SILVESTER, W. B., WHITBECK, J . , SILVESTER, J. K., and TORREY, J. G. 1988. Growth, nodule morphology, and nitrogenase activity of Myrica gale with roots grown at various oxygen levels. Can. J . Bot. 66: 17621771. Myrica gale L. plants were inoculated with Frankia strain HFP M'gI5 and grown for 28 days with root systems exposed to 2, 5, 10, 21, and 40 kPa 0,. Plant growth was similar under all ...

Insertion of the insertion sequence Is2(I) directly before the galE gene of the galactose operon results in a Gal minus phenotype (1, 2). The Gal-constitutive allele galc200 (and its deletion derivative galc200 delta 31) arise from such a Gal minus mutant by the insertion of LS2(II) DNA within the LS2(I) sequence (3). We have transcribed in vitro a DNA template representing the IS2-galE region ...

In a recent paper, Gale and Church describe an inexpensive method for aligning bitext, based exclusively on sentence lengths [Gale and Church, 1991]. While this method produces surprisingly good results (a success rate around 96%), even better results are required to perform such tasks as the computer-assisted revision of translations. In this paper, we examine some of the weaknesses of Gale an...

THE stable matching problem was introduced by Gale and Shapley as a model of how to assign students to colleges. It is a classic that has inspired a flood of papers exploring generalizations, variations and applications. For a comprehensive account of these, see Roth and Sotomayor as well as Roth. A stable matching is a matching in a bipartite graph that satisfies additional conditions. Just as...

Frankia sp., the actinomycetous endophyte in nitrogen-fixing actinorhizal nodules, may differentiate two forms from its hyphae: vesicles and sporangia. In root nodules of Comptonia peregrina (L.) Coult. and Myrica gale L., sporangia may be either absent or present. Nitrogenase activity and symbiotic efficiency were contrasted in spore(+) and spore(-) nodules of these two host genera. Seedlings ...

Epimerase deficiency galactosemia is an autosomal recessive condition resulting from the impairment of UDP-galactose 4'-epimerase (hGALE). Although a small number of clinically severe patients have been reported who exhibit "generalized" GALE deficiency, the vast majority exhibit an apparently benign "peripheral" form of the disorder in which enzyme impairment is restricted to the circulating r...