@article {51050, title = {Extracts of Fluorensia cernua (L): volatile constituents and antifungal, antialgal, and antitermite bioactivities}, journal = {Journal of Chemical Ecology}, volume = {27}, number = {11}, year = {2001}, month = {November 1, 2001}, pages = {2263-2273}, abstract = {The chemical components of 36 kg of tarbush (Flourensia cernua) leaves were fractionated by extracting successively with hexanes, diethyl ether, and ethanol. Volatile profiles of each fraction were identified using GCMS. The hexanes fraction was found to contain mostly monoterpenoids while the ethanol fraction volatiles were primarily sesquiterpenoids. The crude fractions were tested for activity against fungi, algae, and termites. Application of as little as 1 \æg of the essential oil obtained from the hexanes fraction was sufficient to provide visible antifungal activity in bioautography assays. The diethyl ether fraction showed selective activity against the cyanobacterium responsible for 2-methylisoborneol induced off- flavor sometimes associated with catfish farming operations. All three fractions exhibited a high degree of antitermite activity.}, url = {/files/bibliography/01-049.pdf}, author = {M.R. Tellez and Richard E. Estell and E.L. Fredrickson and Powell, J.E. and Wedge, D.E. and Schrader, K. and Kobaisy, M.M.} } @conference {51190, title = {Activity and volatile constituents of crude fractions of Flourensia cernua (L)}, booktitle = {218th American Chemical Society National Meeting}, year = {1999}, month = {August 22-26, 19}, pages = {Abstract p. 45}, address = {New Orleans, LA}, abstract = {

Crude fractionation of tarbush (Flourensia cernua) was performed by extracting successively with hexanes, diethylether, and ethanol, 35 Kg of leaves in approximately 7 Kg batches. Volatiles from these fractions were examined and the relevance of these findings discussed in relation to palatability studies. The hexane fraction was found to contain most of the monoterpenes while sesquiterpenes made up most of the ethanol fraction. The crude fractions were further submitted to fungal, algal, and termite bioassays. The ether fraction shows the highest activity against fungi. The hexane fraction shows selective activity against the cyanobacterium responsible for methylisoborneol induced off-flavor problem in catfish farming operations. All three fractions show a high degree of antitermite activity.

}, keywords = {activity, Flourensia cernua (L), volatile constituents}, author = {M.R. Tellez and Schrader, K. and Wedge, D.E. and Duke, S.O. and Richard E. Estell and E.L. Fredrickson and Powell, J.E.} } @article {51252, title = {Essential oil of Chrysothamnus pulchellus (Gray) Greene ssp. pulchellus}, journal = {Journal of Essential Oil Research}, volume = {10}, year = {1998}, month = {1998}, pages = {201-204}, abstract = {

The essential oil profile of Chrysothamnus pulchellus was examined. Samples were collected from the Jornada Experimental Range in south central New Mexico and GC/MS and retention indices were used to identify 48 oil components. Sesquicineole (22.7\%), β-phellandrene (14.9\%), (Z)-β-ocimene (9.4\%), β-pinene (8.8\%), (E)-β-ocimene (6.4\%), β-caryophyllene (3.3\%), and d-cadinene (2.8\%) were the major components of the steam distilled oil.

}, keywords = {Asteraceae, Chrysothamnus pulchellus, essential oil composition, sesquicineole, β-phellandrene.}, url = {/files/bibliography/521.pdf}, author = {M.R. Tellez and Richard E. Estell and E.L. Fredrickson and Kris Havstad} } @article {51305, title = {Essential oil of Dyssodia acerosa DC}, journal = {Journal of Agricultural and Food Chemistry}, volume = {45}, number = {8}, year = {1997}, month = {1997}, pages = {3276-3278}, abstract = {

Samples of the suffrutescent Dyssodia acerosa DC. were collected from the Jornada Experimental Range in south-central New Mexico, and GC/MS and retention indices were used to identify 62 components from the steam-distilled oil. Chrysanthenone (34.8\%), limonene (14.5\%), camphor (12.3\%), α-pinene (6.8\%), sabinene (4.3\%), camphene (3.9\%), (E)-β-ocimene (2.5\%), 1,8-cineole (2.2\%), myrcene (2.0\%), and cis-sabinene hydrate (1.6\%) were the major components of the steam-distilled oil.

}, keywords = {Asteraceae, camphor, chrysanthenone, Dyssodia acerosa, essential oil composition, limonene}, doi = {10.1021/jf9701502}, url = {/files/bibliography/637.pdf}, author = {M.R. Tellez and Richard E. Estell and E.L. Fredrickson and Kris Havstad} } @article {51306, title = {Essential oil of Flourensia cernua DC}, journal = {Journal of Essential Oil Research}, volume = {9}, year = {1997}, month = {November 1, 1997}, pages = {619-624}, abstract = {The leaf oil of Flourensia cernua DC, collected from the Jornada Experimental Range in southcentral New Mexico was analyzed, GC/MS and retention indices were used to identify 89 components. {\^a}-Eudesmol (24.5\%), -eudesmol (6.9\%), limonene (6.6\%), {\~a}-eudesmol (4.6\%), myrcene (3.8\%), borneol (3.3\%), and {\"a}-3-carene (3.0\%) were major components of the steam distilled oil. In an ethanol extract of intact leaves, flourensadiol (44.6\%), artemisia alcohol (5.5\%), viridiflorol (2.7\%), and borneol (2.0\%) were the main components.}, url = {/files/bibliography/97-001.pdf}, author = {M.R. Tellez and Richard E. Estell and E.L. Fredrickson and Kris Havstad} }