Index Catalog // ScholarsArchive@OSU

Steady-State Growth under Inorganic Carbon Limitation Conditions Increases Energy Consumption for Maintenance and Enhances Nitrous Oxide Production in Nitrosomonas europaea

Creator:: Mellbye, Brett L., Giguere, Andrew, Chaplen, Frank, Bottomley, Peter J., and Sayavedra-Soto, Luis A.
Abstract:: Nitrosomonas europaea is a chemolithoautotrophic bacterium that oxidizes ammonia (NH₃) to obtain energy for growth on carbon dioxide (CO₂) and can also produce nitrous oxide (N₂O), a greenhouse gas. We interrogated the growth, physiological, and transcriptome responses of N. europaea to conditions of replete (>5.2 mM) and limited inorganic carbon...
Resource Type:: Article

Thauera butanivorans sp. nov., a C₂–C₉ alkane-oxidizing bacterium previously referred to as ‘Pseudomonas butanovora’

Creator:: Dubbels, Bradley L., Sayavedra-Soto, Luis A., Bottomley, Peter J., and Arp, Daniel J.
Abstract:: The placement of ‘Pseudomonas butanovora’ in the genus Thauera was proposed previously, based on 16S rRNA gene sequence analysis, upon further studies of taxonomical characteristics. In this study, physiological characteristics and DNA–DNA reassociation data are presented and the transfer of ‘P. butanovora’ to the genus Thauera is proposed. The original...
Resource Type:: Article
Full Text:: bacterium previously referred to as ‘Pseudomonas butanovora’ Bradley L. Dubbels,1 Luis A. Sayavedra-Soto,1

Kinetic characterization of the soluble butane monooxygenase from Thauera butanivorans, formerly ‘Pseudomonas butanovora’

Creator:: Cooley, Richard B., Dubbels, Bradley L., Sayavedra-Soto, Luis A., Bottomley, Peter J., and Arp, Daniel J.
Abstract:: Soluble butane monooxygenase (sBMO), a three-component di-iron monooxygenase complex expressed by the C2–C9 alkane-utilizing bacterium Thauera butanivorans, was kinetically characterized by measuring substrate specificities for C1–C5 alkanes and product inhibition profiles. sBMO has high sequence homology with soluble methane monooxygenase (sMMO) and shares a similar substrate range, including gaseous and...
Resource Type:: Article
Full Text:: . Dubbels,2 Luis A. Sayavedra-Soto,2 Peter J. Bottomley3 and Daniel J. Arp2 Correspondence Daniel J. Arp

Identifying Potential Mechanisms Enabling Acidophily in the Ammonia-Oxidizing Archaeon "Candidatus Nitrosotalea devanaterra"

Creator:: Lehtovirta-Morley, Laura E., Sayavedra-Soto, Luis A., Gallois, Nicolas, Schouten, Stefan, Stein, Lisa Y., Prosser, James I., and Nicol, Graeme W.
Abstract:: Ammonia oxidation is the first and rate-limiting step in nitrification and is dominated by two distinct groups of microorganisms in soil: ammonia-oxidizing archaea (AOA) and ammonia-oxidizing bacteria (AOB). AOA are often more abundant than AOB and dominate activity in acid soils. The mechanism of ammonia oxidation under acidic conditions has...
Resource Type:: Article

Ca. Nitrososphaera and Bradyrhizobium are inversely correlated and related to agricultural practices in long-term field experiments

Creator:: Zhalnina, Kateryna, de Quadros, Patricia D., Gano, Kelsey A., Davis-Richardson, Austin, Fagen, Jennie R., Brown, Christopher T., Giongo, Adriana, Drew, Jennifer C., Sayavedra-Soto, Luis A., Arp, Daniel J., Camargo, Flavio A. O., Daroub, Samira H., Clark, Ian M., McGrath, Steve P., Hirsch, Penny R., and Triplett, Eric W.
Abstract:: Agricultural land management, such as fertilization, liming, and tillage affects soil properties, including pH, organic matter content, nitrification rates, and the microbial community. Three different study sites were used to identify microorganisms that correlate with agricultural land use and to determine which factors regulate the relative abundance of the microbial...
Resource Type:: Article
Full Text:: . Brown1, Adriana Giongo1, Jennifer C. Drew 1, Luis A. Sayavedra-Soto 3, Dan J. Arp3, Flavio A. O. Camargo

Effect of moisture, temperature, and sulfur dioxide on color of dried apples

Creator:: Sayavedra-Soto, Luis Alberto
Abstract:: When sulfur dioxide is used in commercial drying of fruits in combination with low storage temperatures, browning and microbial spoilage can be inhibited. However, the relationship between moisture level, storage temperature, and sulfur dioxide content on the color of dried fruit is not known; therefore the purpose of this research...
Resource Type:: Masters Thesis
Full Text:: , Temperature, and Sulfur Dioxide on Color of Dried Apples by Luis Alberto Sayavedra-Soto A THESIS

Inhibition of polyphenol oxidase by sulfur dioxide

Creator:: Sayavedra-Soto, Luis Alberto
Abstract:: Inhibition of polyphenol oxidase (PPO) by sulfur dioxide (SO₂) was studied using three different sources of PPO (banana, mushroom, and pear). Several methods to detect PPO activity were tested due to SO₂, interference in some of the assays. The method using 2-nitro-5-thiobenzoic acid (TNB) to react with the quinones was...
Resource Type:: Dissertation
Full Text:: Alberto Sayavedra Soto A THESIS submitted to Oregon State University in partial fulfillment of

Use of aliphatic n-alkynes to discriminate soil nitrification activities of ammonia-oxidizing thaumarchaea and bacteria

Creator:: Taylor, Anne E., Vajrala, Neeraja, Giguere, Andrew T., Gitelman, Alix I., Arp, Daniel J., Myrold, David D., Sayavedra-Soto, Luis, and Bottomley, Peter J.
Abstract:: Ammonia (NH₃)-oxidizing bacteria (AOB) and thaumarchaea (AOA) co-occupy most soils, yet no short-term growth-independent method exists to determine their relative contributions to nitrification in situ. Microbial monooxygenases differ in their vulnerability to inactivation by aliphatic n-alkynes, and we found that NH₃ oxidation by the marine thaumarchaeon Nitrosopumilus maritimus was unaffected...
Resource Type:: Article
Full Text:: . Regala, V. Lao, M. Land, L. Hauser, A. Hooper, M. Klotz, J. Norton, L. Sayavedra-Soto, D. Arciero, N

Complete genome sequence of Nitrosomonas sp. Is79, an ammonia oxidizing bacterium adapted to low ammonium concentrations

Creator:: Bollmann, Annette, Sedlacek, Christopher J., Norton, Jeanette, Laanbroek, Hendrikus J., Suwa, Yuichi, Stein, Lisa Y., Klotz, Martin G., Arp, Daniel J., Sayavedra-Soto, Luis, Lu, Megan, Bruce, David, Detter, Chris, Tapia, Roxanne, Han, James, Woyke, Tanja, Pitluck, Sam, Pennacchio, Len, Nolan, Matt, Land, Miriam L., Huntemann, Marcel, Deshpande, Shweta, Han, Cliff, Chen, Amy, Kyrpides, Nikos, Movromatis, Konstantinos, Markowitz, Victor, Szeto, Ernest, Ivonova, Natalia, Mikhailova, Natalia, Pagani, Ioanna, Pati, Amrita, Peters, Lin, Ovchinnikova, Galina, Goodwin, Lynne A., and Lucas, Susan M.
Abstract:: Nitrosomonas sp. Is79 is a chemolithoautotrophic ammonia-oxidizing bacterium that belongs to the family Nitrosomonadaceae within the phylum Proteobacteria. Ammonia oxidation is the first step of nitrification, an important process in the global nitrogen cycle ultimately resulting in the production of nitrate. Nitrosomonas sp. Is79 is an ammonia oxidizer of high...
Resource Type:: Article
Full Text:: Acids Res 2012; 40:D571. PubMed http://dx.doi.org/10.1093/nar/gkr1100 37. Arp D, Sayavedra-Soto L

From Perception to Planning : Adaptation in Flood-risk Communities

Creator:: Gomez, Luis A.
Abstract:: This research asserts that flood risk perception of individuals living in floodplains influences their preparedness for taking actions to protect themselves from flood hazards. The results of this research are backed up by quantitative analysis of survey responses of individuals living in floodplains of Corvallis, OR in the USA. The...
Resource Type:: Dissertation
Full Text:: responses of individuals living in floodplains of Corvallis, OR in the USA. The results confirm a

ScholarsArchive@OSU

Steady-State Growth under Inorganic Carbon Limitation Conditions Increases Energy Consumption for Maintenance and Enhances Nitrous Oxide Production in Nitrosomonas europaea

Thauera butanivorans sp. nov., a C₂–C₉ alkane-oxidizing bacterium previously referred to as ‘Pseudomonas butanovora’

Kinetic characterization of the soluble butane monooxygenase from Thauera butanivorans, formerly ‘Pseudomonas butanovora’

Identifying Potential Mechanisms Enabling Acidophily in the Ammonia-Oxidizing Archaeon "Candidatus Nitrosotalea devanaterra"

Ca. Nitrososphaera and Bradyrhizobium are inversely correlated and related to agricultural practices in long-term field experiments

Effect of moisture, temperature, and sulfur dioxide on color of dried apples

Inhibition of polyphenol oxidase by sulfur dioxide

Use of aliphatic n-alkynes to discriminate soil nitrification activities of ammonia-oxidizing thaumarchaea and bacteria

Complete genome sequence of Nitrosomonas sp. Is79, an ammonia oxidizing bacterium adapted to low ammonium concentrations

From Perception to Planning : Adaptation in Flood-risk Communities

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