The ABIS encyclopedia defines Pseudomonas corrugata as gram-negative aerobic rods and cocci and has an optimal growth temperature of 26 degrees Celsius. AgroAtlas, describe that P. corrugata belongs to the prokaryotic kingdom. Furthermore, AgroAtlas wrote that P. corrugata grows rapidly in the nutrient medium. According to AgroAtlas, P. corrugata does not produce a fluorescent pigment on King B medium. This organism dilutes gelatin (but not all strains). Starch and 1-arginine are not hydrolyzed by this organism. Oxidase and lecithinase reactions have a positive result. P. corrugata produces acid from “galactose, glucose, xylose, mannose, ribose, trehalose, sucrose, fructose, glycerin, inositol, mannitol, but this organism does not produce acid from lactose, maltose, rhamnose, sorbitol, adonitol, dextrin, dulcitol and cellobiose. According to Vittoria Catara, author of the International Journal of Systematic and Evolutionary Microbiology, P. corrugata is a ubiquitous bacterium and was described for the first time as responsible for tomato pith necrosis. OM Martins, author of the German Society of Phytomedicine, said: “In 1989 there was an epidemic of the disease in the States of Rio Grande do Sul. Symptoms were observed during the flowering and fruiting stages, and losses in the protected tomato reached 40 percent." He also wrote that plants along irrigation canals acquired a dark brown, water-soaked necrosis in the stem, followed by complete destruction of the pith. He said none of the infected plants survived; instead they all withered and died within days. Plantwise, an organization that aims to improve food security and the lives of the rural poor by reducing crop losses, stated that the first symptom of cord necrosis is a chlorosis of the...... middle of paper... ...2. March 19, 2012. Web.Kudela, Vaclav et al. Pseudomonas corrugate and Pseudomonas marginalis associated with collapse of tomato plants in rockwool slab hydroponics. Division of Plant Health, Crop Research Institute, Prague-Ruzyne, Czech Republic. 2010. 19 March 2012. Web.Martin, OM et al. The current status of Pseudomonas corrugato as an introduced agricultural pathogen in Brazil. German Phytomedicine Society. Nov. 2012. 19 March 2012. Web. Tomato pith necrosis (Pseudomonas ondulato). “Plantwise Empowering farmers, boosting research and ensuring better food safety.” 2012. March 19, 2012. Web.Pseudomonas corrugate & P. ​​mediterranea. ABIS Encyclopedia. March 19, 2012. Web.Scaloni, Andrea et al. Structure, conformation and biological activity of a new lipodepsipeptide from Pseudomonas corrugato: cormicin A1. 2004. March 19, 2012. Web.