Weed resistance to synthetic auxin herbicides

…, DS Riar, NM Satchivi, J Torra, P Westra… - Pest management …, 2018 - Wiley Online Library
Herbicides classified as synthetic auxins have been most commonly used to control broadleaf
weeds in a variety of crops and in non‐cropland areas since the first synthetic auxin …

Gene amplification confers glyphosate resistance in Amaranthus palmeri

…, C Preston, JE Leach, P Westra - Proceedings of the …, 2010 - National Acad Sciences
… There was a strong correlation (r = 0.76, P < 0.0001) between relative EPSPS genomic copy
… EPSPS signal intensity had a significant positive relationship (R 2 = 0.85, P < 0.0001) with …

The power and potential of genomics in weed biology and management

…, JS McElroy, A Merotto Jr, P Westra… - Pest management …, 2018 - Wiley Online Library
There have been previous calls for, and efforts focused on, realizing the power and potential
of weed genomics for better understanding of weeds. Sustained advances in genome …

Gene amplification of 5-enol-pyruvylshikimate-3-phosphate synthase in glyphosate-resistant Kochia scoparia

…, D Giacomini, C Robin Buell, JE Leach, P Westra - Planta, 2015 - Springer
Main conclusion Field-evolved resistance to the herbicide glyphosate is due to amplification
of one of two EPSPS alleles, increasing transcription and protein with no splice variants or …

Mechanism of resistance of evolved glyphosate-resistant Palmer amaranth (Amaranthus palmeri)

…, SM Ward, JE Leach, C Preston, P Westra - Journal of Agricultural …, 2011 - ACS Publications
Evolved glyphosate resistance in weedy species represents a challenge for the continued
success and utility of glyphosate-resistant crops. Glyphosate functions by inhibiting the plant …

Interspecific hybridization transfers a previously unknown glyphosate resistance mechanism in Amaranthus species

…, B Bukun, C Preston, JE Leach, P Westra - Evolutionary …, 2012 - Wiley Online Library
A previously unknown glyphosate resistance mechanism, amplification of the 5‐enolpyruvyl
shikimate‐3‐phosphate synthase gene, was recently reported in Amaranthus palmeri. This …

Stability of corn (Zea mays)-velvetleaf (Abutilon theophrasti) interference relationships

…, SA Clay, R Schmenk, JJ Kells, K Howatt, P Westra - Weed Science, 1996 - cambridge.org
The crop-weed interference relationship is a critical component of bioeconomic weed
management models. Multi-year field experiments were conducted at five locations to determine …

Why early season weed control is important in maize

ER Page, D Cerrudo, P Westra, M Loux, K Smith… - Weed Science, 2012 - cambridge.org
Control of early-emerging weeds is essential to protect the yield potential of maize. An
understanding of the physiological changes that occur as a result of weed interference is required …

Reactive oxygen species trigger the fast action of glufosinate

HK Takano, R Beffa, C Preston, P Westra, FE Dayan - Planta, 2019 - Springer
… Glufosinate (C 5 H 12 NO 4 P) targets GS and causes catastrophic consequences leading
to rapid plant cell death, and the causes for phytoxicity have been attributed to ammonia …

Tandem amplification of a chromosomal segment harboring 5-enolpyruvylshikimate-3-phosphate synthase locus confers glyphosate resistance in Kochia scoparia

…, S Sehgal, VK Varanasi, A Wiersma, P Westra… - Plant …, 2014 - academic.oup.com
… Wiersma and P. Westra, unpublished data) suggest that the EPSPS copy number in K.
scoparia plants increases through an adaptive process. Furthermore, hybridization of EPSPS …