Zettler, LW and JE Fairey, III. 1990. The status of Platanthera integrilabia (Correll) Luer, an endangered terrestrial orchid. Lindleyana 5: 212-217.
Zettler, LW and TM McInnis, Jr. 1992. Propagation of Platanthera integrilabia (Correll) Luer, an endangered terrestrial orchid, through symbiotic seed germination. Lindleyana 7: 154-161.
Zettler, LW and TM McInnis, Jr. 1993. Symbiotic seed germination and development of Spiranthes
cernua (L.) Rich. and Goodyera pubescens (Willd.) R. Br. (Orchidaceae: Spiranthoideae). Lindleyana 8: 155-162.
Zettler, LW and TM McInnis, Jr. 1994. Light enhancement of symbiotic seed germination and development of an endangered terrestrial orchid (Platanthera integrilabia). Plant Science 102: 133-138.
Zettler, LW. 1994. Extinction in our own backyard. American Orchid Society Bulletin 63: 686-688.
Zettler, LW, F Barrington*, and TM McInnis, Jr. 1995. Developmental morphology of Spiranthes odorata (Orchidaceae) in symbiotic culture. Lindleyana 10: 211-216.
Zettler, LW, NS Ahuja, and TM McInnis, Jr. 1996. Insect pollination of the endangered monkey-face orchid (Platanthera integrilabia) in McMinn Co., Tennessee - one last glimpse of a once common spectacle. Castanea 61: 14-24.
Zettler, LW. 1996. Just how safe are our terrestrial orchid preserves? Orchids 65(2): 156-159.
Zettler, LW and CJ Hofer*. 1997. Sensitivity of Spiranthes odorata seeds to light during in vitro symbiotic seed germination. Lindleyana 12: 26-29.
Zettler, LW. 1997. Terrestrial orchid conservation by symbiotic seed germination: techniques and perspectives. Selbyana 18: 188-194.
Currah, RS, LW Zettler, and TM McInnis, Jr. 1997. Epulorhiza inquilina sp. nov. from Platanthera (Orchidaceae) and a key to Epulorhiza species. Mycotaxon 61: 335-342.
Zettler, LW. 1997. Orchid-fungal symbiosis and its value in conservation. McIlvainea 13: 40-45.
Zettler, LW, T Wilson Delaney* and JA Sunley*. 1998. Seed propagation of the epiphytic green-fly orchid (Epidendrum conopseum) using its endophytic fungus. Selbyana 19: 249-253.
Zettler, LW and CJ Hofer*. 1998. Propagation of the little club-spur orchid (Platanthera clavellata) by symbiotic seed germination, and its ecological implications. Environmental and Experimental Botany 39: 189-195.
Zettler, LW. 1999. Orchids go native. Orchids 68(1): 14-21.
Zettler, LW, JC Burkhead*, and JA Marshall*. 1999. Use of a mycorrhizal fungus from Epidendrum conopseum to propagate Encyclia tampensis from seed in vitro. Lindleyana 14: 102-105.
Zettler, LW, JA Sunley*, and T Wilson Delaney*. 2000. Symbiotic seed germination of an orchid in decline (Platanthera integra) from the Green Swamp, North Carolina. Castanea 65: 207-212.
Yoder, JA, LW Zettler, and SL Stewart*. 2000. Water requirements of terrestrial and epiphytic orchid seeds and seedlings, and evidence for water uptake by means of mycotrophy. Plant Science 156: 145-150.
Zettler, LW, SL Stewart*, ML Bowles, and KA Jacobs. 2001. Mycorrhizal fungi and cold-assisted symbiotic germination of the Federally threatened eastern prairie fringed orchid, Platanthera leucophaea (Nuttall) Lindley. American Midland Naturalist 145: 168-175.
Bowles, ML, KA Jacobs, LW Zettler, and T Wilson Delaney*. 2002. Crossing effects on seed viability and experimental germination of the Federal threatened eastern prairie fringed orchid, Platanthera leucophaea (Nuttall) Lindley. Rhodora 104: 14-30.
Stewart*, SL, and LW Zettler. 2002. Symbiotic germination of three semi-aquatic rein orchids (Habenaria macroceratitis, H. quinqueseta, H. repens) from Florida. Aquatic Botany 72: 25-35.
Sharma, J, LW Zettler, JW Van Sambeek, M Ellerseck, and CJ Starbuck. 2003. Symbiotic seed germination and mycorrhizae of Federally-threatened Platanthera praeclara (Orchidaceae). American Midland Naturalist 149: 79-95.
Sharma, J, LW Zettler, and CJ Starbuck. 2003. A survey of mycobionts of Federally-threatened Platanthera praeclara (Orchidaceae). Symbiosis 34: 145-155.
Yoder, JA, PE Hanson, LW Zettler, JB Benoit, F Ghisays, and KA Piskin*. 2003. Internal and external mycoflora of the American dog tick, Dermacentor variabilis (Acari: Ixodidae) and its ecological implications. Applied and Environmental Microbiology. 69: 4994-4996.
Yoder, JA, PE Hanson, F Ghisays, JB Benoit, and LW Zettler. 2003. Moisture requirements of the soil imperfect fungus, Scopulariopsis brevicaulis, in relation to its tick host. International Journal of Acarology 29: 271-277.
Yoder, JA, JB Benoit, and LW Zettler. 2003. Effects of salt and temperature on the growth rate of a tick-associated fungus, Scopulariopsis brevicaulis (Deuteromycota). International Journal of Acarology 29: 265-269.
Stewart*, SL, LW Zettler, J Minso*, and PM Brown. 2003. Symbiotic germination and reintroduction of Spiranthes brevilabris Lindley, an endangered orchid native to Florida. Selbyana 24: 64-70.
Yoder, JA, JB Benoit, EJ Rellinger, SA Murray, and LW Zettler. 2004. Water balance of a tick-fungus relationship, featuring the life cycle of the fungus Scopulariopsis brevicaulis (Saac.) Bainier (Deuteromycota) in a tick host. International Journal of Acarology 30: 93-101.
Benoit, JB, JA Yoder, D Sammataro, and LW Zettler. 2004. Mycoflora and fungal vector capacity of the parasitic mite, Varroa destructor (Acari: Varroidae) in honey bee (Apis mellifera) colonies. International Journal of Acarology 30: 103-106.
Benoit, JB, JA Yoder, LW Zettler, and HH Hobbes, III. 2004. Mycoflora of a trogloxenic cave cricket, Hadenoecus cunberlandicus (Orthoptera: Rhaphidophoridae), from two small caves in northeastern Kentucky. Arthropod Biology 97: 989-993.
Yoder, JA, JB Benoit, and LW Zettler. 2004. Scopulariopsis brevicaulis affords protection from secondary fungus infection in the American dog tick, Dermacentor variabilis (Acari: Ixodidae): inference from competitive fungal interactions in vitro. International Journal of Acarology 30: 375-381.
Zettler, LW. 2005. Nature’s fungus connoisseurs: new insight into the mysterious orchid-fungal association. Orchids 74(4): 292-297.
Bowles, ML, LW Zettler, TJ Bell, and P. Kelsey. 2005. Relationships between soil characteristics, distribution, and restoration potential of the Federal threatened eastern prairie fringed orchid, Platanthera leucophaea (Nutt.) Lindl. American Midland Naturalist 154: 273-285.
Zettler, LW, KA Piskin*, SL Stewart*, JJ Hartsock*, ML Bowles, and TJ Bell. 2005. Protocorm mycobionts of a Federally threatened orchid, Platanthera leucophaea, and a technique to promote leaf formation in seedlings. Studies in Mycology 53: 163-171.
Zettler, LW, S Perlman, DJ Dennis*, SE Hopkins*, and SB Poulter*. 2005. Symbiotic germination of the Federally endangered Hawaiian endemic, Platanthera holochila (Orchidaceae) using a mycobiont from Florida: a conservation dilemma. Selbyana 26(1,2): 269-276.
Zettler, LW, SB Poulter*, KI McDonald*, and SL Stewart. 2007. Conservation-driven propagation of an epiphytic orchid (Epidendrum nocturnum) with a mycorrhizal fungus. HortScience 42(1): 135-139.
Massey*, EE and LW Zettler. 2007. An expanded role for in vitro symbiotic seed germination as a conservation tool: two case studies in North America (Platanthera leucophaea and Epidendrum nocturnum). Proceedings of the 3rd International Orchid Conservation Congress, Lankesteriana 7(1,2): 303-308.
Zettler, LW. 2007. The Orchid Recovery Program at Illinois College - a successful blend of teaching, research, and undergraduate student participation to benefit orchid conservation. Proceedings of the 3rd International Orchid Conservation Congress, Lankesteriana 7(1,2): 436-439.
Yoder, JA, Benoit, JB, DL Denlinger, JL Tank, and LW Zettler. 2008. An endosymbiotic conidial fungus, Scopulariopsis brevicaulis, protects the American dog tick, Dermacentor variabilis, from desiccation imposed by an entomopathogenic fungus. Journal of Invertebrate Pathology 97: 119-127.
Yoder, JA, JB Benoit, and LW Zettler. 2008. The giant Madagascar hissing cockroach (Gomphadorhina portentosa) as a carrier of antagonistic moulds: concerns arising from its use in a public setting. Mycoses 51(2): 95-98.
Zettler, LW. 2008. An overview of the orchid fungal association, and its application to orchid conservation in the Americas. Proceedings of the 19th World Orchid Conference, Miami, FL, p. 315-318.
Yoder, JA, MJ Chambers, MR Condon, JB Benoit, and LW Zettler. 2009. Regulation of the external mycoflora of the giant Madagascar hissing-cockroach, Gromphadorhina portentosa, by its mite associate, Gromphadorholaelaps schaeferi, and its implications on human health. Symbiosis 47: 93-98.
Aggarwal, S. and LW Zettler. 2010. Reintroduction of an endangered terrestrial orchid (Dactylorhiza hatagirea (D. Don) Soo) assisted by symbiotic seed germination: first report from the Indian subcontinent. Nature and Science Journal 8(10): 139-145.
Yoder, JA, SM Imfeld, DJ Heydinger, CE Hart, MH Collier, KM Gribbins, and LW Zettler. 2010. Comparative water balance profiles of Orchidaceae seeds for epiphytic and terrestrial taxa endemic to North America. Plant Ecology 211: 7-17.
Keel, BG, LW Zettler, and BA Kaplin. 2011. Seed germination of Habenaria repens (Orchidaceae) in situ beyond its range, and its potential for assisted migration imposed by climate change. Castanea 76(1):43-54.
Zettler, LW and KA Piskin. 2011.Mycorrhizal fungi from protocorms, seedlings, and mature plants of the eastern prairie fringed orchid, Platanthera leucophaea: A comprehensive list to augment conservation. American Midland Naturalist 166:29-39.
Yoder, JA, JB Benoit, and LW Zettler. Competition in vitro among fungi acquired from the exoskeleton of the giant Madagascar hissing-cockroach, Gromphadorhina portentosa, and its relevance to human health. Fungal Ecology (in press).
Sadler*, JJ, JM Smith*, LW Zettler, H. T. Alborn, and LW Richardson. 2011. Fragrance composition of Dendrophylax lindenii (Lindley) Bentham ex Rolfe (Orchidaceae), using a novel technique applied in situ. European Journal Environmental Science 1(2): 131-141 (in press).
Zettler, L.W., L.L. Corey, L.W. Richardson, A.Y. Ross*, and L. Moller-Jacobs*. 2011. Protocorms of an epiphytic orchid, (Epidendrum amphistomum A. Richard) recovered in situ, and subsequent identification of associated mycorrhizal fungi using molecular markers. European Journal Environmental Sciences 1(2): 108-114 (in press).
Zettler, JA, LW Zettler and LW Richardson. 2012. Pestiferous insects (Hemiptera), on native epiphytic orchids in South Florida: a new threat posed by introduced species. Southeastern Naturalist (in press).
Zettler, LW, EM Wood*, LJAN Johnson*, A Kirk*, and S Perlman. 2011. Seed propagation and re-introduction of the U.S. Federally endangered Hawaiian endemic, Platanthera holochila (Hbd.) Krz. (Orchidaceae). European Journal Environmental Sciences. 1(2): 80-94 (in press).
Yoder, JA, JB Benoit, BZ Hedges, AE Rosselot, AJ Jajack, and LW Zettler. Madagascar hissing-cockroach mite, Gromphadorholaelaps schaeferi, prevents fungal infection in its cockroach host: evidence for mutualistic symbiosis. International Journal of Acarology (in press).
Ray*, HA J McCormick*, AL Stice, I Stocks, and LW Zettler. Occurrence of Boisduval scale, Diaspisboisduvalii (Hemiptera: Diaspididae), on native epiphytic orchids in Collier,Co., Florida, including Fakahatchee Strand State Preserve. (in review).
Zettler, LW and SP Perlman. 2012. Platanthera holochila - Hawaii's rarest native orchid and the battle to save it. Orchids (in press).
Zettler, LW and H Oppenheimer. 2012. Hawaii's three native orchids: a closer look. Orchids (submitted).