abstract：:The spatial variation of soil pH and soil organic matter (SOM) in the urban area of Xuzhou, China, was investigated in this study. Conventional statistics, geostatistics, and a geographical information system (GIS) were used to produce spatial distribution maps and to provide information about land use types. A total ...

journal_title：Comptes rendus biologies

authors： Mao Y,Sang S,Liu S,Jia J

更新日期：2014-05-01 00:00:00

abstract：:Male infertility is the cause in half of all childless partnerships. Numerous factors contribute to male infertility, including chromosomal aberrations and gene defects. Few data exist regarding the association of these chromosomal aberrations with male infertility in Arab and North African populations. We therefore a...

journal_title：Comptes rendus biologies

authors： Amouri A,Hammami W,Kilani O,Bouzouita A,Ayed W,Ben Meftah M,Khrouf M,Fadhlaoui A,Abdelhak S,Zhioua F,Jaafoura MH

更新日期：2014-04-01 00:00:00

abstract：:The voltage-gated sodium channel (VGSC) is a complex, which is composed of one pore-forming α subunit and at least one β subunit. Up to now, five β subunits are known: β1/β1A, β1B, β2, β3, and β4, encoded by four genes (SCN1B∼SCN4B). It is critical to have a deep understanding of the interaction between β1 and β3 subu...

journal_title：Comptes rendus biologies

authors： Liu Q,Jin Y,Wang K,Meng XX,Yang Y,Yang Z,Zhao YS,Zhao MY,Zhang JH

更新日期：2014-02-01 00:00:00

abstract：:Data on mineral elements in spirulinas being limited, we analyzed macrominerals and trace elements of samples from France and Africa. Spirulinas cultivated in France have a composition in macromineral elements similar to those of the literature. The entire contents of trace elements are low. Unlike marine cyanobacteri...

journal_title：Comptes rendus biologies

authors： Vicat JP,Doumnang Mbaigane JC,Bellion Y

更新日期：2014-01-01 00:00:00

abstract：:We show that the chemotactic movements of colonies of the starving amoeba Dictyostelium discoideum are driven by a force that depends on both the direction of propagation (directional sensing) of reaction-diffusion chemotactic waves and on the gradient of the concentration of the chemoattractant, solving the chemotact...

journal_title：Comptes rendus biologies

authors： Dilão R,Hauser MJ

更新日期：2013-11-01 00:00:00

abstract：:An efficient method of regeneration for antidiabetic plant (Stevia rebaudiana) has been established for healthy biomass and main steviol glycosides (SGs) production, using different PGRs and agar concentrations. Higher callus induction (93.3%) was recorded when leaf explants were placed on an MS medium supplemented wi...

journal_title：Comptes rendus biologies

authors： Aman N,Hadi F,Khalil SA,Zamir R,Ahmad N

更新日期：2013-10-01 00:00:00

abstract：:Potato is the fourth staple food in the world, following rice, wheat, and maize, whereas tubers contain high quality of starch, relatively high amounts of vitamin C and many other important substances. It also contains relatively good quality of protein (about 3 to 6% of the dried weight) and patatin, and 11S globulin...

journal_title：Comptes rendus biologies

authors： Goo YM,Kim TW,Lee MK,Lee SW

更新日期：2013-09-01 00:00:00

abstract：:In spite of great progress in schistosomiasis control during the last decade in Burkina Faso, this disease remains a public health concern in the country. Indeed, our study consisted of the analysis of parasitological data related to Schistosoma haematobium and Schistosoma mansoni and in malacological investigations. ...

journal_title：Comptes rendus biologies

authors： Zongo D,Kabre BG,Dayeri D,Savadogo B,Poda JN

更新日期：2013-05-01 00:00:00

abstract：:This work assesses the impact of the use of chicken manure and irrigation water on the toxicological quality of Solanum macrocarpon, a highly appreciated vegetable. A control site in Glo-Djigbé, gardeners' sites at Houéyiho, Fidjrossè, and Agongbomey were included in the study. Lead has been sought in the environment ...

journal_title：Comptes rendus biologies

authors： Dougnon V,Edorh P,Bankolé H,Dougnon J,Klotoé JR,Loko F,Creppy EE,Boko M

更新日期：2013-05-01 00:00:00

abstract：:In this report, we review the recent advances in evaluation and treatment of transfusional iron overload (IO). Results of the French thalassaemia registry are described. According to the disease, thalassaemia major or sickle cell anaemia, mechanisms and toxicity of iron overload, knowledge about IO long-term outcome a...

journal_title：Comptes rendus biologies

authors： Thuret I

更新日期：2013-03-01 00:00:00

abstract：:During the analysis of alien and invasive flora of Europe, as a threat to biodiversity, data for Croatia were missing. The aim of our research was to analyse distributional patterns and range size of all invasive alien plants (64) for the state area (57,000 km(2)). They were detected on 49% of the state territory, ave...

journal_title：Comptes rendus biologies

authors： Nikolić T,Mitić B,Milašinović B,Jelaska SD

更新日期：2013-02-01 00:00:00

abstract：:Alloscorpiops (Laoscorpiops) calmonti subgen. n., sp. n., belonging to the family Euscorpiidae Laurie, is described on the basis of single female specimen collected in the Pathoumphone District of southern Laos. This new scorpion taxon may represent yet another endemic element for the fauna of Laos. The new subgenus i...

journal_title：Comptes rendus biologies

authors： Lourenço WR

更新日期：2013-01-01 00:00:00

abstract：:The polymorphism of the mitochondrial gene cytochrome oxidase III was studied in the Mediterranean octopus, Octopus vulgaris Cuvier, 1797. A total of 202 specimens from seven sampling sites were analysed with the aim of elucidating patterns of genetic structure in the central Mediterranean Sea and to give an insight i...

journal_title：Comptes rendus biologies

authors： Fadhlaoui-Zid K,Knittweis L,Aurelle D,Nafkha C,Ezzeddine S,Fiorentino F,Ghmati H,Ceriola L,Jarboui O,Maltagliati F

更新日期：2012-10-01 00:00:00

abstract：:A new genus and species of stick insect is described and figured from Mount Halcon, on the Philippine island of Mindoro. Conlephasma enigma gen. et sp. n. is a stout, flightless, and apparently ground-dwelling species with vivid integumental colors. When disturbed, specimens spray a defensive secretion from the protho...

journal_title：Comptes rendus biologies

authors： Gottardo M,Heller P

更新日期：2012-09-01 00:00:00

abstract：:Choosing a suitable habitat is a main step in the settlement process, particularly for species having weak movement abilities. Reliable cues are thus needed for habitat selection. In silk-spinning arthropods, silk can be used as a social cue to select an appropriate location. Silk can also provide information on the p...

journal_title：Comptes rendus biologies

authors： Clotuche G,Deneubourg JL,Mailleux AC,Detrain C,Hance T

更新日期：2012-08-01 00:00:00

abstract：:Spermiogenesis in Robphildollfusium fractum begins with the formation of a differentiation zone containing: two centrioles, each bearing striated rootlets, nucleus, several mitochondria and an intercentriolar body constituted by seven electron-dense layers. The two centrioles originate two free flagella growing orthog...

journal_title：Comptes rendus biologies

authors： Bakhoum AJ,Sène A,Ndiaye PI,Bâ CT,Miquel J

更新日期：2012-07-01 00:00:00

abstract：:The objective of this study is to investigate the genetic diversity, the relationships among six Tunisian wild cardoon populations (Cynara cardunculus var. sylvestris) and a Tunisian's population of cultivated cardoon (Cynara cardunculus var. altilis DC) in seven different geographical locations (Tiurif, Bahra, Zriba,...

journal_title：Comptes rendus biologies

authors： Khaldi S,Sonnante G,El Gazzah M

更新日期：2012-06-01 00:00:00

abstract：:The first veterinary school in the world was created in Lyon in 1761 by an equerry, Claude Bourgelat (1712-1779), a man renowned for his skill in horsemanship and horse medicine, a man fully able to understand the issues of his time. Aware of the scope of the physiocratic movement and of the need to improve the health...

journal_title：Comptes rendus biologies

authors： Degueurce C

更新日期：2012-05-01 00:00:00

abstract：:Several studies have demonstrated that, in a context of oxidative stress, resveratrol, a polyphenol found in wine, could act as a protective agent on endothelial cells by various mechanisms but without showing that it could penetrate inside the cell. The aim of this study was to detect for the first time resveratrol i...

journal_title：Comptes rendus biologies

authors： Frombaum M,Le Clanche S,Thérond P,Nubret E,Bonnefont-Rousselot D,Borderie D

更新日期：2012-04-01 00:00:00

abstract：:Females must evaluate male quality to perform mate choice. Since females generally base their selection on different male features, individual females may differ in their choice. In this study, we show that concordance between females in mate choice decisions may arise without any experimental maximization of a partic...

journal_title：Comptes rendus biologies

authors： Beigneux E,Féron C,Gouat P

更新日期：2012-03-01 00:00:00

abstract：:The larvicidal activity of ethanolic leaf extracts from two Artemisia species, Artemisia campestris var. glutinosa and A. molinieri, on mosquito Culex pipiens Linnaeus (Diptera, Culicidae) larvae was investigated. Since A. molinieri is a rare and protected species confined to temporary ponds of Southern France, its to...

journal_title：Comptes rendus biologies

authors： Masotti V,De Jong L,Moreau X,Rabier J,Laffont-Schwob I,Thiéry A

更新日期：2012-01-01 00:00:00

abstract：:To infer the anatomical evolution of the Hymenophyllaceae (filmy ferns) and to test previously suggested scenarios of regressive evolution, we performed an exhaustive investigation of stem anatomy in the most variable lineage of the family, the trichomanoids, using a representative sampling of 50 species. The evolutio...

journal_title：Comptes rendus biologies

authors： Dubuisson JY,Hennequin S,Bary S,Ebihara A,Boucheron-Dubuisson E

更新日期：2011-12-01 00:00:00

abstract：:Interfacial affinity between lignin model compound (dehydrogenation polymer [DHP]) and cellulose nanocristals (CN) was studied before building a nanocomposite cellulose/lignin in multilayer form by spin-coating method. The adsorption isotherm of DHP was measured by ellipsometry at the liquid/CN film interface and show...

journal_title：Comptes rendus biologies

authors： Hambardzumyan A,Molinari M,Dumelie N,Foulon L,Habrant A,Chabbert B,Aguié-Béghin V

更新日期：2011-11-01 00:00:00

abstract：:Described here are the findings of an electron and ion microscopic study of renal biopsies of young children, with a particular attention to the intracytoplasmic and intranuclear changes observed in the podocytes of the proteinuric patients. In the cytoplasm, there is a considerable development of the ergastoplasm, as...

journal_title：Comptes rendus biologies

authors： Galle P,Labejof L

更新日期：2011-10-01 00:00:00

abstract：:Over the decades, basic research in life sciences has profited greatly from the study of the small unicellular fungal species Saccharomyces cerevisiae. This yeast turned out to be key for the identification and understanding of molecular mechanisms that underlay the basic functions of all eukaryotic cells. These inclu...

journal_title：Comptes rendus biologies

authors： Knop M

更新日期：2011-08-01 00:00:00

abstract：:With the development of new sequencing technologies in the past decade, yeast genomes have been extensively sequenced and their structures investigated. Transposable elements (TEs) are ubiquitous in eukaryotes and constitute a limited part of yeast genomes. However, due to their ability to move in genomes and generate...

journal_title：Comptes rendus biologies

authors： Bleykasten-Grosshans C,Neuvéglise C

更新日期：2011-08-01 00:00:00

abstract：:This Note presents experimental evidence that a hyperbolic tissue flow plays an important role in the establishment of the organization plan of vertebrates. We have followed the development of chicken embryos from the gastrula stage up to the moment when the body plan is recognizable. We have found that establishment ...

journal_title：Comptes rendus biologies

authors： Fleury V,Boryskina OP,Al-Kilani A

更新日期：2011-07-01 00:00:00

abstract：:Policy for biodiversity conservation must evolve to cope with the increasing human footprint on natural systems. A major issue here is the need for policy for protected areas, which integrates their surrounding landscape and local human populations in the construction of socially grounded measures. To illustrate curre...

journal_title：Comptes rendus biologies

authors： Thompson JD,Mathevet R,Delanoë O,Gil-Fourrier C,Bonnin M,Cheylan M

更新日期：2011-05-01 00:00:00

abstract：:To determine if a type of unicoloniality exists in the fire ant Solenopsis saevissima in its native range, we conducted intraspecific aggressiveness tests in French Guiana between workers originating from 15 human-disturbed sites. We identified two "colonial groups" spread over 54 km and 12.5 km, respectively. Workers...

journal_title：Comptes rendus biologies

authors： Martin JM,Roux O,Groc S,Dejean A

更新日期：2011-04-01 00:00:00

abstract：:Cattle, sheep and goats were domesticated about 10,000 years ago, spread out of the domestication centers in Europe, Asia, and Africa during the next few thousands years, and gave many populations locally adapted. After a very long period of soft selection, the situation changed dramatically 200 years ago with the eme...

journal_title：Comptes rendus biologies

authors： Taberlet P,Coissac E,Pansu J,Pompanon F

更新日期：2011-03-01 00:00:00

abstract：:This note presents a mechanistic explanation of the transition between the morphology of cephalochordates to that of amniotes. By a careful study of the morphogenetic movements which occur during the early stages of development of a typical amniote (a chicken embryo), we are able to show that the formation of a verteb...

journal_title：Comptes rendus biologies

authors： Fleury V

更新日期：2011-02-01 00:00:00

abstract：:This article examines in a broad perspective entropy and some examples of its relationship to evolution, genetic instructions and how we view diseases. Living organisms are programmed by functional genetic instructions (FGI), through cellular communication pathways, to grow and reproduce by maintaining a variety of he...

journal_title：Comptes rendus biologies

authors： Trevors JT,Saier MH Jr

更新日期：2011-01-01 00:00:00

abstract：:The history of selection of Daphnia magna populations living in North African temporary ponds may differ from populations inhabiting permanent ponds. Laboratory experiments were conducted to examine the effect of fish Gambusia holbrooki and invertebrate Notonecta glauca kairomones on the life history traits of the fre...

journal_title：Comptes rendus biologies

authors： Chakri K,Touati L,Alfarhan AH,Al-Rasheid KA,Samraoui B

更新日期：2010-11-01 00:00:00

abstract：:Stochastic modeling of dairy cattle populations using multiple ovulation and embryo transfer (MOET) was used to compare 15-year genetic responses with an artificial insemination (AI) program. MOET and AI techniques were simulated in four populations, two with 100 breeding females each and two with 400 breeding females...

journal_title：Comptes rendus biologies

authors： Hossein-Zadeh NG

更新日期：2010-10-01 00:00:00

abstract：:This article presents the floristic, structural, and syntaxonomical features of plant assemblages in temporary wetlands and the pattern of the corresponding habitat types; according to the Habitats Directive. Nine pristine temporary wetlands covering a wide range of shapes, elevations and substrates were monitored. Th...

journal_title：Comptes rendus biologies

authors： Bagella S,Caria MC,Zuccarello V

更新日期：2010-09-01 00:00:00

abstract：:A field experiment was conducted with paddy (Oryza sativa L.) irrigated with different concentrations (Control, 2.5, 5, 10, 25, 50, 75, 100 and 200 mg/l) of chromium. The changes in growth, yield, nutrient content and chromium accumulation in the paddy are reported. The growth of shoot, root, total leaf area, fresh we...

journal_title：Comptes rendus biologies

authors： Sundaramoorthy P,Chidambaram A,Ganesh KS,Unnikannan P,Baskaran L

更新日期：2010-08-01 00:00:00

abstract：:Aphids are among the few organisms capable of reproducing either sexually or asexually. This plasticity in reproductive mode is viewed as an adaptive response to cope with seasonal changes. Clonal reproduction occurs during the growing season allowing rapid population increase, while sexual reproduction occurs during ...

journal_title：Comptes rendus biologies

authors： Simon JC,Stoeckel S,Tagu D

更新日期：2010-06-01 00:00:00

abstract：:Leaves, which play an essential role in plant photosynthesis, share common features such as being flat structures, but also show an impressive variability in their sizes and shapes. Following its initiation in the meristems, leaf development is patterned along three polarization axes to establish its basic architectur...

journal_title：Comptes rendus biologies

authors： Hasson A,Blein T,Laufs P

更新日期：2010-04-01 00:00:00

abstract：PURPOSE:The aim of this study was to monitor in vivo with low field MRI growth of a murine orthotopic glioma model following a suicide gene therapy. METHODS:The gene therapy consisted in the stereotactic injection in the mice brain of a modified vaccinia virus Ankara (MVA) vector encoding for a suicide gene (FCU1) tha...

journal_title：Comptes rendus biologies

authors： Breton E,Goetz C,Kintz J,Accart N,Aubertin G,Grellier B,Erbs P,Rooke R,Constantinesco A,Choquet P

更新日期：2010-03-01 00:00:00

abstract：:Why was sexual selection so important to Darwin? And why was it de-emphasized by almost all of Darwin's followers until the second half of the 20th century? These two questions shed light on the complexity of the scientific tradition named "Darwinism". Darwin's interest in sexual selection was almost as old as his dis...

journal_title：Comptes rendus biologies

authors： Gayon J

更新日期：2010-02-01 00:00:00