Linked Life Data

16665371

Source:http://linkedlifedata.com/resource/pubmed/id/16665371

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2010-6-29
pubmed:abstractText
A dinitroaniline-resistant (R) biotype of Eleusine indica (L.) Gaertner. (goosegrass) is demonstrated to be cross-resistant to a structurally non-related herbicide, amiprophosmethyl, and supersensitive to two other classes of compounds which disrupt mitosis. These characteristics of the R biotype were discovered in a comparative test of the effects of 24 different antimitotic compounds on the R biotype and susceptible (S) wild-type Eleusine. The compounds tested could be classified into three groups based upon their effects on mitosis in root tips of the susceptible (S) biotype. Class I compounds induced effects like the well known mitotic disrupter colchicine: absence of cortical and spindle microtubules, mitosis arrested at prometaphase, and the formation of polymorphic nuclei after arrested mitosis. The R biotype was resistant to treatment with some class I inhibitors (all dinitroaniline herbicides and amiprophosmethyl) but not all (e.g. colchicine, podophyllotoxin, vinblastine, and pronamide). Roots of the R biotype, when treated with either dinitroaniline herbicides or amiprophosmethyl, exhibited no or only small increases in the mitotic index nor were the spindle and cortical microtubules affected. Compounds of class II (carbamate herbicides and griseofulvin) cause misorientation of microtubules which results in multinucleated cells. Compounds of class III (caffeine and structually related alkaloids) cause imcomplete cell walls to form at telophase. Each of these last two classes of compounds affected the R biotype more than the S biotype (supersensitivity). The cross-resistance and high levels of resistance of the R biotype of Eleusine to the dinitroaniline herbicides and the structurally distinct herbicide, amiprophosmethyl, indicate that a mechanism of resistance based upon metabolic modification, translocation, or compartmentation of the herbicides is probably not operative.
pubmed:commentsCorrections
http://linkedlifedata.com/resource/pubmed/commentcorrection/16665371-16592984, http://linkedlifedata.com/resource/pubmed/commentcorrection/16665371-16593430, http://linkedlifedata.com/resource/pubmed/commentcorrection/16665371-17743197, http://linkedlifedata.com/resource/pubmed/commentcorrection/16665371-363278, http://linkedlifedata.com/resource/pubmed/commentcorrection/16665371-3899331, http://linkedlifedata.com/resource/pubmed/commentcorrection/16665371-4349016, http://linkedlifedata.com/resource/pubmed/commentcorrection/16665371-4419583, http://linkedlifedata.com/resource/pubmed/commentcorrection/16665371-4854787, http://linkedlifedata.com/resource/pubmed/commentcorrection/16665371-568309, http://linkedlifedata.com/resource/pubmed/commentcorrection/16665371-620696, http://linkedlifedata.com/resource/pubmed/commentcorrection/16665371-6479584, http://linkedlifedata.com/resource/pubmed/commentcorrection/16665371-6863393, http://linkedlifedata.com/resource/pubmed/commentcorrection/16665371-6887245, http://linkedlifedata.com/resource/pubmed/commentcorrection/16665371-6986988, http://linkedlifedata.com/resource/pubmed/commentcorrection/16665371-7088133, http://linkedlifedata.com/resource/pubmed/commentcorrection/16665371-7449772
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Apr
pubmed:issn
0032-0889
pubmed:author
pubmed:issnType
Print
pubmed:volume
83
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
956-64
pubmed:dateRevised
2010-9-15
pubmed:year
1987
pubmed:articleTitle
A Dinitroaniline-Resistant Mutant of Eleusine indica Exhibits Cross-Resistance and Supersensitivity to Antimicrotubule Herbicides and Drugs.
pubmed:affiliation
United States Department of Agriculture, Agricultural Research Service, Southern Weed Science Laboratory, P. O. Box 350, Stoneville, Mississippi 38776.
pubmed:publicationType
Journal Article