Cellular molecular chaperones, which are ubiquitous, stress-induced proteins, and newly found chemical and pharmacological chaperones have been found to be effective in preventing misfolding of different disease-causing proteins, essentially reducing the severity of several neurodegenerative disorders and many other protein-misfolding diseases.
Pteridophtyes are a phylum of plants. They are the vascular plants (those having xylem and phloem tissues) that reproduce by releasing spores rather than seeds, and they include the highly diverse true ferns and other graceful, primarily forest-dwelling plants.ern leaves used in floral arrangements are a major industry in Florida, and in some cultures tree fern stems are used to make elegant, naturally sculpted bowls. The contrasting colors of the vascular tissue in the stems and leaf bases of these plants create complex and pleasing designs.
Return to phylum directory. The phylum Pterophyta is a group of non-seed plants with a fossil record dating back to the lower Devonian.The phylum consists of about 11,000 living species. Vegetatatively ,the Pterophyta are a diverse group of plants with true leaves, roots and stems.Leaves are macrophylls and, in many families, demonstrate circinate vernation (a pattern of uncoiling of a crozier-like structure due to uneven growth).eturn to phylum directory. The phylum Pterophyta is a group of non-seed plants with a fossil record dating back to the lower Devonian. The phylum consists of about 11,000 living species.