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Showing 1 to 12 of 171 entries
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Phytotchemical phytotoxins and hormesis - a commentary.

Dose-response : a publication of International Hormesis Society

Duke SO.
PMID: 21431079
Dose Response. 2010 Oct 07;9(1):76-8. doi: 10.2203/dose-response.10-038.Duke.

No abstract available.

Micro- and Macromechanical Properties of Thermoelectric Lead Chalcogenides.

ACS applied materials & interfaces

Li G, Aydemir U, Duan B, Agne MT, Wang H, Wood M, Zhang Q, Zhai P, Goddard WA, Snyder GJ.
PMID: 29098851
ACS Appl Mater Interfaces. 2017 Nov 22;9(46):40488-40496. doi: 10.1021/acsami.7b15651. Epub 2017 Nov 13.

Both n- and p-type lead telluride (PbTe)-based thermoelectric (TE) materials display high TE efficiency, but the low fracture strength may limit their commercial applications. To find ways to improve these macroscopic mechanical properties, we report here the ideal strength...

Fumonisin- and AAL-Toxin-Induced Disruption of Sphingolipid Metabolism with Accumulation of Free Sphingoid Bases.

Plant physiology

Abbas HK, Tanaka T, Duke SO, Porter JK, Wray EM, Hodges L, Sessions AE, Wang E, Merrill AH, Riley RT.
PMID: 12232389
Plant Physiol. 1994 Nov;106(3):1085-1093. doi: 10.1104/pp.106.3.1085.

Fumonisins (FB) and AAL-toxin are sphingoid-like compounds produced by several species of fungi associated with plant diseases. In animal cells, both fumonisins produced by Fusarium moniliforme and AAL-toxin produced by Alternaria alternata f. sp. lycopersici inhibit ceramide synthesis, an...

Effect of diphenyl ether herbicides on oxidation of protoporphyrinogen to protoporphyrin in organellar and plasma membrane enriched fractions of barley.

Plant physiology

Jacobs JM, Jacobs NJ, Sherman TD, Duke SO.
PMID: 16668371
Plant Physiol. 1991 Sep;97(1):197-203. doi: 10.1104/pp.97.1.197.

In barley (Hordeum vulgare L.) root cells, activity for oxidizing protoporphyrinogen to protoporphyrin (protoporphyrinogen oxidase), a step in chlorophyll and heme synthesis, was found both in the crude mitochondrial fraction and in a plasma membrane enriched fraction separated by...

Physiological basis for differential sensitivities of plant species to protoporphyrinogen oxidase-inhibiting herbicides.

Plant physiology

Sherman TD, Becerril JM, Matsumoto H, Duke MV, Jacobs JM, Jacobs NJ, Duke SO.
PMID: 16668383
Plant Physiol. 1991 Sep;97(1):280-7. doi: 10.1104/pp.97.1.280.

With a leaf disc assay, 11 species were tested for effects of the herbicide acifluorfen on porphyrin accumulation in darkness and subsequent electrolyte leakage and photobleaching of chlorophyll after exposure to light. Protoporphyrin IX (Proto IX) was the only...

Sucrose synthase and invertase in isolated vascular bundles.

Plant physiology

Tomlinson PT, Duke ER, Nolte KD, Koch KE.
PMID: 16668516
Plant Physiol. 1991 Nov;97(3):1249-52. doi: 10.1104/pp.97.3.1249.

Vascular bundles were isolated from grapefruit (Citrus paradisi Macf.) during periods of rapid sucrose translocation into fruit. Invertase and sucrose synthase activities were assayed in these strands and compared with immediately adjacent tissues (inner most peel and segment epidermis)...

Inhibition of plant asparagine synthetase by monoterpene cineoles.

Plant physiology

Romagni JG, Duke SO, Dayan FE.
PMID: 15824288
Plant Physiol. 2005 Apr;137(4):1487. doi: 10.1104/pp.104.900143.

No abstract available.

Model for variable light sensitivity in imbibed dark-dormant seeds.

Plant physiology

Duke SO, Egley GH, Reger BJ.
PMID: 16659826
Plant Physiol. 1977 Feb;59(2):244-9. doi: 10.1104/pp.59.2.244.

The level of light-induced germination of the seed of common purslane (Portulaca oleracea L.) and curly dock (Rumex crispus L.) changes with dark incubation time prior to brief, low energy, red light treatment. The rate at which phytochrome-far red-absorbing...

Immunocytochemical and Cytochemical Localization of Photosystems I and II.

Plant physiology

Vaughn KC, Vierling E, Duke SO, Alberte RS.
PMID: 16663195
Plant Physiol. 1983 Oct;73(2):203-7. doi: 10.1104/pp.73.2.203.

Cytochemical and immunocytochemical methods were used to localize photosystems I and II in barley (Hordeum vulgare L. cv Himalaya) chloroplasts. PSI activity, monitored by diaminobenzidine oxidation, was associated with the lumen side of the thylakoids of both grana and...

Effects of Glyphosate on Metabolism of Phenolic Compounds: V. l-alpha-AMINOOXY-beta-PHENYLPROPIONIC ACID AND GLYPHOSATE EFFECTS ON PHENYLALANINE AMMONIA-LYASE IN SOYBEAN SEEDLINGS.

Plant physiology

Duke SO, Hoagland RE, Elmore CD.
PMID: 16661135
Plant Physiol. 1980 Jan;65(1):17-21. doi: 10.1104/pp.65.1.17.

The phenylalanine ammonia-lyase (PAL) inhibitor l-alpha-aminooxy-beta-phenylpropionic acid (AOPP) was root-fed to light-exposed soybean seedlings alone or with glyphosate [N-(phosphonomethyl)glycine] to test further the hypothesis that PAL activity is involved in the mode of action of glyphosate. Extractable PAL activity...

Development of ultrafast photochromic organometallics and photoinduced linkage isomerization of arene chromium carbonyl derivatives.

The journal of physical chemistry. A

To TT, Heilweil EJ, Duke CB, Ruddick KR, Webster CE, Burkey TJ.
PMID: 19231828
J Phys Chem A. 2009 Mar 26;113(12):2666-76. doi: 10.1021/jp8068909.

We review recent studies of processes relevant to photoinduced linkage isomerization of organometallic systems with the goal of preparing organometallics with an efficient and ultrafast photochromic response. The organometallic system thus corresponds to two linkage isomers with different electronic...

The case against (-)-catechin involvement in allelopathy of Centaurea stoebe (spotted knapweed).

Plant signaling & behavior

Duke SO, Dayan FE, Bajsa J, Meepagala KM, Hufbauer RA, Blair AC.
PMID: 19816095
Plant Signal Behav. 2009 May;4(5):422-4. doi: 10.1007/s10886-008-9587-z. Epub 2009 May 25.

Proving allelopathic chemical interference is a daunting endeavor, in that production and movement of a phytotoxin from a donor plant to a receiving plant must be demonstrated in the substrate in which the plants grow, which is usually a...

Showing 1 to 12 of 171 entries