Salicylic acid enhances tolerance of Valeriana officinalis L. to bentazon herbicide

Khatooni, Mahsa; Karimmojeni, Hassan; Zali, Ali Gholami; Razmjoo, Jamshid; Tseng, Te‐Ming

doi:10.1016/j.indcrop.2021.114495

Cited by 11 publications

(6 citation statements)

References 28 publications

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“…In addition, plants can respond to toxic damage by regulating hormone levels to affect key enzyme activities in plants. Studies have shown that topical application of salicylic acid to valerian can reduce the toxic effects of bentazon herbicides by enhancing oxidative defense mechanisms and altering POD, CAT and APX enzyme activities ( Khatooni et al., 2022 ).…”

Section: Discussionmentioning

confidence: 99%

Study on phytotoxicity evaluation and physiological properties of nicosulfuron on sugar beet (Beta vulgaris L.)

et al. 2022

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Nicosulfuron is an herbicide widely used in corn fields. In northeast China, sugar beet is often planted adjacent to corn, resulting in frequent phytotoxicity of nicosulfuron drift in sugar beet fields. This study was conducted by spraying nicosulfuron to assess the phytotoxicity and clarify the mechanism of nicosulfuron toxicity on sugar beet. The results showed that nicosulfuron impaired growth and development by reducing photosynthetic capacity and disrupting antioxidant systems at a lethal dose of 81.83 g a.i. ha–1. Nicosulfuron damaged the function of photosynthetic system II (PSII), lowered photosynthetic pigment content, and inhibited photosynthetic efficiency. Compared with the control, the electron transfer of PSII was blocked. The ability of PSII reaction centers to capture and utilize light energy was reduced, resulting in a weakened photosynthetic capacity. The maximum net photosynthetic rate (Amax), light saturation point (LSP), and apparent quantum yield (AQY) decreased gradually as the nicosulfuron dose increased, whereas the light compensation point (LCP) and dark respiration (Rd) increased. Nicosulfuron led to reactive oxygen species (ROS) accumulation in sugar beet leaf, a significant rise in malondialdehyde (MDA) content, electrolytic leakage (EL), and considerable oxidative damage to the antioxidant system. This study is beneficial for elucidating the effects of nicosulfuron toxicity on sugar beet, in terms of phytotoxicity, photosynthetic physiology, and antioxidative defense system.

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Section: Discussionmentioning

confidence: 99%

Study on phytotoxicity evaluation and physiological properties of nicosulfuron on sugar beet (Beta vulgaris L.)

et al. 2022

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“…As mentioned previously, multiple enzymes and other molecules are known to have some involvement in NTS metabolic resistance; however, their co‐induction and regulation still require elucidation. Additionally, phytohormones related to plant stress, including salicylic acid and jasmonic acid, need to be further examined regarding their involvement in metabolic resistance and how they can affect the co‐regulation and co‐expression of key NTS genes 21–24 . Further molecular structural characterization and herbicide/enzyme affinity estimations also are needed to identify metabolic potentials to avoid cross resistance to novel herbicides.…”

Section: Mechanisms Of Herbicide Cross Resistancementioning

confidence: 99%

Predicting the unpredictable: the regulatory nature and promiscuity of herbicide cross resistance

Bobadilla,

Tranel

2023

Pest Management Science

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The emergence of herbicide‐resistant weeds is a significant threat to modern agriculture. Cross resistance, a phenomenon where resistance to one herbicide confers resistance to another, is a particular concern due to its unpredictability. Nontarget‐site (NTS) cross resistance is especially challenging to predict, as it arises from genes that encode enzymes that do not directly involve the herbicide target site and can affect multiple herbicides. Recent advancements in genomic and structural biology techniques could provide new venues for predicting NTS resistance in weed species. In this review, we present an overview of the latest approaches that could be used. We discuss the use of genomic and epigenomics techniques such as ATAC‐seq and DAP‐seq to identify transcription factors and cis‐regulatory elements associated with resistance traits. Enzyme/protein structure prediction and docking analysis are discussed as an initial step for predicting herbicide binding affinities with key enzymes to identify candidates for subsequent in vitro validation. We also provide example analyses that can be deployed toward elucidating cross resistance and its regulatory patterns. Ultimately, our review provides important insights into the latest scientific advancements and potential directions for predicting and managing herbicide cross resistance in weeds.This article is protected by copyright. All rights reserved.

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“…Bentazone (3,4-dihydro-3-isopropyl-1H-2,1,3-benzothiadiazin-4-one 2,2-dioxide, BNTZ) is a globally used selective herbicide for controlling broadleaf and multi-perennial weeds in the fields of rice, corn, wheat, soybean, alfalfa, or vegetables. , BNTZ is a member of the benzothiadiazole family. The major role of BNTZ in herbicidal plants is to prevent photosynthetic activity by blocking photosynthetic electron flow in chloroplasts.…”

Section: Introductionmentioning

confidence: 99%

“…The major role of BNTZ in herbicidal plants is to prevent photosynthetic activity by blocking photosynthetic electron flow in chloroplasts. Detailed mechanisms include the competition with quinone B (QB) for the binding site in the photosystem II (PSII) reaction center, making plastoquinone A (QA) unable to re-oxidize . With excessive usage, the BNTZ residue becomes a contaminant threatening environmental safety and human health .…”

Section: Introductionmentioning

confidence: 99%

“…Detailed mechanisms include the competition with quinone B (QB) for the binding site in the photosystem II (PSII) reaction center, making plastoquinone A (QA) unable to re-oxidize. 2 With excessive usage, the BNTZ residue becomes a contaminant threatening environmental safety and human health. 3 The high solubility of BNTZ makes it migrate fast in runoff, and the leaching concentration of BNTZ in groundwater in some countries is as high as 120 μg/L, exceeding the limit of 0.1 mg/L specified by the European Union.…”

Section: ■ Introductionmentioning

confidence: 99%

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Multiple Metabolism Pathways of Bentazone Potentially Regulated by Metabolic Enzymes in Rice

Qiao

Chen

et al. 2023

J. Agric. Food Chem.

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Bentazone (BNTZ) is a selective and efficient herbicide used in crop production worldwide. However, the persistence of BNTZ residues in the environment has led to their increasing accumulation in farmland and crops, posing a high risk to human health. To evaluate its impact on crop growth and environmental safety, a comprehensive study was conducted on BNTZ toxicity, metabolic mechanism, and resultant pathways in rice. The rice growth was compromised to the treatment with BNTZ at 0.2–0.8 mg/L (529.95–1060.05 g a.i./ha), while the activities of enzymes including SOD, POD, CAT, GST, GT, and CYP450 were elevated under BNTZ stress. A genome-wide RNA-sequencing (RNA-Seq) was performed to dissect the variation of transcriptomes and metabolic mechanisms in rice exposed to BNTZ. The degradative pathways of BNTZ in rice are involved in glycosylation, hydrolysis, acetylation, and conjugation processes catalyzed by the enzymes. Our data provided evidence that helps understand the BNTZ metabolic and detoxic mechanisms.

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Salicylic acid enhances tolerance of Valeriana officinalis L. to bentazon herbicide

Cited by 11 publications

References 28 publications

Study on phytotoxicity evaluation and physiological properties of nicosulfuron on sugar beet (Beta vulgaris L.)

Study on phytotoxicity evaluation and physiological properties of nicosulfuron on sugar beet (Beta vulgaris L.)

Predicting the unpredictable: the regulatory nature and promiscuity of herbicide cross resistance

Multiple Metabolism Pathways of Bentazone Potentially Regulated by Metabolic Enzymes in Rice

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