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Saudi Journal of Biological Sciences

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https://www.readbyqxmd.com/read/28053594/comparative-morphological-and-anatomical-characters-of-cakile-arabica-from-different-habitat-in-eastern-region-of-saudi-arabia
#1
Wafa'a A Al-Taisan, Dalia G Gabr
Morphological, anatomical and physiological plasticity was examined for Cakile arabica from three different sites at the coastal part of the Arabian Gulf near Ad Dammam city in the eastern region of Saudi Arabia. Morphological investigation showed that the size and number of lobes of the leaves are increased in sites (I) which have high salt stress. Also anatomical investigation using a light microscope showed that the plant is adaptive for salt stress by increasing the thickening of the cuticle or epidermis layer and increase in the area of vascular bundles...
January 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28053593/evaluation-of-aerial-microbial-pollutants-in-al-haram-al-nabawi-during-pilgrimage-of-2013
#2
Kholoud M Alananbeh, Nahla Boquellah, Nadia Al Kaff, Majid Al Ahmadi
Al-Madinah Al-Munawwarah is the second holiest site in Islam. The possibility of new emerging microbes is valid due to the increased number of pilgrims. The objectives of the current study were to estimate the numbers of fungi and bacteria inside and outside Al-Haram Al-Nabawi and to find whether new bacterial and fungal species have emerged compared to previous studies. Air samples were collected twice a day from 12 spots and four directions during the pilgrim year of 2013 for four consecutive weeks by using the sedimentation method...
January 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28053592/extracellular-biosynthesis-of-silver-nanoparticles-using-rhizopus-stolonifer
#3
Khalid AbdelRahim, Sabry Younis Mahmoud, Ahmed Mohamed Ali, Khalid Salmeen Almaary, Abd El-Zaher M A Mustafa, Sherif Moussa Husseiny
Synthesis of silver nanoparticles (AgNPs) has become a necessary field of applied science. Biological method for synthesis of AgNPs by Rhizopus stolonifer aqueous mycelial extract was used. The AgNPs were identified by UV-visible spectrometry, X-ray diffraction (XRD), transmission electron microscopy (TEM) and Fourier transform infrared spectrometry (FT-IR). The presence of surface plasmon band around 420 nm indicates AgNPs formation. The characteristic of the AgNPs within the face-centered cubic (fcc) structure are indicated by the peaks of the X-ray diffraction (XRD) pattern corresponding to (1 1 1), (2 0 0) and (2 2 0) planes...
January 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28053591/potentially-inappropriate-medications-prescribed-for-elderly-patients-through-family-physicians
#4
Abdulaziz Al Odhayani, Ayla Tourkmani, Mohammed Alshehri, Hala Alqahtani, Adel Mishriky
The elderly population is increasing throughout the globe, resulting in higher healthcare costs. Potential inappropriate medication (PIM) prescriptions are a major health problem affecting the elderly persons. Due to limited studies in PIM use in primary care and home healthcare in Saudi Arabia, we aim to examine the extent of PIM prescription for and use by elderly patients. This study was carried out with 798 elderly patients, arbitrarily selected from Prince Sultan Medical Military City through the patient register...
January 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28053590/in-vitro-biocontrol-activity-of-halotolerant-streptomyces-aureofaciens-k20-a-potent-antagonist-against-macrophomina-phaseolina-tassi-goid
#5
P Shrivastava, R Kumar, M S Yandigeri
A halotolerant actinobacterial strain isolated from salinity affected soil of Eastern Indo-Gangetic plains (IGP), Uttar Pradesh, India, was characterised for its antagonistic potential against Macrophomina phaseolina by dual-culture assay. It was shown to effectively inhibit the growth of M. phaseolina with an inhibition zone of 27 ± 1.33 mm. Further the actinobacterial strain was evaluated for its plant growth promoting (PGP) properties and its ability to produce biocontrol related extracellular enzymes viz...
January 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28053589/nectar-secretion-dynamics-and-honey-production-potentials-of-some-major-honey-plants-in-saudi-arabia
#6
Nuru Adgaba, Ahmed Al-Ghamdi, Yilma Tadesse, Awraris Getachew, Awad M Awad, Mohammad J Ansari, Ayman A Owayss, Seif Eldin A Mohammed, Abdulaziz S Alqarni
The contribution of a bee plant species to honey production depends on the plant's nectar secretion quality and quantity, which is mainly governed by biotic and abiotic factors. The aim of the current study, was to investigate the nectar secretion dynamics and honey production potential of 14 major bee plant species of the target area. We examined the quantity and dynamics of nectar sugar per flower five times a day using a nectar sugar washing technique and direct measuring of nectar with calibrated capillary tubes...
January 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28053588/the-impact-of-arbuscular-mycorrhizal-fungi-in-mitigating-salt-induced-adverse-effects-in-sweet-basil-ocimum-basilicum-l
#7
Khalid M Elhindi, Ahmed Sharaf El-Din, Abdallah M Elgorban
Salinity is one of the serious abiotic stresses adversely affecting the majority of arable lands worldwide, limiting the crop productivity of most of the economically important crops. Sweet basil (Osmium basilicum) plants were grown in a non-saline soil (EC = 0.64 dS m(-1)), in low saline soil (EC = 5 dS m(-1)), and in a high saline soil (EC = 10 dS m(-1)). There were differences between arbuscular mycorrhizal (Glomus deserticola) colonized plants (+AMF) and non-colonized plants (-AMF). Mycorrhiza mitigated the reduction of K, P and Ca uptake due to salinity...
January 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28053587/antimicrobial-antioxidant-properties-and-chemical-composition-of-seaweeds-collected-from-saudi-arabia-red-sea-and-arabian-gulf
#8
Nadine M S Moubayed, Hadeel Jawad Al Houri, Manal M Al Khulaifi, Dunia A Al Farraj
The present study demonstrates the antibacterial activity of selected brown and green marine algae collected from Saudi Arabia Red Sea and Arabian Gulf. The methanolic and acetone extracts were tested against gram positive, gram negative bacteria and Candida albicans in an attempt to be used as an alternative to commonly used antibiotics. Both brown seaweed species Sargassum latifolium B and Sargassum platycarpum A methanolic extracts were found to be active against gram positive than gram negative; however, S...
January 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28053586/comparison-of-phenotypic-and-pcr-methods-for-detection-of-carbapenemases-production-by-enterobacteriaceae
#9
Maryam AlTamimi, Ali AlSalamah, Manal AlKhulaifi, Hisham AlAjlan
Dissemination of carbapenem resistance via Enterobacteriaceae, particularly among Klebsiella pneumoniae and Escherichia coli, is a major public health concern. Rapid methods for determining antimicrobial susceptibility are important to ensure adequate and appropriate use of antimicrobial agents and to limit the spread of these bacteria. In the current study, we compared the rapidity, sensitivity and specificity of traditional methods and molecular-based Xpert Carba-R PCR assay to identify sixty isolates, (26 E...
January 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28053585/comparative-efficacy-of-different-approaches-to-managing-meloidogyne-incognita-on-green-bean
#10
Ahmad S Al-Hazmi, Ahmed A M Dawabah, Saleh N Al-Nadhari, Fahad A Al-Yahya
A greenhouse study was conducted to compare the relative efficacy of different approaches to managing Meloidogyne incognita on green bean. These approaches included chemical (fumigant, non-fumigant, seed dressing, and seed dip), biological (the egg-parasitic fungus, Paecilomyces lilacinus and the mycorrhizal fungus Glomus sp.), physical (soil solarization), and cultural (chicken litter and urea) methods. Accordingly, nine different control materials and application methods plus nematode-infected and non-infected controls were compared...
January 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28053584/effect-of-cynomorium-total-flavone-on-depression-model-of-perimenopausal-rat
#11
Mingsan Miao, Xiaoli Yan, Lin Guo, Pengfei Li
PURPOSE: To observe the effect of cynomorium total flavone on the depression model of perimenopausal rat and to analyze the action characteristics of cynomorium total flavone on depression of rat with perimenopausal syndrome. METHOD: Duplicate the model of rat with perimenopausal depression based on the combined method of incomplete castration and chronic stimulation, and keep drug administration for 35d. And then measure related behavior indicators and the change of biochemical index level in serum and brains; measure the estrogen/androgen receptor (ER/AR) in related tissues and the ERmRNA expression in hypothalamus...
January 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28053583/margin-based-ontology-sparse-vector-learning-algorithm-and-applied-in-biology-science
#12
Wei Gao, Abdul Qudair Baig, Haidar Ali, Wasim Sajjad, Mohammad Reza Farahani
In biology field, the ontology application relates to a large amount of genetic information and chemical information of molecular structure, which makes knowledge of ontology concepts convey much information. Therefore, in mathematical notation, the dimension of vector which corresponds to the ontology concept is often very large, and thus improves the higher requirements of ontology algorithm. Under this background, we consider the designing of ontology sparse vector algorithm and application in biology. In this paper, using knowledge of marginal likelihood and marginal distribution, the optimized strategy of marginal based ontology sparse vector learning algorithm is presented...
January 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28053582/desulphurization-characteristics-of-bamboo-charcoal-from-sulfur-solution
#13
Shengbo Ge, Zhenling Liu, Rende Li, Yuzo Furuta, Wanxi Peng
Sulfur powder and sulfur dioxide (SO2) often floated in air, produced acid rain and algal blooms, and could cause diseases. Bamboo charcoal could have adsorption and filtration properties. In order to figure out the optimal adsorption condition and the intrinsic change of the bamboo charcoal, five chemicals were adsorbed by bamboo charcoal and were analyzed by FT-IR. Fe2(SO4)3's, Na2SO4's, Na2S2O8's, S's, and Na2SO3's optimal adsorption condition was the concentration of 19 g/1000 g and stir time of 20 min, 21 g/1000 g and stir time of 60 min, 7 g/1000 g and stir time of 120 min, 11 g/1000 g and stir time of 120 min, 21 g/1000 g and stir time of 60 min, respectively...
January 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28053581/optimization-of-formulation-and-processing-of-moringa-oleifera-and-spirulina-complex-tablets
#14
Yi Zheng, Fan Zhu, Dan Lin, Jun Wu, Yichao Zhou, Bohn Mark
Objective: To prepare a more comprehensive nutrition, more balanced proportion of natural nutritional supplement tablets with Moringa oleifera leaves and spirulina the two nutrients which have complementary natural food ingredients. Method: On the basis of research M. oleifera leaves with spirulina nutrient composition was determined on M. oleifera leaves and spirulina ratio of raw materials, and the choice of microcrystalline cellulose, sodium salt of caboxy methyl cellulose(CMC),magnesium stearate excipient, through single factor and orthogonal experiment, selecting the best formula tablets prepared by powder direct compression technology, for preparation of M...
January 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28053580/effects-of-soybean-oligosaccharides-on-intestinal-microbial-communities-and-immune-modulation-in-mice
#15
Yan Ma, Xingzhuang Wu, Vigna Giovanni, Xianjun Meng
: Soybean oligosaccharides (SBOSs) are potential prebiotics that may be used to improve immune function. Here, we investigated the effects of intragastric administration of SBOSs in mice to determine the effects on autochthonous intestinal microbial communities and immunological parameters. Results E: After 22-day administration, 4.0 g kg body weight (BW)(-)(1) SBOSs significantly enhanced the proliferation of bifidobacteria and lactic acid bacteria (LAB) as compared to the control...
January 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28053579/the-influences-of-age-on-t-lymphocyte-subsets-in-c57bl-6-mice
#16
Jing Xie, Jin Zhang, Huimin Wu, Xiaochen Tang, Jie Liu, Guangwen Cheng, Ping Li
The aim of this study is to evaluate the age related changes of T lymphocyte subsets in C57BL/6 mice and immune function. Multi-color immunofluorescence techniques that were used to analyse relative numbers of T lymphocyte subsets include CD4(+), CD8(+), naive and memory CD4(+) and CD8(+), CD8(+)CD28(+) T cells in peripheral blood of C57BL/6 mice from different age groups (Group I: 2 months old; Group II: 7 months old; Group III: 21 months old); Splenocytes isolated from different group mice were stimulated with Con A to evaluate the proliferative ability...
January 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28053578/adsorption-characteristics-of-sulfur-powder-by-bamboo-charcoal-to-restrain-sulfur-allergies
#17
Wanxi Peng, Shengbo Ge, Zhenling Liu, Yuzo Furuta
Exposures to particulate matter with a diameter of 2.5 μm or less (PM2.5) may influence the risk of birth defects and make you allergic, which causes serious harm to human health. Bamboo charcoal can adsorb harmful substances,that was of benefitto people's health. In order to figure out the optimal adsorbtion condition and the intrinsic change of bamboo charcoal, five chemicals were adsorbed by bamboo charcoal and were analyzed by FT-IR. The optimal blast time was 80 min of Na2SO3, 100 min of Na2S2O8, 20 min of Na2SO4, 120 min of Fe2(SO4)3 and 60 min or 100 min of S...
January 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28053577/tissue-factor-pathway-inhibitor-2-induced-hepatocellular-carcinoma-cell-differentiation
#18
Ziwei Li, Yong Xu, Qin Wang, Changli Xie, Yincui Liu, Zhiguang Tu
To investigate the effect of over-expression of tissue factor pathway inhibitor-2 (TFPI-2) on the differentiation of hepatocellular carcinoma (HCC) cells (Hep3B and HepG2). The TFPI-2 recombinant adenovirus (pAd-TFPI-2) was constructed using the pAdeasy-1 vector system. Transfected by pAd-TFPI-2, the cell proliferation of HCC cells was evaluated by CCK-8 assay, flow cytometry was used to detect cell apoptosis and CD133 expression. Real-time PCR and Western blot were used to detect the expression levels of markers of hepatocellular cancer stem cells (CSC) and hepatocytes...
January 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28053576/in-vitro-effectiveness-of-curcuma-longa-and-zingiber-officinale-extracts-on-echinococcus-protoscoleces
#19
Esam Almalki, Esam M Al-Shaebi, Saleh Al-Quarishy, Mansour El-Matbouli, Abdel-Azeem S Abdel-Baki
Hydatid disease is an important economic and human public health problem with a wide geographical distribution. Surgical excision remains the primary treatment and the only hope for complete cure of hydatosis. The most important complications arising from surgical excision, however, is recurrence, which is due to dissemination of protoscolices during the surgery. Pre-surgical inactivation of the contents of the hydatid cyst by injection of scolicidal agent into the cyst has been used as adjunct to surgery in order to overcome the risk of recurrence...
January 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28053575/faba-bean-drought-responsive-gene-identification-and-validation
#20
Megahed H Ammar, Altaf M Khan, Hussein M Migdadi, Samah M Abdelkhalek, Salem S Alghamdi
This study was carried out to identify drought-responsive genes in a drought tolerant faba bean variety (Hassawi 2) using a suppressive subtraction hybridization approach (SSH). A total of 913 differentially expressed clones were sequenced from a differential cDNA library that resulted in a total of 225 differentially expressed ESTs. The genes of mitochondrial and chloroplast origin were removed, and the remaining 137 EST sequences were submitted to the gene bank EST database (LIBEST_028448). A sequence analysis identified 35 potentially drought stress-related ESTs that regulate ion channels, kinases, and energy production and utilization and transcription factors...
January 2017: Saudi Journal of Biological Sciences
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