23 documents found, page 1 of 3
Enhanced detoxification via Cyt-P450 governs cross-tolerance to ALS-inhibiting ...
Palma-Bautista, Candelario; Vásquez-García, José G.; Portugal, João; Bastida, Fernando; Alcántara-de la Cruz, Ricardo; Osuna-Ruiz, Maria D.; Torra, JoelCentaurea is a genus of winter weeds with a similar life cycle and competitive traits, which occurs in small-grains production fields in the central-southern of the Iberian Peninsula. However, most of herbicides recommended for weed management in wheat show poor control of Centaurea species. This study summarizes the biology, herbicide tolerance to acetolactate synthase (ALS) inhibitors, and recommended chemica...
Filago pyramidata tolerant to ALS-Inhibiting herbicides: A new invasive weed in...
Palma-Bautista, Candelario; Vásquez-García, José; Domínguez-Valenzuela, José; Alcántara-de la Cruz, Ricardo; De Prado, Rafael; Portugal, JoãoWeeds that usually grow in non-agricultural areas have become increasingly common invading perennial crops. Species of the genus Filago, in addition to invading Spanish olive groves, have developed certain levels of natural tolerance to the acetolactate synthase (ALS) inhibiting herbicide flazasulfuron. The objective of this study was to determine the level and the mechanism involved in the tolerance to flazasu...
Different non-target site mechanisms endow different glyphosate susceptibility ...
Vázquez-García, José; Torra, Joel; Palma-Bautista, Candelario; Bastida, Fernando; Alcántara-de la Cruz, Ricardo; Portugal, João; De Prado, RafaelIn recent decades, cereal agriculture across main producing areas in Spain has progressively adopted direct sowing, associated with an increased use of herbicides in pre-sowing. Weedy species from genus Avena have been observed after the application of glyphosate in wheat. Here, Avena fatua (two accessions), Avena byzantina and Avena sterilis subsp. sterilis, one accession each, were taxonomically characterized...
The Asp376Glu mutation and enhanced metabolism controlling the resistance of AL...
Domínguez-Valenzuela, José; Vázquez-García, José; Castro, Patricia; Palma-Bautista, Candelario; Cruz-Hipolito, Hugo; Rey, Maria-DoloresA study was carried out to determine the ALS (acetolactate synthase)-inhibitor herbicide resistance in the Mexican grass Ixophorus unisetus, a troublesome weed in corn crops in Mexico. First, the resistance was confirmed in field screening assays. Eight populations that survived nicosulfuron treatment at a field rate of 40 g ai ha−1 were labeled as putative-resistant. Dose–response trials demonstrated a high re...
Target-site and non-target-site resistance mechanisms confer multiple resistanc...
Palma-Bautista, Candelario; Belluccini, Pablo; Vázquez-Garcia, José G.; Alcántara-de la Cruz, Ricardo; Barro, Francisco; De Prado, RafaelCarduus acanthoides L. is mainly a range-land weed, but in the 2010s has begun to invade GM crop production systems in C´ ordoba (Argentina), where glyphosate and 2,4-D have been commonly applied. In 2020, C. acanthoides was found with multiple resistance to these two herbicides. In this study, the mechanisms that confer multiple resistance to glyphosate and 2,4-D, were characterized in one resistant (R) popula...
Convergent adaptation of multiple herbicide resistance to auxin mimics and ALS-...
Domínguez-Valenzuela, José; Palma-Bautista, Candelario; Vázquez-Garcia, José; Yanniccari, Marcos; Gigón, Ramón; Alcántara-de la Cruz, RicardoHerbicide-resistant weeds have been identified and recorded on every continent where croplands are available. Despite the diversity of weed communities, it is of interest how selection has led to the same consequences in distant regions. Brassica rapa is a widespread naturalized weed that is found throughout temperate North and South America, and it is a frequent weed among winter cereal crops in Argentina and ...
Tribenuron-methyl metabolism and the rare Pro197Phe double mutation together wi...
Palma-Bautista, Candelario; Vázquez-Garcia, José G.; Osuna, Maria D.; Torra, Joel; Lozano-Juste, Jorge; Gherekhloo, Javid; De Prado, RafaelMultiple resistance mechanisms to ALS inhibitors and auxin mimics in two Papaver rhoeas populations were investigated in wheat fields from Portugal. Dose-response trials, also with malathion (a cytochrome P450 inhibitor), cross-resistance patterns for ALS inhibitors and auxin mimics, alternative herbicides tests, 2,4-D and tribenuron-methyl absorption, translocation and metabolism experiments, together with ALS...
An Asp376Glu substitution in ALS gene and enhanced metabolism confers high trib...
Palma-Bautista, Candelario; Vasquez-García, José; Osuna, Maria D.; Garcia-Garcia, Blanca; Torra, Joel; De Prado, Rafael; Fernandes, JoãoAcetolactate synthase (ALS) inhibiting herbicides (group 2) have been widely applied for the last 20 years to control Sinapis alba in cereal crops from southern Spain. In 2008, a tribenuron-methyl (TM) resistant (R) S. alba population was first reported in a cereal field in Malaga (southern Spain). In 2018, three suspected R S. alba populations (R1, R2 and R3) to TM were collected from three different fields in...
Current status of herbicide resistance in the Iberian Peninsula: Future trends ...
Torra, Joel; Montull, José M.; Calha, Isabel M.; Osuna, Maria D.; De Prado, Rafael; Fernandes, JoãoThe evolution of herbicide resistance in weeds has emerged as one of the most serious threats to sustainable food production systems, which necessitates the evaluation of herbicides to determine their efficacy. The first herbicide resistance case in the Iberian Peninsula was reported about 50 years ago, wherein Panicum dichotomiflorum was found to be resistant (R) to atrazine in Spanish maize fields. Since then...
Respuesta fisiológica de plantas de café (Coffea arabica L.) a glifosato depend...
de Carvalho, Leonardo Bianco; Alves, Pedro Luis da Costa Aguiar [UNESP]; Bianco, Silvano [UNESP]; De Prado, RafaelMade available in DSpace on 2022-04-29T06:01:22Z (GMT). No. of bitstreams: 0 Previous issue date: 2012-01-01; Glyphosate is the main herbicide used in coffee (Coffea arabica L.) plantations in Brazil. Problems with herbicide drift commonly occur in orchard fields due to non-adequate spraying conditions. A series of experiments was carried out aiming to evaluate physiological dose-response of C. arabica plants s...