A5025262103- Amphibian and Reptile Biology
- Microbial Metabolism and Applications
- Species Distribution and Climate Change
- Identification and Quantification in Food
- Turtle Biology and Conservation
- Alkaloids: synthesis and pharmacology
- Mosquito-borne diseases and control
- Animal Behavior and Reproduction
- Probiotics and Fermented Foods
- Study of Mite Species
- Marine Biology and Ecology Research
- Coral and Marine Ecosystems Studies
- Microbial Community Ecology and Physiology
- Bat Biology and Ecology Studies
- Vector-borne infectious diseases
University of California, Davis
2018-2024
Smithsonian Tropical Research Institute
2021
California State Polytechnic University
2016
Species with extensive geographical ranges pose special challenges to assessing drivers of wildlife disease, necessitating collaborative and large-scale analyses. The imperilled foothill yellow-legged frog ( Rana boylii ) inhabits a wide range variable conditions in rivers California Oregon (USA), is considered threatened by the pathogen Batrachochytrium dendrobatidis (Bd). To assess Bd infections over time space, we compiled 2000 datapoints from R. museum specimens (collected 1897–2005)...
Marine multicellular organisms host a diverse collection of bacteria, archaea, microbial eukaryotes, and viruses that form their microbiome. Such host-associated microbes can significantly influence the host’s physiological capacities; however, identity functional role(s) key members microbiome (“core microbiome”) in most marine hosts coexisting natural settings remain obscure. Also unclear is how dynamic interactions between immense standing pool genetic variation will affect ecosystems’...
Emerging infectious diseases are a growing threat to biodiversity worldwide. Outbreaks of the disease chytridiomycosis, caused by fungal pathogen Batrachochytrium dendrobatidis (Bd), implicated in decline and extinction numerous amphibian species. In Costa Rica, major event occurred 1987, more than two decades before this was discovered. The loss many species Rica is assumed be due Bd-epizootics, but there few studies that provide data from amphibians time leading up proposed epizootics....
Cold-tolerant bacteria are known to contaminate and cause defects in refrigerated foods. Defects food products can be observed as changes appearance, texture, and/or flavor that detract from the product's intended look, feel, or taste. Two distinct organisms were cultured blue pigmented soymilk tofu had been left opened expired a home refrigerator. The coloration was reproduced when isolates fresh, sterile soymilk. These strains also produced variety of colony color morphologies on different...
Violacein is a water-insoluble violet pigment produced by various Gram-negative bacteria. The compound and the bacteria that produce it have been gaining attention due to antimicrobial proposed antitumour properties of violacein possibility strains producing may broad industrial uses. Bacteria isolated from diverse environments including fresh ocean waters, glaciers, tropical soils, trees, fish skin amphibians. We report here isolation characterization six violacein-producing bacterial three...
Abstract Emerging infectious diseases are a growing threat to biodiversity worldwide. Outbreaks of the disease chytridiomycosis, caused by fungal pathogen Batrachochytrium dendrobatidis ( Bd ), have decline and extinction numerous amphibian species. In Costa Rica, major event occurred in 1987, more than two decades before this was discovered. The loss many species Rica is assumed be due -epizootics, but there few studies that provide data from amphibians time leading up proposed epizootics....