P-l,3-glucanase

IV. PARASITISM. Lysis by hydrolytic enzymes excreted by microorganisms is a well-known feature of mycoparasitism. Chitinase and P-l,3 glucanase (laminarase) are particularly important enzymes secreted by fungal mycoparasites capable of degrading the fungal cell wall components, chitin, and P-1,3 glucan (131-134). 

Many rhizobacteria are classified as chitinolytic and, for example, Serratki marsescens, which excretes chitinase, was found to be an effective biocontrol agent against Sclerotium rolfsii (135). Similarly, Aeromonas caviae was found to reduce disease caused by Rhizoctonia solani, Fusarium oxysporuin, and Sclerotium rolfsii (136). There is also evidence to support the role of P-l,3 glucanase in biocontrol of soil-borne plant pathogens (137). 

Tuzun, S., Rao, N., Voegli, U., Schardl, C. Kuc, J. (1989). Induced systemic resistance to blue mold early induction and accumulation of P-l,3-glucanases, chitinases, and other pathogenesis-related proteins (b-proteins) in immunized tobacco. Phytopathology 79, 979-83. 

Ward, E., Payne, G., Moyer, M., Williams, S., Dincher, S., Sharkey, K., Beck, J., Taylor, H., Ahl-Goy, P., Meins, F. Ryals, J. (1991). Differential regulation of P-l,3-glucanase mRNAs in response to pathogen infection. Plant Physiology 96, 390-7. 

E.S. Deimisa Chitinase, P-l,3-glucanase, osmotin, and extensin are expressed in tobacco explants during flower formation The Plant Cell 2 (1990) 673-684. 

Lambais, M.R. and Mehdy, M.C. (1996) Soybean roots infected by Glomus intraradices strains differing in infectivity exhibit differential chiti-nase and P-l,3-glucanase expression. New Phytol 134, 531-538... 

Damascene, C.M.B., Bishop, J.G., RipoU, D.R., Win, J., Kamoun, S., Rose, J.K.C. (2008). Structure of the glucanase inhibitor protein (GIP) family from Ph5dophthora species suggests coevolution with plant endo-P-l,3-glucanases. Mol. Plant-Microbe Interact. 21, 820-830. 

Wotjasik, W., Kulma, A., Dymihska, L., Hanuza, J., Zebrowski, J., Szopa, J., 2013. Fibres from flax overproducing p-l,3-glucanase show increased accumulation of pectin and phenoUcs and thus higher antioxidant capacity. BMC Biotechnol. 13, 10. 

Kumagai, Y. and Ojima T. (2010) Isolation and characterization of two types of p-l,3-glucanases from the common sea hare Aplysia kurodai. Comp. Biochem. Physiol., 155B, 138—144. 

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