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Isolation and molecular characterization of ginger soft rot pathogenic fungi in Aizawl district of Mizoram, India 印度米佐拉姆邦Aizawl地区生姜软腐病病原真菌的分离与分子鉴定
Science & Technology Vision Pub Date : 2018-12-31 DOI: 10.33493/SCIVIS.18.04.02
G. Rosangkima, Vanramliana, H. Lalthanzara, Lalringngheti, H. Lalramnghaki
{"title":"Isolation and molecular characterization of ginger soft rot pathogenic fungi in Aizawl district of Mizoram, India","authors":"G. Rosangkima, Vanramliana, H. Lalthanzara, Lalringngheti, H. Lalramnghaki","doi":"10.33493/SCIVIS.18.04.02","DOIUrl":"https://doi.org/10.33493/SCIVIS.18.04.02","url":null,"abstract":"Ginger soft rot disease caused by fungal pathogens have become one of the most serious problems causing reduced production around the world. It has also caused a major problem among farmers of Mizoram state in India resulting in a huge decline in rhizome yield. However, the exact causative agents of this disease have not been identified in the state. Therefore, the present study was undertaken to isolate and characterized the causative agents of ginger soft rot disease from the diseased plants collected from five different villages of Aizawl district, Mizoram. Isolated fungi were cultured and morphological and molecular identification were done using internal transcribed spacer of rDNA. Fusarium oxysporum, F. solani and Plectosphaerella cucumerina were identified in ginger samples from five villages. Fusarium spp. were the most common and seem to be the major causative agents. It is suggested that further investigation is required to explore the diversity of ginger soft rot pathogenic fungi in the whole state which could be helpful in introducing effective and eco-friendly disease management programme.","PeriodicalId":21329,"journal":{"name":"Science & Technology Vision","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72707697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Phytochemical screening and evaluation of antidepressant activity of methanolic extract of the spadix of Colocasia affinis Schott 番槐叶柄甲醇提取物的植物化学筛选及抗抑郁活性评价
Science & Technology Vision Pub Date : 2018-12-31 DOI: 10.33493/scivis.18.04.01
C. Lalremruati, C. Malsawmtluangi, H. Lalhlenmawia
{"title":"Phytochemical screening and evaluation of antidepressant activity of methanolic extract of the spadix of Colocasia affinis Schott","authors":"C. Lalremruati, C. Malsawmtluangi, H. Lalhlenmawia","doi":"10.33493/scivis.18.04.01","DOIUrl":"https://doi.org/10.33493/scivis.18.04.01","url":null,"abstract":"The objective of this study was to determine the phytoconstituents present in successive extracts and the antidepressant activity of methanolic extract of the spadix of Colocasia affinis. The preliminary phytochemical investigation indicated the presence of fats and fixed oils, steroids and triterpenoids in petroleum ether extract, steroids and triterpenoids in chloroform extract, flavonoids and tannins in methanol extract and carbohydrates in the aqueous extract. An in vivo test for antidepressant activity was performed on the methanolic extract of the plant at two different doses using force swim test and tail suspension test on an experimental animal model (rat). Imipramine was used as a standard drug for the study. The methanolic extract at 200 and 400 mg/kg, produced significant reduction (p<0.001) in the immobility period when compared with that of control group animals in both the tests. Thus, the result indicates that the methanolic extract exhibited significantly good antidepressant activity. Further investigation may be needed to understand the actual mechanism of action.","PeriodicalId":21329,"journal":{"name":"Science & Technology Vision","volume":"111 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82408392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Some phytochemical analyses of different extracts of the cogon grass Imperata cylindrica from Mizoram, India 印度米佐拉姆邦白茅不同提取物的植物化学分析
Science & Technology Vision Pub Date : 2018-12-31 DOI: 10.33493/SCIVIS.18.04.03
P. Lalthanpuii, Zarzokimi, K. Lalchhandama
{"title":"Some phytochemical analyses of different extracts of the cogon grass Imperata cylindrica from Mizoram, India","authors":"P. Lalthanpuii, Zarzokimi, K. Lalchhandama","doi":"10.33493/SCIVIS.18.04.03","DOIUrl":"https://doi.org/10.33493/SCIVIS.18.04.03","url":null,"abstract":"Cogon grass, Imperata cylindrica (L.) Räuschel, was studied for its flavonoid and phenol contents. A series of extracts of the underground (rhizome-root) parts was prepared by hot extraction using solvents of different polarities such as chloroform, methanol, and petroleum ether. The total flavonoid content of the plant extracts was determined based on the reaction with aluminum chloride, sodium nitrite, and sodium hydroxide. Quercetin was used as a standard reference. Chloroform extract showed highest content of flavonoids with 30.88 mg QE/g dry wt., followed by petroleum ether extract which was 22.05 mg mg QE/g dry wt., and methanol extract has the least value with 7.35 mg QE/g dry wt. The total phenolic content of the plant was estimated based on the reaction of Folin-Ciocalteu reagent using gallic acid as the standard reference. Again, the chloroform extract had the highest content with 7.54 mg GAE/g dry wt., while methanol extract contained 5.03 mg GAE/g dry wt., and petroleum ether extract contained 3.63 mg mg GAE/g dry wt. Our study shows that I. cylindrica is a good source of antioxidants.","PeriodicalId":21329,"journal":{"name":"Science & Technology Vision","volume":"50 43","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72390483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Diversity, distribution and conservation status of fish of the genus Garra (Cypriniformes: Cyprinidae) from the Kaladan drainage of Mizoram, northeastern India 印度东北部米佐拉姆邦卡拉丹流域加拉鱼属鱼类的多样性、分布和保护现状
Science & Technology Vision Pub Date : 2018-12-31 DOI: 10.33493/SCIVIS.18.04.04
B. Solo, Lalnuntluanga
{"title":"Diversity, distribution and conservation status of fish of the genus Garra (Cypriniformes: Cyprinidae) from the Kaladan drainage of Mizoram, northeastern India","authors":"B. Solo, Lalnuntluanga","doi":"10.33493/SCIVIS.18.04.04","DOIUrl":"https://doi.org/10.33493/SCIVIS.18.04.04","url":null,"abstract":"The present study was carried out on the diversity of fish under the genus Garra from the Kaladan River and its tributaries of Mizoram, northeast India. The study reported the occurrence of seven species viz. Garra flavatra, G. cf. koladynensis, G. cf. matensis, G. nigricolis, G. rakhinica, G. manipurensis and G. khawbungi. Key to Garra species from Kaladan River drainage of Mizoram and their brief descriptions are given.","PeriodicalId":21329,"journal":{"name":"Science & Technology Vision","volume":"61 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86626944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
In vitro antioxidant and preliminary phytochemical screening of methanolic extract of Macaranga denticulata (Blume) Müll.Arg. 黄芩醇提物体外抗氧化及植物化学初步筛选。
Science & Technology Vision Pub Date : 2018-09-30 DOI: 10.33493/scivis.18.03.02
R. Lalmuanawmi, Zothanpuia
{"title":"In vitro antioxidant and preliminary phytochemical screening of methanolic extract of Macaranga denticulata (Blume) Müll.Arg.","authors":"R. Lalmuanawmi, Zothanpuia","doi":"10.33493/scivis.18.03.02","DOIUrl":"https://doi.org/10.33493/scivis.18.03.02","url":null,"abstract":"Macaranga denticulata (Blume) Müll.Arg. (family Euphorbiaceae) is an evergreen tree and a common pioneer species in moist open and secondary forest. It is commonly known as Kharpa in Mizoram. Traditionally, the species of Macaranga are used in the treatment of swelling, cuts, sores, boils and bruises. Preliminary phytochemical screening and evaluation of in vitro antioxidant activity were carried out on the methanolic extract obtained from the bark of M. denticulata. The presence of alkaloids, tannins, flavonoids, saponins, steroids and triterpenoids was indicated by the tests conducted. The in vitro antioxidant activity was evaluated using 2, 2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity, reducing power and hydrogen peroxide radical scavenging activity. Ascorbic acid and butylated hydroxytoluene (BHT) were used as reference standards. The methanolic extract of the plant shows a strong antioxidant activity comparable to that of the reference standards.","PeriodicalId":21329,"journal":{"name":"Science & Technology Vision","volume":"62 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75940144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Some pharmacognostic studies of the cogon grass Imperata cylindrica from Mizoram, India 印度米佐拉姆邦白茅的生药学研究
Science & Technology Vision Pub Date : 2018-09-30 DOI: 10.33493/SCIVIS.18.03.03
P. Lalthanpuii, Zarzokimi, K. Lalchhandama
{"title":"Some pharmacognostic studies of the cogon grass Imperata cylindrica from Mizoram, India","authors":"P. Lalthanpuii, Zarzokimi, K. Lalchhandama","doi":"10.33493/SCIVIS.18.03.03","DOIUrl":"https://doi.org/10.33493/SCIVIS.18.03.03","url":null,"abstract":"Cogon grass Imperata cylindrica is a perennial grass belonging to the family Poaceae, and the rhizome-root portion of which is used for the treatment of bacterial infections, ringworms and other skin infections. Among the Mizo people they are directly consumed or juiced for the treatment of intestinal infection. Its chemical and biological properties are poorly documented. In this study, a methanol extract of the rhizome-root was prepared by hot extraction in a Soxhlet apparatus. Standard chemical tests were conducted. The presence of alkaloids, carbohydrates including reducing sugars, phytosterols, tannins, saponins and proteins were confirmed as the major bio-compounds. Free radical-scavenging activities were also determined. The plant extract indicated concentration-dependent scavenging activity on DPPH with an inhibitory concentration (IC50) of 2.14 µg/ml. H2O2 was similarly scavenged, in which the IC50 was 2.221 µg/ml. Our results suggest that I. cylindrica has important medicinal values.","PeriodicalId":21329,"journal":{"name":"Science & Technology Vision","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85167822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Photocatalytic degradation of methylene blue from aqueous solutions using nanopillars-TiO2 thin films: Batch reactor studies 纳米柱- tio2薄膜光催化降解水溶液中的亚甲基蓝:间歇反应器研究
Science & Technology Vision Pub Date : 2018-09-30 DOI: 10.33493/SCIVIS.18.03.01
C. Lalhriatpuia
{"title":"Photocatalytic degradation of methylene blue from aqueous solutions using nanopillars-TiO2 thin films: Batch reactor studies","authors":"C. Lalhriatpuia","doi":"10.33493/SCIVIS.18.03.01","DOIUrl":"https://doi.org/10.33493/SCIVIS.18.03.01","url":null,"abstract":"Nanopillars-TiO2 thin films was obtained on a borosilicate glass substrate with (S1) and without (S2) polyethylene glycol as template. The photocatalytic behaviour of S1 and S2 thin films was assessed inthe degradation of methylene blue (MB) dye from aqueous solution under batch reactor operations. The thin films were characterized by the SEM, XRD, FTIR and AFM analytical methods. BET specific surface area and pore sizes were also obtained. The XRD data confirmed that the TiO2 particles are in its anatase mineral phase. The SEM and AFM images indicated the catalyst is composed with nanosized pillars of TiO2, evenly distributed on the surface of the substrate. The BET specific surface area and pore sizes of S1 and S2 catalyst were found to be 5.217 and 1.420 m2/g and 7.77 and 4.16 nm respectively. The photocatalytic degradation of MB was well studied at wide range of physico-chemical parameters. The effect of solution pH (pH 4.0 to 10.0) and MB initial concentration (1.0 to 10.0 mg/L) was extensively studied and the effect of several interfering ions, i.e., cadmium nitrate, copper sulfate, zinc chloride, sodium chloride, sodium nitrate, sodium nitrite, glycine, oxalic acid and EDTA in the photocatalytic degradation of MB was demonstrated. The maximum percent removal of MB was observed at pH 8.0 beyond which it started decreasing and a low initial concentration of the pollutant highly favoured the photocatalytic degradation using thin films and the presence of several interfering ions diminished the photocatalytic activity of thin films to some extent. The overall photocatalytic activity was in the order: S2 > S1 > UV. The photocatalytic degradation of MB was followed the pseudo-first-order rate kinetics. The mineralization of MB was studied with total organic carbon measurement using the TOC (total organic carbon) analysis.","PeriodicalId":21329,"journal":{"name":"Science & Technology Vision","volume":"66 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76235085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
The saga of scrub typhus with a note on the outbreaks in Mizoram 丛林斑疹伤寒的传奇故事，并说明了米佐拉姆邦的疫情
Science & Technology Vision Pub Date : 2018-06-30 DOI: 10.33493/SCIVIS.18.02.01
K. Lalchhandama
{"title":"The saga of scrub typhus with a note on the outbreaks in Mizoram","authors":"K. Lalchhandama","doi":"10.33493/SCIVIS.18.02.01","DOIUrl":"https://doi.org/10.33493/SCIVIS.18.02.01","url":null,"abstract":"Scrub typhus is one the most important re-emerging infectious disease, and perhaps, the most important bacterial disease. Caused by Orientia tsutsugamushi, it is transmitted through the bite of mites belonging to the genus Leptotrombidium, in which the bacteria are obligate parasites. Though the mites are natural ectoparasites of rodents and other animals, in which there is no disease, opportunistic infection to humans gives rise to a serious disease. Known to Japanese physicians as tsutsugamushi (insect disease), human infection is caused by the larvae of trombiculid mites, the fact established by Mataro Nagayo and co-workers established in 1917. The pathogen was discovered by Naosuke Hayashi in 1920. In Mizoram, the disease has been rampant since 2011. This paper summarises available data on the prevalence of the infection in different districts base on collective information from various sources. Records between 2012 and 2018 show that over a thousand people had been infected and 35 people had died of the disease.","PeriodicalId":21329,"journal":{"name":"Science & Technology Vision","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84148921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Estimation of current population mean using two-occasion successive sampling with one auxiliary variable 用一个辅助变量的两次连续抽样估计当前总体均值
Science & Technology Vision Pub Date : 2018-06-30 DOI: 10.33493/SCIVIS.18.02.05
R. Zoramthanga
{"title":"Estimation of current population mean using two-occasion successive sampling with one auxiliary variable","authors":"R. Zoramthanga","doi":"10.33493/SCIVIS.18.02.05","DOIUrl":"https://doi.org/10.33493/SCIVIS.18.02.05","url":null,"abstract":"In this study, two-occasion successive sampling for ratio-to-regression estimator was used to determine the current estimate of the population mean using only the matched part and one auxiliary variable, which is available on both the occasions. The data used were based on the total number of female workers in villages in Mizoram with the total number of literate female in villages in Mizoram as an auxiliary variables. The data were gotten from Census of India 2001 and 2011. The optimum mean square error of the combined ratio-to-regression and ratio estimator has been compared with (i) the optimum mean square error of the chain-type ratio estimator (ii) mean per unit estimator and (iii) combined estimator when no auxiliary information is used at any occasion. This result showed that the combined ratio-to-regression and ratio estimator is more efficient than the other three existing estimators.","PeriodicalId":21329,"journal":{"name":"Science & Technology Vision","volume":"83 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83989114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparison of single and double entry twin cup dosimeter in measuring indoor radon and thoron concentration in Mizoram, India 单入口和双入口双杯剂量计在印度米佐拉姆邦测量室内氡和钍浓度的比较
Science & Technology Vision Pub Date : 2018-06-30 DOI: 10.33493/scivis.18.02.02
L. Chhangte, P. C. Rohmingliana, B. Sahoo, B. K. Sapra, Vanramlawma, Hmingchungnunga, Remlalsiama, Z. Pachuau, B. Zoliana
{"title":"Comparison of single and double entry twin cup dosimeter in measuring indoor radon and thoron concentration in Mizoram, India","authors":"L. Chhangte, P. C. Rohmingliana, B. Sahoo, B. K. Sapra, Vanramlawma, Hmingchungnunga, Remlalsiama, Z. Pachuau, B. Zoliana","doi":"10.33493/scivis.18.02.02","DOIUrl":"https://doi.org/10.33493/scivis.18.02.02","url":null,"abstract":"Indoor radon and thoron concentrations have been measured using solid state nuclear track detector (LR-115 type-ІІ) based twin cup dosimeter with single and double entry deployed side by side. The measurements have been carried out in 50 dwellings of 8 different villages/towns situated in Saiha and Lawngtlai districts, Mizoram. Dwellings were selected primarily from the gamma level measured using Micro-R survey meter and the construction type of the building. The average concentrations of radon and thoron were found to be 75.76 Bq/m3 and 96.50 Bq/m3 for single entry dosimeter and 63.47 Bq/m3 and 19.79 Bq/m3 for double entry dosimeter. The single entry dosimeter was found to give more reliable observations than that of double entry in terms of trends of seasonal data and also on the theory behind the manufacturing qualities.","PeriodicalId":21329,"journal":{"name":"Science & Technology Vision","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81764933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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