Can the stress caused by temperature affect the grapevine rust pathosystem? Epidemiologic, physiological and histopathological analyses in Vitis labrusca 'Niagara Rosada' and V. vinifera 'Cabernet'

• Grant number: 19/15191-2
• Support Opportunities: Scholarships in Brazil - Master
• Effective date (Start): December 01, 2019
• Effective date (End): February 28, 2021
• Field of knowledge: Biological Sciences - Botany - Applied Botany
• Principal Investigator: Beatriz Appezzato da Glória
• Grantee: Júlia Boscariol Rasera
• Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
• Associated research grant: 13/24003-9 - Grape diseases: epidemiology, damage assessment and control, AP.TEM

Abstract

There is much talk today about global warming, and the latest assessment report of the Intergovernmental Panel on Climate Change has brought numerical evidence of the occurrence of changes in our atmosphere.The rise of temperature directly affects agriculture on a global level, whereas it influences the environment in which plant interactions with herbivores and pathogens occur.An example of this is plant diseases that have become important in places where they were not relevant or have the potential to do so if climate change intensifies. In this context, the rust group has shown increasing potential and relevance, such as soybean rust in the United States and wheat rust in Europe.Experiments with Phakopsora euvitis on vines (Vitis labrusca L.) 'Niagara Rosada', conducted by our team, have raised new questions about this plant-pathogen interaction. At temperatures of 20 to 25 ° C there is high germination rate of urediniospores and high severity, and at 30 ° C, even with the low germination of urediniospores, there is high severity, with the presence of necrosis. An intriguing fact, not only because of the absence of the relationship between spore germination rate and disease efficiency, but also due to the appearance of necrosis, hypersensitivity response, which is commonly associated with low severity. The aim of the proposal is to identify the changes caused by temperature in the plant-pathogen relationship between Phakopsora euvitis and two grapevine species, V. labrusca 'Niagara Rosada' and V. vinifera ' Cabernet '. (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)

RASERA, J. B.; AMORIM, L.; APPEZZATO-DA-GLORIA, B.. iverse effects of temperature on in vivo and in vitro germination of urediniospores of Neophysopella tropicali. European Journal of Plant Pathology, v. 162, n. 2, OCT 2021. (19/13191-5, 13/24003-9, 19/15191-2)

Academic Publications

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

RASERA, Júlia Boscariol. Effect of air temperature on the interaction of Neophysopella tropicalis and cv. Niagara Rosada and cv. Cabernet Sauvignon vines. 2021. Master's Dissertation - Universidade de São Paulo (USP). Escola Superior de Agricultura Luiz de Queiroz (ESALA/BC) Piracicaba.