Search Results - (Author, Cooperation:G. J. Young)
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1Latest Papers from Table of Contents or Articles in PressD. W. Rice ; A. J. Alverson ; A. O. Richardson ; G. J. Young ; M. V. Sanchez-Puerta ; J. Munzinger ; K. Barry ; J. L. Boore ; Y. Zhang ; C. W. dePamphilis ; E. B. Knox ; J. D. Palmer
American Association for the Advancement of Science (AAAS)
Published 2013Staff ViewPublication Date: 2013-12-21Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Base Sequence ; Bryophyta/classification/genetics ; Chlorophyta/classification/genetics ; DNA, Mitochondrial/*genetics ; *Gene Transfer, Horizontal ; *Genome, Plant ; Membrane Fusion ; *Mitochondrial Dynamics ; Molecular Sequence Data ; Phylogeny ; Tracheobionta/classification/*geneticsPublished by: -
2Articles: DFG German National LicensesStaff View
ISSN: 1432-0703Source: Springer Online Journal Archives 1860-2000Topics: Energy, Environment Protection, Nuclear Power EngineeringMedicineNotes: Abstract Contamination levels of zinc, cadmium, mercury, copper, lead, and manganese of the major streams in the Holston River Basin in Eastern Tennessee are reported and compared with other waterways. Heavy metal levels are sufficiently high in areas of the Basin to affect the health of aquatic life. The levels of cadmium, copper, manganese, lead and zinc were measured in fish samples from each lake and stream in the Basin and compared to those reported for fish throughout the world. The use of fish to monitor the levels of heavy metals is discussed as an alternative to grab samples of water; mercury levels in fish muscle reflected pollution of a stream, whereas grab samples of water did not.Type of Medium: Electronic ResourceURL: -
3Articles: DFG German National LicensesStaff View
ISSN: 0362-2525Keywords: Life and Medical Sciences ; Cell & Developmental BiologySource: Wiley InterScience Backfile Collection 1832-2000Topics: BiologyMedicineNotes: Cleavage in the brown marsupial mouse, Antechinus stuartii, from the zygote to the unilaminar blastocyst, was observed in vivo and in culture and in sections of embryos. The first three divisions were meridional and passed from the yolk pole to the opposite pole. Deutoplasmolysis, resulting in a distinct yolk mass, occurred during the first two divisions. Prior to the third and fourth divisions, the blastomeres elongated and flattened against the zona pellucida. The fourth division was latitudinal and resulted in two histologically distinct rings of eight blastomeres which were at first rounded and then became flattened against the zona. Further divisions and flattening of the blastomeres resulted in a complete unilaminar blastocyst by the time the blastocyst numbered 22 to 30 cells. Some expansion, causing compression of the zona and mucoid layers, occurred before completion of the blastocyst, but most expansion occurred once the blastocyst was complete. No histological differences could be detected between the blastomeres at this stage. Embryos were successfully cultured from the zygote to the rounded four-cell stage and from the flattened four-cell stage to the completed unilaminar blastocyst of around 32 cells. Total estimated cleavage times were slower in culture than in vivo, but the relative lengths of time for each division were approximately the same.Additional Material: 29 Ill.Type of Medium: Electronic ResourceURL: