期刊文献+
共找到7篇文章
< 1 >
每页显示 20 50 100
Potentially harmful metals,and health risk evaluation in groundwater of Mardan,Pakistan:Application of geostatistical approach and geographic information system 被引量:2
1
作者 Abdur Rashid Muhammad Ayub +7 位作者 Asif Javed Sardar Khan Xubo Gao Chengcheng Li Zahid Ullah Tariq Sardar Juma Muhammad Shahla Nazneen 《Geoscience Frontiers》 SCIE CAS CSCD 2021年第3期597-608,共12页
This study investigates the values of pH,total dissolved solids(TDS),elevation,oxidative reduction potential(ORP),temperature,and depth,while the concentrations of Br,and potentially harmful metals(PHMs)such as Cr,Ni,... This study investigates the values of pH,total dissolved solids(TDS),elevation,oxidative reduction potential(ORP),temperature,and depth,while the concentrations of Br,and potentially harmful metals(PHMs)such as Cr,Ni,Cd,Mn,Cu,Pb,Co,Zn,and Fe in the groundwater samples.Moreover,geographic information system(GIS),XLSTAT,and IBM SPSS Statistics 20 software were used for spatial distribution modeling,principal component analysis(PCA),cluster analysis(CA),and Quantile-Quantile(Q-Q)plotting to determine groundwater pollution sources,similarity index,and normal distribution reference line for the selected parameters.The mean values of pH,TDS,elevation,ORP,temperature,depth,and Br were 7.2,322 mg/L,364 m,188 mV,29.6℃,70 m,0.20 mg/L,and PHMs like Cr,Ni,Cd,Mn,Cu,Pb,Co,Zn,and Fe were 0.38,0.26,0.08,0.27,0.36,0.22,0.04,0.43 and 0.86 mg/L,respectively.PHMs including Cr(89%),Cd(43%),Mn(23%),Pb(79%),Co(20%),and Fe(91%)exceeded the guideline values set by the world health organization(WHO).The significant R^(2)values of PCA for selected parameters were also determined(0.62,0.67,0.78,0.73,0.60,0.87,-0.50,0.69,0.70,0.74,-0.50,0.70,0.67,0.79,0.59,and-0.55,respectively).PCA revealed three geochemical processes such as geogenic,anthropogenic,and reducing conditions.The mineral phases of Cd(OH)_(2),Fe(OH)_(3),FeOOH,Mn_(3)O_(4),Fe_(2)O_(3),MnOOH,Pb(OH)_(2),Mn(OH)_(2),MnO_(2),and Zn(OH)_(2)(-3.7,3.75,9.7,-5.8,8.9,-3.6,2.2,-4.6,-7.7,-0.9,and 0.003,respectively)showed super-saturation and under-saturation conditions.Health risk assessment(HRA)values for PHMs were also calculated and the values of hazard quotient(HQ),and hazard indices(HI)for the entire study area were increased in the following order:Cd>Ni>Cu>Pb>Mn>Zn>Cr.Relatively higher HQ and HI values of Ni,Cd,Pb,and Cu were greater than one showing unsuitability of groundwater for domestic,agriculture,and drinking purposes.The long-term ingestion of groundwater could also cause severe health concerns such as kidney,brain dysfunction,liver,stomach problems,and even cancer. 展开更多
关键词 GROUNDWATER Potential harmful metals Health risk indices Cluster analysis Mineral phases
下载PDF
Interaction Effect of Auxin and Cytokinin on in Vitro Shoot Regeneration and Rooting of Endangered Medicinal Plant Valeriana jatamansi Jones through Tissue Culture 被引量:1
2
作者 Urooj Nazir Zishan Gul +1 位作者 Ghulam Mujtaba Shah Nayyar Iqbal Khan 《American Journal of Plant Sciences》 2022年第2期223-240,共18页
Micropropagation of Valeriana jatamansi Jones by using small segments of rhizome on full strength MS medium having various concentrations and combinations of auxin Naphthaleneacetic acid (NAA) and cytokinin Benzylamin... Micropropagation of Valeriana jatamansi Jones by using small segments of rhizome on full strength MS medium having various concentrations and combinations of auxin Naphthaleneacetic acid (NAA) and cytokinin Benzylaminopurine (BAP) was conducted. The highest mean shoot length (3.71 cm) was achieved when media was fortified with BAP 2 mg/L in combination with NAA 1 mg/L. The highest mean leaf number i.e. 6.00 was observed when BAP was used alone at 2 mg/L. Average root length (0.77 cm) was recorded when BAP 1.5 mg/L along with NAA 0.5 mg/L was used. Maximum mean root numbers 2.57 were obtained when BAP and NAA were used at equal concentrations i.e. 1.5 mg/L. Observed data demonstrated that BAP up to 1 mg/L, 1.5 mg/L and 2 mg/L promotes shoot length, leaf number and leaf growth when used along with NAA at 0 mg/L, 0.5 mg/L and 1 mg/L. However lower quantities of both NAA (0 mg/L, 0.5 mg/L) and BAP (1 mg/L and 1.5 mg/L) produced significantly higher root length of Valeriana jatamansi Jones but the higher concentrations of plant growth hormones BAP (2 mg/L, 3 mg/L) and NAA (1 mg/L, 1.5 mg/L) were found unfavorable for increase in root length but the root number increases at higher concentration of NAA (1 mg/L and 1.5 mg/L). 展开更多
关键词 Valeriana jatamansi Medicinal Plant Tissue Culture NAA BAP
下载PDF
Ethnoveterinary medicines used against various livestock disorders in the flora of Shamozai Valley, Swat,KP Pakistan
3
作者 Noor Muhammad Muhammad Khalil Ullah Khan +3 位作者 Nisar Uddin Niaz Ali Shariat Ullah Muhammad Umer 《Traditional Medicine Research》 2020年第5期377-388,共12页
Background:The Shamozai Valley of Swat District is remarkable with various plant treasures.Ethnoveterinary information offers folk remedies for livestock,which are cheaper than standard treatment methods and are readi... Background:The Shamozai Valley of Swat District is remarkable with various plant treasures.Ethnoveterinary information offers folk remedies for livestock,which are cheaper than standard treatment methods and are readily available.Methods:Different trips were organized for gathering(harvesting)and recording medicinal plants in the area during 2018.A total of 140 local residents were interviewed.Then,the obtained data were evaluated using used value,relative frequency citations,fidelity level,consensus index,and informant consensus factor.Results:In this study,41 plants were presented,and these plants were used commonly as medication for treating various livestock ailments.The therapeutic plants with most used value were Artemisia scoparia(0.607),Berberis lyceum Royle(0.610),Bromus japonicus(0.491),Avena sativa(0.482),Cannabis sativa L.(0.473),Capsicum annum L.(0.471),Cedrus deodara(0.462),and Chenopodium murale(0.453).On the basis of relative frequency citations values,the most quoted plant species by the indigenous people are Artemisia scoparia(0.760),Berberis lyceum(0.742),Bromus japonicus(0.731),Avena sativa(0.721),and Cannabis sativa L.(0.711).Consensus index percentage showed the highest for Artemisia scoparia(83.109%),followed by Berberis lyceum Royle(80.454%),whereas the ethnomedicinal plant species with most fidelity level were Artemisia scoparia(76.320%),Berberis lyceum Royle(73.403%),Bromus japonicus(72.013%),Avena sativa(71.024%),Cannabis sativa L.(69.322%),Capsicum annum L(68.344%),Cedrus deodara(67.215%),and Chenopodium murale(66.060%)for various disorders.Informant consensus factor ranged from 0.947 to 1.000,whereas different ailments viz.appetite-causing agent,carminative treatment,eye diseases,mouth ulcers,myiasis,pediculosis,septicemia,and tick infestation had maximum informant consensus factor value.Conclusion:The publics of Shamozai are deeply reliant on ethomedicinal plants for treating numerous livestock ailments.Folk information always offers a baseline for further phytochemical and pharmacologic study. 展开更多
关键词 Ethnoveterinary practices Medicinal plants Folk knowledge Livestock ailments Shamozai Valley
下载PDF
Antimicrobial and Antioxidant Activities of Methanolic Extract and Fractions of <i>Epilobium roseum</i>(Schreb.) against Bacterial Strains
4
作者 Muhammad Ikram Niaz Ali +5 位作者 Gul Jan Farzana Gul Jan Muhammad Romman Muhammad Ishaq Yasir Islam Naeem Khan 《American Journal of Plant Sciences》 2021年第3期275-284,共10页
Present study aims to evaluate antimicrobial and antioxidant activities of the crude methanolic extract and different fractions of the <i><span style="font-family:Verdana;">Epilobium</span>... Present study aims to evaluate antimicrobial and antioxidant activities of the crude methanolic extract and different fractions of the <i><span style="font-family:Verdana;">Epilobium</span></i> <i><span style="font-family:Verdana;">roseum</span></i> <span style="font-family:Verdana;">(Schreb). The extract and fractions were used against pathogenic bacteria (</span><i><span style="font-family:Verdana;">Bacillus</span></i> <i><span style="font-family:Verdana;">subtilis</span></i><span style="font-family:Verdana;">, </span><i><span style="font-family:Verdana;">Bacillus</span></i> <i><span style="font-family:Verdana;">atrophaeus,</span></i> <i><span style="font-family:Verdana;">Klebsiella</span></i> <i><span style="font-family:Verdana;">pneumonia</span></i> <span style="font-family:Verdana;">and </span><i><span style="font-family:Verdana;">Pseudomonas</span></i> <i><span style="font-family:Verdana;">aeruginosa</span></i><span style="font-family:Verdana;">) and fungal strains (</span><i><span style="font-family:Verdana;">Aspergillus</span></i> <i><span style="font-family:Verdana;">niger</span></i><span style="font-family:Verdana;"> and </span><i><span style="font-family:Verdana;">Aspergillus</span></i> <i><span style="font-family:Verdana;">flavus</span></i><span style="font-family:Verdana;">). The methanolic extract and their sub fraction n-hexane showed a prominent inhibition zone against all bacterial strains but inactive against fungal strains. </span><span style="font-family:Verdana;">The various extracts of </span><i><span style="font-family:Verdana;">Epilobium</span></i> <i><span style="font-family:Verdana;">roseum</span></i> <span style="font-family:Verdana;">(Schreb) from various parts were tested for their antioxidant activity by</span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">1,1-Diphenyl-2-picryl-hydrazyl (DPPH) assay</span><span style="font-family:;" "=""><span style="font-family:Verdana;">. The IC</span><b><sub><span style="font-family:Verdana;font-size:12px;">50</span></sub></b><span style="font-family:Verdana;"> of the stem and root of methanolic extract and their sub fraction n-hexane showed best activity ranged between 22.73 ± 6.92, 21.49 ± 6.26 and 14.94 ± 3.54, 13.92 ± 1.04 μg/ml compared to another fraction. The results support that </span><i><span style="font-family:Verdana;">Epilobium</span></i> <i><span style="font-family:Verdana;">roseum</span></i> <span style="font-family:Verdana;">can be used as antimicrobial and antioxidant agents. The results support the present study that </span><i><span style="font-family:Verdana;">Epilobium</span></i> <i><span style="font-family:Verdana;">roseum</span></i> <span style="font-family:Verdana;">(Schreb) has a potential source of natural antibacterial, antifungal and antioxidant potentials.</span></span> 展开更多
关键词 Methanolic Extract Epilobium roseum DPPH n-Hexan Antioxidant Activity
下载PDF
Genetic Variation among Seedling of Pumpkins Genotypes through SDS-Page
5
作者 Muhammad Ikram Niaz Ali +3 位作者 Muhammad Ishaq Muhammad Romman Yasir Islam Naeem Khan 《American Journal of Plant Sciences》 2021年第5期711-719,共9页
Genetic diversity in 30 genotypes of Pumpkins <span style="font-family:Verdana;">was</span><span style="font-family:Verdana;"> collected from unexplored mountainous areas of Khybe... Genetic diversity in 30 genotypes of Pumpkins <span style="font-family:Verdana;">was</span><span style="font-family:Verdana;"> collected from unexplored mountainous areas of Khyber Pakhtunkhwa, Pakistan was investigated through biochemical characterization. For biochemical characterization, Sodium Dodecyl Sulphate Polyacrylamide Gel Electrophoresis was carried out. The seed proteins were resolved on 7.5% and 15% polyacrylamide gel. A total of 35% genetic disagreement was observed in the collected lines with linkage distances ranging from 0.00</span><span style="font-family:Verdana;"> - </span><span style="font-family:Verdana;">0.83 (percent disagreement). Similarly, cluster analysis sorted total germplasm on the basis of 12 bands (total bands) into eight clusters. Present study revealed a considerable amount of genetic diversity explored in pumpkin germplasm, Cluster analysis exhibited moderate level of genetic diversity;to broaden the gene pool. Further collection of the important germplasm is needed </span><span style="font-family:Verdana;">to be </span><span style="font-family:Verdana;">used in the development of improved cultivars with respect to quality and quantity.</span> 展开更多
关键词 Genetic Diversity SDS-PAGE PUMPKIN Cluster Analysis
下载PDF
A new record of Pluteaceae(Agaricales)from Pakistan
6
作者 Khan MB Ishaq M +4 位作者 Fiaz M Saba M Wenhua L Galappaththi MCA Khalid AN 《Studies in Fungi》 2021年第1期514-518,共5页
During a survey of agarics from the Himalayan moist temperate regions in Pakistan,a new record Volvariella taylorii was collected.Full description,color images of basidiocarps,drawings of microscopic features,and a ph... During a survey of agarics from the Himalayan moist temperate regions in Pakistan,a new record Volvariella taylorii was collected.Full description,color images of basidiocarps,drawings of microscopic features,and a phylogenetic tree to show the placement of the taxon are provided. 展开更多
关键词 PHYLOGENY pink gills TAXONOMY VOLVA Volvariella taylorii
下载PDF
Lentinus squarrosulus an edible macro-fungus reported from Pakistan
7
作者 Muhammad Ishaq Mahesh Chathuranga Abraham Galappaththi +3 位作者 Muhammad Binyamin Khan Shariat Ullah Muhammad Fiaz Abdul Nasir Khalid 《Studies in Fungi》 2022年第1期49-51,共3页
Lentinus squarrosulus(Mont.)Singer:an edible macro-fungus is reported from the moist temperate Himalayan forests of Pakistan.The sample was studied based on morphological characteristics and nucleotide sequence analys... Lentinus squarrosulus(Mont.)Singer:an edible macro-fungus is reported from the moist temperate Himalayan forests of Pakistan.The sample was studied based on morphological characteristics and nucleotide sequence analyses of the ITS region.Studies based on morpho-anatomical and molecular data are consistent with formerly reported specimens.Lentinus squarrosulus represents the first report for Pakistan. 展开更多
关键词 Lentinus Pakistan HIMALAYAN
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部