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The cell wall of the biflagellate alga Chlamydomonas reinhardtii is a multilayered, extracellular matrix composed of carbohydrates and 20-25 polypeptides. To learn more about the forces responsible for the integrity of this cellulose-deficient cell wall, we have begun studies to identify and characterize the framework of the wall and to determine the(More)
Eight patients (9 fractures) who have been treated with Dall-Miles plating in this unit between April 1996 and October 1997 for ipsilateral periprosthetic fractures around total hip replacement (7 cases) and total knee replacement (2 cases) have been reviewed. Four were men, and 4 were women. The average age at the time of operation was 77 years (range,(More)
A flagellar adhesion-induced signal sent during the mating reaction of the biflagellate alga, Chlamydomonas reinhardtii, initiates release of cell-wall-degrading enzymes, activation of mating structures, and cell fusion. The nature of this signal is unknown, but it may be mediated by an adhesion-induced change (activation) of flagellar tips. The studies(More)
New methods have been developed for the purification and characterization of the cell wall degrading enzyme, lysin, which is released into the medium during the mating reaction of the biflagellated alga Chlamydomonas reinhardtii. A quantitative spectrophotometric assay that detects the number of cells losing walls was used to devise a procedure for the(More)
During fertilization in the biflagellated alga, Chlamydomonas reinhardtii, gametes of opposite mating types adhere to each other via agglutinin molecules located on their flagellar surfaces, generating a sexual signal that induces several cellular responses including cell wall release. This cell contact-generated signal is mediated by cAMP and release of(More)
During the mating reaction in Chlamydomonas reinhardtii mating type plus and mating type minus gametes adhere to each other via adhesion molecules on their flagellar surfaces. This adhesive interaction induces a sexual signal leading to release of a cell wall degrading enzyme, lysin, that causes wall release and degradation. In this article, we describe the(More)
OBJECTIVES The purpose of this study was to identify (1) core journals in the literature of physical therapy, (2) currency of references cited in that literature, and (3) online databases providing the highest coverage rate of core journals. METHOD Data for each cited reference in each article of four source journals for three years were recorded,(More)
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