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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.)

Exposure of Metarhizium acridum mycelium to light induces tolerance to UV-B radiation

Full text
Author(s):
Brancini, Guilherme T. P. [1] ; Rangel, Drauzio E. N. [2] ; Braga, Gilberto U. L. [1]
Total Authors: 3
Affiliation:
[1] Univ Sao Paulo, Fac Ciencias Farmaceut Ribeirao Preto, BR-14040903 Ribeirao Preto, SP - Brazil
[2] Univ Fed Goias, Inst Patol Trop Saude Publ, BR-74605050 Goiania, Go - Brazil
Total Affiliations: 2
Document type: Journal article
Source: FEMS Microbiology Letters; v. 363, n. 6 MAR 2016.
Web of Science Citations: 6
Abstract

Metarhizium acridum is an entomopathogenic fungus commonly used as a bioinsecticide. The conidium is the fungal stage normally employed as field inoculum in biological control programs and must survive under field conditions such as high ultraviolet-B (UV-B) exposure. Light, which is an important stimulus for many fungi, has been shown to induce the production of M. robertsii conidia with increased stress tolerance. Here we show that a two-hour exposure to white or blue/UV-A light of fast-growing mycelium induces tolerance to subsequent UV-B irradiation. Red light, however, does not have the same effect. In addition, we established that this induction can take place with as little as 1 min of white-light exposure. This brief illumination scheme could be relevant in future studies of M. acridum photobiology and for the production of UV-B resistant mycelium used in mycelium-based formulations for biological control. (AU)

FAPESP's process: 13/02486-8 - A proteomic approach for the identification of proteins related to stress tolerance in conidia of the entomopathogenic fungus Metarhizium acridum
Grantee:Guilherme Thomaz Pereira Brancini
Support Opportunities: Scholarships in Brazil - Master
FAPESP's process: 12/15204-8 - Mechanistic study of the photodynamic inactivation of human and plant pathogenic fungi
Grantee:Gilberto Úbida Leite Braga
Support Opportunities: 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 Opportunities: 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 Opportunities: Regular Research Grants