Survival niches and dissemination of Xanthomonas campestris pv. campestris, causal agent of brassicas black rot

• Grant number: 17/13822-0
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: November 01, 2017
• End date: February 29, 2020
• Field of knowledge: Agronomical Sciences - Agronomy - Plant Health
• Principal Investigator: Antonio Carlos Maringoni
• Grantee: João César da Silva
• Host Institution: Faculdade de Ciências Agronômicas (FCA). Universidade Estadual Paulista (UNESP). Campus de Botucatu. Botucatu , SP, Brazil

Abstract

Black rot, caused by Xanthomonas campestris pv. campestris (Xcc), is considered the most important brassica disease in the world. Despite management efforts, its occurrence is common in brassica crops. Survival niches knowledge and Xcc dissemination mechanisms are extremely important for the efficient management of black rot. This research project aims at evaluating Xcc survival capacity in different ecological niches, as well as the dissemination potential of the bacterium by insects. Surveys will be carried out in brassica producing areas with a black rot occurrence background in some São Paulo State cities, in order to identify weed species that favor the epiphytic Xcc colonization, as well as bacterium host weeds. Endophytic weed colonization by Xcc will be evaluated in trials conducted in controlled conditions using rifampicin resistant isolates. Experiments will be performed under field conditions to evaluate Xcc survival in the phylloplane and rhizosphere of cultivated plants used in rotation with brassicas. The potential survival of Xcc in the rhizosphere of cabbage grown in different soil types will also be verified, as well as its dissemination by insects in greenhouse experiments with Bemisia tabaci (whitefly) and Myzus persicae (aphid). The results obtained here will be used to improve black rot management. (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)

DA SILVA, JOAO CESAR; FERNANDES DA SILVA JUNIOR, TADEU ANTONIO; SOMAN, JOSE MARCELO; GONCALVES, RICARDO MARCELO; MARINGONI, ANTONIO CARLOS. Occurrence of Xanthomonas campestris pv. campestris in wild radish (Raphanus raphanistrum L.) in Brazil. JOURNAL OF PLANT PATHOLOGY, v. 101, n. 2, p. 1-pg., 2019-05-01. (17/13822-0)

DA SILVA, JOAO CESAR; DA SILVA JUNIOR, TADEU ANTONIO FERNANDES; SOMAN, JOSE MARCELO; DO NASCIMENTO, DANIELE MARIA; DE MELO, LUANA LAURINDO; OLIVEIRA, LETICIA RODRIGUES; SARTORI, MARIA MARCIA PEREIRA; MARINGONI, ANTONIO CARLOS. Survival of Xanthomonas campestris pv. campestris in the phyllosphere and rhizosphere of crops. PLANT AND SOIL, v. 462, n. 1-2, FEB 2021. (17/13822-0)

DA SILVA, JOAO CESAR LOURENCETTI; DA SILVA JR, TADEU ANTONIO FERNANDES; DO NASCIMENTO, DANIELE MARIA; DE MELO, LUANA LAURINDO; OLIVEIRA, LETICIA RODRIGUES; GIROTTO, KARINE TELES; EBURNEO JR, VILSON EBURNEO; SOMAN, JOSE MARCELO; SARTORI, MARIA MARCIA PEREIRA; MARINGONI, ANTONIO CARLOS. Weeds are survival niches of Xanthomonas campestris pv. campestris in Sao Paulo state, Brazil. ROPICAL PLANT PATHOLOG, v. N/A, p. 13-pg., 2023-09-21. (17/13822-0)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

SILVA, João César da. Survival niches and dissemination of Xanthomonas campestris pv. campestris, causal agent of brassicas black rot. 2020. Doctoral Thesis - Universidade Estadual Paulista (Unesp). Faculdade de Ciências Agronômicas. Botucatu Botucatu.