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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Responsiveness of entomopathogenic fungi to menadione-induced oxidative stress

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Azevedo, Rosana F. F. [1] ; Souza, Roberta K. F. [1] ; Braga, Gilberto U. L. [2] ; Rangel, Drauzio E. N. [1]
Total Authors: 4
[1] Univ Vale Paraiba, Inst Pesquisa & Desenvolvimento, BR-12244000 Sao Jose Dos Campos - Brazil
[2] Univ Sao Paulo, Fac Ciencias Farmaceut Ribeirao Preto, BR-14040903 Ribeirao Preto, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: FUNGAL BIOLOGY; v. 118, n. 12, p. 990-995, DEC 2014.
Web of Science Citations: 10

Entomopathogenic fungi are predisposed to ROS induced by heat and UV-A radiation when outside the insect host. When inside the host, they are subject to phagocytic cells that generate ROS to eliminate invading pathogens. The oxidative stress tolerance of the entomopathogenic fungi Aschersonia aleyrodis (ARSEF 430 and 10276), Aschersonia placenta (ARSEF 7637), Beauveria bassiana (ARSEF 252), Isaria fumosorosea (ARSEF 3889), Lecanicillium aphanocladii (ARSEF 6433), Metarhizium acridum (ARSEF 324), Metarhizium anisopliae (ARSEF 5749), Metarhizium brunneum (ARSEF 1187 and ARSEF 5626), Metarhizium robertsii (ARSEF 2575), Tolypocladium cylindrosporum (ARSEF 3392), Tolypocladium inflatum (ARSEF 4877), and Simplicillium lanosoniveum (ARSEF 6430 and ARSEF 6651) was studied based on conidial germination on a medium supplemented with menadione. Conidial germination was evaluated 24 h after inoculation on potato dextrose agar (PDA) (control) or PDA supplemented with menadione. The two Aschersonia species (ARSEF 430, 7637, and 10276) were the most susceptible fungi, followed by the two Tolypocladium species (ARSEF 3392 and 4877) and the M. acridum (ARSEF 324). Metarhizium brunneum (ARSEF 5626) and M. anisopliae (ARSEF 5749) were the most tolerant isolates with MIC 0.28 mM. All fungal isolates, except ARSEF 5626 and ARSEF 5749, were not able to germinate at 0.20 mM. (C) 2014 The British Mycological Society. Published by Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 12/15204-8 - Mechanistic study of the photodynamic inactivation of human and plant pathogenic fungi
Grantee:Gilberto Úbida Leite Braga
Support type: Regular Research Grants
FAPESP's process: 10/06374-1 - Visible light during growth enhances conidial tolerance to different stress conditions in fungi
Grantee:Drauzio Eduardo Naretto Rangel
Support type: Research Grants - Young Investigators Grants
FAPESP's process: 13/50518-6 - Stress related genes are induced by visible light during mycelial growth resulting in increased conidial tolerance to stress conditions
Grantee:Drauzio Eduardo Naretto Rangel
Support type: Regular Research Grants