Abstract
A halotolerant bacterium capable of chitinase production was previously isolated from saline soils of Gavkhooni marsh, Iran. The strain was identified as Bacillus pumilus strain SG2. This strain secretes two chitinases into the medium in response to the presence of chitin in the medium. The two chitinases, ChiS and ChiL, were active on both polymeric as well as oligosaccharide substrates. In this study, these two extracellular chitinases were purified from the supernatant of the Bacillus culture by ammonium sulfate precipitation. The optimum pH and temperature for both of these chitinases were pH 6 and 37°C, respectively. According to the conserved domain analysis, ChiS and ChiL were categorized in family 18 of the glycosylhydrolases. Three essential conserved amino acid residues (Asp-194, Asp-196 and Glu-198) in ChiS and (Asp-228, Asp-230 and Glu-232) in ChiL were found within the active site. Antifungal activities of the two purified chitinases were assessed on Rhizoctonia solani, Verticillium sp., Nigrospora sp., Stemphyllium botryosum and Bipolaris sp. demonstrating inhibition of all the tested strains. However, these chitinases did not inhibit cell wall formation of the non-chitin-containing fungi (oomycetes) Phytophthora citricola and Phytophthora capsici. This is the first investigation demonstrating antifungal activity of chitinases purified from B. pumilus SG2.
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Ahmadian G, Degrassi G, Venturi V, Zeigler DR, Soudi M, Zanguinejad P (2007) Bacillus pumilus SG2 isolated from saline conditions produces and secretes two chitinases. J Appl Microbiol 103:1081–1089. doi:10.1111/j.1365-2672.2007.03340.x
Bacon CW, Yates IE, Hinton DM, Meredith F (2001) Biological control of Fusarium moniliforme in maize. Environ Health Perspect 2:325–332. doi:10.1016/j.foodcont.2005.12.013
Baek JH, Han BK, Jo DH (2001) Distribution of chitinase in rice (Oryza sativa L) seed and characterization of a hull specific chitinase. J Biochem Mol Biol 34:310–315
Barboza-Corona JE, Nieto-Mazzocco E, Velazquez-Robledo R, Salcedo-Hernandez R, Bautista M, Jiménez B, Ibarra JE (2003) Cloning, sequencing and expression of the chitinase gene chiA74 from Bacillus thuringiensis. Appl Environ Microbiol 69:1023–1029. doi:10.1128/AEM.69.2.1023-1029.2003
Beahdy J (1974) Recent developments of antibiotic research and classification of antibiotics according to chemical structure. Adv Appl Microbiol 18:309–406. doi:10.1016/S0065-2164(08)70573-2
Boller T, Gehri A, Mauch F, Vogeli U (1983) Chitinase in bean leaves: induction by ethylene, purification, properties, and possible function. Planta 157:22–31. doi:10.1007/BF00394536
Bottone EJ, Peluso RW (2003) Production by Bacillus pumilus (MSH) of an antifungal compound that is active against Mucoraceae and Aspergillus species: preliminary report. J Medical Microbiol 52:69–74. doi:10.1099/jmm.0.04935-0
Chiou AL, Wu WS (2001) Isolation, identification and evaluation of bacterial antagonists against Botrytis elliptica on lily. J Phytopathol 149:319–324. doi:10.1046/j.1439-0434.2001.00627.x
Cordovilla P, Valdivia E, Gonzalez-Segura A, Galvez A, Martinez-Bueno M, Maqueda M (1993) Antagonistic action of the bacterium Bacillus licheniformis M-4 toward the amoeba Naegleria fowleri. J Eukaryot Microbiol 40:323–328. doi:10.1111/j.1550-7408.1993.tb04923.x
Gunarantna KR, Balasubramanian R (1994) Partial purification and properties of extracellular chitinase produced by Acremonium obclavatum, an antagonist to groundnut rust, Puccinia arachidis. World J Microbiol Biotechnol 10:342–345. doi:10.1007/BF00414876
Han BK, Moon JK, Ryu YW, Park YH, Jo DH (2000) Purification and characterization of acidic chitinase from gizzards of broiler (Gallus gallus L.). J Biochem Mol Biol 33:326–331
Haran S, Schickler H, Chet I (1993) Increased constitutive chitinase activity in transformed Trichoderma harzianum. Biol Control 3:101–108. doi:10.1006/bcon.1993.1016
Huang CJ, Wang TK, Chung SC, Chen CY (2005) Identification of an antifungal chitinase from a potential biocontrol agent, Bacillus cereus 28–9. J Biochem Mol Biol 38:82–88
Joo GJ (2005) Purification and characterization of an extracellular chitinase from the antifungal biocontrol agent Streptomyces halstedii. Biotechnol Lett 27:1483–1486. doi:10.1007/s10529-005-1315-y
Karuse N, Tenyo O, Kobaru S, Kamei H, Miyaki T, Konishi M, Oki T (1990) Pumilucidin, a complex of new antiviral antibiotics. Production, isolation, chemical properties, structure and biological activity. J Antibiot 43:267–280
Katz E, Demain AL (1977) The peptide antibiotics of Bacillus: chemistry, biogenesis and possible functions. Bacteriol Rev 41:449–474
Kim DS, Cork RJ, Weller DM (1997) Bacillus sp. L324–92 for biological control of three rot diseases of the wheat grown with reduced tillage. Phytopathology 87:551–558. doi:10.1094/PHYTO.1997.87.5.551
Kim SK, Kim YT, Byun HG, Park PJ, Ito H (2001) Purification and characterization of antioxidative peptide from bovine skin. J Biochem Mol Biol 34:219–224
Kunz C, Ludwig A, Boller T (1992) Evaluation of the antifungal activity of the purified chitinase I from the filamentous fungus Aphanocladium album. FEMS Microbiol Lett 90:105–109. doi:10.1111/j.1574-6968.1992.tb05135.x
Lorito M, Woo SL, Fernandez IG, Colucci G, Harman GE, Pintor-Toro JA, Filippone E, Muccifora S, Lawrence C, Zoina A, Tuzun S, Scala F (1998) Genes from mycoparasitic fungi as a source for improving plant resistance to fungal pathogens. Proc Natl Acad Sci USA 95:7860–7865
Mabuchi N, Araki Y (2001) Cloning and sequencing of two genes encoding chitinases A and B from Bacillus cereus CH. Can J Microbiol 47:895–902. doi:10.1139/cjm-47-10-895
Marimoto K, Karita S, Kimura T, Sakka K, Hmiya K (1997) Cloning, sequencing, and expression of the gene encoding Clostridium paraputrificum chitinase ChiB and analysis of the functions of novel cadherin-like domains and a chitin-binding domain. J Bacteriol 179:7306–7314
Mathivana N, Kabilan V, Murugesan K (1997) Production of chitinase by Fusarium chlamydosporum, a mycoparasite to groundnut rust, Puccinia arachidis. Indian J Exp Biol 35:890–893
Oppenheim AB, Chet I (1992) Cloned chitinase in fungal pathogen control strategies. Trends Biotechnol 10:392–394. doi:10.1016/0167-7799(92)90281-Y
Pal KK, Tilak KV, Saxena AK, Dey R, Singh CS (2001) Suppression of maize root diseases caused by Macrophomina phaseolina, Fusarium moniliforme and Fusarium graminearum by plant growth promoting rhizobacteria. Microbiol Res 156:209–223. doi:10.1078/0944-5013-00103
Pettersen EF, Goddard TD, Huang CC, Couch GS, Greenblatt DM, Meng EC, Ferrin TE (2004) UCSF chimera—a visualization system for exploratory research and analysis. J Comput Chem 25:1605–1612. doi:10.1002/jcc.20084
Rast DM, Horsch M, Further R, Gooday GW (1991) A complex chitinolytic system in exponentially growing mycelium of Mucor rouxii: properties and function. J Gen Microbiol 137:2707–2810. doi:10.1099/00221287-137-12-2797
Robbins PW, Overbye K, Pero J (1992) Cloning and high-level expression of chitinase-encoding gene of Streptomyces plicatus. Gene 111:69–76. doi:10.1016/0378-1119(92)90604-N
Roberts WK, Selitrennikoff CP (1998) Plant and bacterial chitinases differ in antifungal activity. J Gen Microbiol 134:169–176. doi:10.1099/00221287-134-1-169
Sakai K, Yokota A, Kurokawa H, Wakayama M, Moriguchi M (1998) Purification and characterization of three thermostable endochitinases of a noble Bacillus strain, MH-1, isolated from chitin-containing compost. Appl Environ Microbiol 64:3397–3402
Saksirirat W, Hoppe HH (1991) Secretion of extracellular enzymes by Verticillium psalliotae Treschow and Verticillium lecanii (Zimm.) Viegas during growth on uredospores of the soybean rust fungus in liquid cultures. J Phytopathol 131:161–173. doi:10.1111/j.1439-0434.1991.tb04741.x
Spizizen J (1958) Transformation of biochemically deficient strains of Bacillus subtilis by deoxyribonucleate. Proc Natl Acad Sci USA 44:1072–1078
Tantimavanich S, Pantuwatana S, Bhumiratana A, Panbangred W (1998) Multiple chitinase enzymes from a single gene of Bacillus licheniformis TP-1. J Ferment Bioeng 85:259–265. doi:10.1016/S0922-338X(97)85672-3
Thompson JD, Higgins DG, Gibson TJ (1994) CLUSTAL W: improving the sensitivity of progressive multiple sequence alignment through sequence weighting, position-specific gap penalties and weight matrix choice. Nucleic Acids Res 22:4673–4680. doi:10.1093/nar/22.22.4673
Tormo J, Lamed R, Chirino AJ, Morag E, Bayer EA, Shoham Y, Steitz TA (1996) Crystal structure of a bacterial family-III cellulose-binding domain: a general mechanism for attachment to cellulose. EMBO J 21:5739–5751
Tsujibo H, Okami Y, Tanno H, Inamori Y (1993) Cloning, sequence, and expression of a chitinase gene from a marine bacterium, Alteromonas sp. strain O-7. J Bacteriol 175:176–181
Ueno H, Miyashita K, Swada Y, Oba Y (1990) Purification and some properties of extracellular chitinase from Streptomyces sp. S-84. J Gen Appl Microbiol 36:377–392. doi:10.2323/jgam.36.377
Walker R, Powell AA, Seddon B (1998) Bacillus isolates from the spermosphere of peas and dwarf French beans with antifungal activity against Botrytis cinerea and Pythium species. J Appl Microbiol 84:791–801. doi:10.1046/j.1365-2672.1998.00411.x
Watanabe T, Ito Y, Yamada T, Hashimoto M, Sekine S, Tanaka H (1994) The roles of the C-terminal domain and type III domains of chitinase A1 from Bacillus circulans WL-12 in chitin degradation. J Bacteriol 176:4465–4472
Zeilinger S, Galhaup C, Payer K, Woo SL, Mach RL, Fekete C, Lorito M, Kubicek CP (1999) Chitinase gene expression during mycoparasitic interaction of Trichoderma harzianum with its host. Fungal Genet Biol 26:131–140. doi:10.1006/fgbi.1998.1111
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The authors would like to thank the International Center for Genetics Engineering and Biotechnology (ICGEB, Italy) and National Institute of Genetic Engineering and Biotechnology (NIGEB, Iran) for providing financial support.
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Ghasemi, S., Ahmadian, G., Jelodar, N.B. et al. Antifungal chitinases from Bacillus pumilus SG2: preliminary report. World J Microbiol Biotechnol 26, 1437–1443 (2010). https://doi.org/10.1007/s11274-010-0318-6
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DOI: https://doi.org/10.1007/s11274-010-0318-6