Search Results - (Author, Cooperation:S. Monfort)

Showing 1 - 3 results of 3, query time: 0.11s Refine Results
  1. 1
    Staff View
    Publication Date:
    2012-06-16
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    *Biodiversity ; Conservation of Natural Resources ; *Desert Climate ; *Ecosystem ; Trees
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Booij, I. ; Monfort, S. ; Macheix, J. J.
    Springer
    Published 1993
    Staff View
    ISSN:
    1573-5044
    Keywords:
    budding ; isoelectrofocusing ; PhastSystem ; Phoenix dactylifera L.
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Notes:
    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 Resource
    URL:
    Articles: DFG German National Licenses
  3. 3
    Schmidt, P. M. ; Monfort, S. L. ; Wildt, D. E.

    New York, NY : Wiley-Blackwell
    Published 1989
    Staff View
    ISSN:
    0148-7280
    Keywords:
    gonadotropin source ; in vitro embryo development ; embryo cryopreservation ; genotype ; mouse ; Life and Medical Sciences ; Cell & Developmental Biology
    Source:
    Wiley InterScience Backfile Collection 1832-2000
    Topics:
    Biology
    Notes:
    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 Resource
    URL:
    Articles: DFG German National Licenses