Saudi Journal of Biological Sciences最新文献

筛选
英文 中文
Association of genetic predisposition studies in CYP1A1 polymorphism studies in acute myeloid leukemia 急性髓性白血病 CYP1A1 多态性研究与遗传易感性研究的关联
IF 4.4 2区 生物学
Saudi Journal of Biological Sciences Pub Date : 2023-12-23 DOI: 10.1016/j.sjbs.2023.103917
Abdullah Farasani
{"title":"Association of genetic predisposition studies in CYP1A1 polymorphism studies in acute myeloid leukemia","authors":"Abdullah Farasani","doi":"10.1016/j.sjbs.2023.103917","DOIUrl":"10.1016/j.sjbs.2023.103917","url":null,"abstract":"<div><p>Cytochrome P450 Family 1 Subfamily A Member 1 (CYP1A1) gene is one of the sub-members of CYP450 family member and it encodes with the families of drug metabolizing enzyme families along with the cancers and leukemias. Among leukemias, AML is considered to be one of the important leukemia which attack the older adults. The aim of this study is to explore the role of A4889G polymorphism in CYP1A1 gene in acute myeloid leukemia (AML) in the Saudi population. This study was designed as an experimental case-control study in which 100 AML cases and 100 controls were selected. This in vivo study was carried out using genomic DNA extraction, polymerase chain reaction and agarose gel electrophoresis and then BsrDI restriction enzyme to digest the A4889G polymorphism of the PCR products. In this study, 200 subjects were digested and based on the appearance of the bands, genotypes were categorized. The attained data was used to calculate the clinical details as well as genotype analysis. The study results confirmed AG genotype (OR = 3.23, CI = 1.60–6.55, p = 0.0008), AG + GG (OR = 3.47, CI = 1.76–6.86, p = 0.0002) and GG + AA (OR = 12.47, CI = 6.18–15.17, p &lt; 0.0001) and G vs A (OR = 3.15, CI = 1.71–5.81, p = 0.0001) were associated in AML cases. In conclusion, we confirm that A4889G polymorphism is associated with AML in the Saudi population.</p></div>","PeriodicalId":21540,"journal":{"name":"Saudi Journal of Biological Sciences","volume":"31 3","pages":"Article 103917"},"PeriodicalIF":4.4,"publicationDate":"2023-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1319562X23003625/pdfft?md5=436e08d7a7ee99ccae4592105c3a5410&pid=1-s2.0-S1319562X23003625-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139028252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
IC - Editorial Board IC - 编辑委员会
IF 4.4 2区 生物学
Saudi Journal of Biological Sciences Pub Date : 2023-12-18 DOI: 10.1016/S1319-562X(23)00348-0
{"title":"IC - Editorial Board","authors":"","doi":"10.1016/S1319-562X(23)00348-0","DOIUrl":"https://doi.org/10.1016/S1319-562X(23)00348-0","url":null,"abstract":"","PeriodicalId":21540,"journal":{"name":"Saudi Journal of Biological Sciences","volume":"31 1","pages":"Article 103903"},"PeriodicalIF":4.4,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1319562X23003480/pdfft?md5=bd791fe9dec92da52e00224b56ed0ad3&pid=1-s2.0-S1319562X23003480-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138713563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Biochemical characterization of chamomile essential oil: Antioxidant, antibacterial, anticancer and neuroprotective activity and potential treatment for Alzheimer's disease 洋甘菊精油的生化特征:抗氧化、抗菌、抗癌、神经保护活性及治疗老年痴呆症的潜力
IF 4.4 2区 生物学
Saudi Journal of Biological Sciences Pub Date : 2023-12-16 DOI: 10.1016/j.sjbs.2023.103912
Nada F. Alahmady , Fadwa M. Alkhulaifi , Maha Abdullah Momenah , Asmaa Ali Alharbi , Aminah Allohibi , Nouf H. Alsubhi , Wafaa Ahmed Alhazmi
{"title":"Biochemical characterization of chamomile essential oil: Antioxidant, antibacterial, anticancer and neuroprotective activity and potential treatment for Alzheimer's disease","authors":"Nada F. Alahmady ,&nbsp;Fadwa M. Alkhulaifi ,&nbsp;Maha Abdullah Momenah ,&nbsp;Asmaa Ali Alharbi ,&nbsp;Aminah Allohibi ,&nbsp;Nouf H. Alsubhi ,&nbsp;Wafaa Ahmed Alhazmi","doi":"10.1016/j.sjbs.2023.103912","DOIUrl":"10.1016/j.sjbs.2023.103912","url":null,"abstract":"<div><p>Alzheimer’s disease (AD) causes dementia among older adults, increasing the global burden of dementia. Therefore, this study investigates the potential neuroprotective, antioxidant, and anticancer effects of chamomile essential oil (CCO) in Alzheimer’s disease. CCO’s main volatile compounds (VOCs) were α-bisabolol, camazulene, and bisabolol oxide A, representing 81 % of all VOCs. CCO scavenged 93 % of DPPH free radicals and inhibited the pathogenic bacteria, i.e., <em>Staphylococcus aureus</em> and <em>Salmonella typhi</em>, besides reducing 89 % of brain cancer cell lines (U87). Eighty albino rats were randomized into four groups: standard control, Alzheimer’s disease group caused by AlCl3, and treated groups. The results indicated that the mean value of tumor necrosis factor α (TNF-α), amyloid precursor protein (APP), amyloid beta (Aβ), caspase-3, &amp; B-cell lymphoma 2 (Bcl-2) was significantly elevated due to the harmful effect of AlCl3; however, CCO downregulated these values, and this effect was attributed to the considerable volatile compounds and phenolic compounds content. Additionally, CCO rats showed a significant increment in noradrenergic (NE), dopaminergic (DO), and serotoninergic systems with relative increases of 50, 50, and 14 % compared to diseased rats. The brain histology of CCO-treated rats showed a significant reduction in neuronal degeneration and improved brain changes, and its histology was close to that of the control brain. The results indicated that CCO offers a new strategy that could be used as an antioxidant and neuroprotective agent for AD due to its considerable contents of antioxidants and anti-inflammatory compounds.</p></div>","PeriodicalId":21540,"journal":{"name":"Saudi Journal of Biological Sciences","volume":"31 2","pages":"Article 103912"},"PeriodicalIF":4.4,"publicationDate":"2023-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1319562X23003571/pdfft?md5=6e7473bfeaf460aa4530a9fd34147476&pid=1-s2.0-S1319562X23003571-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138743841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Identification of polymorphic alleles in TERC and TERT gene reprogramming the telomeres of newborn and legacy with parental health 鉴定重编程新生儿端粒的 TERC 和 TERT 基因中的多态等位基因及其与父母健康的关系
IF 4.4 2区 生物学
Saudi Journal of Biological Sciences Pub Date : 2023-12-12 DOI: 10.1016/j.sjbs.2023.103897
Sadia farrukh , Saeeda Baig , Rubina Hussain , Rehan Imad , Ome kulsoom , Mehreen Yousaf Rana
{"title":"Identification of polymorphic alleles in TERC and TERT gene reprogramming the telomeres of newborn and legacy with parental health","authors":"Sadia farrukh ,&nbsp;Saeeda Baig ,&nbsp;Rubina Hussain ,&nbsp;Rehan Imad ,&nbsp;Ome kulsoom ,&nbsp;Mehreen Yousaf Rana","doi":"10.1016/j.sjbs.2023.103897","DOIUrl":"10.1016/j.sjbs.2023.103897","url":null,"abstract":"<div><p>Telomere and telomerase genes (TERC and TERT) highlighted many novel genetic polymorphisms related to common diseases. This study explored the polymorphic alleles of TERC and TERT gene in parents-newborn (triad) and its association with telomere length (TL) and parental diseases (mother: Gestational Diabetes Mellitus (GDM), Preeclampsia, fathers: Diabetes, Hypertension). In this cross-sectional study, the blood samples (n = 612) were collected from parents-newborn triad (204 each) for TL (T/S ratio) quantification by using qPCR, and gene (TERC and TERT) polymorphism was detected by Sanger sequencing. The correlation analysis was used to find an association between paternal TL (T/S ratio) and newborn TL. The multivariate linear regression was applied to determine the effect of parents genes and diseases on newborn TL. A positive association (r = 0.42,0.39) (p &lt; 0.0001) among parents and newborn TL was observed. In the diseased group, both TERC (rs10936599) and TERT (rs2736100) genes had a high frequency of allele C in newborns (OR = 0.94, P = 0.90, OR = 4.24, P = 0.012). However, among parents, TERT gene [Mother CC (B = 0.575; P = 0.196), Father CC (B = -0.739; P = 0.071)] was found significant contributing factor for Newborn TL. Diseased parents with T/T and A/C genotypes had longer newborn TL (2.82 ± 2.43, p &lt; 0.022; 1.80 ± 1.20, p &lt; 0.00) than the C/C genotype. Therefore, the study, confirmed that major allele C of TERC and TERT genes is associated with smaller TL in diseased parents-newborns of the targeted population.</p></div>","PeriodicalId":21540,"journal":{"name":"Saudi Journal of Biological Sciences","volume":"31 2","pages":"Article 103897"},"PeriodicalIF":4.4,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1319562X2300342X/pdfft?md5=9a15ed3d7d9f65fe5c17da6390b7be61&pid=1-s2.0-S1319562X2300342X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138581197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Prognostic significance and expression pattern of glucose related genes in breast cancer: A comprehensive computational biology approach 乳腺癌中葡萄糖相关基因的表达模式和预后意义:综合计算生物学方法
IF 4.4 2区 生物学
Saudi Journal of Biological Sciences Pub Date : 2023-12-10 DOI: 10.1016/j.sjbs.2023.103896
Bader Alshehri
{"title":"Prognostic significance and expression pattern of glucose related genes in breast cancer: A comprehensive computational biology approach","authors":"Bader Alshehri","doi":"10.1016/j.sjbs.2023.103896","DOIUrl":"10.1016/j.sjbs.2023.103896","url":null,"abstract":"<div><p>Breast cancer (BC) is the most common type of malignancy globally and the main reason why women die from tumours. The Warburg effect, a characteristic of tumor, describes how most solid tumour cells acclimatize to their diverse surroundings by relying heavily on aerobic glycolysis for production of energy. In addition to producing key metabolic intermediates that are crucial for the production of macromolecules, which enable cancer cell division, invasiveness, and drug resistance, the transformed energy metabolism also supplies tumor cells with ATP for cellular energy. Here, we evaluated the expression profile, prognostic significance, and clinical relevance of glucose-related genes in BC using a bioinformatic approach. To clarify the significance of glucose-related genes in the development of breast tumours, we also performed a functional enrichment investigation of deregulated genes using the STRING and KEGG portal. The study depicted that of the 61 genes examined, 8 genes had a fold change &lt;/=± 1.5, that is, ADH1C, ADH4, ALDH1A3, ALDOC, FBP1, PCK1, PFKFB1, PFKFB3. Among the highly deregulated genes, ADH1C showed a fold change of −6.669. These deregulated genes were associated with poor prognosis. The study signifies that glucose related genes are highly dysregulated in breast cancer. Deregulation of glucose related genes is linked with a poor prognosis in BC individuals. Thus, targeting glucose related genes will provide an effective treatment approach for BC individuals.</p></div>","PeriodicalId":21540,"journal":{"name":"Saudi Journal of Biological Sciences","volume":"31 1","pages":"Article 103896"},"PeriodicalIF":4.4,"publicationDate":"2023-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1319562X23003418/pdfft?md5=d6b901ec135cdd09dd4b09c5587360f2&pid=1-s2.0-S1319562X23003418-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138560020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Examining the varied concentrations of Mentha spicata and Ocimum basilicum affect the synthesis of AgNPs that restrict the development of bacteria 研究不同浓度的薄荷和欧芹对限制细菌发展的 AgNPs 合成的影响
IF 4.4 2区 生物学
Saudi Journal of Biological Sciences Pub Date : 2023-12-10 DOI: 10.1016/j.sjbs.2023.103899
Motahher A. Qaeed
{"title":"Examining the varied concentrations of Mentha spicata and Ocimum basilicum affect the synthesis of AgNPs that restrict the development of bacteria","authors":"Motahher A. Qaeed","doi":"10.1016/j.sjbs.2023.103899","DOIUrl":"10.1016/j.sjbs.2023.103899","url":null,"abstract":"<div><p>This work examined the effects of varied concentrations of <em>Ocimum basilicum</em> and <em>Mentha spicata</em> aqueous extracts in order to determine the concentration that has the strongest antibacterial impact through the green synthesis technique of silver nanoparticles (AgNPs). In order to synthesize AgNPs using the reduction method, different quantities of reducing and stabilizing agents: (a) 0.75 mM <em>Ocimum basilicum</em> and 0.25 mM <em>Mentha spicata</em>; (b) 0.5 <em>Mentha spicata</em> and 0.5 mM <em>Ocimum basilicum</em>; and (c) 0.25 mM <em>Ocimum basilicum</em> and 0.75 mM <em>Mentha spicata</em> were utilized. X-ray Diffraction (XRD), and UV–vis spectra were used to analyze AgNPs' crystal structure and shape. The antibacterial potency of E. coli ATCC 35218 was investigated utilizing AgNPs employing the well diffusion, MBC, MIC, and the time-kill curve. <em>Ocimum basilicum</em> water solution's dark yellow hue denotes the completion of the AgNPs' synthesis. As the aqueous <em>Ocimum basilicum</em> solution concentration increases between 0.25 and 0.75 mM, the AgNPs' UV spectra show a gradually increasing absorption. This, in turn, caused the nanoparticle size to alter from 73.57 to 89.05 nm and the wavelength to change from 468 to 474 nm. The experiments also revealed that the nanoparticles had a significantly antibacterial activity against <em>E. coli</em>, of the sample prepared with 1 mM <em>Ocimum basilicum</em>. Based on the synthesis of AgNPs, it has been shown that an aqueous extract of <em>Ocimum basilicum</em> outperforms <em>Mentha spicata</em> as a powerful reducing agent and stabilizing agent for the production AgNPs in various sizes. This is true regardless of the solvent content.</p></div>","PeriodicalId":21540,"journal":{"name":"Saudi Journal of Biological Sciences","volume":"31 1","pages":"Article 103899"},"PeriodicalIF":4.4,"publicationDate":"2023-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1319562X23003443/pdfft?md5=1b44757ff20cb79261716c3d417eca36&pid=1-s2.0-S1319562X23003443-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138581198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Morphological, molecular identification and evaluation of antioxidant activity of seahorses from the Moroccan coasts 摩洛哥海岸海马的形态、分子鉴定和抗氧化活性评估
IF 4.4 2区 生物学
Saudi Journal of Biological Sciences Pub Date : 2023-12-10 DOI: 10.1016/j.sjbs.2023.103898
Mohamed Rida Salam , Abdelkarim Ezaouine , Hasnae Zekhnini , Mariame El Messal , Fatiha El Mellouli , Fatima Chegdani , Faiza Bennis
{"title":"Morphological, molecular identification and evaluation of antioxidant activity of seahorses from the Moroccan coasts","authors":"Mohamed Rida Salam ,&nbsp;Abdelkarim Ezaouine ,&nbsp;Hasnae Zekhnini ,&nbsp;Mariame El Messal ,&nbsp;Fatiha El Mellouli ,&nbsp;Fatima Chegdani ,&nbsp;Faiza Bennis","doi":"10.1016/j.sjbs.2023.103898","DOIUrl":"10.1016/j.sjbs.2023.103898","url":null,"abstract":"<div><p>Seahorses, part of the small marine teleost fish family <em>Syngnathidae</em>, are increasingly under threat due to habitat degradation and overfishing. Notably used in traditional Chinese medicine, these fish have demonstrated significant pharmacological and cosmetic properties. In Morocco, however, seahorses are minimally exploited. This study aims to explore the biodiversity of Moroccan seahorses, focusing on identifying species from the Atlantic and Mediterranean coasts both morphologically and molecularly, and evaluating their antioxidant activity.</p><p>The research involved collecting 62 dried seahorses from local fishermen. These specimens were subjected to detailed morphological and molecular identification through the DNA barcoding method, concentrating on the mitochondrial marker Cytochrome Oxidase I (COI) gene. Following DNA extraction and amplification, the sequences were analyzed for species identification and phylogenetic relationships. Additionally, the antioxidant activities of the seahorses were quantified using assays such as ABTS, reducing power, phosphomolybdenum, and β-carotene-linoleic acid.</p><p>The combined morphological and molecular analyses consistently identified all specimens as <em>Hippocampus hippocampus</em>, and phylogenetic trees suggested a close relation with European and Turkish counterparts. Furthermore, the antioxidant assays revealed significant activity, with the ABTS assay showing an IC50 of 14.571 mg/mL ± 0.334, and the β-carotene-linoleic acid assay showing an IC50 of 1.273 mg/mL ± 0.166. The reducing power and phosphomolybdenum assays recorded EC50 values of 1.868 mg/mL ± 0.033 and 1.156 mg/mL ± 0.112, respectively. These results confirm the high antioxidant potential of Moroccan seahorses, suggesting their therapeutic value and necessitating measures for their biodiversity preservation at a national level.</p></div>","PeriodicalId":21540,"journal":{"name":"Saudi Journal of Biological Sciences","volume":"31 2","pages":"Article 103898"},"PeriodicalIF":4.4,"publicationDate":"2023-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1319562X23003431/pdfft?md5=5a9d89b583ce0ef1874ccbda5a0ac902&pid=1-s2.0-S1319562X23003431-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138559783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Vitamin E reduces oxidative stress in brains of male albino male rats undergoing immobilization 维生素 E 可降低白化雄性大鼠固定过程中大脑的氧化应激反应
IF 4.4 2区 生物学
Saudi Journal of Biological Sciences Pub Date : 2023-12-10 DOI: 10.1016/j.sjbs.2023.103900
Noorah Saleh Al-Sowayan , Reem Abdullah Almarzougi
{"title":"Vitamin E reduces oxidative stress in brains of male albino male rats undergoing immobilization","authors":"Noorah Saleh Al-Sowayan ,&nbsp;Reem Abdullah Almarzougi","doi":"10.1016/j.sjbs.2023.103900","DOIUrl":"10.1016/j.sjbs.2023.103900","url":null,"abstract":"<div><p>Stress can lead to various health problems. Exposure to stress is linked to several diseases including cancer, hypertension, diabetes, mental disorders, and heart attacks. Stress stimulates several pathways that produce free radicals, which increases oxidative stress. This results in functional and structural damage to organs, such as the brain, which is highly sensitive to oxidative stress Vitamin E is a naturally occurring potent antioxidant used for various purposes. The main purpose of the current study was to evaluate how vitamin E protects the brain and to what extent it affects antioxidant levels in rats subjected to two hours per day of immobilization stress, the form of stress with the strongest effect. The rats were immobilized by folding their limbs in and wrapping them in netting to prevent movement, while allowing their tails to be extended. The rats were then hung upside down. The effect of vitamin E was tested by intraperitoneally injecting rats with 40 mg/kg of vitamin E daily. Oxidative stress parameters were determined at the completion of the experiment. A dramatic decrease in malondialdehyde (MDA) levels and an increase in catalase (CAT), including glutathione peroxidase (GSH-Px) and superoxide dismutase (SOD), has been shown by vitamin E in the brain. The effects of vitamin E were significantly higher in the acute and chronic stress groups than in the control group. Vitamin E can decrease oxidative stress in stressed rats, indicating that it exerts therapeutic and protective effects owing to its antioxidant properties.</p></div>","PeriodicalId":21540,"journal":{"name":"Saudi Journal of Biological Sciences","volume":"31 1","pages":"Article 103900"},"PeriodicalIF":4.4,"publicationDate":"2023-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1319562X23003455/pdfft?md5=6ba840d1503324bc52e3c252c7c7568f&pid=1-s2.0-S1319562X23003455-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138563968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Isolation, characterization, and cloning of thermostable pullulanase from Geobacillus stearothermophilus ADM-11 从嗜热地衣芽孢杆菌 ADM-11 中分离、鉴定和克隆可恒温的纤维素酶
IF 4.4 2区 生物学
Saudi Journal of Biological Sciences Pub Date : 2023-12-10 DOI: 10.1016/j.sjbs.2023.103901
Dilara Abbas Bukhari , Zuhra Bibi , Arif Ullah , Abdul Rehman
{"title":"Isolation, characterization, and cloning of thermostable pullulanase from Geobacillus stearothermophilus ADM-11","authors":"Dilara Abbas Bukhari ,&nbsp;Zuhra Bibi ,&nbsp;Arif Ullah ,&nbsp;Abdul Rehman","doi":"10.1016/j.sjbs.2023.103901","DOIUrl":"10.1016/j.sjbs.2023.103901","url":null,"abstract":"<div><p>This study aimed to identify thermo-stable pullulanase-producing bacteria in soil samples of potato fields and food-producing companies. Pullulan agar medium was used to screen 17 bacterial strains, which were incubated at 65 °C. The isolate with the maximum activity (375U/ml) was selected and recognized as <em>Geobacillus stearothermophilus</em> ADM-11 by morphological, biochemical characterization, and 16S rRNA gene sequencing. The pullulanase production required optimum pH of 7 and temperature of 75 °C, respectively. The electrophoresis of purified pullulanase on SDS-polyacrylamide gel revealed 83 kDa of a molecular weight that is active at 70 °C and pH 7.0. It was also stable at 90 °C but its activity was decreased by 10 % at 100 °C. The action of pullulanase was increased and stabilized by Ca<sup>+2</sup> among the metal ions. Beta and gamma-cyclodextrins inhibited enzyme activity while ethylenediaminetetraacetate (EDTA) and phenylmethylsulfonyl fluoride (PMSF) have no significant effect on pullulanase activity. A full-length pullulanase gene was amplified from <em>G</em>. <em>stearothermophilus</em> ADM-11 using genomic DNA 2.1 kb of PCR product which was then purified and ligated in the cloning vector pTZ57R using the TA cloning technique. Colony PCR confirmed cloning on the positive clones after the pullulanase gene had been ligated and subjected to restriction digestion. It revealed 74 % similarity with the reported pullulanase gene from <em>Geobacillus</em> sp. 44C. The thermostability of pullulanase and its ability to degrade raw pullulan may therefore have wide-scale applications in starch processing, the detergent business, and new biotechnological applications.</p></div>","PeriodicalId":21540,"journal":{"name":"Saudi Journal of Biological Sciences","volume":"31 2","pages":"Article 103901"},"PeriodicalIF":4.4,"publicationDate":"2023-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1319562X23003467/pdfft?md5=f895cd2c301edfc105f2a87269727dff&pid=1-s2.0-S1319562X23003467-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138560083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Morphological, phytochemical and genetic characterization of Centella asiatica accessions collected throughout Vietnam and Laos 越南和老挝收集的积雪草的形态、植物化学和遗传特征
IF 4.4 2区 生物学
Saudi Journal of Biological Sciences Pub Date : 2023-12-03 DOI: 10.1016/j.sjbs.2023.103895
Hai Thi Hong Truong , Nhi Thi Hoang Ho , Han Ngoc Ho , Bao Le Quy Nguyen , Minh Hoang Duy Le , Thuy Thanh Duong
{"title":"Morphological, phytochemical and genetic characterization of Centella asiatica accessions collected throughout Vietnam and Laos","authors":"Hai Thi Hong Truong ,&nbsp;Nhi Thi Hoang Ho ,&nbsp;Han Ngoc Ho ,&nbsp;Bao Le Quy Nguyen ,&nbsp;Minh Hoang Duy Le ,&nbsp;Thuy Thanh Duong","doi":"10.1016/j.sjbs.2023.103895","DOIUrl":"10.1016/j.sjbs.2023.103895","url":null,"abstract":"<div><p>Pennywort (<em>Centella asiatica</em> L.) is commonly grown in the tropical world for its nutritional and medicinal values. Valuable saponins in pennywort are extensively investigated for their anti-tumour activities. The diversity in morphology, phytochemical contents and genetics among pennywort accessions has been extensively studied to identify elite landraces for large-scale production. While pennywort is widely consumed in Vietnam, a systematic characterization of their diverse morphology, secondary metabolites and genetics is lacking. In this work, 26 pennywort accessions were collected across Vietnam and Laos. Their morphological features and yields were characterized under uniform agro-climatic conditions at Hue city in central Vietnam. The highest yield was obtained with HUIB_CA20 (478 g per tray), compared to the lowest yield in HUIB_CA19 (107 g per tray). Furthermore, a range of phytochemical markers, including vitamin C, reducing sugar, carotenoid, tannin, phenolic, flavonoid and saponin contents, were determined. Based on yield, phenolic and flavonoid contents, HUIB_CA20 and HUIB_CA27 were determined to be elite cultivars in this germplasm. Finally, microsatellite analysis was performed to explore the genetic diversity within the germplasm. Using fourteen SSR primer pairs, a total of 47 alleles were identified with 45 alleles (96 %) being polymorphic. These results will be useful for breeding programs aiming to create elite pennywort cultivars with enhanced properties.</p></div>","PeriodicalId":21540,"journal":{"name":"Saudi Journal of Biological Sciences","volume":"31 1","pages":"Article 103895"},"PeriodicalIF":4.4,"publicationDate":"2023-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1319562X23003406/pdfft?md5=93b81d8a3333132cfbecc91c1a950d6c&pid=1-s2.0-S1319562X23003406-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138492623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信