Plant Pigments Content as a Marker for Herbicide Abiotic Stress in Corn (Zea mays L.)

Yancheva, S.; Georgieva, Lidiya; Kostova, M.; Pervin, Halkoglu; Dimitrova, M.; Naimov, Samir

doi:10.9755/ejfa.2016-02-135

Cited by 3 publications

(2 citation statements)

References 14 publications

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“…These effects suggested that these compounds could limit photosynthesis causing subsequent plant growth inhibition. Interestingly , pigments have often been used as biomarkers for new molecules with herbicidal activity in crops and model plants . Fai et al .…”

Section: Discussionmentioning

confidence: 99%

“…Interestingly, pigments have often been used as biomarkers for new molecules with herbicidal activity in crops and model plants. 36,37 Fai et al demonstrated that some herbicides caused chlorophyll inhibition blocking its synthesis. 38 However, this may not be the only cause because pigment content reduction could be determined by a chemically-induced degradation or an oxidative stress induced by benzofuran derivatives.…”

Section: Discussionmentioning

confidence: 99%

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Benzofuran‐2‐acetic esters as a new class of natural‐like herbicides

Araniti

Mancuso

Lupini

et al. 2019

Pest Management Science

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BACKGROUND In recent decades, the use of synthetic herbicides has been increasing, mainly in emerging countries. However, their intensive and indiscriminate application is a major cause of environmental pollution and human health injury. Therefore, there is an increasing need to develop new herbicides with safer toxicological and environmental profiles. A promising strategy is to synthesize new molecules containing the core of natural products as a template for the production of ‘bio‐inspired’ or ‘natural‐like’ herbicides. RESULTS The potential herbicidal activity of some benzofuran‐2‐acetic esters was assessed in vitro on Arabidopsis thaliana, a model species. All five molecules (M1‐M5) showed significant phytotoxic activity, reducing both shoot and root system at low concentrations. In particular, methyl 2‐(5‐methoxybenzofuran‐2‐yl)hexanoate (M3) exhibited the highest phytotoxicity displayed against two crops and weeds, monocots (Zea mays L. and E. crus‐galli) and dicots (Lactuca sativa L. and Amaranthus retroflexus L.). The M3 activity was also compared with glyphosate, a common herbicide, showing a lower but similar activity. Moreover, the results evidenced that M3 was more effective in post‐emergency. CONCLUSION Readily synthesizable benzofuran‐2‐acetic esters possessing the benzofuran ring as ‘bio‐inspired’ core, show significant herbicidal activity making them very efficient even at low concentrations. They can be sprayed in liquid form, and the addition of adjuvants can improve penetration through the leaf cuticle. These results confirm the importance of these molecules as models for the development of new natural‐like herbicides. © 2019 Society of Chemical Industry

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Benzofuran‐2‐acetic esters as a new class of natural‐like herbicides

Araniti

Mancuso

Lupini

et al. 2019

Pest Management Science

View full text Add to dashboard Cite

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Exploration and genetic analyses of canopy leaf pigmentation changes in soybean (Glycine max L.): unveiling a novel phenotype

You,

Jo,

Kim

et al. 2024

Theor Appl Genet

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Key message Pigmentation changes in canopy leaves were first reported, and subsequent genetic analyses identified a major QTL associated with levels of pigmentation changes, suggesting Glyma.06G202300 as a candidate gene. Abstract An unexpected reddish-purple pigmentation in upper canopy leaves was discovered during the late reproductive stages in soybean (Glycine max L.) genotypes. Two sensitive genotypes, ‘Uram’ and PI 96983, exhibited anomalous canopy leaf pigmentation changes (CLPC), while ‘Daepung’ did not. The objectives of this study were to: (i) characterize the physiological features of pigmented canopy leaves compared with non-pigmented leaves, (ii) evaluate phenotypic variation in a combined recombinant inbred line (RIL) population (N = 169 RILs) under field conditions, and (iii) genetically identify quantitative trait loci (QTL) for CLPC via joint population linkage analysis. Comparison between pigmented and normal leaves revealed different Fv/Fm of photosystem II, hyperspectral reflectance, and cellular properties, suggesting the pigmentation changes occur in response to an undefined abiotic stress. A highly significant QTL was identified on chromosome 6, explaining ~ 62.8% of phenotypic variance. Based on the QTL result, Glyma.06G202300 encoding flavonoid 3′-hydroxylase (F3′H) was identified as a candidate gene. In both Uram and PI 96983, a 1-bp deletion was confirmed in the third exon of Glyma.06G202300 that results in a premature stop codon in both Uram and PI 96983 and a truncated F3′H protein lacking important domains. Additionally, gene expression analyses uncovered significant differences between pigmented and non-pigmented leaves. This is the first report of a novel symptom and an associated major QTL. These results will provide soybean geneticists and breeders with valuable knowledge regarding physiological changes that may affect soybean production. Further studies are required to elucidate the causal environmental stress and the underlying molecular mechanisms.

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Advances in Understanding the Toxicity of 4-Hydroxyphenylpyruvate Dioxygenase-Inhibiting Herbicides

Ndikuryayo,

Gong,

Yang

2024

J. Agric. Food Chem.

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4-Hydroxyphenylpyruvate dioxygenase inhibiting herbicides (HIHs) represent a recent class (HRAC group 27) of herbicides that offer many advantages, such as broad-spectrum activity, crop selectivity, and low resistance rates. However, emerging studies have highlighted the potential toxicity of HIHs in the environment. This review aims to provide a comprehensive summary of the toxicity of HIHs toward nontarget organisms, including plants, microorganisms, animals, and humans. Furthermore, the present work discusses the ecological roles of these organisms in the environment and their significance in agriculture. By shedding light on the toxicity of HIHs, this study seeks to raise awareness among end users, including environmentalists, researchers, and farmers, regarding the potential ecological implications of these herbicides. Hopefully, this knowledge can contribute to informed decisionmaking and sustainable practices in green agriculture and environmental management.

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Plant Pigments Content as a Marker for Herbicide Abiotic Stress in Corn (Zea mays L.)

Cited by 3 publications

References 14 publications

Benzofuran‐2‐acetic esters as a new class of natural‐like herbicides

Benzofuran‐2‐acetic esters as a new class of natural‐like herbicides

Exploration and genetic analyses of canopy leaf pigmentation changes in soybean (Glycine max L.): unveiling a novel phenotype

Advances in Understanding the Toxicity of 4-Hydroxyphenylpyruvate Dioxygenase-Inhibiting Herbicides

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