Eurasian Journal of Biosciences最新文献_第9页

The biochemical basis of shoot and fruit borer resistance in interspecific progenies of brinjal (Solanum melongena) 茄子(Solanum melongena)种间后代抗茎、果螟虫的生化基础

Eurasian Journal of Biosciences Pub Date : 2009-07-01 DOI: 10.5053/EJOBIOS.2009.3.0.7

M. Prabhu, S. Natarajan, D. Veeraragavathatham, L. Pugalendhi

引用次数: 26

Antimicrobial activity of Pleurotus eryngii var. ferulae grown on various agro-wastes 在不同农业废弃物上生长的阿魏侧耳的抑菌活性

Eurasian Journal of Biosciences Pub Date : 2009-07-01 DOI: 10.5053/EJOBIOS.2009.3.0.8

M. Akyüz, S. Kırbağ

引用次数: 81

Effect of leaf extracts of Dendrosicyos socotrana and Jatropha unicostata on the viability of Echinococcus granulosus protoscoleces 石斛和麻疯树叶提取物对细粒棘球蚴原头节活力的影响

Eurasian Journal of Biosciences Pub Date : 2009-07-01 DOI: 10.5053/EJOBIOS.2009.3.0.16

Abdul Kadir R. A. Barzinji, R. Mothana, A. Nasher

引用次数: 30

Early embryonic and larval development of Indian catfish, Heteropneustes fossilis 印度鲶鱼的早期胚胎和幼体发育，异鲶化石

Eurasian Journal of Biosciences Pub Date : 2009-07-01 DOI: 10.5053/EJOBIOS.2009.3.0.12

S. Puvaneswari, K. Marimuthu, R. Karuppasamy, M. Haniffa

引用次数: 74

Growth and carbon partitioning of two genotypes of bean (Phaseolus vulgaris) grown with low phosphorus availability 低磷条件下两种基因型菜豆的生长和碳分配

Eurasian Journal of Biosciences Pub Date : 2009-07-01 DOI: 10.5053/EJOBIOS.2009.3.0.3

T. Boutraa

{"title":"Growth and carbon partitioning of two genotypes of bean (Phaseolus vulgaris) grown with low phosphorus availability","authors":"T. Boutraa","doi":"10.5053/EJOBIOS.2009.3.0.3","DOIUrl":"https://doi.org/10.5053/EJOBIOS.2009.3.0.3","url":null,"abstract":"Production of the common bean (Phaseolus vulgaris) is often limited by the low availability of soil phosphorus (P). Bean genotypes differ in their P efficiency, dry matter production and partitioning under low P availability. Two genotypes of bean were used in this study cv. Carioca (CNF 0554) with indeterminate growth habit (GH) and small seeds and cv. Prince (commercially available) with a determinate GH and large seeds. Plants were grown in a solution culture with either a non-limiting or low P supply and harvested at two occasions to measure dry matter production (DM), DM partitioning, and growth parameters. The determinate genotype produced a higher DM than the indeterminate genotype, due to the larger seeds. At low P supply increased the root dry weight and decreased the leaf and stem dry weight. No effect was detected on the total DM. The DM partitioning follows the same pattern as DM production. Carioca invests less dry matter in the stem, and more dry matter in the root. Low P availability also reduced the leaf area (LA), leaf area ratio (LAR) and specific leaf area (SLA). Growth was affected differently between the genotypes by low P. There was a reduction in relative growth rates (RGR) and net assimilation rates (NAR) for Carioca, but no effect was found in Prince. A genetic variation for P response exists in bean genotypes with different growth habits.","PeriodicalId":11848,"journal":{"name":"Eurasian Journal of Biosciences","volume":"3 1","pages":"17-24"},"PeriodicalIF":0.0,"publicationDate":"2009-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5053/EJOBIOS.2009.3.0.3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70597262","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: 20

Biochemical compositions and antibacterial activities of Lantana camara plants with yellow, lavender, red and white flowers 黄、淡、红、白四种花的山楂植物的生化成分及抑菌活性

Eurasian Journal of Biosciences Pub Date : 2009-07-01 DOI: 10.5053/EJOBIOS.2009.3.0.10

D. Ganjewala, S. Sam, K. H. Khan

{"title":"Biochemical compositions and antibacterial activities of Lantana camara plants with yellow, lavender, red and white flowers","authors":"D. Ganjewala, S. Sam, K. H. Khan","doi":"10.5053/EJOBIOS.2009.3.0.10","DOIUrl":"https://doi.org/10.5053/EJOBIOS.2009.3.0.10","url":null,"abstract":"Here we report the biochemical composition and antibacterial activities of the leaves and flowers of four Lantana camara (Verbanaceae) plants with yellow, lavender, red, and white flowers. Three out of the four plants showed almost similar carbohydrates and lipid compositions. The levels of carbohydrates (mg/g dry weight) in the flowers were comparatively higher than in the leaves and the lipids content was relatively higher in the leaves except L. camara lavender and white. In lavender L. camara the amount of the total carbohydrates was very low. Proteins extracted from the leaves and flowers were subjected to electrophoresis. Electrophoresis of leaf proteins revealed similarity among L. camara yellow, red, and white flowers while that of flowers proteins showed similarity between L. camara yellow, lavender, red, and white. Extracts of leaves and flowers obtained with ethyl acetate were studied for antibacterial activities. Leaf and flower ethyl acetate extracts exhibited considerable antibacterial activities against the bacteria used where the value of zone of inhibition ranged from 10-21 and 9-15 mm, respectively. For flower and leaf ethyl acetate extracts, the zone of inhibition (mm) measured ranged from 10-21 and 9-15 mm, respectively. Thus, the study of the biochemical parameters viz., lipids, carbohydrates and proteins has revealed similarity among the four different L camara. However, antibacterial activities vary from one L. camara to the other and also according to the type of tissue used.","PeriodicalId":11848,"journal":{"name":"Eurasian Journal of Biosciences","volume":"3 1","pages":"69-77"},"PeriodicalIF":0.0,"publicationDate":"2009-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5053/EJOBIOS.2009.3.0.10","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70597035","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: 115

Survival of Escherichia coli and Acinetobacter junii at various concentrations of sodium chloride 大肠杆菌和朱尼不动杆菌在不同浓度氯化钠下的存活率

Eurasian Journal of Biosciences Pub Date : 2009-07-01 DOI: 10.5053/EJOBIOS.2009.3.0.18

J. Hrenović, T. Ivankovic

{"title":"Survival of Escherichia coli and Acinetobacter junii at various concentrations of sodium chloride","authors":"J. Hrenović, T. Ivankovic","doi":"10.5053/EJOBIOS.2009.3.0.18","DOIUrl":"https://doi.org/10.5053/EJOBIOS.2009.3.0.18","url":null,"abstract":"The survival of two heterotrophic bacteria in conditions of various concentrations of NaCl was tested. Both bacteria can commonly enter marine environments through sewage or wastewater treatment plant effluents; the Escherichia coli is a common enteric bacterium and Acinetobacter junii is a phosphate-accumulating bacterium inhabiting activated sludge. When cultivated in nutrient rich media (COD 8700 mg O2 L -1 ), both bacteria were multiplying during 72 h at concentrations of NaCl up to 5% for E. coli and 3.5% for A. junii. Total die-off of E. coli was detected at 72 h by NaCl concentration of 20%. Total die-off of A. junii was detected at 72 h by NaCl concentration of 10%. When the same bacteria were cultured in nutrient depleted media (COD 90 mg O2 L -1 ), the multiplication of E. coli stopped at 3.5% of NaCl and higher, but the cells were able to survive for longer period of time at extreme NaCl concentrations of 20 and 30%. The negative influence of NaCl to A. junii was pronounced in conditions of organic matter shortage and rapid die-off was observed at 3.5% of NaCl and higher. Both bacteria seemed to be osmotolerant when cultured in nutrient-rich media, but not in nutrient-depleted media.","PeriodicalId":11848,"journal":{"name":"Eurasian Journal of Biosciences","volume":"3 1","pages":"144-151"},"PeriodicalIF":0.0,"publicationDate":"2009-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5053/EJOBIOS.2009.3.0.18","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70597053","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: 52

Screening of biological activity of Zosima absinthifolia fruits extracts 苦艾果提取物的生物活性筛选

Eurasian Journal of Biosciences Pub Date : 2009-07-01 DOI: 10.5053/EJOBIOS.2009.3.0.4

S. Razavi, A. Ghasemiyan, Sakineh Salehi, Farahrouz Zahri

引用次数: 18

The function of the a-rich region of the alphasatellite associated with the cotton leaf curl disease in Pakistan 与巴基斯坦棉花卷叶病相关的α -卫星富a区功能

Eurasian Journal of Biosciences Pub Date : 2009-07-01 DOI: 10.5053/EJOBIOS.2009.3.0.19

M. Shahid, Liaqat Ali, S. Andleeb

{"title":"The function of the a-rich region of the alphasatellite associated with the cotton leaf curl disease in Pakistan","authors":"M. Shahid, Liaqat Ali, S. Andleeb","doi":"10.5053/EJOBIOS.2009.3.0.19","DOIUrl":"https://doi.org/10.5053/EJOBIOS.2009.3.0.19","url":null,"abstract":"A novel type of circular single stranded satellite-like DNA, known as alphasatellite (formerly known as DNA 1, was recently characterized and demonstrated to be associated with the monopartite Begomoviruses. Alphasatellite components are satellite like single stranded DNA (ssDNA) molecules associated with Begomoviruses (Geminiviridae) that require the betasatellite molecule to induce authentic disease symptoms in some hosts. Betasatellite is essential for induction of characteristic symptoms in plants. The function of alphasatellite in Begomovirus betasatellite infections remains unclear. It has been suggested that alphasatellite components may act to down regulate the virus infection by competing for cellular resources. Interestingly, they are closely related to the helper dependent Rep-encoding components of nanoviruses (a second family of single stranded, plant infecting DNA viruses), from which they are presumed to have been evolved. Alphasatellite molecules have two major sequence features. Firstly the component encodes a replication-associated protein (Rep), which is required to initiate the rolling circle replication. Consequently alphasatellite components are capable of self replication in host cells but require the helper Begomovirus to spread both within and between host plants. The second feature is a region of sequence rich in adenine (a-rich). To investigate the function of the a-rich sequence, this was deleted from the CLCuD alphasatellite by PCR mediated amplification. The a-rich deleted mutant of the alphasatellite remained capable of replication and systemic infection in plants, in the presence of a helper begomovirus. This indicates that the a-rich region is not required for replication or maintenance in plants.","PeriodicalId":11848,"journal":{"name":"Eurasian Journal of Biosciences","volume":"3 1","pages":"152-156"},"PeriodicalIF":0.0,"publicationDate":"2009-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5053/EJOBIOS.2009.3.0.19","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70597107","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: 6

The effect of regular intake of Terminalia chebula on oxidative stress in mice originated from Salmonella typhimurium 经常摄入慈心对鼠伤寒沙门菌小鼠氧化应激的影响

Eurasian Journal of Biosciences Pub Date : 2009-07-01 DOI: 10.5053/EJOBIOS.2009.3.0.15

K. H. Khan

{"title":"The effect of regular intake of Terminalia chebula on oxidative stress in mice originated from Salmonella typhimurium","authors":"K. H. Khan","doi":"10.5053/EJOBIOS.2009.3.0.15","DOIUrl":"https://doi.org/10.5053/EJOBIOS.2009.3.0.15","url":null,"abstract":"Typhoid is endemic and in most developing countries remains a public health problem. Due to an increasing resistance to antibiotics and the limited scope of the vaccine the requirement is to explore the efficacy of natural plant products in the treatment of this disease. In this study we have evaluated the aqueous extract of Terminalia chebula in connection with the oxidative stress generated in Swiss albino mice by Salmonella typhimurium. Mice pretreated through the oral route with the water extract of T. chebula at a dose of 500 mg/kg (T500) body wt for a period of 30 d exhibited a full protection against 1X10 5 Colony forming units (CFU) of S. typhimurium injected intraperitonially. Mice pretreated with T500 for a period of 30 d followed with 50000 CFU of S. typhimurium showed a decrease in Xanthine oxidase activity by 31% and an increase in both glutathione peroxidase and glutathione reductase activity by 25% as compared to the infected saline treated control. The reduction in the oxidative stress indicated the effectiveness of the drug against S. typhimurium which can also be used against typhoid.","PeriodicalId":11848,"journal":{"name":"Eurasian Journal of Biosciences","volume":"3 1","pages":"113-121"},"PeriodicalIF":0.0,"publicationDate":"2009-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5053/EJOBIOS.2009.3.0.15","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70596932","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: 23