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00000cam a2200000Ii 4500 |
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in00000071436 |
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20220104090729.0 |
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770519s1976 txua bm 000 0 eng d |
| 035 |
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|9 AAJ9769AM
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|a (OCoLC)02979541
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|a (OCoLC)2979541
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|a (OCoLC)ocm02979541
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| 040 |
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|a TXA
|b eng
|c TXA
|d OCLCQ
|d OCLCO
|d TXA
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| 049 |
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|a TXAM
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| 099 |
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|a 1976
|a Dissertation
|a H646
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| 100 |
1 |
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|a Hill, Dennis Wayne.
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|a Analysis of hymenoxon in plant tissue and the disposition of hymenoxon in the rabbit /
|c by Dennis Wayne Hill.
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| 264 |
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|a [College Station, Tex.] :
|b Hill,
|c 1976.
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| 300 |
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|a xi, 94 leaves :
|b illustrations, graphs ;
|c 28 cm
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| 336 |
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|a text
|b txt
|2 rdacontent
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| 337 |
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|a unmediated
|b n
|2 rdamedia
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| 338 |
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|a volume
|b nc
|2 rdacarrier
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| 500 |
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|a "Major subject: Biochemistry."
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| 500 |
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|a Vita.
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| 502 |
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|c Texas A & M University
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| 504 |
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|a Includes bibliographical references (leaves 91-93).
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3 |
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|a Extracts of B. multiradiata and H. hoopsii were analyzed by GLC and GC-MS for the presence of a toxic sesquiterpene lactone, hymenoxon. A compound was found in both plants that co-chromatographed with hymenoxon on 3% OV-17 and 3% QF-1 GLC columns and gave a mass spectrum statistically identical to the mass spectrum of hymenoxon. Extracts of both plants were treated with base to convert hymenoxon to psilotropin. Hymenoxon could not be detected in the base treated extracts; however, a compound was detected that co-chromatographed with psilotropin on 3% Ov-17 and 3% QF-1 columns and gave a mass spectrum statistically identical to the mass spectrum of psilotropin. Hymenoxon was successfully extracted with ethyl acetate from ground plant material and quantitatively was analyzed on a 3% Ov-17 GLC column. Dimethoxyhymenoxon or flavone was used as the internal standard. Recovery of fortified hymenoxon from plant tissue was 100-105% and the standard deviation of five analyses was 0.049%. Hymenoxon was shown to react with the sulfhydryl group of cysteine. The second order rate constant for the reaction was 504 liters/mole min. Studies on the reaction of hymenoxon in alkaline solution indicated that at pH 10-12 hymenoxon was converted to intermediates that formed psilotropin and greenein when the pH was made acid. Hymenoxon added to whole sheep blood became sequestered. Evidence was obtained that suggested that hymenoxon was reacting with endogeneous compounds within the erythrocytes..
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| 650 |
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|a Hymenoxys odoxata DC
|x Toxicology.
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| 650 |
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|a Livestock poisoning plants.
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| 650 |
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|a Poisonous plants.
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| 650 |
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|a Veterinary toxicology.
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| 650 |
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4 |
|a Biochemistry
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| 655 |
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7 |
|a Academic theses
|2 lcgft
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| 700 |
1 |
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|a Camp, Bennie J.,
|e degree supervisor.
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| 700 |
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|a Creger, C. R.
|e degree committee member.
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| 700 |
1 |
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|a Crookshank, H. R.,
|e degree committee member.
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| 700 |
1 |
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|a Davis, R. H.,
|e degree committee member.
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| 710 |
2 |
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|a Texas A & M University,
|e degree granting institution.
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| 856 |
4 |
1 |
|u http://proxy.library.tamu.edu/login?url=http://proquest.umi.com/pqdweb?did=759267851&sid=1&Fmt=2&clientId=2945&RQT=309&VName=PQD
|z Link to ProQuest copy
|t 0
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| 856 |
4 |
1 |
|u https://hdl.handle.net/1969.1/DISSERTATIONS-93384
|z Link to OAKTrust copy
|t 0
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| 994 |
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|a C0
|b TXA
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| 999 |
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|t 0
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| 952 |
f |
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|p noncirc
|a Texas A&M University
|b J.J. Pickle Campus
|c High Density Repository
|s HDR
|d Remote Storage
|t 0
|e 1976 Dissertation H646
|h Other scheme
|i unmediated -- volume
|m A14840975666
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| 952 |
f |
f |
|a Texas A&M University
|b College Station
|c Electronic Resources
|s www_evans
|d Available Online
|t 0
|e 1976 Dissertation H646
|h Other scheme
|
| 998 |
f |
f |
|a 1976 Dissertation H646
|t 0
|l Available Online
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| 998 |
f |
f |
|a 1976 Dissertation H646
|t 0
|l Remote Storage
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