Phytopathogen resistance of phytohormone-deficient and low-sensitivity mutant tomatoes
| Autor: | Carla Dias Tunes, Vanessa Pinto Gonçalves, Daniele Brandstetter Rodrigues, Andréia da Silva Almeida, Priscila Rossatto Meneses, Alexandre Milech Neumann |
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| Jazyk: | English<br />Portuguese |
| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Revista Ceres, Vol 68, Iss 3, Pp 212-218 (2021) |
| Druh dokumentu: | article |
| ISSN: | 2177-3491 0034-737x |
| DOI: | 10.1590/0034-737x202168030007 |
| Popis: | ABSTRACT This study broadens the knowledge of plant-pathogen interactions using phytohormone-deficient and low-sensitivity mutant tomatoes. The experiment was performed under greenhouse conditions and the mutants used were provided by the HCPD laboratory, at ESALQ/USP. The hormone mutant Never ripe showed a larger final lesion size when inoculated with Botrytis cinerea, whereas curl3 was relatively resistant to this pathogen and more susceptible when inoculated with Phytophthora infestans. The transgenic 35S :: nahG was more susceptible to Oidium lycopersici, and the double mutant dgt, Nr more resistant. The low sensitivity to brassinosteroids confers greater susceptibility to P. infestans and higher resistance to B. cinerea. The deficiency of the hormone auxin promotes high resistance to diseases caused by O. lycopersici, P. infestans and B. cinerea. |
| Databáze: | Directory of Open Access Journals |
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