Research Topics
Genomes and GenesSpecies | E A SchmelzSummaryAffiliation: University of Florida Country: USA Publications
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Detail Information
Publications
The influence of intact-plant and excised-leaf bioassay designs on volicitin- and jasmonic acid-induced sesquiterpene volatile release in Zea maysE A Schmelz
Center of Medical, Agricultural, and Veterinary Entomology, United States Department of Agriculture, Agricultural Research Service, Gainesville, FL 32608, USA
Planta 214:171-9. 2001..The large quantitative differences between intact plants and detached leaves suggest that the results of assays using excised tissues should be cautiously interpreted when considering intact-plant models...
Nitrogen deficiency increases volicitin-induced volatile emission, jasmonic acid accumulation, and ethylene sensitivity in maizeEric A Schmelz
Center of Medical, Agricultural, and Veterinary Entomology, U S Department of Agriculture, Agricultural Research Service, Gainesville, FL 32608, USA
Plant Physiol 133:295-306. 2003..N availability influences plant responses to insect-derived elicitors through changes in E sensitivity and E-independent JA kinetics...- The use of vapor phase extraction in metabolic profiling of phytohormones and other metabolitesEric A Schmelz
Center of Medical, Agricultural, and Veterinary Entomology USDA, Agricultural Research Service, 1600 1700 Southwest 23rd Drive, Gainesville, FL 32608, USA
Plant J 39:790-808. 2004..Directions for further method expansion are provided and include issues of recovery, derivatization, range of accessible analytes, optimization, reproducibility and future directions... - Quantitative relationships between induced jasmonic acid levels and volatile emission in Zea mays during Spodoptera exigua herbivoryEric A Schmelz
Center of Medical, Agricultural, and Veterinary Entomology, USDA, Agricultural Research Service, 1600 1700 Southwest 23rd Drive, Gainesville, FL 32608, USA
Planta 216:665-73. 2003..Our results strongly support a role for JA in the regulation of insect-induced volatile emission but also suggest that ethylene perception regulates the magnitude of volatile emission during herbivory... - Cowpea chloroplastic ATP synthase is the source of multiple plant defense elicitors during insect herbivoryEric A Schmelz
Center of Medical, Agricultural, and Veterinary Entomology, United States Department of Agriculture, Agricultural Research Service, Chemistry Research Unit, Gainesville, Florida 32608, USA
Plant Physiol 144:793-805. 2007..In cowpea, insect gut proteolysis following herbivory generates inappropriate fragments of an essential metabolic enzyme enabling plant non-self-recognition... - Interactions between Spinacia oleracea and Bradysia impatiens: a role for phytoecdysteroidsEric A Schmelz
Department of Entomology, University of Arizona, Tucson, USA
Arch Insect Biochem Physiol 51:204-21. 2002..Interactions between spinach roots and B. impatiens larvae demonstrate that PEs can act as inducible defenses and provide protection against insect herbivory... - Susceptible to intolerance--a range of hormonal actions in a susceptible Arabidopsis pathogen responseEric A Schmelz
Department of Horticultural Sciences, University of Florida, Gainesville, FL 32611, USA
Plant J 33:245-57. 2003..In contrast to ethylene, accumulation of these hormones was not found to be dependent on SA action. These results indicate that the plants response to a virulent pathogen is a composite of multiple signaling pathways... - Phytohormones mediate volatile emissions during the interaction of compatible and incompatible pathogens: the role of ethylene in Pseudomonas syringae infected tobaccoJuan Huang
Department of Entomology and Nematology, University of Florida, Gainesville, FL 32611, USA
J Chem Ecol 31:439-59. 2005..Our findings suggest that ethylene can regulate the magnitude and blend of induced volatile emissions during pathogen infection... - Differential volatile emissions and salicylic acid levels from tobacco plants in response to different strains of Pseudomonas syringaeJuan Huang
Department of Entomology and Nematology, University of Florida, Gainesville, FL 32611-0620, USA
Planta 217:767-75. 2003..syringae are not linked to changes in jasmonic acid... - Phytohormone-based activity mapping of insect herbivore-produced elicitorsEric A Schmelz
Center of Medical, Agricultural, and Veterinary Entomology, United States Department of Agriculture, Agricultural Research Service, Chemistry Research Unit, Gainesville, FL 32608, USA
Proc Natl Acad Sci U S A 106:653-7. 2009..Despite the lack of an ideal plant model for studying the action of numerous elicitors, E and JA exist as highly conserved and readily quantifiable markers for future discoveries in this field... 
Cotton plant, Gossypium hirsutum L., defense in response to nitrogen fertilizationYigen Chen
Department of Entomology, Michigan State University, East Lansing, MI 48824, USA
J Chem Ecol 34:1553-64. 2008..exigua larvae feeding on physiologically different cotton plants that share large constitutive volatile pools releasable when damaged by herbivores...- Fragments of ATP synthase mediate plant perception of insect attackEric A Schmelz
Center of Medical, Agricultural, and Veterinary Entomology, Agricultural Research Service, Chemistry Research Unit, U S Department of Agriculture, Gainesville, FL 32608, USA
Proc Natl Acad Sci U S A 103:8894-9. 2006..Digestive fragments of an ancient and essential plant enzyme, inceptin functions as a potent indirect signal initiating specific plant responses to insect attack... - Simultaneous quantification of jasmonic acid and salicylic acid in plants by vapor-phase extraction and gas chromatography-chemical ionization-mass spectrometryJuergen Engelberth
Center for Medical, Agricultural and Veterinary Entomology, United States Department of Agriculture, Agricultural Research Service, 1700 SW 23rd Drive, Gainesville, FL 32608, USA
Anal Biochem 312:242-50. 2003..A comparison with established methods indicates the new method to be highly efficient, allowing reliable quantification of both compounds from small amounts of plant material (5-400mg fresh weight)... - The attraction of Spodoptera frugiperda neonates to cowpea seedlings is mediated by volatiles induced by conspecific herbivory and the elicitor inceptinMark J Carroll
Center for Medical, Agricultural, and Veterinary Entomology, U S Department of Agriculture, Agricultural Research Service, Chemistry Research Unit, Gainesville, FL 32608, USA
J Chem Ecol 34:291-300. 2008..These results suggest that neonate FAW exploit herbivore-induced plant volatiles as host plant location and recognition cues... - Salicylate and catechol levels are maintained in nahG transgenic poplarAlison M Morse
School of Forest Resources and Conservation, University of Florida, P O Box 110410, Gainesville, FL 32611, USA
Phytochemistry 68:2043-52. 2007..This suggests a biological role of elevated constitutive salicylic acid levels in Populus, in contrast to other plant systems in which nahG dramatically reduces salicylic acid levels... - A rapid biosensor-based method for quantification of free and glucose-conjugated salicylic acidChristopher T Defraia
Department of Microbiology and Cell Science, University of Florida, P, O, Box 110700, Gainesville, FL, 32611, USA
Plant Methods 4:28. 2008..In this paper we describe an improved methodology for Acinetobacter sp. ADPWH_lux-based free SA quantification, enabling high-throughput analysis, and present an approach for the quantification of SAG from crude plant extracts... - Attraction of Spodoptera frugiperda larvae to volatiles from herbivore-damaged maize seedlingsMark J Carroll
Center for Medical, Agricultural, and Veterinary Entomology, U.S. Department of Agriculture, Chemistry Research Unit, Agricultural Research Service, 1700 SW 23rd Drive, Gainesville, FL, 32608, USA
J Chem Ecol 32:1911-24. 2006..These results suggest that although many induced volatiles attract natural enemies of herbivores, these defenses may also inadvertently recruit more larval herbivores to an attacked plant or neighboring conspecifics... - The maize viviparous15 locus encodes the molybdopterin synthase small subunitMasaharu Suzuki
Plant Molecular and Cellular Biology Program, Horticultural Sciences Department, University of Florida, Gainesville, FL 32611, USA
Plant J 45:264-74. 2006..Comparisons of Vp15 loci in genomes of three cereals and Arabidopsis thaliana identified a conserved sequence element in the 5' untranslated region as well as a micro-synteny among the cereals... - Simultaneous analysis of phytohormones, phytotoxins, and volatile organic compounds in plantsEric A Schmelz
Center of Medical, Agricultural, and Veterinary Entomology, U S Department of Agriculture Agricultural Research Service, 1600 1700 Southwest 23rd Drive, Gainesville, FL 32608, USA
Proc Natl Acad Sci U S A 100:10552-7. 2003.... - The maize Viviparous10/Viviparous13 locus encodes the Cnx1 gene required for molybdenum cofactor biosynthesisTimothy G Porch
Horticultural Sciences Department, University of Florida, Gainesville, FL 32611-0690, USA
Plant J 45:250-63. 2006..Finally, the vp10 mutant phenotype suggests that cnx mutants can have auxin- as well as ABA-biosynthesis defects, while the chl6 mutant phenotype suggests that low levels of AO activity are sufficient for normal abiotic stress responses... - Airborne signals prime plants against insect herbivore attackJuergen Engelberth
Center for Medical, Agricultural, and Veterinary Entomology, U.S. Department of Agriculture Agricultural Research Service, 1700 SW 23rd Drive, Gainesville, FL 32608, USA
Proc Natl Acad Sci U S A 101:1781-5. 2004..Thus, GLV specifically prime neighboring plants against impending herbivory by enhancing inducible chemical defense responses triggered during attack and may play a key role in plant-plant signaling and plant-insect interactions... - Cell wall invertase-deficient miniature1 kernels have altered phytohormone levelsSherry LeClere
USDA ARS1, Center for Medical and Veterinary Entomology, Chemistry Unit, 1700 SW 23rd Drive, Gainesville, FL 32608 1069, USA
Phytochemistry 69:692-9. 2008..These findings indicate that invertase-mediated sucrose cleavage directly or indirectly regulates the levels of key plant hormones during seed development... - Sugar levels regulate tryptophan-dependent auxin biosynthesis in developing maize kernelsSherry LeClere
United States Department of Agriculture Agricultural Research Service, Center for Medical, Agricultural, and Veterinary Entomology, Chemistry Unit, Gainesville, Florida 32608 1069, USA
Plant Physiol 153:306-18. 2010..These results indicate that developing seeds may modulate growth by altering auxin biosynthesis in response to sugar concentrations... - Tissue-specific PhBPBT expression is differentially regulated in response to endogenous ethyleneRichard J Dexter
Department of Environmental Horticulture, University of Florida, Gainesville, FL 32611, USA
J Exp Bot 59:609-18. 2008.... - Disulfooxy fatty acids from the American bird grasshopper Schistocerca americana, elicitors of plant volatilesHans T Alborn
Center for Medical, Agricultural, and Veterinary Entomology, United States Department of Agriculture, 1600 1700 Southwest 23rd Drive, Gainesville, FL 32608, USA
Proc Natl Acad Sci U S A 104:12976-81. 2007..This adds a category of insect herbivore-produced elicitors of plant responses, providing further evidence of the ability of plants to detect and respond to a broad range of insect herbivore-produced compounds... - Effects of soldier-derived terpenes on soldier caste differentiation in the termite Reticulitermes flavipesMatthew R Tarver
Entomology and Nematology Department, University of Florida, Gainesville, 32611 0620, USA
J Chem Ecol 35:256-64. 2009..These findings reveal a novel primer pheromone-like function for soldier-derived terpenes in termites and further suggest convergent evolution of terpene functions in enhancing JH-dependent soldier caste differentiation... - Ethylene-regulated floral volatile synthesis in petunia corollasBeverly A Underwood
Department of Environmental Horticulture, University of Florida, Gainesville, Florida 32611, USA
Plant Physiol 138:255-66. 2005..These results implicate PhBSMT1 and 2 as genes responsible for synthesis of methylbenzoate in petunia... - Development of a lesion-mimic phenotype in a transgenic wheat line overexpressing genes for pathogenesis-related (PR) proteins is dependent on salicylic acid concentrationAjith Anand
Department of Biochemistry, Kansas State University, Manhattan, KS 66506, USA
Mol Plant Microbe Interact 16:916-25. 2003..Transcripts for phenylalanine-ammonia lyase, which provides precursors of SA, were elevated in homozygous transgenic plants. Our data suggest that transgene-induced lesion-mimic phenotype correlates with enhanced SA biosynthesis... - ABA is an essential signal for plant resistance to pathogens affecting JA biosynthesis and the activation of defenses in ArabidopsisBruce A T Adie
Departamento de Genética Molecular de Plantas, Centro Nacional de Biotecnología Consejo Superior de Investigaciones Científicas, Campus Universidad Autonoma, 28049 Madrid, Spain
Plant Cell 19:1665-81. 2007..The results support a model for ABA affecting JA biosynthesis in the activation of defenses against this oomycete...