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Summary Chemolithoautotrophic bacteria from the genera Hydrogenovibrio, Thiomicrorhabdus and Thiomicrospira are common, sometimes dominant, isolates from sulfidic habitats including hydrothermal vents, soda and salt lakes and marine sediments. Their genome sequences confirm their membership in a deeply branching clade of the Gammaproteobacteria . Several adaptations to heterogeneous habitats are apparent. Their genomes include...
Seeing the world differently: variability in the photosensory mechanisms of two model fungiNARA Subscribed
Summary Light plays an important role for most organisms on this planet, serving either as a source of energy or information for the adaptation of biological processes to specific times of day. The fungal kingdom is estimated to contain well over a million species, possibly 10‐fold more, and it is estimated that a majority of the fungi respond to light, eliciting changes in several physiological characteristics including patho...
Incorporating Climate and Ocean Change into Extinction Risk Assessments for 82 Coral SpeciesNARA Subscribed
Many marine invertebrate species facing potential extinction have uncertain taxonomies and poorly known demographic and ecological traits. Uncertainties are compounded when potential extinction drivers are climate and ocean changes whose effects on even widespread and abundant species are only partially understood. The U.S. Endangered Species Act mandates conservation management decisions founded on the extinction risk to spec...
Comparison of biosurfactant detection methods reveals hydrophobic surfactants and contact‐regulated productionNARA Subscribed
Summary Biosurfactants are diverse molecules with numerous biological functions and industrial applications. A variety of environments were examined for biosurfactant‐producing bacteria including soil, water and leaf surfaces. Biosurfactant production was assessed with an atomized oil assay for a large number of bacterial isolates and compared with a commonly used drop collapse assay from broth and plate cultures. The atomized...
Responses to iron limitation in two colonies of Stylophora pistillata exposed to high temperature: Implications for coral bleachingNARA Subscribed
Exposing the coral Stylophora pistillata to seawater depleted in available iron by complexation with the strong chelator desferrioxamine B reduces the photosynthetic efficiency and alters the pigment composition in its symbiotic algae at high temperatures. Similar effects of iron limitation are known for free‐living algae, but this is the first demonstration of low‐iron stress in a dinoflagellate living endosymbiotically. Main...