WebNov 27, 2024 · Excess biomass not deposited with BIF would have deposited in coastal sediments, formed organic-rich shales, and fueled microbial methanogenesis. As a result, … WebTechniques used include cultivation of cyanobacteria and anaerobic photoferrotrophs, quantification of Fe2+, Fe3+ and Si using UV-Vis spectroscopy, wet geochemistry assays, organic compound extraction using ion exchange resin. Mentored undergraduate and graduate students. Designed, wrote and taught 2 geomicrobiology-focused, upper-year ...
A ‘jolt’ for ocean carbon sequestration - The Source - Washington ...
WebRecent work shows that freshwater photoferrotrophs can use electrons from solid-phase conductive substances via phototrophic extracellular electron uptake (pEEU), and the two processes share the underlying electron uptake mechanism. However, the ability of marine phototrophs to perform photoferrotrophy and pEEU, and the contribution of these ... WebMay 31, 2012 · In microcosms, photoferrotrophs instantly started oxidizing Fe(II), whilst nitrate-reducing Fe(II)-oxidizers showed a significant lag-phase during which they probably use organics as e(-) donor before initiating Fe(II) oxidation. This suggests that they will be outcompeted by phototrophic Fe(II)-oxidizers during optimal light conditions; as ... churches in florence az
Physiological Characterization of a Novel Photoferrotroph Utilizing …
WebPhotoferrotrophs thrive in an Archean Ocean analogue. Sean A. Crowe, Carri Ayne Jones, Sergei Katsev, Cedric Magen, Andrew H. O'Neill, Arne Sturm, Donald E. Canfield, G. … WebSep 8, 2015 · Photoferrotrophs may thus have fuelled Earth’s early biosphere providing energy to drive microbial growth and evolution over billions of years. Yet, photoferrotrophic activity has remained ... WebJun 5, 2009 · Genetic analyses suggest that photoferrotrophs are among Earth’s earliest microbes. These microbes live at a depth where light levels are between 0.005 and 0.01 … developing the young workforce inverness