The first recorded case of herbicide resistance in Estonia: common chickweed (Stellaria media) resistant to sulfonylureas

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F25%3A102486" target="_blank" >RIV/60460709:41210/25:102486 - isvavai.cz</a>

Výsledek na webu

<a href="https://journal.fi/afs/article/view/147802" target="_blank" >https://journal.fi/afs/article/view/147802</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.23986/afsci.147802" target="_blank" >10.23986/afsci.147802</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The first recorded case of herbicide resistance in Estonia: common chickweed (Stellaria media) resistant to sulfonylureas

Popis výsledku v původním jazyce

Herbicide resistance has been insufficiently studied in the Baltic countries. Chickweed (Stellaria media), an adaptive and competitive annual weed, poses a significant agricultural threat due to its low and dense canopy. This study aimed to evaluate the level of resistance to acetolactate synthase (ALS) inhibitors in chickweed populations in Estonia and identify potential mechanisms. In the initial dose-response experiment, a biotype from Järva County exhibited resistance to the ALS inhibitor tribenuron-methyl. Molecular analysis identified a mutation at position 574 in the ALS gene, where tryptophan was replaced by leucine. Testing of eight chickweed biotypes for resistance to tribenuron-methyl and the combination herbicide iodosulfuron + amidosulfuron found three resistant biotypes. The Järva County biotype was cross-resistant to sulfonylureas, while two others exhibited resistance only to iodosulfuron + amidosulfuron. The latter two biotypes lacked the ALS gene mutation, suggesting non-target-site resistance mechanisms, although these were not investigated further. These findings highlight the potential for widespread herbicide resistance in Estonia and emphasize the need for more comprehensive monitoring and research into resistance mechanisms.

Název v anglickém jazyce

The first recorded case of herbicide resistance in Estonia: common chickweed (Stellaria media) resistant to sulfonylureas

Popis výsledku anglicky

Herbicide resistance has been insufficiently studied in the Baltic countries. Chickweed (Stellaria media), an adaptive and competitive annual weed, poses a significant agricultural threat due to its low and dense canopy. This study aimed to evaluate the level of resistance to acetolactate synthase (ALS) inhibitors in chickweed populations in Estonia and identify potential mechanisms. In the initial dose-response experiment, a biotype from Järva County exhibited resistance to the ALS inhibitor tribenuron-methyl. Molecular analysis identified a mutation at position 574 in the ALS gene, where tryptophan was replaced by leucine. Testing of eight chickweed biotypes for resistance to tribenuron-methyl and the combination herbicide iodosulfuron + amidosulfuron found three resistant biotypes. The Järva County biotype was cross-resistant to sulfonylureas, while two others exhibited resistance only to iodosulfuron + amidosulfuron. The latter two biotypes lacked the ALS gene mutation, suggesting non-target-site resistance mechanisms, although these were not investigated further. These findings highlight the potential for widespread herbicide resistance in Estonia and emphasize the need for more comprehensive monitoring and research into resistance mechanisms.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

AGRICULTURAL AND FOOD SCIENCE

ISSN

1459-6067

e-ISSN

1795-1895

Svazek periodika

34

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

10

Strana od-do

51-60

Kód UT WoS článku

001463264800004

EID výsledku v databázi Scopus

2-s2.0-105002347379