Molecular Characterization and Gene Expression Profiling ... - CUSAT

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4.2. Materials and Methods 4.2.1. Experimental animals and rearing conditions Chapter 4 Healthy adult P. monodon (45-50 g) were collected from a local shrimp farm in Vypeen, Kochi. They were transferred to aquarium tanks of 500 l capacity and acclimatized for 2 weeks under laboratory conditions (Fig. 4.2). Shrimps were fed standard feed (Higashi, India) twice daily ad libitum. Constant aeration was provided in all tanks during the experiment and bioreactor was set for maintaining water quality. Physico-chemical parameters such as salinity, pH, alkalinity, ammonia, nitrite, nitrate, dissolved oxygen and temperature were monitored daily following standard procedures (APHA, 1995) and maintained at optimal levels as given in Table 4.1. Fig. 4.2. Experimental tank 4.2.2. Sampling Six animals were sampled for the baseline data of AMP gene expression profile analysis. Thereafter the animals were maintained for a further period of four weeks (28 days) and again the animals were sampled Molecular Characterization and Gene Expression Profiling of Antimicrobial Peptides in Penaeid Shrimps 249
Chapter 4 for understanding gene expression profile in healthy animals (Pre-challenge control). 4.2.3. WSSV challenge On the 29 th day all the animals were challenged with WSSV by feeding WSSV infected frozen tissue at a rate of 1g/animal. Thereafter they were maintained on standard feed and sampling was performed on a time- course basis. Sampling was performed at one day interval for 10 days post- challenge WSSV. Six animals were sampled at every interval and only those in the intermoult stage were taken for analysis; since, immune states of penaeid shrimps are known to show variation in relation to the moult cycle (Hose et al., 1992, Liu et al., 2004). Mortality by WSSV infection was confirmed by checking the characteristic white spots on the carapace of infected shrimps. 4.2.4. Haemolymph collection section 2.2.3. Haemolymph was collected from the rostral sinus as described in 4.2.5. Total RNA isolation and reverse transcription Total RNA isolation and first strand cDNA synthesis were performed as described in sections 2.2.4, 2.2.5 and 2.2.6. 4.2.6. Semi-quantitative RT-PCR analysis of target gene expression Time-course analysis of target gene expression was determined by semi-quantitative RT-PCR analysis using 18S rRNA, β-actin and ELF as the internal control (Marone et al., 2003). cDNA was diluted 5 times and amplified using Taq polymerase. PCR amplification of 1µl of the diluted cDNA was performed in a 25 µl reaction volume containing 1x standard Taq buffer (10 mM Tris-HCl, 50 mM KCl, pH 8.3), 200 µM dNTPs, 0.4 µM each primer and 1U Taq DNA polymerase (New England Biolabs, USA). Amplification was performed using AMP gene primers viz. ALF, crustin-1, crustin-2, crustin-3, penaeidin-3 and penaeidin-5 primers (Table Molecular Characterization and Gene Expression Profiling of Antimicrobial Peptides in Penaeid Shrimps 250
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Molecular Characterization and Gene
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Declaration I hereby do declare tha
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Acknowledgements This work was carr
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My Seniors, Dr. Annies Joseph, Dr.
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Contents Title Page Nos. 1 General
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in response to WSSV challenge 252-2
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α-2M Alpha-2-Macroglobulin ALF Ant
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ppA Prophenoloxidase-Activating Enz
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1.1 Introduction Chapter 1 Aquacult
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Chapter 1 the giant tiger shrimp (P
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Common names: Chapter 1 Giant tiger
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1.3.1. Diseases Chapter 1 Diseases
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Lymphoidal parvo-like virus (LPV) B
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Chapter 1 and protective occlusion
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Chapter 1 small brown masses in the
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1.4.6. Natural epidemics Chapter 1
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Chapter 1 can differentiate WSSV-in
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1.5.1.1. Probiotics Chapter 1 Alter
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Chapter 1 tried in P. monodon, resu
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Chapter 1 The first and essential i
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Chapter 1 1998). The innate immunit
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1.6.1 Haemocytes Chapter 1 The haem
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Chapter 1 In crustaceans, the sheet
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Chapter 1 Theopold et al., 2002). C
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Chapter 1 kill/remove the invading
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Chapter 1 forming complexes with a
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1.7 Antimicrobial Peptides (AMPs) 1
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Chapter 1 the response is very fast
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Chapter 1 Hirsch, 1947). While they
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Chapter 1 AMPs to various degrees u
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1.7.5 Biological activity Chapter 1
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Chapter 1 including the microbes as
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Tachyplesin I Chapter 1 Crustacea P
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Anionic and cationic peptides that
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Anionic and Cationic AMPs with cyst
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Chapter 1 Fig. 1.7. Structural clas
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Chapter 1 Group III: Linear peptide
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Chapter 1 through regular processes
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Chapter 1 ultimately signal to tran
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Chapter 1 divalent polyanionic cati
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Chapter 1 type of transmembrane por
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Chapter 1 other intracellular targe
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Chapter 1 Apidaecin, a short, proli
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Chapter 1 Hultmark, 1987; Gennaro a
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Chapter 1 quite opposite characteri
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Chapter 1 depletion of mitochondria
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Chapter 1 conformations adopted by
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Chapter 1 receptor may be a potenti
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Chapter 1 exposure to their targets
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Chapter 1 generating a rich spectru
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Chapter 1 by enkelytin (Goumon et a
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Lactoferricin Cow Mastitis control
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Chapter 1 trial, in which peptide T
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Chapter 1 a too limited spectrum to
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Chapter 1 number of research groups
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CHAPTER-2 Molecular Characterizatio
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Chapter 2 interaction with negative
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Chapter 2 inhibit the endotoxin or
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Chapter 2 structure be modified to
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Chapter 2 and the region might be l
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Chapter 2 been made of the spectra
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Chapter 2 their discovery and initi
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Chapter 2 terminal pyroglutamic aci
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Chapter 2 One can assume that the p
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Chapter 2 by degranulation into the
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2.2. Materials and Methods 2.2.1. E
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Chapter 2 washed by adding 1 ml 75
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Chapter 2 entry of recombinant DNA
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Chapter 2 and the deduced amino aci
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Chapter 2 Fenneropenaeus, Litopenae
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2.3.1.3. Crustin-1 (GQ334395) Chapt
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2.3.1.3.5. Phylogenetic analysis of
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Chapter 2 sequence also showed high
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Chapter 2 chinensis and F. indicus
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Chapter 2 monodon and Group III of
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Chapter 2 Tiger shrimp (P. monodon)
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Chapter 2 ALF-1 was a partial seque
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Chapter 2 As mentioned before, the
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Chapter 2 Munoz et al., 2004). The
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Table 2.1. Primers used for the stu
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Table 2.4. BLASTn analysis of ALF-2
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Table 2.8. BLASTn analysis of Crust
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Table 2.12. BLASTn analysis of Pena
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Fig.2.5. Agarose gel electrophoreto
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Chapter 2 Fig.2.9. Multiple alignme
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Chapter 2 Fig. 2.12 A bootstrapped
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Chapter 2 Fig. 2.15. Multiple align
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Chapter 2 Fig.2.18. A bootstrapped
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Chapter 2 Fig.2.20. Signal peptide
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Chapter 2 Fig.2.24 Multiple alignme
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Chapter 2 LITOPENAEUS SP. FARFANTEP
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Chapter 2 Fig. 2.28. Nucleotide and
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Chapter 2 LITOPENAEUS SP. FENNEROPE
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Chapter 2 Fig.2.43 A bootstrapped n
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Chapter 2 LITOPENAEUS SP. FENNEROPE
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Chapter 2 Fig.2.51 Signal peptide a
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Chapter 2 FENNEROPENAEUS SP. FARFAN
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CHAPTER-3 Molecular Characterizatio
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Chapter 3 certainly help us to unra
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Chapter 3 3.3.1.1. Anti-lipopolysac
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Chapter 3 was predicted out to be 1
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Chapter 3 random coiled structure t
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3.3.1.3.5. Phylogenetic analysis of
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Chapter 3 case has been reported in
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Page 229 and 230: Chapter 3 Fig.3.2. Nucleotide and a
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Page 245 and 246: Chapter 3 Fig.3.25. Signal peptide
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Page 249 and 250: PENAEIDIN-2 Chapter 3 PENAEIDIN- 3
Page 251 and 252: Fig.3.31. Nucleotide and amino acid
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5.3.4.5. Expression profile of pena
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Chapter 5 must firstly rest on a so
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Chapter 5 For the present study two
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Chapter 5 ameobocytes of two marine
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Chapter 5 variation in expression o
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Chapter 5 It has been previously sh
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Chapter 5 manifested in terms of gr
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(A) (B) (C) C CHY CSY CHG CSG C CHY
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(A) (B) -VE CTRL +VE CTRL CHG CSG C
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(A) PRE-CHALLENGE (B) POST-CHALLENG
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(A) PRE-CHALLENGE (B) (C) (D) CONTR
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(C) (D) (A) PRE-CHALLENGE (B) CONTR
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(A) (B) G M HP HR I Chapter 5 Fig.
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Chapter 5 Fig. 5.26. Post challenge
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6.1. Introduction Chapter 6 Prophyl
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Chapter 6 production of inhibitory
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6.2. Materials and methods 6.2.1. E
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Chapter 6 tissue cDNA was performed
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Chapter 6 gene was supported by Bac
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Chapter 6 treated group of shrimps.
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Chapter 6 the gene was found to be
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Chapter 6 found to support minimum
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Chapter 6 is induced upon bacterial
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Chapter 6 all the target genes, exc
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Chapter 6 Detailed tissue-wise anal
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Chapter 6 Gills and intestine was f
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(A) (B) Fig. 6.1. Experimental diet
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(A) (B) (C) Fig. 6.3. Expression pr
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(A) (B) (C) C B M BM C B M BM Fig.
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(A) (B) (C) Fig. 6.7. Expression pr
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(A) (B) (C) Chapter 6 Fig. 6.9. Exp
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(A) (B) -VE CTRL +VE CTRL B M BM Ch
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(A) (C) (D) PRE-CHALLENGE POST-CHAL
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(A) (B) G M HP HR I Chapter 6 Fig.
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Chapter 6 Fig. 6.27. Post challenge
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7.1. Summary Chapter 7 Tropical shr
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Salient findings Chapter 7 � From
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Chapter 7 � Tissue-wise expressio
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Chapter 7 application in shrimp cul
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References Aboudy, Y., Mendelson, E
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References Anggraeni, M.S., Owens,
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References Bals, R., Wang, X., Zasl
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References derived from the N-termi
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References Breukink, E., de Kruijff
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References Burgents, J.E., Burnett,
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References 1,3-β-D-glucan-binding
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References Chen, J.Y., Chuang, H.,
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References Cole, A.M., Hong, T., Bo
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References Dathe, M., Wieprecht, T.
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References Diamond, G., Zasloff, M.
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References Faber, C., Stallmann, H.
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References Flint, S.J., Enquist, L.
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References Gennaro, R., Zanetti, M.
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References Kang, J.H., Shin, S.Y.,
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References Kono, T., Savan, R., Sak
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References Li, L., Wang, J.X., Zhao
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References Liu, C.H., Cheng, W., Ku
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References Lorenzon, S., de Guarrin
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Penaeus monodon anti-lipopolysaccha
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Penaeus monodon crustin-like antimi
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Penaeus monodon crustin-like antimi
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Penaeus monodon penaeidin-like anti
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Penaeus monodon elongation factor m
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Fenneropenaeus indicus anti-lipopol
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Fenneropenaeus indicus penaeidin-li
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Fenneropenaeus indicus beta-actin m
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PUBLICATIONS
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Short sequence report Molecular cha
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Fig. 2. Multiple alignment of nucle
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220 The phylogenetic relationships
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Table 1 Rearing conditions and wate
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5 ′ cttgtggttgacaatggctccg3
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Expression of WSSV genes in the hae
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Fig. 4. Expression profile of crust
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S.P. Antony et al. / Immunobiology
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