Effect of temperature on the phytotoxicity and cytotoxicity of Botryosphaeriaceae fungi

被引:12
|
作者
Pour, Forough Nazar [1 ]
Ferreira, Vanessa [1 ]
Felix, Carina [1 ]
Serodio, Joao [1 ]
Alves, Artur [1 ]
Duarte, Ana Sofia [1 ,2 ]
Esteves, Ana Cristina [1 ,2 ]
机构
[1] Univ Aveiro, Dept Biol, CESAM, Campus Univ Santiago, P-3810193 Aveiro, Portugal
[2] Univ Catolica Portuguesa, Ctr Interdisciplinary Res Hlth CIIS, Fac Dent Med, Estr Circunvalacao, P-3504505 Viseu, Portugal
关键词
Chorophyll fluorescence imaging; Climate change; Human opportunistic pathogens; Phytopathogenic fungi; EUCALYPTUS-GLOBULUS PLANTATIONS; LASIODIPLODIA-THEOBROMAE; CHLOROPHYLL FLUORESCENCE; PATHOGENS; DIVERSITY; DIEBACK; METABOLITES; INFECTION; KERATITIS; TREES;
D O I
10.1016/j.funbio.2020.02.012
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
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 degrees C were phytotoxic: symptoms were evaluated based on visual inspection of necrosis areas and on the maximum quantum yield of photosystem II, F-v/F-m. Diplodia corticola and Neofusicoccum kwambonambiense were the most phytotoxic, followed by Neofusicoccum parvum CAA704 and Botryosphaeria dothidea. Phytotoxicity dramatically decreased when strains were grown at 37 degrees C, except for B. dothidea. All strains, except N. parvum CAA366 and Neofusicoccum eucalyptorum, grown either at 25 degrees C or 37 degrees C, were toxic to mammalian cells; at 25 degrees C and at 37 degrees 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. (C) 2020 British Mycological Society. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:571 / 578
页数:8
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