Investigation into the Mechanism of Isoxaben Tolerance in Dicot Weeds
Isoxaben is an inhibitor of the synthesis of cellulose from glucose. Some dicot weed species are relatively insensitive to isoxaben inhibition. This study investigates mechanisms by which decreased sensitivity may occur in three dicot weed species: catchweed bedstraw, redroot pigweed, and velvetleaf...
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| Veröffentlicht in: | Weed science 1994-04, Vol.42 (2), p.163-167 |
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| container_end_page | 167 |
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| container_title | Weed science |
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| creator | Schneegurt, Mark A. Heim, Dale R. Larrinua, Ignacio M. |
| description | Isoxaben is an inhibitor of the synthesis of cellulose from glucose. Some dicot weed species are relatively insensitive to isoxaben inhibition. This study investigates mechanisms by which decreased sensitivity may occur in three dicot weed species: catchweed bedstraw, redroot pigweed, and velvetleaf. Dose response curves were generated to determine I50 values for the inhibition of glucose incorporation into cellulose by isoxaben and compared to that of a sensitive species, mouse-ear cress. Metabolic detoxification and uptake rates were measured and the degree of tolerance conferred by these mechanisms was calculated. In all cases, metabolic detoxification was negligible. Lower uptake rates were significant but minor components of tolerance in all species. It is suggested that the principal cause of isoxaben tolerance in these dicot weed species is decreased sensitivity at the target site. |
| doi_str_mv | 10.1017/S0043174500080218 |
| format | Article |
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Some dicot weed species are relatively insensitive to isoxaben inhibition. This study investigates mechanisms by which decreased sensitivity may occur in three dicot weed species: catchweed bedstraw, redroot pigweed, and velvetleaf. Dose response curves were generated to determine I50 values for the inhibition of glucose incorporation into cellulose by isoxaben and compared to that of a sensitive species, mouse-ear cress. Metabolic detoxification and uptake rates were measured and the degree of tolerance conferred by these mechanisms was calculated. In all cases, metabolic detoxification was negligible. Lower uptake rates were significant but minor components of tolerance in all species. It is suggested that the principal cause of isoxaben tolerance in these dicot weed species is decreased sensitivity at the target site.</description><identifier>ISSN: 0043-1745</identifier><identifier>EISSN: 1550-2759</identifier><identifier>DOI: 10.1017/S0043174500080218</identifier><identifier>CODEN: WEESA6</identifier><language>eng</language><publisher>Cambridge, UK: Cambridge University Press</publisher><subject>ABUTILON THEOPHRASTI ; Agronomy. Soil science and plant productions ; AMARANTHUS ; ARABIDOPSIS THALIANA ; Biological and medical sciences ; Biosynthesis ; Chemical control ; DESINTOXICACION ; DETOXIFICATION ; Fundamental and applied biological sciences. Psychology ; GALIUM ; HERBICIDAS ; HERBICIDE ; Herbicide resistance ; Herbicides ; Metabolism ; METABOLISME ; METABOLISMO ; Metabolites ; Parasitic plants. Weeds ; Physiology, Chemistry and Biochemistry ; Phytopathology. Animal pests. Plant and forest protection ; Phytotrons ; Plants ; Radioactive decay ; Scintillation ; Seedlings ; Weeds</subject><ispartof>Weed science, 1994-04, Vol.42 (2), p.163-167</ispartof><rights>Copyright © 1994 by the Weed Science Society of America</rights><rights>Copyright 1994 The Weed Science Society of America</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c356t-2d13c17c9a47ef7b81755e4483f0c859a06e69ffc0938addd2c7c8004d02535e3</citedby><cites>FETCH-LOGICAL-c356t-2d13c17c9a47ef7b81755e4483f0c859a06e69ffc0938addd2c7c8004d02535e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/4045388$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/4045388$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,776,780,799,27901,27902,57992,58225</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=6075508$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Schneegurt, Mark A.</creatorcontrib><creatorcontrib>Heim, Dale R.</creatorcontrib><creatorcontrib>Larrinua, Ignacio M.</creatorcontrib><title>Investigation into the Mechanism of Isoxaben Tolerance in Dicot Weeds</title><title>Weed science</title><addtitle>Weed sci</addtitle><description>Isoxaben is an inhibitor of the synthesis of cellulose from glucose. Some dicot weed species are relatively insensitive to isoxaben inhibition. This study investigates mechanisms by which decreased sensitivity may occur in three dicot weed species: catchweed bedstraw, redroot pigweed, and velvetleaf. Dose response curves were generated to determine I50 values for the inhibition of glucose incorporation into cellulose by isoxaben and compared to that of a sensitive species, mouse-ear cress. Metabolic detoxification and uptake rates were measured and the degree of tolerance conferred by these mechanisms was calculated. In all cases, metabolic detoxification was negligible. Lower uptake rates were significant but minor components of tolerance in all species. It is suggested that the principal cause of isoxaben tolerance in these dicot weed species is decreased sensitivity at the target site.</description><subject>ABUTILON THEOPHRASTI</subject><subject>Agronomy. Soil science and plant productions</subject><subject>AMARANTHUS</subject><subject>ARABIDOPSIS THALIANA</subject><subject>Biological and medical sciences</subject><subject>Biosynthesis</subject><subject>Chemical control</subject><subject>DESINTOXICACION</subject><subject>DETOXIFICATION</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>GALIUM</subject><subject>HERBICIDAS</subject><subject>HERBICIDE</subject><subject>Herbicide resistance</subject><subject>Herbicides</subject><subject>Metabolism</subject><subject>METABOLISME</subject><subject>METABOLISMO</subject><subject>Metabolites</subject><subject>Parasitic plants. Weeds</subject><subject>Physiology, Chemistry and Biochemistry</subject><subject>Phytopathology. Animal pests. Plant and forest protection</subject><subject>Phytotrons</subject><subject>Plants</subject><subject>Radioactive decay</subject><subject>Scintillation</subject><subject>Seedlings</subject><subject>Weeds</subject><issn>0043-1745</issn><issn>1550-2759</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1994</creationdate><recordtype>article</recordtype><recordid>eNp9kMFKAzEURYMoWKsfoLjIwu3oyySZJEupVQsVF21xOaSZpE1pJyUZRf_eGaZ0I7h6i3Pv43ARuiZwT4CIhxkAo0QwDgASciJP0IBwDlkuuDpFgw5nHT9HFyltAEiREzVA40n9ZVPjV7rxoca-bgJu1ha_WbPWtU87HByepPCtl7bG87C1UdfGtkH85E1o8Ie1VbpEZ05vk7063CFaPI_no9ds-v4yGT1OM0N50WR5RaghwijNhHViKYng3DImqQMjudJQ2EI5Z0BRqauqyo0wslWvIOeUWzpEpP9rYkgpWlfuo9_p-FMSKLsdyj87tJ27vrPXyeit6_x9OhYLaB2gi932sU1qQjxiBoxT2eGbHjsdSr2K7YfFTHFgQqoW0oOW3i2jr1a23ITPWLdT_CP2C3CMfK0</recordid><startdate>19940401</startdate><enddate>19940401</enddate><creator>Schneegurt, Mark A.</creator><creator>Heim, Dale R.</creator><creator>Larrinua, Ignacio M.</creator><general>Cambridge University Press</general><general>Weed Science Society of America</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>19940401</creationdate><title>Investigation into the Mechanism of Isoxaben Tolerance in Dicot Weeds</title><author>Schneegurt, Mark A. ; Heim, Dale R. ; Larrinua, Ignacio M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c356t-2d13c17c9a47ef7b81755e4483f0c859a06e69ffc0938addd2c7c8004d02535e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1994</creationdate><topic>ABUTILON THEOPHRASTI</topic><topic>Agronomy. Soil science and plant productions</topic><topic>AMARANTHUS</topic><topic>ARABIDOPSIS THALIANA</topic><topic>Biological and medical sciences</topic><topic>Biosynthesis</topic><topic>Chemical control</topic><topic>DESINTOXICACION</topic><topic>DETOXIFICATION</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>GALIUM</topic><topic>HERBICIDAS</topic><topic>HERBICIDE</topic><topic>Herbicide resistance</topic><topic>Herbicides</topic><topic>Metabolism</topic><topic>METABOLISME</topic><topic>METABOLISMO</topic><topic>Metabolites</topic><topic>Parasitic plants. Weeds</topic><topic>Physiology, Chemistry and Biochemistry</topic><topic>Phytopathology. Animal pests. Plant and forest protection</topic><topic>Phytotrons</topic><topic>Plants</topic><topic>Radioactive decay</topic><topic>Scintillation</topic><topic>Seedlings</topic><topic>Weeds</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Schneegurt, Mark A.</creatorcontrib><creatorcontrib>Heim, Dale R.</creatorcontrib><creatorcontrib>Larrinua, Ignacio M.</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>Weed science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Schneegurt, Mark A.</au><au>Heim, Dale R.</au><au>Larrinua, Ignacio M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Investigation into the Mechanism of Isoxaben Tolerance in Dicot Weeds</atitle><jtitle>Weed science</jtitle><addtitle>Weed sci</addtitle><date>1994-04-01</date><risdate>1994</risdate><volume>42</volume><issue>2</issue><spage>163</spage><epage>167</epage><pages>163-167</pages><issn>0043-1745</issn><eissn>1550-2759</eissn><coden>WEESA6</coden><abstract>Isoxaben is an inhibitor of the synthesis of cellulose from glucose. Some dicot weed species are relatively insensitive to isoxaben inhibition. This study investigates mechanisms by which decreased sensitivity may occur in three dicot weed species: catchweed bedstraw, redroot pigweed, and velvetleaf. Dose response curves were generated to determine I50 values for the inhibition of glucose incorporation into cellulose by isoxaben and compared to that of a sensitive species, mouse-ear cress. Metabolic detoxification and uptake rates were measured and the degree of tolerance conferred by these mechanisms was calculated. In all cases, metabolic detoxification was negligible. Lower uptake rates were significant but minor components of tolerance in all species. It is suggested that the principal cause of isoxaben tolerance in these dicot weed species is decreased sensitivity at the target site.</abstract><cop>Cambridge, UK</cop><pub>Cambridge University Press</pub><doi>10.1017/S0043174500080218</doi><tpages>5</tpages></addata></record> |
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| ispartof | Weed science, 1994-04, Vol.42 (2), p.163-167 |
| issn | 0043-1745 1550-2759 |
| language | eng |
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| source | Jstor Complete Legacy |
| subjects | ABUTILON THEOPHRASTI Agronomy. Soil science and plant productions AMARANTHUS ARABIDOPSIS THALIANA Biological and medical sciences Biosynthesis Chemical control DESINTOXICACION DETOXIFICATION Fundamental and applied biological sciences. Psychology GALIUM HERBICIDAS HERBICIDE Herbicide resistance Herbicides Metabolism METABOLISME METABOLISMO Metabolites Parasitic plants. Weeds Physiology, Chemistry and Biochemistry Phytopathology. Animal pests. Plant and forest protection Phytotrons Plants Radioactive decay Scintillation Seedlings Weeds |
| title | Investigation into the Mechanism of Isoxaben Tolerance in Dicot Weeds |
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