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Publications

Schadt, C.W., R.B. Mullen and S.K. Schmidt. 2001. Isolation and phylogenetic identification of a dark-septate fungus associated with the alpine plant Ranunculus adoneus. New Phytologist 150:747-755.

Ley, R.E., D.A. Lipson and S.K. Schmidt. 2001. Microbial biomass levels in barren and vegetated high altitude talus soils. Soil Sci. Soc. Am. J. 65: 111-117.

Schmidt, S.K., A.E. West, P.D. Brooks, L. Smith, C. Jaeger, M.C. Fisk and E. Holland. 2001. Soil-atmosphere gas exchange across an alpine tundra landscape, In Alpine Dynamics: The structure and function of an alpine ecosystem. (W. Bowman and T. Seastedt, eds.). Oxford University Press.

Gonzalez, G., R.E. Ley, S.K. Schmidt, X. Zou and T.R. Seastedt. 2001. Soil ecological interactions: Comparisons between tropical and subalpine forests. Oecologia (In Press).

Lipson, D.A., S.K. Schmidt and R.K. Monson. 2000. An empirical model of amino acid transformations in alpine soil. Soil Biol. Biochem. 33: 189-198.

Fisk, M.C., P.D. Brooks and S.K. Schmidt. 2001. Nitrogen cycling in an alpine ecosystem. In Alpine Dynamics: The structure and function of an alpine ecosystem, Niwot Ridge, Colorado. (W. Bowman and T. Seastedt, eds.). Oxford University Press.

Schmidt, S.K. and D.L. Lipson. 2001. Kinetics of Microbial Processes and Growth in Soil. IN Encyclopedia of Environmental Microbiology. Wiley Publ., New York

Lipson, D.A., S.K. Schmidt and R.K. Monson. 2000. Carbon availability and temperature control the post-snowmelt decline in alpine soil microbial biomass. Soil Biol. Biochem. 32: 441-448.

Schmidt, S.K. and K.M. Scow. 2001. Use of Bioreactors and Microcosms to assess the biodegradation potential of soils. IN Manual of environmental microbiology (2nd. ed.). (M.V. Walter et al., eds.). American Society for Microbiology Press, Washington D.C.

Schmidt, S.K., D.A. Lipson and T.K. Raab. 2000. Effects of willows (Salix brachycarpa) on populations of salicylate-mineralizing microorganisms in alpine soils. J. Chem. Ecol. 26: 2049-2057.

Colores, G.M. and S.K. Schmidt. 1999. Colonization of contaminated soil by an introduced bacterium: effects of initial pentachlorophenol levels on the survival of Sphingomonas chlorophenolica strain RA2. J. Indust. Microbiol. & Biotechnol. 23: 326-331.

West, A.E. and S.K. Schmidt. 1999. Acetate stimulates atmospheric CH4 oxidation by an alpine tundra soil. Soil Biol. Biochem. 31: 1649-1655.

Schmidt, S.K. and R. Ley. 1999. Microbial competition and bioavailability limit the expression of allelochemicals in natural soils. In Principles and Practices in Plant Ecology: Allelochemical Interactions. (S. Inderjit, K.M. Dakshini & C.L. Foy, eds.). CRC Press, Boca Raton. West, A.E. and S.K. Schmidt. 1998. Wetting stimulates atmospheric methane oxidation in alpine soils. FEMS Microbiol. Ecol. 25: 349-353.

Lipson, D.A., S.K. Schmidt, & R.K. Monson. 1998. Links between microbial population dynamics and nitrogen availability in an alpine ecosystem. Ecology 80: 1623-1631.

Lipson, D.A., S.K. Schmidt, C. Schadt & R.K. Monson. 1999. Mycorrhizal transfer of amino acid-N to the alpine sedge, Kobresia myosuroides. New Phytol. 142: 163-167.

Fisk, M.C., S.K. Schmidt and T. Seastedt. 1998. Topographic patterns of above- and belowground production and nitrogen cycling in alpine tundra. Ecology 79: 2253-2266.

West, A.E., P.D. Brooks, M.C. Fisk, L. Smith, E. Holland, C.H. Jaeger, S. Babcock, R. Kai and S.K. Schmidt. 1999. Landscape patterns of CH4 fluxes in an alpine tundra ecosystem. Biogeochemistry 45: 243-264.

Wickland, K.P., R.G. Striegl, S.K. Schimdt and M.A. Mast. 1999. Methane flux in subalpine wetland and unsaturated soils in the southern Rocky Mountains. Global Biogeochemical Cycles 13: 101-113.

Brooks, P.D., M.W. Williams and S.K. Schmidt. 1998. Inorganic N and microbial biomass dynamics before and during spring snowmelt. Biogeochemistry 43: 1-15.

Mullen, R.B. and S.K. Schmidt. 1998. Nitrogen uptake during snowmelt by fungi associated with Rannunculus adoneus. Arctic & Alpine Res. 30:121-125.

Jaeger, C.H. III, Monson, R.K., Fisk, M.C., and Schmidt, S.K. 1998. Interaction of plants and microorganisms in the partitioning of soil nitrogen in an alpine ecosystem. Ecology 80: 1883-1891.

Brooks, P.D., S.K. Schmidt and M.W. Williams. 1997. Winter production of CO2 and N2O from alpine tundra: environmental controls and relationship to inter-system C and N fluxes. Oecologia 110: 403-413

Colores, G.M., S.K. Schmidt and M.C. Fisk. 1996. Estimating the biomass of microbial functional groups using rates of growth-related soil respiration. Soil Biol. Biochem. 28: 1569-1577.

Schmidt, S.K. and K.M. Scow. 1996. Use of soil bioreactors and microcosms in bioremediation research. Chapter 16, In Manual of environmental microbiology. (M.V. Walter, ed.). American Society for Microbiology Press, Washington D.C.

Fisk, M.C. and S.K. Schmidt. 1996. Microbial responses to nitrogen additions in alpine tundra soils. Soil Biol. Biochem. 28: 751-755.

Bowman, W.D., J.C. Schardt and S.K. Schmidt. 1996. Symbiotic N2 fixation in alpine tundra: Ecosystem input and variation in fixation rates among communities. Oecologia 108: 345-350.

Hess, T.F., S.K. Schmidt and G.M. Colores. 1996. Maintenance energy model for microbial degradation of toxic chemicals in soil. Soil Biol. Biochem. 28: 907-915.

Brooks, P.D., M.W. Williams and S.K. Schmidt. 1996. Microbial activity under alpine snowpacks. Biogeochemistry 32: 93-113

Fisk, M.C. and S.K. Schmidt. 1995. Nitrogen mineralization and microbial biomass N dynamics in three alpine tundra communities. Soil Sci. Soc. Am. J. 59: 1036-1043.

Schmidt, S.K., G.M. Colores, T.F. Hess and P.M. Radehaus. 1995. A simple method for quantifying activity and survival of microorganisms involved in bioremediation processes Appl. Biochem. Biotechnol. 54: 259-270.

Brooks, P.D., M.W. Williams, D.A. Walker and S.K. Schmidt. 1995. The Niwot Ridge snow fence experiment: biogeochemical responses to changes in the seasonal snowpack. pp. 293-302. In Biogeochemistry in seasonally covered catchments, (K.A. Tonnessen, M.W. Williams and M. Tranter, eds.)

Hess, T.F. and S.K. Schmidt. 1995. Improved procedure for obtaining statistically valid parameter estimates from soil respiration data. Soil Biol. Biochem. 27: 1-7.

Brooks, P.D., M.W. Williams and S.K. Schmidt. 1995. Snowpack controls on soil nitrogen dynamics in the Colorado alpine. pp. 283-292. In Biogeochemistry in seasonally covered catchments, (K.A. Tonnessen, M.W. Williams and M. Tranter, eds.) IAHS Publications.

Colores, G.M., P.M. Radehaus and S.K. Schmidt. 1995. Use of a pentachlorophenol degrading bacterium to bioremediate heavily contaminated soil. Appl. Biochem. Biotechnol. 54: 271-275.

Neff, J.C., W.D. Bowman, E.A. Holland, M.C. Fisk and S.K. Schmidt. 1994. Fluxes of nitrous oxide and methane from nitrogen amended soils in the Colorado Alpine. Biogeochemistry 27: 23-33

Brooks, P.D., S.K. Schmidt, D. Sommerfeld and R. Musselman. 1994. Distribution and abundance of microbial biomass in Rocky Mountain spring snowpacks. Proc. E. Snow Conference. 50: 301-306.

Mullen, R.B. and S.K. Schmidt. 1993. Mycorrhizal infection, phosphorus uptake, and phenology in Ranunculus adoneus : Implications for the functioning of mycorrhizae in alpine systems. Oecologia 94: 229-234.

Hess, T.F., J. Silverstein and S.K. Schmidt. 1993. Effect of glucose on 2,4-dinitrophenol biodegradation kinetics in sequencing batch reactors. Wat. Environ. Res. 65: 73-81.

Schmidt, S.K. 1992. A substrate-induced growth-response method for estimating the biomass of microbial functional groups in soil and aquatic systems. FEMS Microbiol. Ecol. 101: 197-206.

Schmidt, S.K. 1992. Models for studying the population ecology of microorganisms in natural systems. pp. 31-59 In C.J. Hurst (ed.), Modeling the metabolic and physiologic activities of microorganisms. John Wiley & Sons, New York.

Radehaus, P.M. and S.K. Schmidt. 1992. Characterization of a novel Pseudomonas sp. that mineralizes high concentrations of pentachlorophenol. Appl. Environ. Microbiol. 58: 2879-2885.

Schmidt, S.K. 1990. Ecological implications of the destruction of juglone (5-hydroxy-1,4-naphthoquinone) by soil bacteria. J. Chem. Ecol. 16: 3547-3549.

Schmidt, S.K., R. Smith, D. Sheker, T.F. Hess, J. Silverstein and P.M. Radehaus. 1992. Interactions of microflagellates and bacteria in sequencing batch reactors exhibiting enhanced mineralization of toxic organic chemicals. Microb. Ecol. 23: 127-142.

Schmidt, S.K. and M.J. Gier. 1990. Coexisting bacterial populations responsible for multi-phasic mineralization kinetics in soil. Appl. Environ. Microbiol. 56: 2692-2697.

Hess, T., S.K. Schmidt, J. Silverstein and B. Howe. 1990. Supplemental substrate enhancement of 2,4-dinitrophenol mineralization by a bacterial consortium. Appl. Environ. Microbiol. 56: 1551-1558.

Silverstein, J., M. Bowman, T. Hess, S.K. Schmidt and B. Howe. 1990. 2,4-dinitrophenol degradation and sludge floc size. Environ. Proc. A.S.C.E. 205-212.

Schmidt, S.K. and M.J. Gier. 1989. Dynamics of microbial populations in soil: indigenous microorganisms degrading 2,4-dinitrophenol. Microb. Ecol. 18: 285-296.

Schmidt, S.K. and F.B. Reeves. 1989. Interference between Salsola kali L. seedlings: Implications for plant succession. Plant and Soil 116: 107-110.

Scow, K.M., S.K. Schmidt and M. Alexander. 1989. Kinetics of biodegradation of mixtures of substrates in soil. Soil Biol. Biochem. 21: 703-708.

Schmidt, S.K. 1988. Degradation of juglone by soil bacteria. J. Chem. Ecol. 14: 1561-1571.

Schmidt, S.K., K.M. Scow and M. Alexander. 1987. Kinetics of para-nitrophenol mineralization by a Pseudomonas sp.: Effects of second substrates. Appl. Environ. Microbiol. 53: 2617-2623.

Schmidt, S.K. and K.M. Scow. 1986. Mycorrhizal fungi on the Galapagos Islands. Biotropica 18: 236-240.

Schmidt, S.K., M. Alexander and M.L. Shuler. 1985. Predicting threshold concentrations of organic substrates for bacterial growth. J. Theor. Biol. 114: 1-8.

Schmidt, S.K., S. Simkins and M. Alexander. 1985. Models for the kinetics of biodegradation of organic compounds not supporting growth. Appl. Environ. Microbiol. 50: 323-331.

Schmidt, S.K. and M. Alexander. 1985. Effects of dissolved organic carbon and second substrates on the mineralization of low concentrations of organic compounds. Appl. Environ. Microbiol. 49: 822-827.

Rubin, H. and S.K. Schmidt. 1985. Growth of phenol-mineralizing microorganisms in freshwater. Appl. Environ. Microbiol. 49: 11-14.

Pimentel, D., C. Fried, L. Olson, S.K. Schmidt, K. Wagner-Johnson, A.Westman, A. Whelan, K. Foglia, P. Poole, T. Klein, R. Sobin, and A. Bochner. 1984. Environmental and social costs of biomass energy. BioScience 34: 89-94.

Schmidt, S.K. and F.B. Reeves. 1984. Effect of the non-mycorrhizal pioneer plant Salsola kali L. (Chenopodiaceae) on vesicular-arbuscular mycorrhizal (VAM) fungi. Amer. J. Bot. 71: 1035-1039.

Miller, R.M., T.B. Moorman, and S.K. Schmidt. 1983. Interspecific plant association effects on vesicular-arbuscular mycorrhizal fungi. New Phytol. 95: 241-246.




Web Links Dept of EPOB Home CU Boulder Home Chinook Catalog Institute for Alpine and Arctic Research Mountain Research Station Tundra Cam Niwot Ridge Long-term Ecological Research Microbe Zoo Soil Ecology Society American Society for Microbiology The Microbial Genome Project NSF News Mycorriza Information Exchange	Steve Schmidt	email: schmidts@spot.colorado.edu Lester's Cat Box
	CV (07/01) Address: Dept. of Environmental, Population and Organismic Biology Campus Box 334 University of Colorado Boulder, Colorado 80309 phone: (303) 492-6248 FAX: (303) 492-8699 e-mail: schmidts@spot.colorado.edu Education: Ph. D. Microbiology, Cornell University M. S. Mycology, Colorado State University B. S. (Magna Cum Laude) Biology, Boise State University Experience: 2000-present: Professor, Dept. of EPO Biology, U. Colorado. 1997-2001: Assoc. Chair and director of Graduate Studies, EPOB 1994-2000: Assoc. Professor, Dept. of EPO Biology, U. Colorado 1987-1994: Asst. Professor, Dept. of EPO Biology Dept. Professional Societies: American Society for Microbiology The Soil Ecology Society Soil Science Society of America American Geophysical Union Publications Schadt, C.W., R.B. Mullen and S.K. Schmidt. 2001. Isolation and phylogenetic identification of a dark-septate fungus associated with the alpine plant Ranunculus adoneus. New Phytologist 150:747-755. Ley, R.E., D.A. Lipson and S.K. Schmidt. 2001. Microbial biomass levels in barren and vegetated high altitude talus soils. Soil Sci. Soc. Am. J. 65: 111-117. Schmidt, S.K., A.E. West, P.D. Brooks, L. Smith, C. Jaeger, M.C. Fisk and E. Holland. 2001. Soil-atmosphere gas exchange across an alpine tundra landscape, In Alpine Dynamics: The structure and function of an alpine ecosystem. (W. Bowman and T. Seastedt, eds.). Oxford University Press. Gonzalez, G., R.E. Ley, S.K. Schmidt, X. Zou and T.R. Seastedt. 2001. Soil ecological interactions: Comparisons between tropical and subalpine forests. Oecologia (In Press). Lipson, D.A., S.K. Schmidt and R.K. Monson. 2000. An empirical model of amino acid transformations in alpine soil. Soil Biol. Biochem. 33: 189-198. Fisk, M.C., P.D. Brooks and S.K. Schmidt. 2001. Nitrogen cycling in an alpine ecosystem. In Alpine Dynamics: The structure and function of an alpine ecosystem, Niwot Ridge, Colorado. (W. Bowman and T. Seastedt, eds.). Oxford University Press. Schmidt, S.K. and D.L. Lipson. 2001. Kinetics of Microbial Processes and Growth in Soil. IN Encyclopedia of Environmental Microbiology. Wiley Publ., New York Lipson, D.A., S.K. Schmidt and R.K. Monson. 2000. Carbon availability and temperature control the post-snowmelt decline in alpine soil microbial biomass. Soil Biol. Biochem. 32: 441-448. Schmidt, S.K. and K.M. Scow. 2001. Use of Bioreactors and Microcosms to assess the biodegradation potential of soils. IN Manual of environmental microbiology (2nd. ed.). (M.V. Walter et al., eds.). American Society for Microbiology Press, Washington D.C. Schmidt, S.K., D.A. Lipson and T.K. Raab. 2000. Effects of willows (Salix brachycarpa) on populations of salicylate-mineralizing microorganisms in alpine soils. J. Chem. Ecol. 26: 2049-2057. Colores, G.M. and S.K. Schmidt. 1999. Colonization of contaminated soil by an introduced bacterium: effects of initial pentachlorophenol levels on the survival of Sphingomonas chlorophenolica strain RA2. J. Indust. Microbiol. & Biotechnol. 23: 326-331. West, A.E. and S.K. Schmidt. 1999. Acetate stimulates atmospheric CH4 oxidation by an alpine tundra soil. Soil Biol. Biochem. 31: 1649-1655. Schmidt, S.K. and R. Ley. 1999. Microbial competition and bioavailability limit the expression of allelochemicals in natural soils. In Principles and Practices in Plant Ecology: Allelochemical Interactions. (S. Inderjit, K.M. Dakshini & C.L. Foy, eds.). CRC Press, Boca Raton. West, A.E. and S.K. Schmidt. 1998. Wetting stimulates atmospheric methane oxidation in alpine soils. FEMS Microbiol. Ecol. 25: 349-353. Lipson, D.A., S.K. Schmidt, & R.K. Monson. 1998. Links between microbial population dynamics and nitrogen availability in an alpine ecosystem. Ecology 80: 1623-1631. Lipson, D.A., S.K. Schmidt, C. Schadt & R.K. Monson. 1999. Mycorrhizal transfer of amino acid-N to the alpine sedge, Kobresia myosuroides. New Phytol. 142: 163-167. Fisk, M.C., S.K. Schmidt and T. Seastedt. 1998. Topographic patterns of above- and belowground production and nitrogen cycling in alpine tundra. Ecology 79: 2253-2266. West, A.E., P.D. Brooks, M.C. Fisk, L. Smith, E. Holland, C.H. Jaeger, S. Babcock, R. Kai and S.K. Schmidt. 1999. Landscape patterns of CH4 fluxes in an alpine tundra ecosystem. Biogeochemistry 45: 243-264. Wickland, K.P., R.G. Striegl, S.K. Schimdt and M.A. Mast. 1999. Methane flux in subalpine wetland and unsaturated soils in the southern Rocky Mountains. Global Biogeochemical Cycles 13: 101-113. Brooks, P.D., M.W. Williams and S.K. Schmidt. 1998. Inorganic N and microbial biomass dynamics before and during spring snowmelt. Biogeochemistry 43: 1-15. Mullen, R.B. and S.K. Schmidt. 1998. Nitrogen uptake during snowmelt by fungi associated with Rannunculus adoneus. Arctic & Alpine Res. 30:121-125. Jaeger, C.H. III, Monson, R.K., Fisk, M.C., and Schmidt, S.K. 1998. Interaction of plants and microorganisms in the partitioning of soil nitrogen in an alpine ecosystem. Ecology 80: 1883-1891. Brooks, P.D., S.K. Schmidt and M.W. Williams. 1997. Winter production of CO2 and N2O from alpine tundra: environmental controls and relationship to inter-system C and N fluxes. Oecologia 110: 403-413 Colores, G.M., S.K. Schmidt and M.C. Fisk. 1996. Estimating the biomass of microbial functional groups using rates of growth-related soil respiration. Soil Biol. Biochem. 28: 1569-1577. Schmidt, S.K. and K.M. Scow. 1996. Use of soil bioreactors and microcosms in bioremediation research. Chapter 16, In Manual of environmental microbiology. (M.V. Walter, ed.). American Society for Microbiology Press, Washington D.C. Fisk, M.C. and S.K. Schmidt. 1996. Microbial responses to nitrogen additions in alpine tundra soils. Soil Biol. Biochem. 28: 751-755. Bowman, W.D., J.C. Schardt and S.K. Schmidt. 1996. Symbiotic N2 fixation in alpine tundra: Ecosystem input and variation in fixation rates among communities. Oecologia 108: 345-350. Hess, T.F., S.K. Schmidt and G.M. Colores. 1996. Maintenance energy model for microbial degradation of toxic chemicals in soil. Soil Biol. Biochem. 28: 907-915. Brooks, P.D., M.W. Williams and S.K. Schmidt. 1996. Microbial activity under alpine snowpacks. Biogeochemistry 32: 93-113 Fisk, M.C. and S.K. Schmidt. 1995. Nitrogen mineralization and microbial biomass N dynamics in three alpine tundra communities. Soil Sci. Soc. Am. J. 59: 1036-1043. Schmidt, S.K., G.M. Colores, T.F. Hess and P.M. Radehaus. 1995. A simple method for quantifying activity and survival of microorganisms involved in bioremediation processes Appl. Biochem. Biotechnol. 54: 259-270. Brooks, P.D., M.W. Williams, D.A. Walker and S.K. Schmidt. 1995. The Niwot Ridge snow fence experiment: biogeochemical responses to changes in the seasonal snowpack. pp. 293-302. In Biogeochemistry in seasonally covered catchments, (K.A. Tonnessen, M.W. Williams and M. Tranter, eds.) Hess, T.F. and S.K. Schmidt. 1995. Improved procedure for obtaining statistically valid parameter estimates from soil respiration data. Soil Biol. Biochem. 27: 1-7. Brooks, P.D., M.W. Williams and S.K. Schmidt. 1995. Snowpack controls on soil nitrogen dynamics in the Colorado alpine. pp. 283-292. In Biogeochemistry in seasonally covered catchments, (K.A. Tonnessen, M.W. Williams and M. Tranter, eds.) IAHS Publications. Colores, G.M., P.M. Radehaus and S.K. Schmidt. 1995. Use of a pentachlorophenol degrading bacterium to bioremediate heavily contaminated soil. Appl. Biochem. Biotechnol. 54: 271-275. Neff, J.C., W.D. Bowman, E.A. Holland, M.C. Fisk and S.K. Schmidt. 1994. Fluxes of nitrous oxide and methane from nitrogen amended soils in the Colorado Alpine. Biogeochemistry 27: 23-33 Brooks, P.D., S.K. Schmidt, D. Sommerfeld and R. Musselman. 1994. Distribution and abundance of microbial biomass in Rocky Mountain spring snowpacks. Proc. E. Snow Conference. 50: 301-306. Mullen, R.B. and S.K. Schmidt. 1993. Mycorrhizal infection, phosphorus uptake, and phenology in Ranunculus adoneus : Implications for the functioning of mycorrhizae in alpine systems. Oecologia 94: 229-234. Hess, T.F., J. Silverstein and S.K. Schmidt. 1993. Effect of glucose on 2,4-dinitrophenol biodegradation kinetics in sequencing batch reactors. Wat. Environ. Res. 65: 73-81. Schmidt, S.K. 1992. A substrate-induced growth-response method for estimating the biomass of microbial functional groups in soil and aquatic systems. FEMS Microbiol. Ecol. 101: 197-206. Schmidt, S.K. 1992. Models for studying the population ecology of microorganisms in natural systems. pp. 31-59 In C.J. Hurst (ed.), Modeling the metabolic and physiologic activities of microorganisms. John Wiley & Sons, New York. Radehaus, P.M. and S.K. Schmidt. 1992. Characterization of a novel Pseudomonas sp. that mineralizes high concentrations of pentachlorophenol. Appl. Environ. Microbiol. 58: 2879-2885. Schmidt, S.K. 1990. Ecological implications of the destruction of juglone (5-hydroxy-1,4-naphthoquinone) by soil bacteria. J. Chem. Ecol. 16: 3547-3549. Schmidt, S.K., R. Smith, D. Sheker, T.F. Hess, J. Silverstein and P.M. Radehaus. 1992. Interactions of microflagellates and bacteria in sequencing batch reactors exhibiting enhanced mineralization of toxic organic chemicals. Microb. Ecol. 23: 127-142. Schmidt, S.K. and M.J. Gier. 1990. Coexisting bacterial populations responsible for multi-phasic mineralization kinetics in soil. Appl. Environ. Microbiol. 56: 2692-2697. Hess, T., S.K. Schmidt, J. Silverstein and B. Howe. 1990. Supplemental substrate enhancement of 2,4-dinitrophenol mineralization by a bacterial consortium. Appl. Environ. Microbiol. 56: 1551-1558. Silverstein, J., M. Bowman, T. Hess, S.K. Schmidt and B. Howe. 1990. 2,4-dinitrophenol degradation and sludge floc size. Environ. Proc. A.S.C.E. 205-212. Schmidt, S.K. and M.J. Gier. 1989. Dynamics of microbial populations in soil: indigenous microorganisms degrading 2,4-dinitrophenol. Microb. Ecol. 18: 285-296. Schmidt, S.K. and F.B. Reeves. 1989. Interference between Salsola kali L. seedlings: Implications for plant succession. Plant and Soil 116: 107-110. Scow, K.M., S.K. Schmidt and M. Alexander. 1989. Kinetics of biodegradation of mixtures of substrates in soil. Soil Biol. Biochem. 21: 703-708. Schmidt, S.K. 1988. Degradation of juglone by soil bacteria. J. Chem. Ecol. 14: 1561-1571. Schmidt, S.K., K.M. Scow and M. Alexander. 1987. Kinetics of para-nitrophenol mineralization by a Pseudomonas sp.: Effects of second substrates. Appl. Environ. Microbiol. 53: 2617-2623. Schmidt, S.K. and K.M. Scow. 1986. Mycorrhizal fungi on the Galapagos Islands. Biotropica 18: 236-240. Schmidt, S.K., M. Alexander and M.L. Shuler. 1985. Predicting threshold concentrations of organic substrates for bacterial growth. J. Theor. Biol. 114: 1-8. Schmidt, S.K., S. Simkins and M. Alexander. 1985. Models for the kinetics of biodegradation of organic compounds not supporting growth. Appl. Environ. Microbiol. 50: 323-331. Schmidt, S.K. and M. Alexander. 1985. Effects of dissolved organic carbon and second substrates on the mineralization of low concentrations of organic compounds. Appl. Environ. Microbiol. 49: 822-827. Rubin, H. and S.K. Schmidt. 1985. Growth of phenol-mineralizing microorganisms in freshwater. Appl. Environ. Microbiol. 49: 11-14. Pimentel, D., C. Fried, L. Olson, S.K. Schmidt, K. Wagner-Johnson, A.Westman, A. Whelan, K. Foglia, P. Poole, T. Klein, R. Sobin, and A. Bochner. 1984. Environmental and social costs of biomass energy. BioScience 34: 89-94. Schmidt, S.K. and F.B. Reeves. 1984. Effect of the non-mycorrhizal pioneer plant Salsola kali L. (Chenopodiaceae) on vesicular-arbuscular mycorrhizal (VAM) fungi. Amer. J. Bot. 71: 1035-1039. Miller, R.M., T.B. Moorman, and S.K. Schmidt. 1983. Interspecific plant association effects on vesicular-arbuscular mycorrhizal fungi. New Phytol. 95: 241-246.

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