Survivability of Xanthomonas campestris pv. campestris associated with soil under controlled and field conditions

• Grant number: 12/13298-5
• Support Opportunities: Regular Research Grants
• Start date: October 01, 2012
• End date: February 28, 2015
• Field of knowledge: Agronomical Sciences - Agronomy - Plant Health
• Principal Investigator: Antonio Carlos Maringoni
• Grantee: Antonio Carlos Maringoni
• Host Institution: Faculdade de Ciências Agronômicas (FCA). Universidade Estadual Paulista (UNESP). Campus de Botucatu. Botucatu , SP, Brazil

Abstract

Black rot, incited by Xanthomonas campestris pv. campestris (Xcc), is one of the main diseases of brássicas in many countries, leading to losses up to 60% in production. The knowledge of survival ecological niches of phytopathogenic bacteria is extremely important for the appropriate management of phytobacteriosis, once a small amount of survival inoculums between crop seasons can be enough to development of a new epidemic in the field. Through the use of Xcc mutants resistant to 100 ¼g.mL-1 of rifampicin, the soil survival capacity of the bacteria under field and controlled conditions will be evaluated in different assays. Soil survival under field conditions will be evaluated in four trials at different times of the year, evaluating the influence of soil humidity, temperature and microbial activity in the survivability of Xcc. In controlled conditions, the survival period of three isolates of Xcc will be determined, and the effects of temperature, humidity and soil microbial activity in the survivability of the bacteria will be evaluated. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

SILVA JUNIOR, T. A. F.; SILVA, J. C.; GONCALVES, R. M.; SOMAN, J. M.; PASSOS, J. R. S.; MARINGONI, A. C.. Survival of Xanthomonas campestris pv. campestris associated with soil and cauliflower crop debris under Brazilian conditions. European Journal of Plant Pathology, v. 156, n. 2, NOV 2019. (11/18527-0, 12/13298-5)