M
Macarena Parra
Researcher at Ames Research Center
Publications - 28
Citations - 1170
Macarena Parra is an academic researcher from Ames Research Center. The author has contributed to research in topics: Payload & Spaceflight. The author has an hindex of 13, co-authored 27 publications receiving 975 citations.
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Journal ArticleDOI
Space flight alters bacterial gene expression and virulence and reveals a role for global regulator Hfq
James W. Wilson,C. M. Ott,K. Höner zu Bentrup,Rajee Ramamurthy,L. Quick,Steffen Porwollik,Pui Cheng,Michael McClelland,George Tsaprailis,Timothy R. Radabaugh,Andrea M. Hunt,D. Fernandez,Emily G. Richter,Miti Shah,Michelle Kilcoyne,Lokesh Joshi,Mayra Nelman-Gonzalez,S. Hing,Macarena Parra,P. Dumars,Kelly L.L. Norwood,R. Bober,J. Devich,A. Ruggles,Carla Goulart,Mark Rupert,Louis S. Stodieck,Phillip Stafford,L. Catella,Michael J. Schurr,Michael J. Schurr,Kent L. Buchanan,Kent L. Buchanan,Lisa A. Morici,James McCracken,James McCracken,Patricia L. Allen,Patricia L. Allen,C. Baker-Coleman,C. Baker-Coleman,Timothy G. Hammond,Timothy G. Hammond,Jörg Vogel,Randall W. Nelson,Duane L. Pierson,Heidemarie M. Stefanyshyn-Piper,C. A. Nickerson +46 more
TL;DR: Strategies to target Hfq and related regulators could potentially decrease infectious disease risks during space flight missions and provide novel therapeutic options on Earth.
Journal ArticleDOI
Spaceflight Promotes Biofilm Formation by Pseudomonas aeruginosa
Wooseong Kim,Farah K. Tengra,Zachary Young,Jasmine Shong,Nicholas Marchand,Hon Kit Chan,Ravindra C. Pangule,Macarena Parra,Jonathan S. Dordick,Joel L. Plawsky,Cynthia H. Collins +10 more
TL;DR: Pseudomonas aeruginosa was cultured during two Space Shuttle Atlantis missions, and the biofilms formed during spaceflight were characterized, representing the first evidence that spaceflight affects community-level behaviors of bacteria.
Journal ArticleDOI
Media Ion Composition Controls Regulatory and Virulence Response of Salmonella in Spaceflight
James W. Wilson,C. Mark Ott,Laura N. Quick,Laura N. Quick,Richard R. Davis,Kerstin Höner zu Bentrup,Aurélie Crabbé,Emily G. Richter,Shameema Sarker,Jennifer Barrila,Steffen Porwollik,Pui Cheng,Michael McClelland,George Tsaprailis,Timothy R. Radabaugh,Andrea M. Hunt,Miti Shah,Mayra Nelman-Gonzalez,Steve Hing,Macarena Parra,Paula Dumars,Kelly L.L. Norwood,Ramona Bober,Jennifer Devich,Ashleigh Ruggles,Autumn CdeBaca,Satro Narayan,Joseph Benjamin,Carla Goulart,Mark Rupert,Luke Catella,Michael J. Schurr,Kent L. Buchanan,Lisa A. Morici,James McCracken,Marc D. Porter,Duane L. Pierson,Scott M. Smith,Max Mergeay,Natalie Leys,Heidemarie M. Stefanyshyn-Piper,Dominic Gorie,Cheryl A. Nickerson +42 more
TL;DR: It is reported that spaceflight-induced increases in Salmonella virulence are regulated by media ion composition, and that phosphate ion is sufficient to alter related pathogenesis responses in a spaceflight analogue model.
Journal ArticleDOI
The O/OREOS Mission: First Science Data from the Space Environment Survivability of Living Organisms (SESLO) Payload
Wayne L. Nicholson,Antonio J. Ricco,Elwood Agasid,Christopher Beasley,Millan Diaz-Aguado,Pascale Ehrenfreund,Charles Friedericks,Shakib Ghassemieh,Michael B. Henschke,John W. Hines,Christopher Kitts,Ed Luzzi,Diana Ly,Nghia Mai,Rocco L. Mancinelli,Mike McIntyre,Giovanni Minelli,Michael A. Neumann,Macarena Parra,Matthew Piccini,R. Mike Rasay,Robert Ricks,O. Santos,Aaron Schooley,David Squires,Linda Timucin,Bruce Yost,Anthony Young +27 more
TL;DR: The first telemetered spaceflight science results from the orbiting SESLO experiment are reported, executed by one of the two 10 cm cube-format payloads aboard the O/OREOS free-flying nanosatellite.
Journal ArticleDOI
Effect of Spaceflight on Pseudomonas Aeruginosa Final Cell Density Is Modulated by Nutrient and Oxygen Availability
Wooseong Kim,Farah K. Tengra,Jasmine Shong,Nicholas Marchand,Hon Kit Chan,Zachary Young,Ravindra C. Pangule,Ravindra C. Pangule,Macarena Parra,Jonathan S. Dordick,Joel L. Plawsky,Cynthia H. Collins +11 more
TL;DR: Differences in bacterial final cell densities observed between spaceflight and normal gravity are due to an interplay between microgravity conditions and the availability of substrates essential for growth.