|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Phytochemical and anti-bacterial activity of epidermal glands extract of Christella parasitica (L.) H. Lev.显示文摘Objective:To study the morphology,biochemistry and bioactivity of the epidermal glands of the glandular morphotype of Christella parasitica(C.parasitica)(L.) H.Lev.Methods: Morphological studies on epidermal glands were earned out by using light microscope and scanning electron microscope.To prepare the extract,the shade-dried fronds of glandular morphotype were soaked in acetone.For antibacterial studies paper disc method was followed by using various pathogenic bacteria.Results:Detailed micromorphological,phytochemical and bioactivity studies on a medicinal fern C.parasitica(L.) H.Lev.showed its inlraspecific variation in antibacterial activity.The presence or absence of the epidermal glands was the key factor for antibacterial activity in the morphovariants of this species.The epidermal glands were orange-coloured,stalked and elongated ones of about 84.2μm×45μm,and distributed on the undersurface of cosla,coslules and veins in croziers,young and mature leaves.Frequency of glands varied from 15/cm on costa in mature leaves to 140/cm on costules in croziers.The acetone extract of the glands showed antibacterial activities and also toxic effect against mosquito larvae and tadpoles of frog.Preliminary phytochemical analysis and HPLC studies of the gland extract showed the presence of various kinds of terpenoids,alkaloids,tannins,saponins and flavonoids in it.Conclusions:The present study shows that epidermal glands of the glandular morphotype of C. parasitica(L.) H.Lev.have several bioactive compounds and such rare moiphovariant should be conserved in nature.The next step is to isolate the pure compounds and to screen the bioactivity of individual compounds of the epidermal glands. | Paul Raj K Irudayaraj V Johnson M Patric Raja D | 2011 | Asian Pacific Journal of Tropical Biomedicine2011，1，1： | 14 |
| 2 | Antibacterial activity of leaves and inter-nodal callus extracts of Mentha arvensis L显示文摘Objective:To determine the anti-bacterial efficacy of chloroform,ethanol,ethyl acetate and water extracts of inter-nodal and leaves derived calli extracts from Mentha arvensis(M.arvensis) against Salmonella typhi(S.typhi),Streptococcus pyogenes(S.pyogenes),Proteus vulgaris(P. vulgaris) and Bacillus subtilis(B.subtilis).Methods:The inter-nodal and leaves segments of M.arvensis were cut into 0.5-0.7 cm in length and cultured on Murashige and Skoog solid medium supplemented with 3%sucrose,gelled with 0.7%agar and different concentration of 2,4-Dichlorophenoxyacetie acid(2,4-D) either alone or in combinations.The preliminary phytochemical screening was performed by Brindha et al method.Antibacterial efficacy was performed by disc diffusion method and incubated for 24 h at 37℃.Results:Maximum percentage of callus formation(inter-nodal segments 84.3±0.78;leaves segments 93.8±1.27) was obtained on Murashige and Skoog’s basal medium supplemented with 3%sucrose and 1.5 mg/L of 2,4-D.The ethanol extracts of leaves derived calli showed the maximum bio-efficacy than other solvents.The leaves and stem derived calli extracts on Proteus sp.showed that the plants can be used in the treatment of urinary tract infection associated with Proteus sp.Through the bacterial efficacy studies,it is confirmed that the in vitro raised calli tissue was more effective compared to in vivo tissue.Conclusions:The bio-efficacy study confirmed that the calli mediated tissues showed the maximum zone of inhibition.The present study paved a protocol to establish high potential cell lines by in vitro culture. | Johnson M Wesely EG Kavitha MS Uma V | 2011 | Asian Pacific Journal of Tropical Medicine2011，4，3： | 9 |
| 3 | 抗菌蜂蜜预防腹膜透析相关感染:一项随机对照试验显示文摘背景 目前缺少指导预防腹膜透析相关感染策略的研究证据。抗菌蜂蜜作为一种新型、廉价、有效的局部预防性使用的药物,不会诱导细菌耐药。因此,我们评估,对鼻内定植金黄色葡萄球菌的患者,与同时进行腹膜管外出口部位常规护理加上鼻内莫匹罗星去定植的方法相比,腹膜管外出口部位每日使用蜂蜜,是否会延迟首次出现腹膜透析相关感染的时间。 | Johnson D W Badve S V Pascoe E M 陈玉华 | 2014 | 中国感染控制杂志2014，13，2： | 7 |
| 4 | 柴油机排放控制回顾显示文摘详细综述了柴油机排放控制技术的最新发展现状。总结了柴油机颗粒的性质。回顾了将对过滤器的应用起重大作用的各种柴油机颗粒过滤器再生策略。阐述了过滤器的改型和耐久性问题。对柴油机的DeNO_x催化器、SCR(选择催化还原)、NO_x捕集器以及非热能等离子体等方法分别作了总结,并介绍了能同时降低NO_x和颗粒(PM)的系统。讨论了减少有毒废气排放的问题,还涉及了2000年美国和欧洲的所有有关重要会议的论文。 | Johnson T V 陆潇 马叶红 | 2002 | 国外内燃机2002，34，5： | 7 |
| 5 | Global surveillance of cancer survival 1995–2009: analysis of individual data for 25 676 887 patients from 279 population-based registries in 67 countries (CONCORD-2)显示文摘 | Claudia Allemani Hannah K Weir Helena Carreira Rhea Harewood Devon Spika Xiao-Si Wang Finian Bannon Jane V Ahn Christopher J Johnson Audrey Bonaventure Rafael Marcos-Gragera Charles Stiller Gulnar Azevedo e Silva Wan-Qing Chen Olufemi J Ogunbiyi Bernard R | 2015 | The Lancet . 2015 (9972)2015，，： | 2 |
| 6 | 汽油车排放——SAE 1999回顾显示文摘总结了1999年SAE各种会议上发表的有关汽油车排放控制的关键技术发展情况,内容包括综合解决措施、催化剂和载体、燃油含硫量限度和影响、颗粒物排放、直喷点燃式发动机的排放、壳体制作技术及蒸发排放。 | Johnson T V 丁贤华 | 2002 | 国外内燃机2002，34，1： | 2 |
| 7 | Disruption of sphingolipid homeostasis by myrioein, a myeotoxin, reduces thymie and splenic T-lymphocyte populations显示文摘 | Johnson V J He Q Osuchowski M F | 2004 | Toxicology2004，201，13： | 1 |
| 8 | Optimal Code Generation for Expression Trees显示文摘 | Steven C Johnson | 1976 | Journal of the ACM1976，23，3： | 1 |
| 9 | Micromachined,Planar-Geometry,Atmospheric-Pressure,Battery-Operated Microplasma Devices (MPDe) on Chips for Analysis of Microsamples of Liquids,Solids,or Gases by Optical-Emission Spectrometry显示文摘 | Karanassios V Johnson K Smith A T | 2007 | Analytical and Bioanalytical Chemistry2007，388，8： | 1 |
| 10 | Urinary diversions: A review of nursing care显示文摘 | Dixon L Wasson D Johnson V | 2001 | Urologic Nursing2001，21，5： | 1 |
| 11 | Arctic decadal and interdecadal variability显示文摘 | Polyakov I V Johnson M A | 2000 | Geophys Res Lett2000，27，24： | 1 |
| 12 | Diarrheagenic Escherichia coli infection in Baltimore, Maryland, and New Haven, Connecticut 显示文摘 | Nataro JP Mai V Johnson J | 2006 | Clin Infect Dis2006，43，4： | 1 |
| 13 | Extending postharvest life of green chilli pepper fruits with modified atmosphere packaging 显示文摘 | Edusei V O OfosuAnim J Johnson P N T et a/ | 2012 | Ghana Journal of Horticulture2012，10，： | 1 |
| 14 | Associa- tion of sTNF-R1 and the development of treatment-rela- ted symptoms in patients undergoing concurrent chemo- radiation therapy for colorectal or esophageal cancer显示文摘 | Wang X S Williams L A Johnson V E | 2009 | J Clin Oncol2009，6，8： | 1 |
| 15 | Can sharing affect liking? Online taste performances, feedback, and subsequent media preferences显示文摘 | Johnson B K Heide B V D | 2015 | Computers in Human Behavior2015，46，： | 1 |
| 16 | Radiosensitization of melanoma cell through combined inhibition of protein regulators of cell survival显示文摘 | Johnson G E Ivanov V N Hei T K | 2008 | Apoptosis2008，13，6： | 1 |
| 17 | The treatment of Wilson's disease with zinc:IX:Response of serum lipids显示文摘 | Brewer GJ Yuzbasiyan-Gurkan V Johnson V | 1991 | J Lab Clin Med1991，118，5： | 1 |
| 18 | Improving nitrogen use efficiency for cereal production显示文摘 | Ruan W R Johnson C V | 1999 | Agronomy Journal1999，91，： | 1 |
| 19 | Stanslas,Association of insertion/ deletion polymorphism of angiotensin-converting enzyme gene with essential hypertension and type 2 diabetes mellitus in malaysian subjects显示文摘 | Ramachandran V Ismail P Johnson S | 2008 | Journal of the Renin-Angiotensin-Aldosterone System2008，129，4： | 1 |
| 20 | The challenge of micropollutants in aquatic systems显示文摘 | SCHWARZENBACH R P ESCHER B FENNER K HOFSTETTER T B JOHNSON C A GUNTEN U V WEHRLI B | 2006 | Science2006，313，8： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员