A population of Spermophilus beecheyi was studied to determine
patterns of individual spacing, behavioral interactions among different
sex and age classes, and the relationship between aspects of S. beecheyi
social structure and sociality to those of other sciurids. Research was
conducted on a population of squirrels living in an abandoned...
A strain of the phytopathogenic bacterium Pseudomonas syringae
pv. phaseolicola, a pathogen of common bean Phaseolus vulgaris,
harbors a 150 kilobase pair (kb) plasmid pMC7105. In one strain,
LR719, pMC7105 is stably integrated in the bacterial chromosome.
Imprecise excision of the pMC7105 replicon has been shown to result
in the...
Conditions were established for inducing pear blossom blast
caused by Pseudomonas syringae (Ps) on both attached and detached
shoots. The incidence of disease was proportional to the log of Ps
population under optimal temperature, moisture and bloom developmental
stage. Highest incidence of infection followed occurrence of a major
exotherm in...
A characterization of the antigenic determinants (epitopes) of the glycoprotein (G) of infectious hematopoietic necrosis virus (IHNV) was made with different regions of the G gene expressed in Escherichia coli. A cDNA copy of the G gene was divided into four fragments after Taq I digestion and these fragments were...
Dormancy of 'Pinot Noir' grapevines was characterized. Primary buds
required ca 300 cumulative chilling hours (CCH) to initiate the transition from
endodormancy to ecodormancy, which occurred in mid November. Additional
chilling, up to 1000 CCH, improved budbreak. Changes in bud water content
were estimated by gravimetric and spectroscopic methods. Total,...