Horseweed with reduced susceptibility to glyphosate found in the Czech Republic
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F09%3A00000716" target="_blank" >RIV/00027006:_____/09:00000716 - isvavai.cz</a>
Alternative codes found
RIV/61389030:_____/09:00335901
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Horseweed with reduced susceptibility to glyphosate found in the Czech Republic
Original language description
Plants of horseweed (Conyza canadensis) apparently resistant (R) to glyphosate were found at railway station in the Czech Republic. To compare, plants expected to be susceptible (S) were collected in areas where no herbicides had been used. Plants of both sets were treated at the rosette stage with glyphosate at the recommended dose. S plants died, while leaves of R plants remained green and new leaves were grown a few weeks after glyphosate application. There were differences in the accumulation of shikimate between S and R plants 3-10 days after treatment, it decreased more than 4-fold in R plants, while in S plants increased 3-fold. A conserved region of the epsps gene, in which mutations are known to confer resistance, was amplified from both S andR plants and sequenced, but no changes in the encoded amino acid sequence were found. Our results suggest that the reduced susceptibility to glyphosate may be due to impaired herbicide translocation.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
GF - Diseases, pests, weeds and plant protection
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Agricultural and Food Chemistry
ISSN
0021-8561
e-ISSN
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Volume of the periodical
57
Issue of the periodical within the volume
15
Country of publishing house
US - UNITED STATES
Number of pages
5
Pages from-to
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UT code for WoS article
000268537300065
EID of the result in the Scopus database
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