Browsing Biological & Environmental Sciences by Publication Date
Now showing items 61-80 of 812
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Introduction to the cyanobacteria
( Springer Netherlands , 2012 , Article)Summary: Features of cyanobacteria are introduced for non-specialists by highlighting topics in the various chapters. Aspects where much more is known now than a decade ago are pointed out, such as the importance of ... -
Cyclic AMP-Rap1A signaling activates RhoA to induce α2c-adrenoceptor translocation to the cell surface of microvascular smooth muscle cells
( American Physiological Society , 2012 , Article)Intracellular signaling by the second messenger cyclic AMP (cAMP) activates the Ras-related small GTPase Rap1 through the guanine exchange factor Epac. This activation leads to effector protein interactions, activation, ... -
CAMP induces adhesion of microvascular smooth muscle cells to fibronectin via an epac-mediated but PKA-independent mechanism
( Cell Physiol Biochem Press , 2012 , Article)Background/Aims: Vascular smooth muscle cells (VSMCs) play important roles, both in physiologic and pathophysiologic processes. Adhesion of these cells is critical for their proper functioning, especially in resistance-sized ... -
Standing stocks and body size of deep-sea macrofauna: Predicting the baseline of 2010 Deepwater Horizon oil spill in the northern Gulf of Mexico
( Elsevier , 2012 , Article)A composite database encompassing 6 benthic surveys from years 1983 to 2003 was constructed to evaluate the distribution of macrofaunal biomass in the deep Gulf of Mexico (GoM) prior to the Deepwater Horizon oil spill. ... -
Extracellular matrix (ECM)
( Springer Netherlands , 2012 , Book chapter)Summary: The region of space at the periphery of cyanobacterial cells is the interface between the environment and intracellular processes. This metaspace may include a structure appressed to the outer wall and membrane, ... -
Connecting the dots between PubMed abstracts
( Public Library of Science , 2012 , Article)Background: There are now a multitude of articles published in a diversity of journals providing information about genes, proteins, pathways, and diseases. Each article investigates subsets of a biological process, but to ... -
Correlation between synthesis variation of 2-alkylquinolones and the antifungal activity of aBurkholderia cepacia strain collection
( Springer Netherlands , 2012 , Article)Twenty epiphytic and rhizospheric bacterial strains harbouring strong antifungal activities were isolated from the Tunisian environment. This group of bacteria was identified as Burkholderia cepacia genomovar I using 16S ... -
Isolation of entomopathogenic Bacillus from a biodynamic olive farm and their pathogenicity to lepidopteran and coleopteran insect pests
( Elsevier Ltd , 2012 , Article)The occurrence of Bacillus entomopathogenic bacteria on a Tunisian biodynamic farm was determined by examining 75 samples from olive tree (Olea europaea L.) habitats. A total of 40 Bacillus isolates were characterized ... -
Amino acids Y229 and F603 are involved in Bacillus thuringiensis Cry1Ac delta-endotoxin stability and toxicity
( Blackwell Publishing , 2012 , Article)Bacillus thuringiensis Cry1Ac toxin shares structurally five conserved blocs with the other δ-endotoxins. To study the role of some amino acids belonging to these regions, two mutations, Y(229) P and F(603) S, were introduced ... -
An estimation of erinaceidae phylogeny: A combined analysis approach
( Public Library of Science , 2012 , Article)Background: Erinaceidae is a family of small mammals that include the spiny hedgehogs (Erinaceinae) and the silky-furred moonrats and gymnures (Galericinae). These animals are widely distributed across Eurasia and Africa, ... -
Use of two bacteria for biological control of bayoud disease caused by Fusarium oxysporum in date palm (Phoenix dactylifera L) seedlings
( Elsevier Masson SAS , 2012 , Article)The Bayoud, caused by Fusarium oxysporum f. sp. albedinis (Foa), is the most destructive disease of date palm (Phoenix dactylifera L) in Morocco and Algeria, with no effective control strategy yet available. In this work, ... -
Differential oxidative stress responses to methanol in intraperitoneally exposed rats: Ameliorative effects of Opuntia vulgaris fruit extract
( SAGE Publications , 2012 , Article)Methanol is primarily metabolized by oxidation to formaldehyde and then to formate. These processes are accompanied by formation of superoxide anion and hydrogen peroxide. This article reports data on the effect of ... -
Real-Time PCR Quantification of Metallothionein Gene Expression in Sprague–Dawley Rats Chronically Exposed to Cd
( American Association for Laboratory Animal Science , 2012 , Presentation)Toxicologic impact of Cd leads to multiple human pathologic conditions, and its effect on humans and animals has been extensively studied. Physiologic function of metallothionein (MT1) is not completely understood, but ... -
Improvement of Photorhabdus temperata strain K122 bioinsecticide production by batch and fed-batch fermentations optimization
( Springer-Verlag , 2012 , Article)Optimization of a fermentation process for bioinsecticides production by Photorhabdus temperata strain K122 was investigated into fully controlled 3-L fermenter using an optimized medium (OM). Development of large-scale ... -
Histopathological effects and determination of the putative receptor of Bacillus thuringiensis Cry1Da toxin in Spodoptera littoralis midgut
( Elsevier , 2012 , Article)Bacillus thuringiensis subsp. aizawai strain HD133, known by its effectiveness against Spodoptera species, produces many insecticidal proteins including Cry1Ab, Cry1Ca and Cry1Da. In the present study, the insecticidal ... -
Enzymatic treatment of peanut butter to reduce the concentration of major peanut allergens
( John Wiley & Sons, Ltd. , 2013 , Article)This study investigated the effects of enzymatic treatment of peanut butter on two-major peanut allergens (Ara h 1 and Ara h 2). Home-made and commercial peanut butter samples were treated with alpha-chymotrypsin, trypsin ... -
Contrasting effects of necrotrophic and biotrophic plant pathogens on the aphid Aphis fabae
( John Wiley & Sons Ltd. , 2013 , Article)Phytophagous insects have to contend with a wide variation in food quality brought about by a variety of factors intrinsic and extrinsic to the plant. One of the most important factors is infection by plant pathogenic ... -
A solid-phase extractant based on microemulsion modified date pits for toxic pollutants
( Elsevier , 2013 , Article)Application of microemulsion modified raw date pits as an inexpensive solid extractant for removing methylene blue (MB), copper ion (Cu2+) and cadmium ion (Cd2+) has been presented. The results summarised herein are also ... -
Optimization of bioinsecticides overproduction by Bacillus thuringiensis subsp. kurstaki using linear regression
( Polish Society of Microbiologists , 2013 , Article)A multiple linear regression analyses were performed to screen for the significant factors simultaneously influencing production of delta-endotoxin, proteolytic activities and spore formation by a Bacillus thuringiensis ... -
Application of statistical experimental design for optimisation of bioinsecticides production by sporeless Bacillus thuringiensis strain on cheap medium
(2013 , Article)In order to overproduce bioinsecticides production by a sporeless Bacillus thuringiensis strain, an optimal composition of a cheap medium was defined using a response surface methodology. In a first step, a Plackett-Burman ...