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Agronomy
Special Issues
Recent Insights in Herbicide Biochemistry, Herbicide Resistance and Weed Management
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Recent Insights in Herbicide Biochemistry, Herbicide Resistance and Weed Management

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Weed Science and Weed Management".

Deadline for manuscript submissions: closed (31 July 2023) | Viewed by 5794

Special Issue Editors

Dr. Candelario Palma-Bautista

E-Mail Website
Guest Editor
Department of Biochemistry and Molecular Biology, University of Cordoba, 14071 Cordoba, Spain
Interests: herbicides; weeds; herbicide biochemistry; resistant mechanisms; herbicide resistance; herbicide metabolism; multiple and cross resistance
Dr. José Alfredo Domínguez-Valenzuela

E-Mail Website
Guest Editor
Department of Agricultural Parasitology, Chapingo Autonomous University, Texcoco 56230, Mexico
Interests: agricultural plant science; herbicide resistance; biology and ecology of weeds; weeds; multiple and cross resistance
Dr. Ricardo Alcántara-de la Cruz

E-Mail Website
Guest Editor
Center for Advanced Research in Weed Science, Department of Plant Protection, School of Agriculture, São Paulo State University, Botucatu, SP, Brazil
Interests: herbicide cross resistance; herbicide multiple resistance; herbicides; weeds; CytP450; GST; resistant mechanisms
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Weed resistance to herbicides has become a major problem in agriculture. This is evidenced by the exponential increase in reports of herbicide-resistant weeds, and fewer molecules are available to control them, exacerbating the problem. Weed management strategies involving the harmonic combination of chemical and non-chemical control practices are needed to delay the emergence of herbicide resistance and manage the existing cases. This requires the study of resistance at the biological, molecular, and physiological levels of resistance mechanisms. The study of resistance mechanisms at the target site (TSR) has led to the development of a wealth of knowledge thanks to cutting-edge science. However, non-target site resistance (NTSR) mechanisms have advanced in recent years, but still lag behind and it is of great interest to research the biochemistry of herbicide resistance that can leverage different disciplines to improve understanding. The exploration of these mechanisms may lead not only to the development of effective weed control strategies, but also the discovery of new herbicide molecules that are less likely to develop resistance.

This Special Issue aims to share knowledge on different aspects of herbicide biochemistry and herbicide resistance. Authors are invited to present research on herbicide biochemistry, mode of action, the discovery or development of new active molecules/ingredients, TSR and NTSR resistance mechanisms, and chemical and non-chemical weed management, as well as new technologies or strategies for weed management.

Dr. Candelario Palma-Bautista
Dr. José Alfredo Domínguez-Valenzuela
Dr. Ricardo Alcántara-de la Cruz
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Agronomy is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • biochemistry
  • herbicide resistance
  • resistance mechanisms
  • herbicides
  • weed management

Published Papers (4 papers)

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Research

13 pages, 5378 KiB  
Article
Morpho-Biochemical Responses of Brassica Coenospecies to Glyphosate Exposure at Pre- and Post-Emergence Stages
by Anamika Kashyap, Sujata Kumari, Pooja Garg, Ranjeet Kushwaha, Shikha Tripathi, Jyoti Sharma, Navin C. Gupta, Rajeev Ranjan Kumar, Harinder Vishwakarma, Ramcharan Bhattacharya, Rashmi Yadav, Jai Chand Rana and Mahesh Rao
Agronomy 2023, 13(7), 1831; https://doi.org/10.3390/agronomy13071831 - 10 Jul 2023
Cited by 2 | Viewed by 1104
Abstract
Crop wild relatives (CWRs) belonging to the Brassicaceae family possess extensive genetic diversity and have frequently been utilized in the enhancement of cultivated Brassica species. However, their tolerance to glyphosate, a widely used herbicide, has remained unknown. Our study examined the glyphosate response [...] Read more.
Crop wild relatives (CWRs) belonging to the Brassicaceae family possess extensive genetic diversity and have frequently been utilized in the enhancement of cultivated Brassica species. However, their tolerance to glyphosate, a widely used herbicide, has remained unknown. Our study examined the glyphosate response of 20 genotypes from the Brassicaceae family, which included genotypes within the U triangle and their wild relatives. We evaluated their behaviour based on morpho-biochemical responses, specifically focusing on the traits of germination percentage, root length, and survival percentage. By calculating the mean membership function value (MFV) for each genotype’s response to these traits, we classified them into three distinct groups: susceptible, moderately tolerant, and tolerant. Among these genotypes, Brassica rapa (NRCPB rapa 8) demonstrated tolerance to glyphosate, as indicated by their mean MFV value of 0.68. Moderate tolerance to glyphosate was observed in Brassica juncea (Pusa Jaikisan) with a mean MFV of 0.52. Conversely, Diplotaxis catholica, Diplotaxis muralis, and Enarthrocarpus lyratus were susceptible, with mean MFV values of 0.37, 0.35, and 0.34, respectively. These findings revealed varying levels of response to glyphosate among these genotypes, with some displaying significant tolerance. The study provides valuable insights into the herbicide tolerance of Brassica CWRs and emphasizes the potential use of phenotypic and biochemical markers in evaluating herbicide tolerance. Full article
(This article belongs to the Special Issue Recent Insights in Herbicide Biochemistry, Herbicide Resistance and Weed Management)
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14 pages, 2603 KiB  
Article
Absorption, Translocation, and Metabolism of Glyphosate and Imazethapyr in Smooth Pigweed with Multiple Resistance
by Daniel Nalin, Gustavo Vinícios Munhoz-Garcia, Ana Paula Werkhausen Witter, Vanessa Takeshita, Claudia de Oliveira, Fernando Storniolo Adegas, Valdemar Luiz Tornisielo, Rubem Silvério de Oliveira Junior and Jamil Constantin
Agronomy 2023, 13(7), 1720; https://doi.org/10.3390/agronomy13071720 - 27 Jun 2023
Viewed by 1361
Abstract
The evolution of herbicide-resistant weeds is the major challenge for chemical management worldwide, increasing production costs, and reducing yield. This work aimed to evaluate the putative resistance of the Amaranthus hybridus population from Candido Mota (CMT) to glyphosate and imazethapyr and to investigate [...] Read more.
The evolution of herbicide-resistant weeds is the major challenge for chemical management worldwide, increasing production costs, and reducing yield. This work aimed to evaluate the putative resistance of the Amaranthus hybridus population from Candido Mota (CMT) to glyphosate and imazethapyr and to investigate the non-target site mechanisms involved. Dose–response studies were conducted under greenhouse conditions and the control and biomass reduction were evaluated 28 days after application (DAA). Absorption, translocation, and metabolization studies were evaluated at 72 h after treatment (HAT) using radiometric techniques. The dose–response results show different responses among populations to glyphosate and imazethapyr. The CMT population was not controlled with labeled herbicide doses. Based on biomass reduction, the resistance factor was 16.4 and 9.4 to glyphosate and imazethapyr, respectively. The CMT absorbed 66% of 14C-glyphosate and 23% of 14C-imazethapyr at 72 HAT. Although the CMT population absorbed more glyphosate than the susceptible population (12.6%), translocation was impaired for both herbicides in the CMT when compared to the SUS population. There was no evidence that herbicide metabolization was involved in CMT resistance to the herbicides studied. Understanding the mechanisms endowing resistance allows better decision-making. This is the first study that describes non-target-site resistance mechanisms in an Amaranthus hybridus population from Brazil. Full article
(This article belongs to the Special Issue Recent Insights in Herbicide Biochemistry, Herbicide Resistance and Weed Management)
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14 pages, 2658 KiB  
Article
First Report of Resistance to Glyphosate in Several Species of the Genus Echinochloa in Argentina
by Eduardo Cortés, Ana Schneider, Elisa Panigo, Mariel Perreta, Rafael De Prado and Ignacio Dellaferrera
Agronomy 2023, 13(5), 1219; https://doi.org/10.3390/agronomy13051219 - 26 Apr 2023
Cited by 2 | Viewed by 1372
Abstract
The genus Echinochloa consists of about 33 species worldwide; some of these are weeds that are very difficult to control in Argentina, and only E. colona was reported as resistant to glyphosate. The objective of this work is to determine if one or [...] Read more.
The genus Echinochloa consists of about 33 species worldwide; some of these are weeds that are very difficult to control in Argentina, and only E. colona was reported as resistant to glyphosate. The objective of this work is to determine if one or more populations of E. colona, E. crus-galli, E. oryzoides, and E. chacoensis are resistant to or less susceptible to glyphosate. Between 2015 and 2017, seeds of different Echinochloa populations were collected from the provinces of Córdoba, Santa Fe, Buenos Aires, and Entre Ríos, all from fields with a history of at least 10 consecutive years of glyphosate application and complaints from farmers due to failures in control. With these populations, survival, dose–response, and shikimic acid quantification tests were carried out to determine their level of susceptibility to glyphosate. The results obtained allow us to report the first worldwide case of resistance to glyphosate in populations of E. crus-galli, E. oryzoides, and E. chacoensis and expand the information on E. colona. Full article
(This article belongs to the Special Issue Recent Insights in Herbicide Biochemistry, Herbicide Resistance and Weed Management)
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12 pages, 2840 KiB  
Article
Different Non-Target Site Mechanisms Endow Different Glyphosate Susceptibility in Avena Species from Spain
by José G. Vázquez-García, Joel Torra, Candelario Palma-Bautista, Fernando Bastida, Ricardo Alcántara-de la Cruz, João Portugal, Jesús V. Jorrin-Novo and Rafael De Prado
Agronomy 2023, 13(3), 763; https://doi.org/10.3390/agronomy13030763 - 6 Mar 2023
Cited by 2 | Viewed by 1391
Abstract
In 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 [...] Read more.
In 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 by a biometric study. Dose-response trials confirmed that one A. fatua accession evolved to resistance, because it was four times more resistant (R) than the others, ascribed as susceptible (S). In addition, based on LD50, A. byzantina and A. sterilis had low susceptibility to glyphosate, with 604 and 458 g ae ha−1. Shikimic acid accumulation was able to discriminate between high susceptible (A. fatua (S)), low susceptible (A. byzantina and A. sterilis), and low resistant (A. fatua (R)) populations. On the other hand, the study revealed that A. fatua (R), A. byzantina and A. sterilis had low foliar uptake and decreased movement of glyphosate. In addition, the metabolism study showed less metabolite accumulation in A. byzantina and A. fatua (S). However, at 96 h after glyphosate application, A. fatua (R) and A. sterilis were able to convert more than 30% of glyphosate to aminomethylphosphonic acid (AMPA) and sarcosine. Enzyme basal activity and I50 values predicted high affinity between the herbicide and the target enzyme for all accessions, thus indicating that a target-site (TS) mechanism is probably not involved in the differences in glyphosate susceptibility. In closing, non-target site (NTS) mechanisms could participate both in A. fatua R to glyphosate, and low susceptibility in A. byzantina and A. sterilis from Spain. Full article
(This article belongs to the Special Issue Recent Insights in Herbicide Biochemistry, Herbicide Resistance and Weed Management)
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