Witryna5 paź 2015 · On the other hand, current molecular approaches have actually stimulated the revival of two of the old proposals: first that the notochord is a novelty that arose … Witryna31 paź 2013 · Limnothrix (strain AC0243) is a cyanobacterium, which has only recently been identified as toxin producing. Under laboratory conditions, Bufo marinus larvae were exposed to 100,000 cells mL−1 of Limnothrix (strain AC0243) live cultures for seven days. Histological examinations were conducted post mortem and revealed damage …
Structure and function of the notochord: an essential organ for ...
WitrynaThe notochord is a long, rodlike structure that develops dorsal to the gut and ventral to the neural tube. The notochord is composed primarily of a core of glycoproteins, encased in a sheath of collagen fibers wound … Witryna14 kwi 2024 · The notochord is the central structural element in the AP axis of all chordates and in vertebrates it serves as scaffold for the spine. In the developing vertebrate embryo, the notochord acts as a hydrostatic skeleton (Adams et al., 1990) and is important in the patterning of several tissues including the somites, blood … kids play washer and dryer set
Lasanius, an exceptionally preserved Silurian jawless fish from ...
Witryna15 sie 1998 · The notochord is one of the characteristic features of the phylum Chordata. The vertebrate Brachyury gene is known to be essential for the terminal … Witryna1 cze 2005 · In this role, the notochord is important for specifying ventral fates in the central nervous system,controlling aspects of LR asymmetry, inducing pancreatic … The notochord secretes a protein called sonic hedgehog (SHH), a key morphogen regulating organogenesis and having a critical role in signaling the development of motor neurons. The secretion of SHH by the notochord establishes the ventral pole of the dorsal-ventral axis in the developing embryo. Zobacz więcej In anatomy, the notochord is a flexible rod which is similar in structure to the stiffer cartilage. If a species has a notochord at any stage of its life cycle (along with 4 other features), it is, by definition, a chordate. The notochord … Zobacz więcej The notochord plays a key role in signaling and coordinating development. Embryos of modern vertebrates form transient notochord structures during gastrulation. The notochord … Zobacz więcej The notochord is the defining feature (synapomorphy) of chordates, and was present throughout life in many of the earliest … Zobacz więcej The notochord is a long, rodlike structure that develops dorsal to the gut and ventral to the neural tube. The notochord is composed … Zobacz więcej Research into the notochord has played a key role in understanding the development of the central nervous system. By transplanting and expressing a second notochord near … Zobacz więcej • Surface view of embryo of Concolor gibbon (Hylobates concolor). • Diagram of a transverse section, showing the mode of formation of the amnion in the chick. • Section through the head of a human embryo, about twelve days old, in the region of the … Zobacz więcej kids play watch toy