autoinducer.
Proc. Natl. Acad. Sci (USA) 91:4639-4643, 1994.

Hong, S.-B., and Farrand, S. K.
Fuctional role of the Ti plasmid-encoded catabolic mannopine cyclase in mannityl opine catabolism by Agrobacterium.
J. Bacteriol. 176:3576-3583, 1994.

Hwang, I., Cook, D. M., and Farrand, S. K.
A new element modulates homoserine lactone-mediated autoinduction of Ti plasmid conjugal transfer.
J. Bacteriol. 177:449-458, 1995.

Beck von Bodman, S., and Farrand, S. K.
Capsular polysccharide biosynthesis and pathogenicity on Erwinia stewartii require induction by an N-acylh omoserine lactone autoinducer.
J. Bacteriol, 177:5000-5008, 1995

Hong, S.-B. and Farrand, S. K.
Purifiction and characterization of the catabolic mannopine cyclase encoded by the octopine-type Ti plasmid pTi15955.
J. Bact eriol 178:2427-2430, 1996

Kim, K.-S. and Farrand, S. K.
Ti plasmid encoded genes responsible for catabolism of the crown gall opine mannopine by Agrobacterium tumefaciens are homo logs of the T-region genes responsible for synthesis of the opine by the plant tumor.
J. Bacteriol. 178:3275-3284, 1996.

Kim, K.-S., Chilton, W. S., and Farrand, S. K.
A Ti plasmid-encoded enzyme requited for degradation of mannopine is functionally homologous to the T-region-enco ded enzyme requited for synthesis of thes opine in crown gall tumors.
J. Bacteriol. 178:3285-3292, 1996.

Farrand, S. K., Hwang, I, and Cook, D. M.
The tra region of the nopaline-type Ti plasmid is a chimeric with elements related to the transfer systems of R SF1010, RP4 and F.
J. Bacteriol. 178:4233-4247, 1996.

Alt-Morbe, J., Stryker, J. L., Fuqua, C., Farrand, S. K., and Winans, S. C.
The conjugal transfer system of A. tumefaciens octopine-type Ti plasmids is c losely related to the transfer system of an IncP plasmid and distantly related to Ti plasmid vir genes.
J. Bacteriol. 178:4248-4257, 1996.

Hwang, I., and Farrand, S. K.
Detection and enumeration of a tagged Pseudomonas fluorescens strain from soil using markers associated with an engineered catabolic pathway.
Appl. Environ. Microbiol. 63:602-608, 1997.

Cook, D. M., Li, P.-L., Ruchaud, F., Padden, S., and Farrand, S. K.
Ti plasmid conjugation is independent of vir: Reconstitution of the tra functi ons from pTic58 as a binary system.
J. Bacteriol. 179:1291-1297, 1997.

Shaw, P. D., Ping, G., Daly, S. L., Cha, C., Cronan, Jr., J, E., Rinehart, K. L., and Farrand, S. K.
Detecting and characterizationg N-acyl-homoserine la ctone signal molecules by thin-layer chromatography.
Proc. Natl. Acad. Sci. (USA) 94:6036-6041, 1997.

Hong, S.-B., Hawang, I., Dessaux, Y., Guyon, P., Kim, K.-S., and Farrand, S. K.
A T-DNA gene required for agropine biosyntheswis by transformed plants is functio nally and evolutionarily related to a Ti plasmid gene required for catabolism of agropine by Agrobacterium.
J. Bacteriol. 179:4831-4840, 1997.

Kim, H., and Farrand, S. K.
Characterization of the acc operon from the nopaline-type Ti plasmid pTiC58 of Agrobacterium tumefaciens strain C58 wh ich encodes utilization of agrocinopines A+B and susceptibility to agrocin 84.
J. Bacteriol. 179:7559-7572, 1997.

Kim, H., and Farrand, S. K.
Opine catabolic loci from Agrobacterium plasmids confer chemotaxis to their cognate substrates.
Mol. Plant-Microbe Inter act.11:131-143, 1998.

Oger, P., Kim, S.-S., Sackett, R. L., Piper, K. R., and Farrand, S. K.
Octopine-type Ti plasmids code for a mannopine-inducible dominant-negative allele of traR, the quorum-sensing activator that regulated Ti plasmid conjugal transfer.
Mo lec. Microbiol. 27:277-288, 1998.