In a northwestern Connecticut forest, we quantified the carbon (C) and nitrogen (N) content of the forest floor and the top 15 cm of mineral soil and the rate of midsummer net N mineralization beneath six different tree species. There were large interspecific differences in forest floor depth and mass, in the size and distribution of C and N pools at varying soil depths, and in rates of midsumm...

The BT4131 gene from the bacterium Bacteroides thetaiotaomicron VPI-5482 has been cloned and overexpressed in Escherichia coli. The protein, a member of the haloalkanoate dehalogenase superfamily (subfamily IIB), was purified to homogeneity, and its X-ray crystal structure was determined to1.9 A resolution using the molecular replacement phasing method. BT4131 was shown by an extensive substrat...

BACKGROUND The aim of this study was to assess physical properties of dietetic chocolate milk produced by stevia as a sugar replacer and inulin. Along with having prebiotic effect, inulin can also participate in enhancing textural properties of beverages. Therefore, this novel food will be useful for all people especially for diabetics. METHODS This study was carried out in Quality Control La...

The structural basis of carbohydrate recognition by rat liver mannose-binding protein (MBP-C) has been explored by determining the three-dimensional structure of the C-type carbohydrate-recognition domain (CRD) of MBP-C using x-ray crystallography. The structure was solved by molecular replacement using rat serum mannose-binding protein (MBP-A) as a search model and was refined to maximum Bragg...

Anthracyclines are widely used in patients for anticancer activity. However, one of the limitations for their clinical use is P-gp-mediated drug resistance in cancer therapy. We hypothesize that modified anthracyclines will retain their anticancer activity, avert P-gp binding, and thus overcome P-gp-mediated drug resistance. Twenty-five daunorubicin analogues were synthesized with slight struct...

Selection cutting is a treatment that emulates tree-by-tree replacement for forests with uneven-age structures. It creates small openings in large areas and often generates a more homogenous forest structure (fewer large leaving trees and defective trees) that differs from old-growth forest. In this study, we evaluated whether this type of harvesting has an impact on genetic diversity of sugar ...

Plant-animal interactions are strong drivers of phenotypic evolution. However, the extent to which anthropogenic habitat transformation creates new selective scenarios for plant-animal interactions is a little explored subject. We examined the effects of native forest replacement by exotic Eucalyptus trees on the frugivore-mediated phenotypic selection coefficients imposed by the relict marsupi...

The evidence of the literature indicates that the adrenal cortex produces a variety of hormones, some of which, like desoxycorticosterone, act predominantly to maintain a normal water and electrolyte balance (1), while others, like corticosterone, are effective chiefly through preventing hypoglycemia, either by facilitating the formation of sugar from protein (gluconeogenesis) (2) or by inhibit...