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Habitat Range of Four Atriplex Species Growing in the Mediterranean Coast of Egypt 生长在埃及地中海沿岸的四种鸢尾属植物的栖息地范围
Pub Date : 2024-07-22 DOI: 10.21608/sjdfs.2024.283721.1165
M. Serag, Abdelhamid A Khedr, Reham M. Nada, Nesma M El-Qashlan
Atriplex species are tolerant to salinity and drought, therefore; they are an appropriate for restoration of degraded arid and semi-arid lands. Lots of Atriplex species offer a high benefit as non-traditional forages as well. The purpose of this study is to evaluate the habitat range of four Atriplex species in the coastal area of the Mediterranean Sea of Egypt. Two of these species have C 3 photosynthesis; they are namely: A. portulacoides and A. prostrata and the other two are C 4 photosynthesis ( A. halimus and A. nummularia) . The four species are growing in the different habitats along the Mediterranean Coast from New Damietta to Burullus Lake. Associated species with Atriplex were determined and soil samples were collected to identify the types of habitats. Soil samples were analyzed to compare between C 3 and C 4 species on the basis of habitat. Results of soil analysis indicated that EC of the soil in which C 4 species grow is more than that of C 3 species and the percentages (%) of Cl - , CO 3 - and organic carbon of the soil in which C 4 species grow are more than that of C 3 species, moreover, the moisture content of the soil in which C 3 species grow is higher than that of the soil in which C 4 species grow. The obtained results from the soil variables will be useful for the understanding of the optimal habitat for C 3 and C 4 Atriplex species in the Mediterranean Coast of Egypt . Furthermore, the obtained data will help for the agro-application of these important halophytes .
鸢尾属植物耐盐碱和干旱,因此适合恢复退化的干旱和半干旱土地。许多 Atriplex 品种作为非传统饲料也具有很高的效益。本研究的目的是评估埃及地中海沿岸地区四种鸢尾属植物的栖息地范围。其中两个物种具有 C 3 光合作用,它们是portulacoides 和 A. prostrata),另外两个具有 C 4 光合作用(A. halimus 和 A. nummularia)。这四个物种生长在地中海沿岸从新达米埃塔到布拉鲁斯湖的不同栖息地。确定了与 Atriplex 相关的物种,并采集了土壤样本以确定栖息地类型。对土壤样本进行了分析,以根据栖息地对 C 3 和 C 4 物种进行比较。土壤分析结果表明,C 4 物种生长土壤的导电率高于 C 3 物种,C 4 物种生长土壤的 Cl -、CO 3 - 和有机碳百分比(%)高于 C 3 物种,此外,C 3 物种生长土壤的含水量高于 C 4 物种生长土壤的含水量。从土壤变量中获得的结果将有助于了解埃及地中海沿岸 C 3 和 C 4 Atriplex 树种的最佳栖息地。此外,获得的数据还有助于这些重要的卤叶植物在农业上的应用。
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引用次数: 0
The freshwater alga Chlorella sorokiniana tolerates salt stress via modulating metabolites and minerals 淡水藻类小球藻通过调节代谢物和矿物质耐受盐胁迫
Pub Date : 2024-07-21 DOI: 10.21608/sjdfs.2024.277971.1163
M. El-Adl, Mohammed Ali Deyab, Manar Mohammed Khafaga, Seham El-Sayed Abo Ahmed
Salinity stress is a laborious environmental stress for freshwater microalgae that can be overcame via modulating some physiological traits. This study assessed the impact of salt stress on growth and physiology of the freshwater alga Chlorella sorokiniana . The alga was exposed to salt concentrations of 0, 140, 270 and 340 mM NaCl in the BG11 basic growth medium with pH of 7.5 ± 0.20 for 43 d. Growth, in terms of the cell number, of Chlorella sorokiniana was progressively decreased with increasing salinity levels. Nevertheless, the salinity-induced reduction in the content of photosynthetic pigments (chlorophyll a, chlorophyll b and carotenoids) was most evident at 270 mM NaCl. Salinity led to progressive increase in the concentrations of protein, soluble sugars, starch and minerals (Na + and K + ) and lipids above the control. The present findings suggest that C. sorokiniana can withstand salinity stress up to 340 mM via enhancing production of lipids and compatible organic solutes such as proline with minor contribution of protein, soluble sugars and mineral ions (Na + and K + ) .
盐胁迫对淡水微藻来说是一种费力的环境胁迫,但可以通过调节某些生理特性来克服。本研究评估了盐胁迫对淡水藻类小球藻(Chlorella sorokiniana)生长和生理的影响。在 pH 值为 7.5 ± 0.20 的 BG11 基本生长培养基中,将该藻类暴露于 0、140、270 和 340 mM NaCl 的盐浓度中 43 d。然而,盐度引起的光合色素(叶绿素 a、叶绿素 b 和类胡萝卜素)含量减少在 270 mM NaCl 时最为明显。盐度导致蛋白质、可溶性糖、淀粉和矿物质(Na + 和 K +)以及脂质的浓度逐渐高于对照组。本研究结果表明,C. sorokiniana 可通过提高脂质和相容性有机溶质(如脯氨酸)的产量来承受高达 340 毫摩尔的盐度胁迫,而蛋白质、可溶性糖和矿物质离子(Na + 和 K + )的贡献较小。
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引用次数: 0
The Genus Acacia s.l. (Fabaceae) in Yemen 也门的金合欢属(豆科)植物
Pub Date : 2024-07-21 DOI: 10.21608/sjdfs.2024.277043.1162
Sami H. Rabei, Abdul Wali Al-Khulaidi, AbdelNasir AlJafri
The current study aims to update the list and revise the nomenclature of Acacia s.l ., one of the most widespread genera in Yemeni flora. The study was compiled by consulting a number of information sources, including relevant literature and online databases. According to recent molecular phylogenetic studies, Acacia s.l . is polyphyletic and the recognition of seven genera is strongly supported. Hence the classical identity of Acacia needs to be changed. Therefore, the current position of different Acacia taxa presents in Yemen (including six endemics, one near-endemic and four regionally endemics), which was formerly assigned in Acacia s.l ., has been transferred to Acacia s.s . Vachellia and Senegalia . This has resulted in six species of Acacias , fifteen species with 7 subspecies and 2 varieties in Vachellia and six species in Senegalia.
相思属是也门植物区系中分布最广的属之一,本研究旨在更新相思属的名录并修订其命名法。本研究参考了大量信息来源,包括相关文献和在线数据库。根据最近的分子系统发育研究,相思属(Acacia s.l .因此,金合欢的传统身份需要改变。因此,目前存在于也门的不同金合欢类群(包括 6 个特有种、1 个近特有种和 4 个地区特有种)以前归属于金合欢属,现已转入金合欢属。Vachellia 和 Senegalia。这样,金合欢就有了 6 个种,瓦切利娅有 15 个种,7 个亚种和 2 个变种,塞内加里亚有 6 个种。
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引用次数: 0
Microalgal Distribution in Relation to Water Quality at North Damietta, Egypt 埃及北达米埃塔微藻分布与水质的关系
Pub Date : 2024-07-21 DOI: 10.21608/sjdfs.2024.290594.1169
Mohammed Ali Deyab, M. El-Adl, Manar Mohammed Khafaga, Seham El-Sayed Abo Ahmed
This study aimed to display the microalgal distribution, diversity, and their relationship to water quality at ten selected stations (S1 to S10), North Damietta, Egypt. The water physicochemical parameters as well as the qualitative and quantitative investigations of microalgae were performed seasonally from Autumn 2021 to Summer 2022. Salinity values varied between 0.4 gL-1 at River Nile Dam (S6) to 400 gL-1 at Al-Diba pond (S10). The highest concentrations of ammonia and nitrite (3.7 mgL-1 and 0.5 mgL-1, respectively) were recorded at S1 while the highest concentration of nitrate (5.37 mgL-1) was estimated at S9. Although the orthophosphate concentrations were low, total phosphorus values were acceptable. A total of 137 microalgal taxa, belonging to 7 algal groups, were microscopically identified. Diversity index values indicated that the water status varied between mildly polluted at River Nile (S6) and heavily polluted water at stations 3, 5, 8, 9, and 10. The findings concluded that the species diversity decreases by increasing the pollution as well as increasing salinity. Furthermore, the results confirmed that high species diversity coincides with low dominancy and vice versa .
本研究旨在展示埃及北达米特十个选定站点(S1 至 S10)的微藻分布、多样性及其与水质的关系。从 2021 年秋季到 2022 年夏季,按季节对水的理化参数以及微藻的定性和定量进行了调查。尼罗河大坝(S6)的盐度值为 0.4 gL-1,Al-Diba 池塘(S10)的盐度值为 400 gL-1。S1 处的氨氮和亚硝酸盐浓度最高(分别为 3.7 mgL-1 和 0.5 mgL-1),而 S9 处的硝酸盐浓度最高(5.37 mgL-1)。虽然正磷酸盐浓度较低,但总磷值尚可接受。经显微镜鉴定,共有 137 个微藻类群,分属 7 个藻类群。多样性指数值表明,尼罗河(S6)的水质状况属于轻度污染,而 3、5、8、9 和 10 站的水质则属于重度污染。研究结果表明,随着污染程度和盐度的增加,物种多样性也在减少。此外,研究结果还证实,物种多样性越高,优势度越低,反之亦然。
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引用次数: 0
Protective and Therapeutic Effects of Moringa oleifera Leave Nanoparticles against Acrylamide-Induced Hepato and Renal Toxicity in Adult Male Rats. 油杉叶纳米颗粒对丙烯酰胺诱导的成年雄性大鼠肝肾毒性的保护和治疗作用
Pub Date : 2024-07-21 DOI: 10.21608/sjdfs.2024.288167.1166
A. Abduljalil, Kadry El-bakry, N. Omar, Lamiaa Elsayed Mokhtar Deef, Shereen A. Fahmy
Atriplex species are tolerant to drought and salinity, therefore; they are appropriate for restoration The study investigated the effects of acrylamide (ACR) on the liver and kidneys in rats and the potential protective and therapeutic properties of Moringa oleifera (M. oleifera ) leaf nanoparticles, using UV-visible spectroscopy to create and characterize silver nanoparticles. 20 adult male rats were randomly divided into four groups: Control group (CT); Acrylamide group (ACR): rats received 50 mg/kg b.wt. in drinking water for 3 weeks; Protection group (Mo-NPs /ACR): rats received 50 mg/kg b.wt. of M. oleifera nanoparticles (Mo-NPs) daily for 3 weeks and were given 50 mg/kg b.wt. of acrylamide (ACR) daily for 3 weeks; Treatment group (ACR/Mo-NPs): rats were given 50 mg/kg b.wt. of acrylamide (ACR) for 3 weeks, followed by M. oleifera nanoparticles (Mo-NPs) for 3 weeks. Blood and tissue samples were obtained for the physiological and histological investigations, and a comet assay was used to determine the amount of DNA damage. Administration of ACR increased MDA, creatinine, urea, ALT, and AST activities while decreasing SOD enzyme activity. M. oleifera nanoparticle treatment raised SOD enzyme activity and decreased the damaging effects of ACR on these levels. Rats with ACR injuries treated with M. oleifera nanoparticles had improved histological abnormalities in their liver and kidneys. Greater DNA damage was seen in the liver cells of the ACR group; however, M. oleifera nanoparticles may have repaired this damage in other groups. The study concluded that M. oleifera nanoparticles provide enhanced protection against ACR's effects on liver and kidney function in rats, potentially due to its diverse phytochemicals.
本研究调查了丙烯酰胺(ACR)对大鼠肝脏和肾脏的影响,以及油橄榄辣木(M. oleifera)叶纳米颗粒的潜在保护和治疗特性,并使用紫外可见光谱法创建和表征了银纳米颗粒。将 20 只成年雄性大鼠随机分为四组:对照组 (CT);丙烯酰胺组 (ACR):大鼠连续 3 周在饮用水中摄入 50 毫克/千克体重的丙烯酰胺;保护组 (Mo-NPs /ACR):大鼠连续 3 周每天摄入 50 毫克/千克体重的油橄榄叶纳米粒子 (Mo-NPs),并在饮用水中摄入 50 毫克/千克体重的丙烯酰胺。治疗组(ACR/Mo-NPs):每天给大鼠注射 50 毫克/千克体重的丙烯酰胺(ACR),连续 3 周,然后再注射油橄榄甲壳素纳米粒子(Mo-NPs),连续 3 周。研究人员采集了血液和组织样本进行生理和组织学研究,并使用彗星试验来确定 DNA 的损伤程度。服用 ACR 会增加 MDA、肌酐、尿素、谷丙转氨酶和谷草转氨酶的活性,同时降低 SOD 酶的活性。M. oleifera 纳米粒子处理可提高 SOD 酶活性,降低 ACR 对这些水平的破坏作用。用 M. oleifera 纳米粒子治疗 ACR 损伤的大鼠,其肝脏和肾脏的组织学异常有所改善。在 ACR 组的肝细胞中发现了更大的 DNA 损伤;不过,M. oleifera 纳米粒子可能修复了其他组的这种损伤。研究得出结论,M. oleifera 纳米粒子能增强保护作用,防止 ACR 对大鼠肝脏和肾脏功能的影响,这可能是由于它含有多种植物化学物质。
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引用次数: 0
Study of Photodegradation of Dianix Blue Dye for Commercial Industrial Wastewater in the Presence of Zeolite-TQD 沸石-TQD 存在下的商业工业废水滇尼蓝染料光降解研究
Pub Date : 2024-07-21 DOI: 10.21608/sjdfs.2024.289628.1168
Waleed M. Saad, W. Mohamed, Farid Sh. Mohamed, Ashraf elbendary
Pollutant removal is critical, as evidenced by the need for clean water, the rise in industrial effluent, and environmental pollution. One very efficient way to get rid of impurities from water and industrial effluent is to use zeolite removal. TiO 2 is one of the special photophysical characteristics of zeolite, which is distinguished by its numerous microscopic pores, high absorption capacity, and thermochemical stability. Sol-gel was used to synthesise zeolite and TiO 2 quantum dots (TQD) with diameters ranging from 307 to 48 nanometers. In this work, zeolite microparticles were treated with TiO 2 nanoparticles. The zeolite/TiO 2 composites were assessed using SEM, diffuse reflectance spectroscopy, Brunauer-Emmett-Teller, and X-ray diffractometer investigations. The results showed that the presence of TiO 2 nanoparticles reduces the specific surface area. However, it results in the ability to absorb ultraviolet rays. Increasing the amount of TiO 2 will cause the absorption edge to move. The photocatalytic properties of the compounds were evaluated using Blue Dianix dye removal analysis. Zeolite-TQD, with a specific surface area of 292.39 m 2 /g and a band gap energy of 3.57 eV, is the most effective material. Evidence of enhanced photocatalytic performance was obtained through analysis of spent chemical oxygen. We also confirmed the photodegradation rate of real industrial effluents using COD limitations specified in the Egyptian Environmental Law. Nine recycled zeolite-TQD samples were examined using COD measurements.
去除污染物至关重要,对清洁水的需求、工业废水的增加以及环境污染都证明了这一点。利用沸石去除水和工业废水中的杂质是一种非常有效的方法。TiO 2 是沸石的一种特殊光物理特性,其特点是微孔多、吸收能力强、热化学稳定性好。溶胶凝胶法用于合成沸石和 TiO 2 量子点(TQD),其直径在 307 纳米到 48 纳米之间。在这项工作中,沸石微粒与 TiO 2 纳米粒子一起处理。使用扫描电子显微镜、漫反射光谱仪、布鲁瑙尔-艾美特-泰勒和 X 射线衍射仪对沸石/TiO 2 复合材料进行了评估。结果表明,TiO 2 纳米颗粒的存在降低了比表面积。然而,它却增强了吸收紫外线的能力。增加 TiO 2 的含量会使吸收边缘移动。利用蓝黛安染料去除分析评估了化合物的光催化特性。沸石-TQD 的比表面积为 292.39 m 2 /g,带隙能为 3.57 eV,是最有效的材料。通过分析废化学氧,我们获得了光催化性能增强的证据。我们还根据埃及环境法规定的 COD 限制值,确认了实际工业废水的光降解率。我们使用 COD 测量方法对九种回收的沸石-TQD 样品进行了检测。
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引用次数: 0
Effect of treatment with Cyproheptadine and Artemisia absinthium on insulin level of Zinc-Deficient Diet rats 赛庚啶和苦艾蒿对缺锌饮食大鼠胰岛素水平的影响
Pub Date : 2024-07-21 DOI: 10.21608/sjdfs.2024.280182.1164
S. S. el-naeli, K. Elbakry, M. Behnasawy, Lamiaa Elsayed Mokhtar Deef, O. A. Ahmed-Farid
The effect of Artemisia absinthium and Cyproheptadine on the insulin levels of rats fed on a diet deficient in zinc was examined in the current study. Thirty-two mature male rats were divided randomly into four groups each of eight animals. Control Group (G1), Zinc Deficiency Group (ZDD) (G2), Zinc Plus Cyproheptadine Group (G3), and Zinc Plus Artemisia absinthium Group (G4). Zinc, Cyproheptadine and Artemisia absinthium were taken orally (containing zinc not more than 1mg/kg diet, 720 µg/kg B. W, 100 mg/kg BW) for 30 days. Insulin level and histopathological study were done. The data showed that feeding rats on a zinc deficient-diet (ZDD) resulted in decrease of insulin level compared to the control group. On the other hand, the Cyproheptadine (CH) and Artemisia absinthium (ART) treatment groups exhibited improvement of insulin level compared to zinc deficiency diet feeding group. In addition, zinc deficient-diet (ZDD) showed mild fatty liver with hepatic steatosis and macrovesicular steatosis. After treatment with cyper and Art, liver of both groups are tissue improved significantly. Treatment with artemisia absinthium (ART) and cyproheptadine (CH) of rats feed on a diet deficient in zinc, increases insulin levels and improve liver tissue histology.
本研究探讨了苦艾蒿和赛庚啶对以缺锌饮食喂养的大鼠胰岛素水平的影响。32 只成年雄性大鼠被随机分为四组,每组 8 只。对照组(G1)、缺锌组(ZDD)(G2)、锌加赛庚啶组(G3)和锌加苦艾蒿组(G4)。连续 30 天口服锌、赛庚啶和苦艾(含锌量不超过 1 毫克/千克食物,720 微克/千克体重,100 毫克/千克体重)。对大鼠进行了胰岛素水平和组织病理学研究。数据显示,与对照组相比,缺锌饮食(ZDD)导致胰岛素水平下降。另一方面,与缺锌饮食组相比,赛庚啶(CH)和苦艾(ART)治疗组的胰岛素水平有所改善。此外,缺锌饮食组(ZDD)出现轻度脂肪肝,伴有肝脏脂肪变性和大泡性脂肪变性。在使用香附和青蒿治疗后,两组的肝脏组织均有明显改善。用苦艾(ART)和赛庚啶(CH)治疗缺锌饮食的大鼠,可提高胰岛素水平并改善肝组织学。
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引用次数: 0
Contribution to the Flora of Egypt: A critical inventory of newly recorded vascular taxa of Egypt 对《埃及植物志》的贡献:埃及新记录的维管束类群重要清单
Pub Date : 2023-12-20 DOI: 10.21608/sjdfs.2023.247544.1141
E. Shamso, H. Hosni, Amal hosny, Sami Rabei, Ibrahim Elgamal
The current study is the first attempt to provide a comprehensive inventory of all newly recorded vascular plant taxa which were collected from Egypt after Boulos’ Checklist 2009. The study was compiled by gathering several information sources such as relevant taxonomic publications, accessible online database, herbaria collections and field observations. The present study records 441 species and infraspecific taxa (309 species, 72 subspecies and 60 varieties) belonging to 83 families and 275 genera, representing 66 Monocots and 375 Eudicots. The study revealed the addition of five species viz. Ficus religiosa , F . elastica, Vigna vexillata, Sagittaria sagittifolia and carpobrous edulis ; as well as nine families not previously recorded in the flora of Egypt. Amongst the taxa recorded,22 endemics in ten families and 23 near endemics in 15 families. The inventory of newly recorded taxa made in the present study confirms that the Egyptian flora requires significant updating, and this study might be regarded as a supplementary to Boulos’ Flora of Egypt Checklist (2009), the authors also believe that the present checklist has filled the gaps existing in the data at the sub-regional administrative scale.
目前的研究是首次尝试对 2009 年布洛斯核对表之后在埃及采集到的所有新记录维管植物分类群进行全面清点。本研究收集了多个信息来源,如相关的分类学出版物、可访问的在线数据库、标本馆藏品和实地观察结果。本研究记录了 441 个种和种下分类群(309 个种、72 个亚种和 60 个变种),隶属于 83 科 275 属,代表 66 种单子叶植物和 375 种真叶植物。研究显示,埃及植物区系中新增了 5 个物种,即 Ficus religiosa、F. elastica、Vigna vexillata、Sagittaria sagittifolia 和 carpobrous edulis,以及 9 个以前未记录的科。在记录的分类群中,有 10 个科 22 个特有种,15 个科 23 个近特有种。本研究中新记录的分类群清单证实,埃及植物区系需要大量更新,本研究可被视为布洛斯的《埃及植物区系清单》(2009 年)的补充,作者还认为本清单填补了次区域行政范围内现有数据的空白。
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引用次数: 0
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Scientific Journal for Damietta Faculty of Science
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