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61.
The sesame (Sesamum indicum L.) oil was extracted from the seeds of the sesame that grows in Diyarbakir, SE Anatolia of Turkey. Sesame seed oil was obtained in 58wt/wt%, by traditional solvent extraction. The methylester of sesame (Sesamum indicum L.) seed oil was prepared by transesterification of the crude oil. Transesterification shows improvement in fuel properties of sesame seed oil. This study supports the production of biodiesel from sesame seed oil as a viable alternative to the diesel fuel. 相似文献
62.
Tissue development, homeostasis and tumor pathogenesis all depend upon a complex dialogue between multiple cell types operating within a dynamic three-dimensional (3D) tissue extracellular matrix microenvironment. A major issue is whether the spatial organization of a cell within this 3D tissue microenvironment could modulate cell responsiveness to regulate cell fate decisions such as survival, and if so how. Classic developmental model systems and transgenic animals are instructive but pose special challenges for investigators conducting signaling studies and biochemical assays in tissues. As an alternative, 3D culture model systems exist in which cell-adhesion dependent tissue architecture, heterotypic cell-cell interactions and tissue differentiation can be recapitulated with good fidelity. 3D cell culture models are slowly revealing how tissue architecture can dramatically influence how a cell responds to exogenous stimuli to modify its apoptotic behavior and hence should prove instrumental for identifying novel cell death pathways. 相似文献
63.
Antibiotic susceptibility patterns of respiratory isolates of Staphylococcus aureus in a Turkish university hospital 总被引:1,自引:0,他引:1
Gonlugur U Akkurt I Ozdemir L Bakici MZ Icagasioglu S Gultekin F 《Acta microbiologica Polonica》2003,52(2):143-148
A total of 391 respiratory isolates of Staphylococcus aureus in Sivas (Turkey) were studied between January 1999-2002. The organisms were cultured from the following specimens: throat (43%), sputum (28%), transtracheal/endotracheal aspirates (27%), and bronchial lavage (2%). The isolates were tested against 11 different antibiotics by a disk diffusion method or standardized microdilution technique. Methicillin-resistant isolates constituted 76.9% of all isolates. Most of the methicillin-resistant isolates (95.1%) were isolated from inpatients. The rate of methicillin-resistant isolates in throat, sputum, and tracheal aspirates was 17.2%, 60.1%, and 68.9%, respectively. The resistance of methicillin-resistant isolates in throat to teicoplanin was 3.4%. The methicillin-sensitive isolates were susceptible to most agents tested, while most methicillin-resistant isolates were resistant to these agents. Overall resistance to erythromycin was 61.9%, tetracycline 56.6%, gentamicin 50.7%, ofloxacin 42.0%, rifampin 40.8%, clindamycin 38.9%, chloramphenicol 19.0%, co-trimoxazole 10.2%, and vancomycin 0%. 相似文献
64.
Muhammad Zafar-ul-Hye Tariq Shahzad Bhutta Muhammad Shaaban Shahid Hussain Muhammad Farooq Qayyum Umar Aslam Zahir Ahmad Zahir 《Phyton》2019,88(2):119-129
Soil salinity affects the growth and yield of crops. The stress of soil salinity on plants can be mitigated by inoculation of plant growth promoting bacteria (PGPR). The influence of PGPR inoculation on wheat (Triticum aestivum L.) crop productivity under salinity stress has not been properly addressed so far. Therefore, the present study was conducted to investigate the effects of various PGPR strains (W14, W10 and 6K; alone and combined) at several growth attributes of wheat plant under different soil salinity gradients (3, 6 and 9 dS m-1). The growth attributes of wheat (height, roots, shoots, spikes, grains quality, biological and economical yield, nutrients nitrogen, phosphorus and potassium in grains) were highly affected by salinity and decreased with increasing salinity level. The PGPR inoculation substantially promoted growth attributes of wheat and prominent results were observed in W14 × W10 × 6K treatment at all salinity levels. The results suggest that inoculation of PGPR is a potential strategy to mitigate salinity stress for improving wheat growth and yield. 相似文献
65.
Sarfraz Hussain Muhammad Arshad Muhammad Saleem Zahir Ahmad Zahir 《World journal of microbiology & biotechnology》2007,23(7):939-945
Intensive use of endosulfan has resulted in contamination of soil and water environments at various sites in Pakistan. This
study was conducted to isolate efficient endosulfan-degrading fungal strains from contaminated soils. Sixteen fungal strains
were isolated from fifteen specific sites by employing enrichment techniques while using endosulfan as a sole sulfur source,
and tested for their potential to degrade endosulfan. Among these fungal strains, Chaetosartorya stromatoides, Aspergillus terricola, and Aspergillus terreus degraded both α- and β-endosulfan upto 75% in addition to ∼20% abiotic degradation of the spiked amount (100 mg l−1) in the broth within 12 days of incubation. Biodegradation of endosulfan by soil fungi was accompanied by a substantial decrease
in pH of the broth from 7.0 to 3.2. The major metabolic product was endosulfan diol along with very low concentrations of
endosulfan ether. Maximum biodegradation of endosulfan by these selected fungal strains was found at an initial broth pH of
6, incubation temperature of 30°C and under agitation conditions. This study indicates that the isolated strains carried efficient
enzyme systems required for bioremediation of endosulfan-contaminated soil and water environments. 相似文献
66.
Ahmad Waqar Zahir Adnan Nadeem Muhammad Zia Muhammad Hano Christophe Abbasi Bilal Haider 《In vitro cellular & developmental biology. Plant》2019,55(6):710-719
In Vitro Cellular & Developmental Biology - Plant - Ipomoea turbinata Lagasca and Segura (Purple Moonflower) belongs to the largest flowering genus Ipomoea in the Convolvulaceae family. Ipomoea... 相似文献
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69.
Neupane N Schmidt MF Gulati N Perwaiz M Hammoudeh F Kennedy E Zahir M Enriquez D Quist J 《The Yale journal of biology and medicine》2011,84(1):9-13
Pretracheal abscess due to endotracheal intubation has not been reported in literature. We present a case of a female patient who was admitted with acute hypercapnic respiratory failure. Patient was initially managed with noninvasive ventilation but eventually was intubated after sustaining a cardiac arrest. She could not be extubated because of poor weaning parameters, so a tracheostomy was planned. During surgery, a pretracheal abscess was found with destruction of the second, third, and fourth tracheal rings and intact posterior tracheal wall. The possible risk factors, mechanism of injury, and preventive strategy of tracheal complication of intubation are discussed. 相似文献
70.
Fatima Hamadi Hassan Latrache Hafida Zahir Jamaa Bengourram Nourreeddine Kouider Abderrahmene Elghmari Khalid Habbari 《Microbiology》2011,80(4):488-491
A simple and rapid method, Microbial adhesion to hexadecane, for estimating the cell surface charge is proposed. This method
is based on the determination of cell affinity to hexadecane at low ionic strength and at high ionic strength. The difference
between these two affinities can provide the relative cell surface charge. The application of this method for Staphylococcus aureus and Escherichia coli show that the profile of surface charge evolution as a function of pH was similar to these obtained by microelectrophoresis
method. 相似文献