Browsing Biological & Environmental Sciences by Title
Now showing items 99-118 of 915
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Bacillus thuringiensis strain QBT220 pBtoxis plasmid structural instability enhances δ-endotoxins synthesis and bioinsecticidal activity
( Academic Press , 2021 , Article)Bacillus thuringiensis subsp. israelensis (Bti) spherical parasporal crystal contains several insecticidal proteins used as environmentally safe alternative to toxic chemical pesticides. The exploration of a Bti strain ... -
Background invertebrate herbivory on dwarf birch (Betula glandulosa-nana complex) increases with temperature and precipitation across the tundra biome
( Springer Verlag , 2017 , Article)Chronic, low intensity herbivory by invertebrates, termed background herbivory, has been understudied in tundra, yet its impacts are likely to increase in a warmer Arctic. The magnitude of these changes is however hard to ... -
Bayesian network and response surface methodology for prediction and improvement of bacterial metabolite production
( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)The optimization of antifungal activity production by Bacillus amyloliquefaciens was carried out using Response Surface Methodology (RSM) in two steps. The first step involved the screening of cultural parameters affecting ... -
Benthic marine algae of the arabian gulf: A critical review and analysis of distribution and diversity patterns
( Schweizerbart Science Publishers , 2014 , Article)The Arabian Gulf is an extremely inhospitable and physiologically-stressful environment for marine organisms since they are exposed to the widest range and the highest sea temperatures in the world, as well as high salinities. ... -
“Beyond the Source of Bioenergy”: Microalgae in Modern Agriculture as a Biostimulant, Biofertilizer, and Anti-Abiotic Stress
( Multidisciplinary Digital Publishing Institute (MDPI) , 2021 , Article)Microalgae are photoautotrophic organisms with high commercial potential. Extracts from microalgae are extensively used in crop cultivation, mainly because they possess growth-promoting properties, coupled with their ... -
Bio self-healing concrete using MICP by an indigenous Bacillus cereus strain isolated from Qatari soil
( Elsevier , 2022 , Article)In this study, the self-healing process in concrete through microbial-induced calcium carbonate precipitation (MICP) performed by an adapted indigenous strain of Bacillus cereus isolated from soils in Qatar was investigated. ... -
Bio-Based Self-Healing Concrete for Sustainable and Durable Concrete Infrastructure
( Qatar University Press , 2023 , Conference Paper)In this study, bio-self-healing concrete was manufactured using a natural phenomenon called microbial-induced calcium carbonate precipitation (MICP). The bacillus cereus bacteria isolated from Qatari soil was used for this ... -
Bioactive Antimicrobial Peptides: A New Weapon to Counteract Zoonosis.
( MDPI , 2022 , Article Review)Zoonoses have recently become the center of attention of the general population and scientific community. Notably, more than 30 new human pathogens have been identified in the last 30 years, 75% of which can be classified ... -
Biocontrol Activity of Bacillus megaterium BM344-1 against Toxigenic Fungi
( American Chemical Society , 2021 , Article)Mycotoxins are secondary metabolites of some fungal species and represent important contaminants of food and feed. This study aimed to explore the biological control activity of Bacillus megaterium BM344-1 volatile organic ... -
Biocontrol activity of four non- and low-fermenting yeast strains against Aspergillus carbonarius and their ability to remove ochratoxin A from grape juice
( Elsevier , 2014 , Article)Aspergillus spp. infection of grape may lead to ochratoxin A (OTA) contamination in processed beverages such as wine and grape juice. The aim of the current study was to evaluate the biocontrol potential of two non-fermenting ... -
Biocrude oil and high-value metabolite production potential of the Nitzschia sp.
( Springer Science and Business Media Deutschland GmbH , 2021 , Article)Diatom biomass could be an alternative feedstock for producing bio-oil through hydrothermal liquefaction (HTL) technique. Additionally, diatom biomass could have high-value metabolites, such as pigments and polyunsaturated ... -
Biocrude oil production from a self-settling marine cyanobacterium, Chroococcidiopsis sp., using a biorefinery approach
( Elsevier , 2023 , Article)Although the whole microalgal biomass is typically used as a feedstock for hydrothermal liquefaction (HTL), the conversion of a primary metabolite (i.e., carbohydrate) to biocrude is very low. In this study, a self-settling ... -
Biodiversity and possible utilization of halophytes in Qatar
( Springer International Publishing , 2021 , Book chapter)Climate change, nature destruction, food security, and accessibility to fresh water are all the most concerning world issues facing humanities. There are many solutions to minimize the adverse effects of such environmental ... -
Biodiversity of arbuscular mycorrhizal fungi in plant roots and rhizosphere soil from different arid land environment of Qatar
( John Wiley and Sons Inc , 2022 , Article)Recently more attention has been observed toward the role of arbuscular mycorrhizal fungi (AMF) in plant growth. Qatar belongs to the Arabian Gulf region with hot and dry climatic conditions. The study aims to investigate ... -
Biodiversity of Arbuscular Mycorrhizal Fungi in Plant Roots and Rhizosphere Soil from different arid locations of Qatar
( Qatar University Press , 2021 , Poster)Recently more attention or interest has been developed towards the role of Arbuscular Mycorrhizal Fungi (AMF) in plant growth. Qatar, which is a part of the Arabian Gulf region, is mostly arid with hot and dry climatic ... -
Biological Activities and Chemical Composition of Methanolic Extracts of Selected Autochthonous Microalgae Strains from the Red Sea
( MDPI AG , 2015 , Article)Four lipid-rich microalgal species from the Red Sea belonging to three different genera (Nannochloris, Picochlorum and Desmochloris), previously isolated as novel biodiesel feedstocks, were bioprospected for high-value, ... -
Biological control of Botrytis cinerea using the antagonistic and endophytic Burkholderia cepacia Cs5 for vine plantlet protection
( Canadian Science Publishing , 2011 , Article)Antifungal activity of the Burkholderia cepacia Cs5 was tested in vitro and in vivo for the control of Botrytis cinerea . Bacterial biomass was significantly improved by the amendment of ZnSO(4), Mo(7)(NH(4))(6)O(24), and ... -
Biological Pathways Associated With the Development of Pulmonary Toxicities in Mesothelioma Patients Treated With Radical Hemithoracic Radiation Therapy: A Preliminary Study.
( Frontiers Media , 2021 , Article)Radical hemithoracic radiotherapy (RHR), after lung-sparing surgery, has recently become a concrete therapeutic option for malignant pleural mesothelioma (MPM), an asbestos-related, highly aggressive tumor with increasing ... -
Biological-Based Produced Water Treatment Using Microalgae: Challenges and Efficiency
( MDPI , 2022 , Article)Produced water (PW) is the most significant waste stream generated in the oil and gas industries. The generated PW has the potential to be a useful water source rather than waste. While a variety of technologies can be ... -
Biolubricant Synthesis by Additization and Chemical Modification from Lipid-Rich Brackish Coelastrella sp. Using a Biorefinery Approach
( American Chemical Society , 2023 , Article)With a sizable market share and widespread use in automotive and industrial applications, biolubricants are produced from the oils of terrestrial plants that have undergone chemical modification or additive addition. ...