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G Deatherage

Publications and source records attributed to G Deatherage.

4 recordsLinked to original sources

The genome of the natural genetic engineer Agrobacterium tumefaciens C58.

The 5.67-megabase genome of the plant pathogen Agrobacterium tumefaciens C58 consists of a circular chromosome, a linear chromosome, and two plasmids. Extensive orthology and nucleotide colinearity between the genomes of A. tumefaciens and the plant symbiont Sinorhizobium meliloti suggest a recent evolutionary divergence. Their similarities include metabolic, transport, and regulatory systems that promote survival in the highly competitive rhizosphere; differences are apparent in their genome structure and virulence gene complement. Availability of the A. tumefaciens sequence will facilitate investigations into the molecular basis of pathogenesis and the evolutionary divergence of pathogenic and symbiotic lifestyles.

Agrobacterium tumefaciens↗

Surgery in the aged.

The ageing process has changed little since the days of the psalmist. The number of elderly patients, however, is increasing. Old people seem more reluctant to undergo surgery than younger patients and more concerned with quality of life. The authors conducted a survey in a small community in British Columbia to determine the attitudes of old people towards surgery. The survey confirmed that they are reluctant to undergo surgery if there is an appreciable risk that they will be physically or mentally impaired afterwards. A substantial number also do not wish to undergo complicated procedures to prolong their lives. Quality of life and conservatism should be important considerations in the surgical management of elderly patients.

Aged↗