SLIME Team People

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The SLIME Team


Diana Northup
University of New Mexico

Diana at the Head of Boulder Falls in Lechugilla Cave, New Mexico.

Diana Northup has been studying things that live in caves since 1984. She has a Ph.D. in Biology from the University of New Mexico. She and her colleagues on the SLIME (Subsurface Life In Mineral Environments) Team are investigating how microbes help form the colorful ferromanganese deposits that coat the walls of Lechuguilla and Spider Cave in Carlsbad Caverns National Park (funded by the National Science Foundation Life in Extreme Environments Program); how these deposits compare to surface desert/rock varnish coatings (funded by the NSF Geosciences Directorate); how microbes participate in the precipitation of calcium carbonate formations called pool fingers; and the microbial diversity located in the hydrogen sulfide cave, Cueva de las Sardinas in Tabasco, Mexico. Diana has been honored by having her work featured on NOVA and by being asked to serve as a Guest Editor for Geomicrobiology Journal for a special issue on Geomicrobiology of Caves. She is also the recipient of a Charles A. and Anne Morrow Lindbergh Foundation grant to study the impact of humans on microbial populations in caves. Currently, Diana blends the best of both worlds by teaching biology students information searching skills in Centennial Library at the University of New Mexico, where she is a Professor Emerita, and by actively researching cave microbial ecology using molecular and microscopy techniques. She is also a Visiting Associate Professor of Biology and guest lectures in various Biology courses and teaches a Freshman Learning Community, The World of Microbes.

Diana has been interviewed by Teresa Dow. Diana's Curriculum Vita and a list of honors is also online.

Penelope J. Boston
New Mexico Tech

Penelope Boston sampling in Spider Cave. Photo by Kenneth Ingham.

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Penny's Web site

Kim Plymale wrote story about Penelope Boston.

Michael Spilde
University of New Mexico

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Michael's web page.

Michael has been interviewed by Teresa Dow.

Leslie Melim
Western Illinois University

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Leslie's web page.

Clifford N. Dahm
University of New Mexico

Cliff Dahm in Spider Cave. Photo by Kenneth Ingham.

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Teresa Dow interviewed him.

Laura J. Crossey
University of New Mexico

Laura Crossey in Spider Cave. Photo by Kenneth Ingham.

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Teresa Dow interviewed her.

SLIME Team Associates


Kathleen H. Lavoie
SUNY Plattsburgh
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Lawrence M. Mallory
Biomes, Inc.
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Louise Hose
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Carlos Alberto Cordero Martinez
Kolem Ja, Tabasco, Mexico
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Alejadra Alvarada Zink
Universum Science Museum
University City, Mexico D.F.
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SLIME Team Students


Armand Dichosa
Ph.D. Student
University of New Mexico
Armand E. Dichosa joined the University of New Mexico's Department of Biology in 2001 as a Masters student researching evolution in the euryarchaeote Methanospirillum hungatei, using the cell-division protein, FtsZ, as a molecular marker. After receiving his M.S. in 2004, he continued his academic career with the department in pursuit of a Ph.D. under Doctors Diana Northup and Larry L. Barton. He now investigates the biogenecity of ferromanganese deposits (FMD) in karst cave systems. Spider Cave in Carlsbad Caverns National Park, NM, is the primary site for his studies. It is known that FMD, which coats the cave walls with a wide array of colors, are the metabolic products of microbially influenced iron and manganese oxidation (forming Fe3+ and Mn4+). The basic questions of Armand's research asks: 1) Who are the microbes that comprise the variant FMD color communities?; 2) Of the ones identified, which ones are known iron and manganese oxidizers?; 3) Is there a correlation across the different FMD communities with regards to species number, common species, and dominant species?; and, 4) How are these microorganisms able to acquire their nutrients from their chemolithotrophic environment? Armand employs molecular approaches (PCR, DGGE (denaturing gradient gel electrophoresis), sequencing), classic-culturing studies, and advanced microscopy techniques (SEM (scanning electron microscopy), EDS (energy dispersive spectroscopy) to help address these questions. Armand has received partial funding from UNM's Student and Graduate Research Allocations Committees, Grove Summer Research Scholarship (2006), the New Mexico Geological Society of America Kottlowski Fellowship (2007), and is a two-time recipient of NASA's New Mexico Space Grant Consortium Fellowship (2007, 2008). Throughout his graduate career, Armand has been active in educating biology undergraduates and has mentored students interested in laboratory research. He was a teaching assistant in microbial cultures, genetics problem-based sessions, the Biology Department's Molecular Biology Facility, co-instructed a course in Microbial Diversity and Evolution, and has TAd ten semesters of Microbiology Lab for both Biology and Health-Science majors. Armand was nominated for the Gunter-Starkey Graduate Student of the Year Award (2004), and won Best Graduate Research Poster (2006) and Best Graduate Research Presentation (2007) from the Rio Grande Branch of the American Society for Microbiology.
Jessica Snider
Ph.D. Student, University of New Mexico
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Ara Kooser
Soon-to-be Ph.D. Student, University of New Mexico
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Megan Curry
Ph.D. Student, New Mexico Tech
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Aurora Auwen
Undergraduate, University of New Mexico
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Monica Moya
Undergraduate, University of New Mexico
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Matt Garcia
Undergraduate, University of New Mexico
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Marco Terrazas
Undergraduate, University of New Mexico
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Nwamaka Nwagbologu
Undergraduate, University of New Mexico
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Past SLIME Team Students


Andi Hunter
Former student at the University of New Mexico in the Water Resources Master's Program
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Rachel Schelbe
Former undergraduate student at the University of New Mexico
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Kathy Dano (formerly Kathy Dotson)
Former undergraduate student at the University of New Mexico
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Kathy's web site.

Donna Pham
Former undergraduate student at the University of New Mexico
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Past SLIME Team Staff


Laura Yu (previously, Laura Bean)
University of Michigan
Former technician in Diana Northup's Lab at The University of New Mexico
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April Wright
National Clonal Germplasm Repository
USDA-ARS
Corvallis, OR
Former research scientist I in Diana Northup's Lab at The University of New Mexico
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Past SLIME Team Associates


Jody van de Kamp
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Sue Barns
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SLIME Team Friends


Morgan Perrone
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Morgan's autobiography

William White
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An interview with William and Betty White


This web site Copyright 2007, Kenneth Ingham