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http://hdl.handle.net/10773/37072
Title: | Effect of temperature on the phytotoxicity and cytotoxicity of Botryosphaeriaceae fungi |
Author: | Nazar Pour, Forough Ferreira, Vanessa Félix, Carina Serôdio, João Alves, Artur Duarte, Ana Sofia Esteves, Ana Cristina |
Keywords: | Chorophyll fluorescence imaging Climate change Human opportunistic pathogens Phytopathogenic fungi |
Issue Date: | Jun-2020 |
Publisher: | Elsevier |
Abstract: | Botryosphaeriaceae fungi are phytopathogens and human opportunists. The influence of temperature on the phytotoxicity and cytotoxicity of culture filtrates of five Botryosphaeriaceae species was investigated. All culture filtrates of fungi grown at 25 °C were phytotoxic: symptoms were evaluated based on visual inspection of necrosis areas and on the maximum quantum yield of photosystem II, Fv/Fm. Diplodiacorticola and Neofusicoccum kwambonambiense were the most phytotoxic, followed by Neofusicoccum parvum CAA704 and Botryosphaeria dothidea. Phytotoxicity dramatically decreased when strains were grown at 37 °C, except for B. dothidea. All strains, except N. parvum CAA366 and Neofusicoccum eucalyptorum, grown either at 25 °C or 37 °C, were toxic to mammalian cells; at 25 °C and at 37°C, D. corticola and B. dothidea were the most cytotoxic, respectively. Although the toxicity of B. dothidea to both cell lines and of N. kwambonambiense to Vero cells increased with temperature, the opposite was found for the other species tested. Our results suggest that temperature modulates the expression of toxic compounds that, in a scenario of a global increase of temperature, may contribute to new plant infections but also human infections, especially in the case of B. dothidea. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/37072 |
DOI: | 10.1016/j.funbio.2020.02.012 |
ISSN: | 1878-6146 |
Appears in Collections: | CESAM - Artigos DBio - Artigos |
Files in This Item:
File | Description | Size | Format | |
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Effect of temperature on the phytotoxicity and cytotoxicity of Botryosphaeriaceae.pdf | 1.73 MB | Adobe PDF | View/Open |
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