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821.
Maurice Blanc 《Hydrobiologia》1952,4(4):341-362
Sans résumé
En ce qui concerne l'année 1950, seuls les travaux publiés au début de l'année sont mentionnés dans cet article qui a été rédigé en août 1950. 相似文献
En ce qui concerne l'année 1950, seuls les travaux publiés au début de l'année sont mentionnés dans cet article qui a été rédigé en août 1950. 相似文献
822.
Nathalie Signoret Pascal Poignard Dominique Blanc Quentin J. Sattentau 《Trends in microbiology》1993,1(9):328-333
The major cellular receptor for the primate immunodeficiency viruses is the CD4 molecule. As well as mediating virion attachment to the cell surface, CD4 is thought to activate the viral fusion pathway. CD4 is not, however, sufficient for viral entry; other molecules are probably involved, and in certain circumstances these may substitute for CD4. Viral tropism and cytopathogenicity are also influenced by receptor interactions. 相似文献
823.
This paper reports the effects of X-irradiation on ovulation rate, cyclicity and progesterone and FSH levels in Ile-de-France ewes (4 control and 16 irradiated) after they were treated during the breeding season. The doses used (800 and 2 400 R) destroyed 50% of all size classes of the follicular population. Ovulation occurred in 87% of the treated ewes (ovulation rate = 1) when they were irradiated 24 h after luteolysis; 78% of the corpora lutea resulting from these ovulations were normal as to length and progesterone production. FSH in treated ewes started to increase 20 h after treatment and remained higher than in the controls until ovulation time. Later, while these levels were similar between groups on the day of ovulation, high ovulatory levels persisted in irradiated ewes. In the next cycles, the length of the follicular phases, ovulation rate and progesterone and FSH levels were similar between groups. 相似文献
824.
M. Hassnaoui R. Pupier J. Attia A. Blanc M. Beauchaud B. Buisson 《Biological Rhythm Research》2013,44(4):353-366
The moving window principle applied to the khi-square periodogram allows, through local successive examinations, a comprehensive study of the biological time series. This method puts forward several cases of transition linked to environmental or physiological changes. Furthermore, we applied the Grassberger and Procaccia method (1983) for the analysis of more complex transition problems. The method helps to detect chaotic properties in behavioral activity rhythms. 相似文献
825.
Effects of dexamethasone on bone marrow erythropoiesis 总被引:2,自引:0,他引:2
826.
827.
Avi Eldar Claudio Ghittino Liliana Asanta Elena Bozzetta Mariella Goria Marino Prearo Herve Bercovier 《Current microbiology》1996,32(2):85-88
The reference strains of Enterococcus seriolicida (ATCC 49156T) (T = type strain) and of Lactococcus garvieae (ATCC 43921T) and 30 field strains of Gram-positive cocci isolated from diseased rainbow trout in Italy were found to be phenotypically
(API 20 STREPT and API 50 CH) and genetically (DNA-DNA hybridization) similar. The high DNA-DNA homologies (70–100%) and the
low ΔTm(e) (less than 1.1°C) among these strains showed that Enterococcus seriolicida and Lactococcus garvieae are synonyms, describing a single bacterial species. E. seriolicida strains should be classified as L. garvieae, which must be considered as a major pathogen of freshwater and salt water fish with a world-wide distribution. 相似文献
828.
Construction of a reference linkage map of Vitis amurensis and genetic mapping of Rpv8, a locus conferring resistance to grapevine downy mildew 总被引:1,自引:0,他引:1
Blasi P Blanc S Wiedemann-Merdinoglu S Prado E Rühl EH Mestre P Merdinoglu D 《TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik》2011,123(1):43-53
Downy mildew, caused by the oomycete Plasmopara viticola, is one of the major threats to grapevine. All traditional cultivars of grapevine (Vitis vinifera) are susceptible to downy mildew, the control of which requires regular application of fungicides. In contrast, many sources of resistance to P. viticola have been described in the Vitis wild species, among which is V. amurensis Rupr. (Vitaceae), a species originating from East Asia. A genetic linkage map of V. amurensis, based on 122 simple sequence repeat and 6 resistance gene analogue markers, was established using S1 progeny. This map covers 975?cM on 19 linkage groups, which represent 82% of the physical coverage of the V. vinifera reference genetic map. To measure the general level of resistance, the sporulation of P. viticola and the necrosis produced in response to infection, five quantitative and semi-quantitative parameters were scored 6?days post-inoculation on the S1 progeny. A quantitative trait locus (QTL) analysis allowed us to identify on linkage group 14 a major QTL controlling the resistance to downy mildew found in V. amurensis, which explained up to 86.3% of the total phenotypic variance. This QTL was named ??Resistance to Plasmopara viticola 8?? (Rpv8). 相似文献
829.
830.