Identification of genetic pathogenicity mechanisms of Austropuccinia psidii to the Myrtaceae family

• Grant number: 21/01606-6
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: September 01, 2021
• End date: December 31, 2023
• Field of knowledge: Agronomical Sciences - Agronomy - Plant Health
• Principal Investigator: Nelson Sidnei Massola Júnior
• Grantee: Thaís Regina Boufleur
• Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
• Associated research grant: 19/13191-5 - Epidemiological components, damage characterization and control of tropical and temperate rusts at a global climate change scenario, AP.TEM
• Associated scholarship(s): 22/11900-1 - Comparative genomics to decipher host adaptation of the fungal pathogen Austropuccinia psidii to its plant host species in the Myrtaceae family, BE.EP.PD

Abstract

Since the beggining of time, rust fungi have been among the pathogens responsible for some of the most destructive diseases in cultivated and non-cultivated plants worldwide. Among these diseases is Myrtle Rust, caused by Austropuccinia psidii, that is becoming a growing threat to this plant family. Brazil is the center of origin of A. psidii, and currently Myrtle Rust is widespread, associated with more than 480 species of this family. The wide range of Myrtle susceptible hosts, alied to genetic evidences, indicates that this pathogen is being disseminated worldwide through this multiple hosts, and is becoming a major problem to fruit production and the biodiversity of many countries. This disease represents the greatest threat to guava (Psidium guajava), and can lead to up to 100% of losses of production. Comparative genomic analyses between rust pathogens that are able or not to infect plants of the Myrtle family, will help to identify pathogenicity factors related to the specificity of A. psidii to this family. The list of genes and/or genomic regions thatwill be revealed may be strong candidates in future studies of characterization of A. psidiipopulations, helping to clarify the complex taxonomy of the species. These genes can also be used in functional studies, and may be helpfull in the development of more ecofriendly control measuresthat can reduce the threat of A. psidii to the economy and biodiversity. (AU)

Scientific publications

(5)

(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)

GOULIN, EDUARDO; BOUFLEUR, THAIS REGINA; NEGRINI, FRANCESCA; CARNEIRO, GREICE AMARAL; BARALDI, ELENA; MACHADO, MARCOS ANTONIO; LE FLOCH, GAETAN; BARONCELLI, RICCARDO. Genome Sequence Resources of Colletotrichum abscissum, the Causal Agent of Citrus Post-Bloom Fruit Drop, and the Closely Related Species C. filicis. PHYTOPATHOLOGY, v. 113, n. 1, p. 4-pg., 2023-01-01. (08/57909-2, 21/01606-6, 12/23381-7, 14/50880-0)

LINHARES DE CASTRO, RENATA REBELLATO; CIAMPI-GUILLARDI, MAISA; ROGERIO, FLAVIA; DA SILVA, CLAUDIO DIAS, JR.; BOUFLEUR, THAIS REGINA; MASSOLA, NELSON SIDNEI, JR.. Species diversity, resistance to MBC fungicides, and low sensitivity to azoxystrobin in field isolates of Colletotrichum spp. associated with soybean anthracnose in Mato Grosso and Goias States, Brazil. ROPICAL PLANT PATHOLOG, v. N/A, p. 12-pg., 2022-12-22. (17/09178-8, 21/01606-6)

BOUFLEUR, THAIS R.; MASSOLA JR, NELSON S. S.; BECERRA, SIOLY; BARALDI, ELENA; BIBIANO, LILLIAN B. J.; SUKNO, SERENELLA A. A.; THON, MICHAEL R. R.; BARONCELLI, RICCARDO. Comparative transcriptomic provides novel insights into the soybean response to Colletotrichum truncatum infection. FRONTIERS IN PLANT SCIENCE, v. 13, p. 15-pg., 2022-11-25. (17/09178-8, 21/01606-6)

BECERRA, SIOLY; BARONCELLI, RICCARDO; BOUFLEUR, THAIS R.; SUKNO, SERENELLA A.; THON, MICHAEL R.. Chromosome-level analysis of the Colletotrichum graminicola genome reveals the unique characteristics of core and minichromosomes. FRONTIERS IN MICROBIOLOGY, v. 14, p. 13-pg., 2023-03-23. (21/01606-6)

TIKAMI, ISIS; BARONCELLI, RICCARDO; CIAMPI-GUILLARDI, MAISA; MARTINS, TULIO V.; BOUFLEUR, THAIS R.; MASSOLA JUNIOR, NELSON S.. First report of anthracnose caused by Colletotrichum truncatum on Digitaria insularis in Brazil. JOURNAL OF PLANT PATHOLOGY, v. N/A, p. 2-pg., 2023-07-17. (21/01606-6, 17/09178-8)