Search Results - "Duke, S. O"

Herbicide hormesis - can it be useful in crop production by Belz, R.G, Cedergreen, N, Duke, S.O

“…The yield-enhancing effects of some pesticides may change the focus of their use in crop production, from crop protection to crop enhancement. While such…”
Get full text

Isolation and Identification of Mosquito Bite Deterrent Terpenoids from Leaves of American (Callicarpa americana) and Japanese (Callicarpa japonica) Beautyberry by Cantrell, C. L, Klun, J. A, Bryson, C. T, Kobaisy, M, Duke, S. O

“…Essential oil extracts from Callicarpa americana and Callicarpa japonica were investigated. Bioassay-guided fractionation of C. americana extracts using the…”
Get full text

Natural compounds as next-generation herbicides by Dayan, Franck E, Duke, Stephen O

“…Herbicides with new modes of action (MOAs) are badly needed because of rapidly evolving resistance to commercial herbicides, for which a new MOA has not been…”
Get full text

Natural products as sources of herbicides: current status and future trends by Duke, S.O, Dayan, F.E, Romagni, J.G, Rimando, A.M

“…Although natural product‐based discovery strategies have not been as successful for herbicides as for other pesticides or pharmaceuticals, there have been some…”
Get full text

Rice momilactone gene cluster: transcriptional response to barnyard grass (Echinochloa crus-galli) by Bajsa-Hirschel, J., Pan, Z., Duke, S. O.

“…A bstract Expression of genes involved in diterpene biosynthesis, especially momilactone and gibberellins (GAs), in rice plants ( Oryza sativa L.) in response…”
Get full text

Low doses of glyphosate change the responses of soyabean to subsequent glyphosate treatments by Silva, F M L, Duke, S O, Dayan, F E, Velini, E D

“…Many herbicides promote plant growth at doses well below the recommended application rate (hormesis). The objectives of this study were to evaluate…”
Get full text

Inhibition of Plant Asparagine Synthetase by Monoterpene Cineoles by Romagni, Joanne G., Duke, Stephen O., Dayan, Franck E.

“…Asparagine (Asn) synthetase (AS) is the key enzyme in Asn biosynthesis and plays an important role in nitrogen mobilization. Despite its important…”
Get full text

Composition and Some Biological Activities of the Essential Oil of Callicarpa americana (L.) by Tellez, Mario R, Dayan, Franck E, Schrader, Kevin K, Wedge, David E, Duke, Stephen O

“…The essential oil profile of Callicarpa americana was examined. Samples were collected from Lafayette county in north central Mississippi, and GC-MS data and…”
Get full text

Amino- and Urea-Substituted Thiazoles Inhibit Photosynthetic Electron Transfer by Dayan, Franck E, Vincent, Armelle C, Romagni, Joanne G, Allen, Stacy N, Duke, Stephen O, Duke, Mary V, Bowling, John J, Zjawiony, Jordan K

“…Amino- and urea-substituted thiazoles exhibited in vivo herbicidal activity on duckweed (Lemna paucicostata Hegelm. strain 6746) cultures and appeared to act…”
Get full text

Aryltetralin Lignans Inhibit Plant Growth by Affecting the Formation of Mitotic Microtubular Organizing Centers by Oliva, A., Moraes, R.M., Watson, S.B., Duke, S.O., Dayan, F.E.

“…The aryltetralin lignans podophyllotoxin, α-peltatin, and β-peltatin, their respective O-β-d-glucosides, and the semisynthetic derivative etoposide were tested…”
Get full text

Joint action of natural and synthetic photosystem II inhibitors by Streibig, Jens C, Dayan, Franck E, Rimando, Agnes M, Duke, Stephen O

“…The inhibitory action on photosystem II of four sorgoleone analogues, isolated from Sorghum bicolor (L) Moench, and two synthetic inhibitors, diuron and…”
Get full text

Selective growth inhibition of the musty-odor producing cyanobacterium oscillatoria cf. chalybea by natural compounds by SCHRADER, K. K, DE REGT, M. Q, TIDWELL, P. R, TUCKER, C. S, DUKE, S. O

“…Studies have shown that the musty off-flavors in drinking water and fish can be reduced by selectively eliminating or inhibiting the growth of cyanobacteria,…”
Get full text

Phytotoxicity of Quassinoids: Physiological Responses and Structural Requirements by Dayan, F.E., Watson, S.B., Galindo, J.C.G., Hernández, A., Dou, J., McChesney, J.D., Duke, S.O.

“…Quassinoids are naturally occurring compounds with phytotoxic and allelopathic activities isolated from several plant species of the Simaroubaceae family…”
Get full text

Effect of diphenyl ether herbicides on oxidation of protoporphyrinogen to protoporphyrin in organellar and plasma membrane enriched fractions of barley by Jacobs, J.M, Jacobs, N.J, Sherman, T.D, Duke, S.O

“…In barley (Hordeum vulgare L.) root cells, activity for oxidizing protoporphyrinogen to protoporphyrin (protoporphyrinogen oxidase), a step in chlorophyll and…”
Get full text

Protoporphyrin IX Content Correlates with Activity of Photobleaching Herbicides by Jose M. Becerril, Duke, Stephen O.

“…Several laboratories have demonstrated recently that photobleaching herbicides such as acifluorfen and oxadiazon cause accumulation of protoporphyrin IX…”
Get full text

Thiol-dependent degradation of protoporphyrin IX by plant peroxidases by Dayan, F.E, Rimando, A.M, Duke, S.O, Jacobs, N.J

“…Protoporphyrin IX (PP) is the last porphyrin intermediate in common between heme and chlorophyll biosynthesis. This pigment normally does not accumulate in…”
Get full text

Repellency of Callicarpenal and Intermedeol Against Workers of Imported Fire Ants (Hymenoptera: Formicidae) by Chen, J, Cantrell, CL, Duke, SO, Allen, M L

“…Callicarpenal and intermedeol are two insect-repellent terpenoids isolated from leaves of American beautyberry (Callicarpa americana L.; Verbenaceae) and…”
Get full text

Susceptibility of various crop and weed species to AAL-toxin, a natural herbicide by Abbas, H.K. (USDA, ARS, South Weed Sci. Lab., Stoneville, MS.), Tanaka, T, Duke, S.O, Boyette, C.D

“…AAL-toxin, produced by Alternaria alternata, was investigated for its phytotoxic effects on 86 crop and weed species. On susceptible tomato leaf discs,…”
Get full text

Searching for Rice Allelochemicals: An Example of Bioassay‐Guided Isolation by Rimando, Agnes M., Olofsdotter, Maria, Dayan, Franck E., Duke, Stephen O.

“…A bioactivity‐guided isolation method was developed with the objective of isolating the allelochemicals in rice ( Oryza sativa L.). Roots of the allelopathic…”
Get full text

Weeding with transgenes by Duke, Stephen O.

“…Transgenes promise to reduce insecticide and fungicide use but relatively little has been done to significantly reduce herbicide use through genetic…”
Get full text