Search Results - (Author, Cooperation:S. Monfort)
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1S. M. Durant ; N. Pettorelli ; S. Bashir ; R. Woodroffe ; T. Wacher ; P. De Ornellas ; C. Ransom ; T. Abaigar ; M. Abdelgadir ; H. El Alqamy ; M. Beddiaf ; F. Belbachir ; A. Belbachir-Bazi ; A. A. Berbash ; R. Beudels-Jamar ; L. Boitani ; C. Breitenmoser ; M. Cano ; P. Chardonnet ; B. Collen ; W. A. Cornforth ; F. Cuzin ; P. Gerngross ; B. Haddane ; M. Hadjeloum ; A. Jacobson ; A. Jebali ; F. Lamarque ; D. Mallon ; K. Minkowski ; S. Monfort ; B. Ndoassal ; J. Newby ; B. E. Ngakoutou ; B. Niagate ; G. Purchase ; S. Samaila ; A. K. Samna ; C. Sillero-Zubiri ; A. E. Soultan ; M. R. Stanley Price ; J. E. Baillie
American Association for the Advancement of Science (AAAS)
Published 2012Staff ViewPublication Date: 2012-06-16Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: *Biodiversity ; Conservation of Natural Resources ; *Desert Climate ; *Ecosystem ; TreesPublished by: -
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ISSN: 1573-5044Keywords: budding ; isoelectrofocusing ; PhastSystem ; Phoenix dactylifera L.Source: Springer Online Journal Archives 1860-2000Topics: BiologyNotes: Abstract In natural conditions, a cyclic growth of the apical meristem of the date palm is observed. This type of growth is also encountered in the behavior of vegetative shoots in in vitro culture, a growth stage succeeding a budding stage. Peroxidase activity is related to a cyclic budding phenomenon, where maximum enzyme activity and also a modification of isoperoxidase content are noted at the same time as the formation of buds.Type of Medium: Electronic ResourceURL: -
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ISSN: 0148-7280Keywords: gonadotropin source ; in vitro embryo development ; embryo cryopreservation ; genotype ; mouse ; Life and Medical Sciences ; Cell & Developmental BiologySource: Wiley InterScience Backfile Collection 1832-2000Topics: BiologyNotes: The influence of the source of pregnant mares' serum gonadotropin (PMSG) on the num ber, quality, and in vitro development of mouse embryos before and after freezing was evaluated among three genotypes: N:NIH(S), C57BL/6N, and C3H/HeN-MTV-. Immature females were given PMSG from one of five commercial sources. Following col lection ( 116 hr later), embryos were evaluated for stage of development, and four-to eight-cell embryos were pooled within genotype and assigned to standardized fresh or freeze-thaw culture trials. Different PMSG sources stimulated the production of different num bers of total embryos (P 〈 0.05) but not necessarily more embryos suitable for freezing. Differences in embryo production among genotypes indicated that absolute embryo num bers using a single mouse genotype may not accurately reflect the potency of a specific gonadotropin source. The PMSG source also affected the ability of an embryo to survive in culture either immediately after collection or after frozen storage. The effect, however, was genotype specific, with some mouse strains being relatively insensitive to PMSG source, whereas gonadotropin source played a major role in determining in vitro viability in others. Development rates for freshly collected embryos differed, often inconsistently, from those of thawed embryos regardless of the PMSG source used, demonstrating that fresh embryo development cannot be used to estimate expected post-thaw survival. In vitro development of thawed embryos is influenced not only by genotype, but also the source of the gonadotropin used to promote follicular development and oocyte maturation. These findings may explain, in part, the wide variation in embryo viability and culture rates reported among laboratories and intraspecies animal populations.Additional Material: 6 Tab.Type of Medium: Electronic ResourceURL: