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841.
R.S. Sreerag S. Nishanth Kumar 《Archives Of Phytopathology And Plant Protection》2016,49(7-8):149-156
Rhizoecus amorphophalli is a polyphagous and very serious sucking insect pest on the root and tuber of plants. White powdery mealy substance associated with R. amorphophalli, gives protection to the insect. Mealy substance was isolated using a stereo zoom binocular microscope. Purity of the mealy substance was analysed using High-Performance Liquid Chromatography and Thin-layer chromatography. The structure of mealy substance was determined based on extensive spectroscopic analyses (FTIR, 1H NMR, 13C NMR). Based on the NMR data, the mealy substance was identified as a long-chained aliphatic hydrocarbon (ester) containing 30 carbon atoms. 相似文献
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843.
Chandrasekhar Gurramkonda Sulena Polez Natasa Skoko Ahmad Adnan Thomas Gäbel Dipti Chugh Sathyamangalam Swaminathan Navin Khanna Sergio Tisminetzky Ursula Rinas 《Microbial cell factories》2010,9(1):31
Background
The prevalence of diabetes is predicted to rise significantly in the coming decades. A recent analysis projects that by the year 2030 there will be ~366 million diabetics around the world, leading to an increased demand for inexpensive insulin to make this life-saving drug also affordable for resource poor countries. 相似文献844.
Glycine (50, 100 and 300 mg/kg), administered daily for 10 days in rabbits challenged with typhoid 'H' antigen and sheep erythrocyte antigen, caused dose- dependent reduction of antibody titre. Inhibition of antibody titre observed with 300 mg/kg was comparable to immunosuppression observed with 1 mg/kg betamethasone. 相似文献
845.
846.
Sheba M. J. Ignatius Jenq K. Huang Renu Khanna Chopra S. Muthukrishnan 《Journal of plant biochemistry and biotechnology.》1994,3(2):91-95
Chitinases (E.C.3.2.1.14) are thought to play an important role in the defense of plants against fungal invasion. By screening a barley genomic library with a previously identified chitinase eDNA clone (clone 10), a genomic clone was isolated and characterized by DNA sequencing of the chitinase coding region and flanking sequences. This clone contains an open reading frame capable of coding for a 34 kD chitinase. Comparison of the amino acid sequence of the encoded protein with other barley chitinases suggests that the genomic clone encodes chitinase T, which has been characterized extensively by protein sequencing. Treatment of barley leaves and aleurone protoplasts with N-acetyl glucosamine oligomers which act as elicitors in other plants, did not lead to the elevation of the levels of the chitinases. However, infection of barley seedlings with the powdery mildew fungus, Erysiphe graminis, resulted in the induction of several isoforms of chitinase. The level and number of chitinase isozymes was correlated with the severity of infection. The infection-related chitinases found in barley leaves are different from those found in seeds. 相似文献
847.
Archana Panikkar Corey Smith Andrew Hislop Nick Tellam Vijayendra Dasari Kristin A. Hogquist Michelle Wykes Denis J. Moss Alan Rickinson Henry H. Balfour Jr. Rajiv Khanna 《Journal of virology》2015,89(17):9137-9141
Here we present evidence for previously unappreciated B-cell immune dysregulation during acute Epstein-Barr virus (EBV)-associated infectious mononucleosis (IM). Longitudinal analyses revealed that patients with acute IM have undetectable EBV-specific neutralizing antibodies and gp350-specific B-cell responses, which were associated with a significant reduction in memory B cells and no evidence of circulating antibody-secreting cells. These observations correlate with dysregulation of tumor necrosis factor family members BAFF and APRIL and increased expression of FAS on circulating B cells. 相似文献
848.
Tiina Myyryläinen Sheikh M Talha Sathyamangalam Swaminathan Raija Vainionpää Tero Soukka Navin Khanna Kim Pettersson 《Journal of nanobiotechnology》2010,8(1):27
A highly specific and novel dual-label time-resolved immunofluorometric assay was developed exploiting the unique emission
wavelengths of the intrinsically fluorescent terbium (Tb3+) and europium (Eu3+) tracers for the simultaneous detection of human immunodeficiency virus 1 (HIV-1) and hepatitis B virus (HBV) infections,
respectively. HIV-1 infection was detected using a double antigen sandwich format wherein anti-HIV-1 antibodies were captured
using an in vivo biotinylated version of a chimeric HIV-1 antigen and revealed using the same antigen labeled with Tb3+ chelate. Hepatitis B surface antigen (HBsAg), which served as the marker of HBV infection, was detected in a double antibody
sandwich using two monoclonal antibodies (mAbs), one chemically biotinylated to capture, and the other labeled with Eu3+ nanoparticles, to reveal. The performance of the assay was evaluated using a collection (n = 60) of in-house and commercially
available human sera panels. This evaluation showed the dual-label assay to possess high degrees of specificity and sensitivity,
comparable to those of commercially available, single analyte-specific kits for the detection of HBsAg antigen and anti-HIV
antibodies. This work demonstrates the feasibility of developing a potentially time- and resource-saving multiplex assay for
screening serum samples for multiple infections in a blood bank setting. 相似文献
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