Research Topics
Genomes and GenesSpecies | Franck E DayanSummaryAffiliation: Agricultural Research Service Country: USA Publications
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Publications
Rationale for a natural products approach to herbicide discoveryFranck E Dayan
United States Department of Agriculture, Agricultural Research Service, University, MS 38677, USA
Pest Manag Sci 68:519-28. 2012....- Modes of action of microbially-produced phytotoxinsStephen O Duke
United States Department of Agriculture, Agricultural Research Service, Natural Products Utilization Research Unit, P O Box 8048, MS 38677, USA Email
Toxins (Basel) 3:1038-64. 2011..Examples of the compounds discussed are tentoxin, AAL-toxin, auscaulitoxin aglycone, hydantocidin, thaxtomin, and tabtoxin... - A pathogenic fungi diphenyl ether phytotoxin targets plant enoyl (acyl carrier protein) reductaseFranck E Dayan
Natural Products Utilization Research Unit, U S Department of Agriculture, Agricultural Research Services, University, Mississippi 38677, USA
Plant Physiol 147:1062-71. 2008..Therefore, cyperin may contribute to the virulence of the pathogens by inhibiting ENR and destabilizing the membrane integrity of the cells surrounding the point of infection... - SorgoleoneFranck E Dayan
United States Department of Agriculture, Agricultural Research Service, Natural Products Utilization Research Unit, P O Box 8048, University, MS 38677, USA
Phytochemistry 71:1032-9. 2010..Due to its hydrophobic nature, sorgoleone is strongly sorbed in soil which increases its persistence, but experiments show that it is mineralized by microorganisms over time... - Alkylresorcinol synthases expressed in Sorghum bicolor root hairs play an essential role in the biosynthesis of the allelopathic benzoquinone sorgoleoneDaniel Cook
U S Department of Agriculture, Agricultural Research Service, Natural Products Utilization Research Unit, University, Mississippi 38677, USA
Plant Cell 22:867-87. 2010..The sequences of ARS1 and ARS2 were also used to identify several rice (Oryza sativa) genes encoding ARSs, which are likely involved in the production of defense-related alkylresorcinols... - A functional genomics investigation of allelochemical biosynthesis in Sorghum bicolor root hairsScott R Baerson
United States Department of Agriculture, Agricultural Research Service, Natural Products Utilization Research Unit, University, Mississippi 38677, USA
J Biol Chem 283:3231-47. 2008..SbOMT3 is therefore proposed to be involved in the biosynthesis of the allelochemical sorgoleone... - Alkylresorcinol biosynthesis in plants: new insights from an ancient enzyme family?Scott R Baerson
United States Department of Agriculture, Agricultural Research Service, Natural Products Utilization Research Unit, MS, USA
Plant Signal Behav 5:1286-9. 2010.... - Factors modulating the levels of the allelochemical sorgoleone in Sorghum bicolorFranck E Dayan
USDA ARS Natural Products Utilization Research Unit, P O Box 8048, University, MS 38677, USA
Planta 224:339-46. 2006..However, the stimulation observed with velvetleaf root crude extract suggests that sorghum seedlings may respond to the presence of other plants by releasing more of this allelochemical... - Beta-triketone inhibitors of plant p-hydroxyphenylpyruvate dioxygenase: modeling and comparative molecular field analysis of their interactionsFranck E Dayan
US Department of Agriculture, Natural Products Utilization Research Unit, Agricultural Research Service, University, Mississippi 38677, USA
J Agric Food Chem 57:5194-200. 2009.... - Biosynthesis of lipid resorcinols and benzoquinones in isolated secretory plant root hairsFranck E Dayan
United States Department of Agriculture, Agricultural Research Service, Natural Products Utilization Research Unit, PO Box 8048, University, MS 38677, USA
J Exp Bot 58:3263-72. 2007..It also demonstrates that some root hairs can function as specialized cells for the production of bioactive secondary metabolites... - Dynamic root exudation of sorgoleone and its in planta mechanism of actionFranck E Dayan
United States Department of Agriculture, Agricultural Research Service, Natural Products Utilization Research Unit, University, MS 38677, USA
J Exp Bot 60:2107-17. 2009..Therefore, the mode of action of sorgoleone may be the result of inhibition of photosynthesis in young seedlings in concert with inhibition of its other molecular target sites in older plants... - Phytotoxic Eremophilanes from Ligularia macrophyllaCharles L Cantrell
USDA ARS, Natural Products Utilization Research Unit, University, MS 38677, USA
J Agric Food Chem 55:10656-63. 2007..At a concentration of 0.5% (wt/wt), 6beta-angeloyloxy-10beta-hydroxyfuranoeremophilane significantly reduced the consumption of filter paper by C. formosanus... - United States Department of Agriculture-Agricultural Research Service research on natural products for pest managementStephen O Duke
USDA, ARS, Natural Products Utilization Research Unit, PO Box 8048, University, MS 38677, USA
Pest Manag Sci 59:708-17. 2003..Gene expression profiles in response to fungicides and herbicides are being generated as tools to understand more fully the mode of action and to rapidly determine the molecular target site of new, natural fungicides and herbicides... - Chromatographic separation and in vitro activity of sorgoleone congeners from the roots of sorghum bicolorIsabelle A Kagan
Natural Products Utilization Research Unit, Agricultural Research Service, US Department of Agriculture, University, Mississippi 38677, USA
J Agric Food Chem 51:7589-95. 2003..The abilities of the minor sorgoleones to inhibit PSII were similar to that of the major compound, suggesting that all of these sorgoleone congeners contribute to the overall allelopathy of sorghum... - Biochemical and structural consequences of a glycine deletion in the alpha-8 helix of protoporphyrinogen oxidaseFranck E Dayan
USDA ARS, Natural Products Utilization Research Unit, P O Box 8048, University, MS 38677, USA
Biochim Biophys Acta 1804:1548-56. 2010.... - Elucidation of the biosynthetic pathway of the allelochemical sorgoleone using retrobiosynthetic NMR analysisFranck E Dayan
United States Department of Agriculture Agricultural Research Service, Natural Products Utilization Research Unit, University, Mississippi 38677, USA
J Biol Chem 278:28607-11. 2003..The lipid resorcinol intermediate is then methylated by a S-adenosylmethionine-dependent O-methyltransferase and subsequently dihydroxylated by a P450 monooxygenase to yield the reduced form of sorgoleone... - PSII inhibitory activity of resorcinolic lipids from Sorghum bicolorAgnes M Rimando
USDA ARS, Natural Products Utilization Research Unit, P O Box 8048, University, Mississippi 38677, USA
J Nat Prod 66:42-5. 2003..20 microM, respectively). Compound 4 could not be enzymatically converted to a quinone, suggesting that the quinone moiety is not required for its photosystem II inhibitory activity. Compounds 5 and 6 are reported for the first time... - p-Hydroxyphenylpyruvate dioxygenase is a herbicidal target site for beta-triketones from Leptospermum scopariumFranck E Dayan
United States Department of Agriculture, Agricultural Research Service, Natural Products Utilization Research Unit, P O Box 8048, University, MS 38677, USA
Phytochemistry 68:2004-14. 2007..Computational analysis of the catalytic domain of HPPD indicates that a lipophilic domain proximate from the Fe2+ favors the binding of ligands with lipophilic moieties... - Natural products in crop protectionFranck E Dayan
Natural Products Utilization Research Unit, Agricultural Research Service, United States Department of Agriculture, University, MS 38677, USA
Bioorg Med Chem 17:4022-34. 2009..This review covers the historical use of natural products in agricultural practices, the impact of natural products on the development of new pesticides, and the future prospects for natural products-based pest management... - Composition of the essential oil of Lepidium meyenii (Walp)Mario R Tellez
Natural Products Utilization Research Unit, USDA ARS, Box 8048, University, MS 38677, USA
Phytochemistry 61:149-55. 2002..This is the first report on the essential oil composition of L. meyenii... - In planta production of the highly potent resveratrol analogue pterostilbene via stilbene synthase and O-methyltransferase co-expressionAgnes M Rimando
Natural Products Utilization Research Unit, Agricultural Research Service, United States Department of Agriculture, University, MS, USA
Plant Biotechnol J 10:269-83. 2012.... - Bioactivation of the fungal phytotoxin 2,5-anhydro-D-glucitol by glycolytic enzymes is an essential component of its mechanism of actionFranck E Dayan
USDA ARS Natural Products Utilization Research Unit, University, MS 38677, USA
Z Naturforsch C 57:645-53. 2002..solani to produce a fructose analog that is bioactivated by enzymes of the host plant in order to inhibit a major metabolic pathway illustrates the intricate biochemical processes involved in plant-pathogen interactions... - Is (-)-catechin a novel weapon of spotted knapweed (Centaurea stoebe)?Stephen O Duke
NPURU, USDA, ARS, University, Oxford, MS 38677, USA
J Chem Ecol 35:141-53. 2009..Our findings suggest that catechin is not a novel weapon of spotted knapweed and that other allelochemical(s) or alternative mechanisms must be found to explain the success of this species as an invader in North America... - Somatic mutation-mediated evolution of herbicide resistance in the nonindigenous invasive plant hydrilla (Hydrilla verticillata)Albrecht Michel
USDA/ARS, Natural Products Utilization Research Unit, PO Box 8048, University, Mississippi 38677, USA
Mol Ecol 13:3229-37. 2004..As hydrilla spread rapidly to lakes across the southern United States in the past, the expansion of resistant biotypes is likely to pose significant environmental challenges in the future... - The majority of in vitro macrophage activation exhibited by extracts of some immune enhancing botanicals is due to bacterial lipoproteins and lipopolysaccharidesNirmal D Pugh
National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, University, MS 38677, USA
Int Immunopharmacol 8:1023-32. 2008.... - Biosynthesis of salvinorin A proceeds via the deoxyxylulose phosphate pathwayLukasz Kutrzeba
Department of Pharmacognosy, School of Pharmacy, University of Mississippi, University, MS 38677 1848, USA
Phytochemistry 68:1872-81. 2007.... - Podophyllum peltatum possesses a beta-glucosidase with high substrate specificity for the aryltetralin lignan podophyllotoxinFranck E Dayan
Natural Products Utilization Research Unit, Agricultural Research Service, United States Department of Agriculture, P O Box 8048, University, MS 38677, USA
Biochim Biophys Acta 1646:157-63. 2003..This beta-glucosidase displayed higher substrate specificity for podophyllotoxin-4-O-beta-D-glucopyranoside than for the other lignans tested, and for the (1-->3) linkage of laminaribiose than for other glucosidic linkages... - Phytotoxicity and volatile constituents from leaves of Callicarpa japonica ThunbMozaina Kobaisy
Natural Products Utilization Research Unit, USDA ARS, Box 8048, University, MS 38677, USA
Phytochemistry 61:37-40. 2002..The oil of C. japonica was selectively phytotoxic to bentgrass compared to lettuce seeds, with 80-100% growth reduction observed at 0.3 mg/ml... - The inhibitory activity of natural products on plant p-hydroxyphenylpyruvate dioxygenaseGiovanni Meazza
Isagro Ricerca Srl, via G. Fauser, 4, 28100 Novara, Italy
Phytochemistry 60:281-8. 2002.... - The 2006 annual meeting of the Phytochemical Society of North America: special issue of phytochemistry, phytochemistry pioneer awards and the 2006 meeting scientific highlightsCharles L Cantrell
Phytochemistry 68:1826-9. 2007 - Activity of quinones on colletotrichum speciesGiovanni Meazza
Isagro Ricerca Srl, via G. Fauser, 4, 28100 Novara, Italy
J Agric Food Chem 51:3824-8. 2003..Colletotrichum fragariae was the most sensitive species to quinone-based chemistry, Colletotrichum gloeosporioides had intermediate sensitivity, while Colletotrichum acutatum was the species least sensitive to these compounds...