MP14:

Germination of N.sativaseeds

Cytotoxicity assay by Sulphorhodamine B (SRB) me

Germination of N. sativaseeds

Activation of TLC plate

Tests for Alkaloids

Germination of N.sativaseeds

Testing of bioformulations

Sequence analysis

DNA sequencing of the 18S rDNA fragment

Purification of PCR product

Analysis of internal transcribed spacer region

RAPDand SSRscoring and data analysis

PCR amplification

Running of gel and visualization of DNA

Determination of the yield

Agarose gel electrophoresis

Qualitative and quantitative estimation of DNA

Determination of the yield

Procedure for DNA isolation

Reagents required for fungal DNA isolationand p

DNA isolation of Trichodermaisolate

Genetic variability analysis through RAPD and SSR

Photography, evaluation and documentation

Procedurefor SDS-PAGE

Materialsrequired for SDS-PAGE

Protein profiling of bioagent through SDS-PAGE

Active site prediction and docking study

Superposition of predicted structure and template (Dof

Validations

Three dimensional structure prediction, refinements and evaluation of Dof proteins

Cis-regulatory element analysis

Mapping of SbDof genes on sorghum chromosomes and its intron/exon gene structure prediction

In silico prediction of Dof gene family members in S. bicolor (L

Motif identification

Multiple sequence alignment and phylogenetic analysis

In silico analysis of sequenced Dof domain and Dof genes

Reaction resuspension

Post-reaction clean up

Sequencing PCR

Sequencing reaction

Digestion of Plasmid DNA

Minipreparation of plasmid DNA from transformed co

Screening of recombinant E. coli clone

Transformation of ligation mixture in electro-competent E. coli host cells (DH5ααααstrain)

Transformation of ligated product in chemically competent E. coli host cells (DH5αααα strain)

Ligation reactions

Dephosphorylation of vector

Restriction digestion

Ligation of eluted PCR product in pBSK vector

Cloning of gel eluted PCR produc

Gel elution of PCR Produ

Scoring of amplification data points and construction of a den

Analysis of PCR amplicons using agarose gel electrophoresis

Cycling condition

PCR reaction set up

Basic requirements for PC

PCR amplification of Dof domain and Dof genes from different

Primer designing for PCR amplification of Dof domain and D

Qualitative analysis of DNA by agarose gel electrophoresi

Spectrophotometric quantification of genomic DNA

DNA purification

DNA extraction procedure

Isolation of genomic DNA by CTAB method

Nitrite production in macrophages of hamsters

Animals

Overexpression and Purification of recombinant protein (rLdTP

Clone confirmation

Colony PCR

Transformation

Assay for Lipid peroxidase(LPO)

Cytomorphological analysis

Growth kinetic studies

Reducing power assay

TEM-EDAX analysis

Qualitative analysis of compounds

The Posterior Probability of Mixing Dis-tribution

Algorithm

EM Procedure

Poisson Mixture

Data Sources

Poisson Model

Haemolymph protein profiling

Lactate dehydrogenase

VS preparation

Statistical analysi

Quantification of VS for protein

Venomous saliva utilization

Prey type

Starvation and collection method

Venomous saliva optimization

Insects Collection

Head and stylet preparation

Micronuclei test

Malic dehydrogenase

Alkaline Phosphatase

Glycogen content

Analysis of Physico-chemical parameters of the water sampled

Experimental Set up

Soil pH and electrical conductivity (EC)

Experiment 2: Assessing the impacts of elevated temperature and N levels on yield and nutrient uptake in rice

Experiment 1: Assessing the impacts of elevated CO2and N levels on yield and nutrient uptake in rice

Experimental Design and Treatments

Temperature Gradient Tunnels (TGT)

Kernel hardness

SDS-sedimentation test

Estimation of total N% of wheat grainsand straw

End use Quality parameters

Chlorophyllcontent

Root length (cm) and Root weight (mg)

Coleoptile length(cm)

Stomata / cm2

Leaf area index (LAI)

Physiological parameters

Laboratory observations

Days to physiological maturity

Static and shaken condition

Screening for proteolytic activity

Sample Collection

1X TBS

Immunofluorescence

Transfection of short interfering RNA (siRNA) and plasmid

Mice

Extraction of Tannin

Extraction

Procedure

Standard curve of sugar

Extraction and determination of protein

Standard curve of protein

Reagents

Estimation of protein

Standard curve of ascorbic acid

Fresh and Dry weight

Dilution Formula

Cd (NO3)2

ZnSO4

Preparation of ppm solution

Preparation of ultra competent E. coli

Monoclonal Antibodies against the Human Glycophorin-

Isolation of endothelial cells from rat aorta

Procedur

Procedur

Procedure

Procedure

Reagent

Total antioxidant activit

Procedur

Catalyst Preparation

Catalyst Preparation

Total dissolved solids

High Performance Liquid Chromatography (HPLC) analysis

High Performance Thin Layer Chromatography (HPTLC) analysis

. Thin Layer Chromatography (TLC) analysis

Preliminary phytochemical screening (Ali, 1998; Evans, 2002)

Microbial Contamina

Foaming Index

pH values

Ash values

Extractive value

. Physico-chemical standardization

Standardization of ethanolic extract of E.ribes (WHO, 1998; IndianPharmacopoeia, 1996)

Estimation of Stevioside

Estimation of Steviol

Estimation of total phenols

Balanced mesomorph:

The [3-PMB and a-PMB chains were eluted with a linear gradient of 500 ml each of 0.01 M potassium phosphate buffer (pH 6.5) and 0.015 M potassium phosphate buffer (pH 8.5) at a flow rate of 50 ml/hour. The chains were separately concentrated using Centriprep concentrators (Amicon) and stored in liquid nitrogen till further use

The heme bound a and ~ subunits were obtained as described by Bucci (1981 ). Briefly, hemoglobin was reacted with PMB in an eight fold molar excess (8 moles of PMB per mole of hemoglobin). The reaction mixture was dialyzed extensively against 0.01 M potassium phosphate buffer (pH 6.5) and then loaded onto a CM52 column (30cm x !Scm) that was pre-equilibrated with the same buffer.

Separation of the a and f3 subunits of hemoglobin

1X PBS diluted in distilled water 1X fixative solution diluted in distilled water 2.4.12.3 Staining Solution25 μl Solution A 25 μl Solution B 25 μl Solution C 125 μl 20 mg/ml X-gal in DMF

Working Solutions:

Procedure:

β- galactosidase assay was performed in a 96 well format. Briefly, 4000-5000 cells were plated in 96 well tissue culture coated plate. Cells were transfected with reporter plasmid after 18 -24 hrs and after 48 hrs the cells were washed once with D-PBS. 50μl of lysis buffer was added to the well and cells were lysed by freezing plate at -70°C and thawing at 37°C. Cells were pipette up and down and then the plate was centrifuged at 9000 X g for 5 minutes. The supernatant from each plate was transferred to clean eppendorf tube. Immediately prior to assay the ONPG cocktail was prepared as below: 47 μl 0.1 M sodium phosphate (pH 7.5)22 μl 4 mg/ml ONPG1 μl 100X Mg solution30μl of each well extract was added to microtitre well plate and70μl of ONPG cocktail was added to each well. The plate was kept on ice throughout the procedure. After addition of ONPG cocktail the plate was transferred to 37°C and the development of colour was monitored every 10 minutes for development of color. After development of yellow colour, the reaction was stopped by addition of 150μl of 1M sodium carbonate to each well

ethanol has dried. The pellet was resuspended in 20 μl of milliQ water and 20 μg/ml RNase added. The tube was incubated at 50°C for 45 min. the tube was vortexed for few seconds. Quality of the plasmid DNA was then accessed by running 1% agarose gel.

Overnight Grown culture was pelleted by centrifugation at 10,000g at 4°C for 3 min and the supernatant was discarded. Pellet was resuspended in 250 μl of ice-cold alkaline lysis solution 1. 300 μl of alkaline solution 2 was then added and the tube was inverted gently 3-4 times and incubated at room temperature for 5 min. 350 μl of ice cold solution 3 was added and mixed by inverting the tube rapidly for 3 or 5 times. Suspension was incubated on ice for 10 min. Bacterial lysate was spun at 10,000g for 12 min at 4°C. Supernatant was transferred to a fresh tube. 0.4 volume of phenol: chloroform was added to the supernatant and the contents mixed. It was then spun at 10,000g at 4°C for 12 min. Aqueous phase was taken out in a fresh tube and 0.6 volume of isopropanol was added, mixed properly and incubated at room temperature for half an hour followed by spinning at 10,000g at RT for 20 min. Supernatant was discarded. Pellet was washed with 70% ethanol. The tube was stored at room temperature until the

Preparation of Plasmid DNA by alkaline lysis

1μl of the cell lysate was mixed with 200 μl of 5X Bradford reagent and 800 μl of water. O.D was measured at 595 nm. Standard curve of BSA was plotted using various dilutions of BSA protein by Bradford method. Protein estimation of the cell lysate samples was performed using the standard curve equation y=0.0695x + 0.0329 μg/μl

Protein estimation by Bradford method

Overnight cell culture raised in LB medium was subcultured 1:100 in LB with 20 mM MgCl2. When the A600 reached 0.4-0.6, the culture was centrifuged at 2800g for 5 min at 4 ̊C. To the cell pellet 0.4 volumes of ice-cold TBF-I buffer was added and incubated on ice for 15 min. The cell suspension was centrifuged at 2800g for 5 min at 4 ̊C and the cells recovered were dissolved in 0.04 volume of ice-cold TBF-II buffer and kept on ice for 45 min. 100 μl aliquots of these competent cells were used for transformation using the normal transformation protocol

TBF method for preparation of high competency cells

Quiagen/HiPura following the manufacturer's protocols

The rapid alkaline lysis method of plasmid isolation, as described by Sambrook and Russel (2001), was followed with minor modifications. Bacterial pellet from 3 ml of stationary-phase culture was resuspended in 200 μl of ice-cold solution I (50 mM glucose, 25 mM Tris-Cl pH 8.0, 10 mM EDTA pH 8.0 containing 1 mg/ml lysozyme) by vortexing. After 5 min incubation at room temperature, 400 μl of freshly prepared solution II (0.2 N NaOH, 1% SDS) was added and the contents were mixed, by gently inverting the tube several times. This was followed by the addition of 300 μl of ice-cold solution III (5 M potassium acetate, pH 4.8) and gentle mixing. The tube was incubated on ice for 5 min and centrifuged at 20,0000g for 15 min at 4°C. The clear supernatant was removed into a fresh tube and, if required, was extracted with an equal volume of phenol:chloroform mixture. The supernatant was precipitated with either two volumes of cold 95% ethanol or 0.6 volumes of isopropanol at room temperature for 30 min. The nucleic acids were pelleted by centrifugation, washed with 70% ethanol, vacuum dried, and dissolved in appropriate volume of TE buffer. If required, the sample was treated for 30 min with DNase free RNase at a final concentration of 20 μg/ml. The plasmid DNA was checked on a 0.8% agarose gel and stored at −20°. The plasmid DNA thus isolated was suitable for procedures such as restriction digestion, ligation, and preparation of radiolabeled probes. Plasmid isolation was also done with any of the commercially available kits from

Isolation of plasmid DNA

dependent transcription termination within the untranslated region of trpE. Anthranilate is a precursor of tryptophan, which is the product of trpE-encoded anthranilate synthase. Therefore, in trpE(fs) strains, growth on minimal glucose plates supplemented with anthranilate (100 μg/ml) reflects transcriptional polarity relief at the trp locus, and the same was scored after streaking the relevant strains on such medium

The trpE9777 is a frameshift (fs) mutationconfers Trp auxotrophy and also polarity on the downstream trpDCBA genes in the operon due to premature Rho-

trpE(fs) assay

This test was therefore used for two purposes: (i) to distinguish relA+ from relA− strains, and (ii) as a qualitative measure of transcriptional polarity relief at the ilv locus. Growth in the presence of amino acids Serine, Methionine, and Glycine (SMG) was scored on glucose-minimal A plates supplemented with each of the amino acids at 100 μg/ml and compared with the growth on non-supplemented glucose-minimal A plates to score for SMG phenotype

The E. coli relA mutants exhibit SMG-sensitive (SMGS) phenotype i.e. growth-inhibition in the presence of Serine, Methionine and Glycine at 1 mM concentration each (Uzan and Danchin, 1978) and is proposed to be a consequence of transcriptional polarity exerted by a frameshift mutation in the ilvG gene on the expression of downstream genes of the ilvGMEDA operon (Lopes et al., 1989). It was observed in another study that the rho and nusG mutants that are defective for transcription termination conferred SMG-resistant (SMGR) phenotype in a relA1 strain (Harinarayanan and Gowrishankar, 2003)

SMG resistance

and a colourless upper aqueous phase. The upper aqueous phase in which RNA existsexclusively, was transferred to a fresh microfuge tube and RNA was precipitated byadding 0.5 ml of isopropyl alcohol for each ml of Trizol used. Samples were incubatedat 15 to 30ºC for 10-min and centrifuged at 12000 rpm for 10-min at 4ºC. RNA formeda gel like precipitate at the bottom of the tube. Supernatant was removed and RNA waswashed with 75% ethanol (by adding 1 ml of ethanol per ml of Trizolemployed). RNAcould be stored after this step in –20 or –70ºC for more than a year. RNA pellet was airdried for 15-to 30-min following which it was dissolved in nuclease free water. Theconcentrations and purity of RNA samples were determined spectroscopically as wellas by visual inspection on formaldehyde-agarose gel in MOPS buffer (Goodet al., 1996). Before loading onto the gel, RNA was mixed with loading buffer and heated at90ºC for 3-min

For isolation of RNA, cells were grown in minimal A medium supplemented with 0.2%glucose upto A600of 0.6. Cells were harvested by centrifugation and total RNA wasisolated by using Trizol (Invitrogen) according to manufacturer’s instructions. 1 ml ofTrizol was used to lyse cells equivalent of approximately 4 ml of overnight culture.Homogeneous lysis was achieved by gentle pipetting repeatedly. The homogenized samples were incubated at room temperature for 5-min to permit complete dissociationof nucleoprotein particles. Following homogenization, 0.2 ml of chloroform for each 1ml Trizol reagent was added and vigorously shaken with hand for 15-sec and incubatedfurther for 3-min at RT. It was then centrifuged at 12000 rpm for 10-min at 4ºC, whichseparates out the homogenate into lower phenol chloroform phase (red), an interphase

Isolation of total cellular RNA

Protein concentrations were estimated by the method of Bradford (1976). The A595wasmeasured after complexation with Bradford reagent. Bovine serum albumin was usedas standard against whichthe unknown protein concentrations were estimated

Protein estimation

Typically 200-300 ng of DNA was used in each ligation reaction. The ratio of vector toinsert was maintained between 1:3 to 1:5 for cohesive end ligation and 1:1 for blunt endligation. The reaction was generally performed in 10 μl volume containing ligationbuffer (provided by the manufacturer) and 0.05 Weiss unit of T4-DNA ligase, at 16ºCfor 14-to 16-hrs. On using the rapid ligation kitfrom Fermentas, incubation was at 22ºC for 1-2 hrs

Ligation of DNA

PCR products were purified using the PCR Purification Kit (Qiagen) as per the manufacturer's instructions

DNA fragments to be used for specific purposes like ligation or radioactive labeling were eluted from the agarose gel after electrophoresis. The gel piece containing thedesired band was sliced out from the gel and the DNA was purified using commerciallyavailable purification kits for this purpose. The efficiency of elution was determined bychecking a small aliquot of DNA sample on the gel

Purification of PCR products

Purification of DNA by gel elution

Around 0.5 to 1 μg of DNA was regularly used for each restriction digestion. 2to 5units of restriction enzyme were used in the total reaction volume of 20 μl containing 2μl of the corresponding buffer supplied at 10 X concentration by the manufacturer. Thereaction was incubated for 2 hrs at the temperature recommended by the manufacturer.The DNA fragments were visualised by ethidium bromide staining after electrophoresison a 0.8 to 1% agarose gels. Commercially available DNA size markers were run alongwith the digestion samples to compare with and to estimate the sizes of the restrictionfragments