Frontiers in Plant Science | VOL. 12
Read

First Case of Glyphosate Resistance in Bromus catharticus Vahl.: Examination of Endowing Resistance Mechanisms.

Publication Date Jan 1, 2021

Abstract

Bromus catharticus Vahl. has been used as a valuable forage crop, but it has also been noted as a weed of winter crops and an invader in several countries. In Argentina, a putative glyphosate-resistant population of B. catharticus was identified as a consequence of the lack of effective control with glyphosate in the pre-sowing of wheat. Plant survival and shikimate accumulation analysis demonstrated a lower glyphosate-sensitivity of this population in comparison to a susceptible B. catharticus population. The resistant population was 4-fold more resistant to glyphosate than its susceptible counterpart. There was no evidence of target-site mechanisms of glyphosate resistance or an enhanced capacity to metabolise glyphosate in the resistant population. However, the resistant plants showed a lower foliar retention of glyphosate (138.34 µL solution g-1 dry weight versus 390.79 µL solution g-1 dry weight), a reduced absorption of 14C-glyphosate (54.18 % versus 73.56 %) and lower translocation of 14C-glyphosate from the labelled leaf (27.70 % versus 62.36 %). As a result, susceptible plants accumulated a 4.1-fold higher concentration of 14C-glyphosate in the roots compared to resistant plants. The current work describes the first worldwide case of glyphosate resistance in B. catharticus. A reduced foliar retention of herbicide, a differential rate of glyphosate entry into leaves and an altered glyphosate translocation pattern would be the most likely mechanisms of glyphosate exclusion.

Concepts
Powered ByUnsilo

Resistant Population
μL Solution
Susceptible Counterpart
Plant Survival
Resistant Plants
Altered Translocation
Mechanisms Of Exclusion
Dry Weight
Weed Of Crops
Rate Of Entry

Introducing Weekly Round-ups!Beta

Powered by R DiscoveryR Discovery

Round-ups are the summaries of handpicked papers around trending topics published every week. These would enable you to scan through a collection of papers and decide if the paper is relevant to you before actually investing time into reading it.

Coronavirus Research Articles published between Aug 01, 2022 to Aug 07, 2022

R DiscoveryAug 08, 2022
R DiscoveryArticles Included:  5

Introduction: The corona virus disease (COVID)-19 is a severe acute respiratory syndrome (SARS-CoV-2) which is posing a great threat to mankind and ha...

Read More

Climate change Research Articles published between Aug 01, 2022 to Aug 07, 2022

R DiscoveryAug 08, 2022
R DiscoveryArticles Included:  5

We use cookies to improve your website experience. To learn about our use of cookies and how you can manage your cookie settings, please see our Cooki...

Read More

Good health Research Articles published between Aug 01, 2022 to Aug 07, 2022

R DiscoveryAug 08, 2022
R DiscoveryArticles Included:  2

Don’t have an account? Create a Free Account If you don't remember your password, you can reset it by entering your email address and clicking the Res...

Read More

Quality Of Education Research Articles published between Aug 01, 2022 to Aug 07, 2022

R DiscoveryAug 08, 2022
R DiscoveryArticles Included:  2

Introduction: In 2014 the Accreditation Council for Graduate Medical Education modified adult training requirements for child neurology certification ...

Read More

Gender Equality Research Articles published between Aug 01, 2022 to Aug 07, 2022

R DiscoveryAug 08, 2022
R DiscoveryArticles Included:  3

Introduction: Opioid use disorder (OUD) is characterized as a problematic cycle of substance intoxication and binging, followed by associated withdraw...

Read More

Coronavirus Pandemic

You can also read COVID related content on R COVID-19

R ProductsCOVID-19

ONE PROBLEM . ONE PURPOSE . ONE PLACE

Creating the world’s largest AI-driven & human-curated collection of research, news, expert recommendations and educational resources on COVID-19

COVID-19 Dashboard

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on “as is” basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The Copyright Law.