Skip to main content Skip to navigation
School of Biological Sciences Stephanie Porter Lab


Google Scholar Page


Porter SS, Dupin S, Denison F, Kiers ET, Sachs J, (in revision) Host-imposed control mechanisms in the legume-rhizobia symbiosis, Nature Microbiology

Kehlet-Delgado H, Montoya AP, Jensen K, Wendlandt CE, Dexheimer C, Roberts M, Martínez LT, Friesen MF, Griffitts JS, Porter SS (in press) The evolutionary genomics of adaptation to stress in wild rhizobium bacteria, Proceedings of the National Academy of Sciences

Millar N, Piovia-Scott J & Porter SS (2023) Impacts of domestication on the legume-rhizobium mutualism, Plant and Soil,

Bowman M, Heath A, Varga T, Battu A, Chu R, Toyoda J, Porter SS, Cheeke T, Moffett K, LeTendre B , Qafuko O, Bargar J, Mans D, Hess N, Graham E (2023) One thousand soils for molecular understanding of belowground carbon cycling, Frontiers in Soil Science, 3:1120425

Montoya A , Wendlandt C, Benedict A, Roberts M , Piovia-Scott J, Griffitts J, Porter SS (2023) Hosts winnow symbionts with multiple layers of absolute and conditional discrimination mechanisms, Proceedings of the Royal Society B,

Helliwell E , Lafayette P, Arredondo F, Kronmiller BN, Duquette M, Co A, Vega-Arreguin J, Porter SS, Borrego EJ, Kolomiets MV, Parrott WA, Tyler BM (2022) Transgenic soybeans secreting phosphatidylinositol-3-phosphate-binding proteins show enhanced resistance against the oomycete pathogen Phytophthora sojae, Frontiers in Microbiology, Vol. 13,

Wendlandt C , Roberts M, Nguyen K, Graham M, Lopez Z , Helliwell E , Friesen M, Griffitts J, Price P, Porter SS (2022) Negotiating mutualism: a locus for exploitation by rhizobia has a broad effect size distribution and context-dependent effects on legume hosts, J Evolutionary Biology, 00:1-11,

Klein M, Stewart JD, Porter SS, Weedon JT, Kiers ET (2021) Evolution of manipulative microbial behaviors in the rhizosphere, Evolutionary Applications, 00:1-16, DOI: 10.1111/eva.13333 KleinEtAl2021

Porter SS (2021) Dispatch: Symbiont switching and environmental adaptation, Current Biology, 31(17):R1049-R1050,   Porter2021

Martinez ML, Porter SS, Wendlandt C*, Purcell J; Barbosa GO, Rothschild J, Mathew L; Farmasin W, LeT; Sachs J (2021) Specialization in multiple niche axes supports the oscillation theory of speciation in native legumes, Evolution, 75(5):1070-1086,  MartinezEtAl2021

Wendlandt C, Helliwell E, Roberts M, Nguyen K, Friesen M, von Wettberg E, Price P, Griffitts J, Porter SS (2021) Decreased coevolutionary potential and increased symbiont fecundity during the biological invasion of a legume-rhizobium mutualism, Evolution,  WendlandtEtAl2021

Lopez Z, Von Wettberg EV, Friesen ML, New L, Porter SS (2020) Patchy symbiont distribution constrains the fitness of an exotic plant across an invaded landscape, Biological Invasions,  LopezEtAl2020

Porter SS & Sachs JL (in press) Agriculture and the disruption of plant-microbial symbiosis, Trends in Ecology and Evolution Porter&Sachs2020, see press

Porter SS, Bantay R, Friel C, Garoutte A, MacCready K, Miller B, Shetty P, Siler E, Friesen M (2020) Beneficial microbes ameliorate abiotic and biotic sources of stress on plants, Functional Ecology,  PorterEtAl2019, see press

Jack CN, Wozniak K, Porter SS, Friesen ML (2019) Rhizobia Protect Their Legume Hosts Against Soil-Borne Microbial Antagonists in a Host-Genotype-Dependent Manner, Rhizosphere, 9:47-555, DOI: 10.1016/j.rhisph.2018.11.005 JackEtAl2019

Jack CN, Rowe SL, Porter SS, Friesen ML (2019) A high-throughput method of analyzing multiple plant defensive compounds in minimized sample mass, Applications in Plant Sciences, 7(1): e1210, DOI: 10.1002/aps3.1210  JackEtAl2019

Krieg CP, Valls RA, Vatland S, Gordinier J, Porter SS, Von Wettberg E (2019) Nitrogen fixation: Fixing the gap between concept- and evidence-based learning with legume biology, American Biology Teacher, 81(4):250-255, DOI10.1525/abt.2019.81.4.250  KriegEtAl2019

Helliwell E, Faber-Hammond J,  Lopez Z, Garoutte A, von Wettberg E, Friesen M, Porter SS (2019) Rapid establishment of a flowering cline in Medicago polymorpha after invasion of North America, Molecular Ecology, DOI: 10.1111/mec.148  HelliwellEtAl2018

Porter SS, Faber-Hammond J, Montoya A, Friesen ML, Sackos C (2018Dynamic genomic architecture of cooperation in a wild population of Mesorhizobium, ISME J PorterEtAl2018

Calisi RM, A Working Group of Mothers in Science (2018) How to tackle the childcare-conference conundrum, PNAS CalisiEtAl2018 or, see press here and here

Porter SS, Faber-Hammond JJ, Friesen ML (2018) Co-invading symbiotic mutualists of Medicago polymorpha retain high ancestral diversity and contain diverse accessory genomes, FEMS Microbial Ecology PorterEtAl2018

La Pierre KJ,  Simms EL, Tariq M,  Zafar M, Porter SS (2017) Invasive legumes can associate with many mutualists of native legumes, but usually do not, Ecology and Evolution, DOI: 10.1002/ece3.3310 LaPierreEtAl2017

Amsellem L, Brouat C, Duron O, Porter SS, Vilcinskas A, Facon B (2017) Importance of microorganisms to macroorganisms invasions — Is the essential invisible to the eye? Advances in Ecological Research (Special Issue on Networks of Invasion) AmsellemEtAl2016

Porter SS, Chang PL , Conow CA, Dunham JP, Friesen ML (2017) Association mapping reveals novel serpentine adaptation gene clusters in a population of symbiotic Mesorhizobium, ISME, doi: 10.1038/ismej.2016.88 PorterEtAl2016

Briscoe Runquist R, Grossenbacher D, Porter SS, Kay K, Smith J (2016) Pollinator-mediated assemblage processes in California wildflowers, Journal of Experimental Biology, doi: 10.1111/jeb.12845 RunquistEtAl2016

Jones EI, Afkhami ME, Akcay E, Bronstein JL, Bshary R, Frederickson ME, Heath KD, Hoeksema J, Ness J, Pankey S, Porter SS, Sachs JL, Scharnagl K, & Friesen ML (2015) Cheaters must prosper: reconciling theoretical and empirical perspectives on cheating in mutualism. Ecology Letters, 18(11):1270-1284. JonesEtAl2015, see press

Friesen ML, von Wettberg EJB, Badri M, Moriuchi KS, Barhoumi F, Cuellar-Ortiz S, Chang PL, Cordeiro MA, Vu WT, Arraouadi S, Djébali N, Zribi K, Badri Y, Porter SS, Aouani ME, Cook DR, Strauss SY, &. Nuzhdin SV (2014) The Ecological and Genomic Basis of Salinity Adaptation in Tunisian Medicago truncatula, BMC Genomics, 15(1):1160. FriesenEtAl2014

Porter SS & Simms EL (2014) Selection for cheating across disparate environments in the legume-rhizobium mutualism, Ecology Letters 17: 1121-1129. PorterSimms2014

Ehinger M, Mohr TJ, Starcevich JB, Sachs JL, Porter SS & Simms EL (2014) Specialization-generalization trade-off in a Bradyrhizobium symbiosis with wild legume hosts, BMC Ecology 14:8. EhingerEtAl2014

Porter SS (2013) Adaptive divergence in seed color camouflage in contrasting soil environments, New Phytologist, 197:1311-1320. Porter2013

Porter SS & Rice KJ (2013) Trade-offs, spatial heterogeneity, and the maintenance of microbial diversity, Evolution, 67(2): 599-608. PorterRice2013

Simms EL & Porter SS (2012) Transcriptomic insights into mechanisms of symbiotic cooperation, Molecular Ecology, (19):4665-8. SimmsPorter2012

Porter SS, Rice KJ & Stanton ML (2011) Mutualism and adaptive divergence: Co-invasion of a heterogeneous grassland by an exotic legume-rhizobium symbiosis, PLoS One: e27935. PorterEtAl2011

Friesen ML, Porter SS, von Wettberg EJ, Stark SC, Sachs JL, Martinez-Romero E (2011) Microbially Mediated Plant Functional Traits. Annual Review of Ecology, Evolution, and Systematics vol. 42:23-46. FriesenEtAl2011

Feree E, Dickinson J, Rendell W, Stern C, Porter SS (2010) Hatching order explains an extra-pair chick advantage in western bluebirds, Behavioral Ecology, 21(4):802-807. FerreeEtAl2010

Porter SS, Eckert G, Byron C & Fisher J (2008) Comparison of light traps and plankton tows for sampling brachyuran crab larvae in an Alaskan fjord, Journal of Crustacean Biology, 28(1):175-179. PorterEtAl2009

Hickman C & Porter SS (2007) Nocturnal swimming, aggregation at light traps, and mass spawning of scissurellid gastropods (Mollusca: Vetigastropoda), Invertebrate Biology, 126:10-17. HickmanPorter2007

Porter SS (2003) A light trap survey of stomatopod larvae at Cook’s Bay, Moorea, The Biology and Geomorphology of Tropical Islands, 11: 135-148.