Conidial pigmentation is important to tolerance against solar-simulated radiation in the entomopathogenic fungus Metarhizium anisopliae

Photochemistry and Photobiology
Gilberto U L BragaDonald W Roberts

Abstract

The importance of conidial pigmentation to solar UV radiation tolerance in the entomopathogenic fungus Metarhizium anisopliae var. anisopliae, was estimated by comparing the effects of exposure to simulated solar UV radiation on the wild-type parent strain U.S. Department of Agriculture (USDA)-Agricultural Research Service (ARS) Collection of Entomopathogenic Fungal Cultures (ARSEF) 23, which has dark green conidia, and three groups of color mutants with yellow, purple and white conidia. The comparisons included inactivation levels and the kinetics of germination of conidia exposed or not exposed to simulated solar UV radiation. In addition to significantly inactivating the conidia of different mutants, exposure to radiation delayed for several hours the germination of surviving conidia of the wild type and all mutants. In general, mutants with white conidia were more sensitive to simulated solar UV radiation than mutants with purple conidia, which were more sensitive than mutants with yellow conidia, which in turn were more sensitive than the green wild strain. A significant variation in tolerance to simulated solar radiation was observed among mutants within each color group, particularly among mutants with yellow conidia. Re...Continue Reading

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Citations

Sep 4, 2008·Photochemistry and Photobiology·Letícia A SchiaveGilberto U L Braga
Feb 16, 2008·Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology·UNKNOWN Environmental Effects Assessment Panel
Apr 1, 2015·Current Genetics·Gilberto U L BragaDonald W Roberts
Jun 1, 2011·World Journal of Microbiology & Biotechnology·Carime MoraesDinalva Alves Mochi
Jul 19, 2012·World Journal of Microbiology & Biotechnology·Lúcio B CostaWagner Bettiol
Jun 24, 2015·Current Genetics·Drauzio E N RangelJohn E Hallsworth
Jun 28, 2015·Current Genetics·Drauzio E N RangelJohn E Hallsworth
Mar 5, 2019·Evolutionary Applications·E-Jiao WuJiasui Zhan
Jul 19, 2018·Journal of Invertebrate Pathology·Drauzio E N Rangel, Donald W Roberts
May 12, 2020·Fungal Biology·Claudinéia A S AraújoDrauzio E N Rangel
Jul 3, 2021·Journal of Photochemistry and Photobiology. B, Biology·B R OliveiraV J Pereira

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