Identification of phytopathogenic bacteria in maize seeds in Ukraine

Abstract
The main bacterial diseases of maize: bacterial wilt of maize (Pantoea stewartii subsp. stewartii), goss’s bacterial wilt (Clavibacter michiganensis subsp. nebraskensis), seed rot-seedling blight of maize (Bacillus subtilis), bacterial spot of maize (Pseudomonas syringae pv. syringae), bacterial leaf spot of maize (Pantoea agglomerans) and bacterial stalk rot of maize caused by several causative agents, were described. The causative agents of these diseases are often stored and transmitted with seeds, so seed analysis for the presence of phytopathogenic bacteria is an important step in the pathogen control system. For analysis, the corn seeds that were grown in the Poltava and Kiev regions of Ukraine were used. Microbiological analysis of seeds was carried out by classical methods. From visually healthy corn seeds, that form shoots in the field conditions, strongly affected by root rot, were isolated the strains of Pseudomonas fluorescens. Isolated P. fluorescens strains were the reason for the damage of soft rot in the field. This type of bacteria is an opportunistic pathogen and is capable of causing soft rot of a number of crops. It has been established that P. fluorescens cause root rot of maize seedlings. From visually healthy seeds, from which healthy corn seedlings form, Pantoea agglomerans and Pantoea ananatis were isolated. P. agglomerans are widespread plant epiphyte. P. ananatis causes disease symptoms in a wide range of economically important crops and forest tree species worldwide. It is regarded as a pathogen based on the increasing number of diseases reports on previously unrecorded hosts in different parts of the world and can cause damage to maize seedlings in the field.
Description
Keywords
maize, Pantoea ananatis, seeds, bacterial diseases, Pantoea agglomerans, Pseudomonas fluorescens
Citation
http://www.agricultforest.ac.me/data/20181215-09%20Butsenko%20et%20al.pdf