منابع مشابه
Balancing Thymocyte Adhesion and Motility: A Functional Linkage Between β1 Lntegrins and The Motility Receptor RHAMM
Thymocyte differentiation involves several processes that occur in different anatomic sites within the thymus. Therefore, thymocytes must have the ability to respond to signals received from stromal cells and adopt either adhesive or motile behavior. We will discuss our data indicating human thymocytes use alpha4beta1 integrin, alpha5beta1 integrin and RHAMM to mediate these activities. Immatur...
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At about the 20-30 day of embryonic life "Somites" start to appear. In the middle of the fourth week the dorsal portion of each Somite differentiates into an epitheliallyarranged mass of cells called dermomyotome (from which the skin and muscles originate). The lateral part of the sermomyotome then proliferates to form dermatome (from ·which originates the derm and Hypoderm). The medial ...
متن کاملMorphogenesis
in our understanding of how feather buds develop in The exquisitely beautiful form of a developing embryo periodic patterns in the ectoderm of the chick embryo is the result of a coordination between the driving forces (Crowe et al., 1998; Jung et al., 1998; Noramly and Morof morphogenesis and the processes of cell growth, gan, 1998; Viallet et al., 1998). The insights that have proliferation, ...
متن کاملCell Biology and Morphogenesis
Somatic embryos of Arabidopsis thaliana can be produced from explants of developing zygotic embryos. Cultivation of explants on maturation medium results in development of three main classes of regenerative structures: adventitious shoots, fused shoots, and complete somatic embryos. The ontogeny and anatomy of these structures was examined using serial plastic sections. Furthermore, two molecul...
متن کاملCell Biology and Morphogenesis
An efficient in vitro protocol for plant production of North American ginseng has been established. The pretreatment of cotyledon explants with 1.0 M sucrose at 4◦C resulted in an improvement of embryo quality and, combined with a higher sucrose content (7%) in induction medium, improved the embryogenesis frequency from 40% to 75% and the number of embryos per explant from 10 to 21. The frequen...
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ژورنال
عنوان ژورنال: Development
سال: 1993
ISSN: 1477-9129,0950-1991
DOI: 10.1242/dev.119.supplement.177