Phytotoxicity of the chiral herbicide dichlorprop: Cross-talk between nitric oxide, reactive oxygen species and phytohormones

Chen, Hui; Qin, Yongxiang; Pu, Jiawei; Hu, Jinxing; Wen, Yuezhong

doi:10.1016/j.scitotenv.2021.147866

Cited by 11 publications

(11 citation statements)

References 49 publications

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“…Dichlorprop treatment was found to enhance JA levels in A. thaliana leaves and roots while decreasing SA levels in roots. No substantial change in ABA levels in A. thaliana (leaves and roots) was however reported, and this could have been due to the coregulation of several hormones in plants . These findings were consistent with the inhibition trend observed in the current study.…”

Section: Discussionsupporting

confidence: 92%

“…No substantial change in ABA levels in A. thaliana (leaves and roots) was however reported, and this could have been due to the coregulation of several hormones in plants. 33 These findings were consistent with the inhibition trend observed in the current study. Furthermore, carbamazepine and ibuprofen applications were found to reduce the JA content while increasing the ABA content in Malabar spinach root.…”

Section: ■ Discussionmentioning

confidence: 95%

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Bensulfuron-Methyl, Terbutylazine, and 2,4-D Butylate Disturb Plant Growth and Resistance by Deteriorating Rhizosphere Environment and Plant Secondary Metabolism in Wheat Seedlings

Zhou

Cheng

et al. 2022

J. Agric. Food Chem.

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Frequent and improper use of herbicides disrupts a plant's metabolism, causing oxidative stress that degrades crop quality. However, few studies have examined the inhibitory effects of herbicides on plant growth and defense mechanisms in terms of their impact on soil quality and crop rhizosphere. Therefore, the current study investigated the detrimental impacts of six typical and multilevel herbicides on the microbial community and signal molecules in the soil as well as on the levels of hormones and secondary metabolites in wheat seedlings. Interestingly, bensulfuron-methyl, terbutylazine (TBA), and 2,4-D butylate significantly induced oxidative damage while reducing the number of phytohormones (salicylic acid and jasmonic acid) and secondary metabolites (tricin, quercetin, and caffeic acid) in the roots and leaves compared with the controls, isoproturon, fenoxaprop-p-ethyl, and pretilachlor. At twice the recommended levels (2×), they also decreased the microbial α diversity and, in particular, the abundance of Gammaproteobacteria, Alphaproteobacteria, Actinobacteria, Bacteroidia, Verrucomicrobia, Bacilli, Acidimicrobiia, Deltaproteobacteria, and Gemmatimonadetes by disrupting the level of enzymes (e.g., urease and sucrase) and metabolites (indole-3-acetic acid, salicylic acid, apigenin, 4-hydroxybenzoic acid, DIMBOA, and melatonin) in the rhizosphere soil. Overall, significant exposure to herbicides may inhibit wheat growth by disturbing the microbial composition in the rhizosphere soil and the distribution of secondary metabolites in wheat seedlings.

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Section: Discussionsupporting

confidence: 92%

Section: ■ Discussionmentioning

confidence: 95%

Bensulfuron-Methyl, Terbutylazine, and 2,4-D Butylate Disturb Plant Growth and Resistance by Deteriorating Rhizosphere Environment and Plant Secondary Metabolism in Wheat Seedlings

Zhou

Cheng

et al. 2022

J. Agric. Food Chem.

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“…Signaling cross-talk occurs when auxins (IAA), salicylic acid (SA), jasmonic acid (JA), and abscisic acid (ABA) react to external stress in beneficial and opposing ways. 32 In previous research, Pen exposure lowered tomato fruit IAA, gibberellins, and JA levels, inhibiting maturation and ripening. Se NPs may reduce Pen stress and restore tomato plant hormones at the advanced green stage.…”

Section: ■ Discussionmentioning

confidence: 83%

“…Phytohormones, tiny endogenous molecules, influence plant growth and development including germination, leaf expansion, lateral root formation, stomatal closure, and biotic and abiotic stress resistance. Signaling cross-talk occurs when auxins (IAA), salicylic acid (SA), jasmonic acid (JA), and abscisic acid (ABA) react to external stress in beneficial and opposing ways . In previous research, Pen exposure lowered tomato fruit IAA, gibberellins, and JA levels, inhibiting maturation and ripening.…”

Section: Discussionmentioning

confidence: 99%

Novel Finding on How Melatonin and Nanoselenium Alleviate 2,4-D Butylate Stress in Wheat Plants

Zhou,

Zhang,

Miao

et al. 2023

J. Agric. Food Chem.

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Nanoselenium (nano-Se) or melatonin (MT) foliar spray reduces pesticide stress by stimulating plant secondary metabolism and antioxidant capacity. However, the effects of nano-Se and MT biofortification on the interaction between plant secondary metabolic pathways and rhizosphere microbes in mitigating 2,4-D butyrate stress remain unknown. Compared to nano-Se or MT treatment alone, nano-Se and MT combined application increased the antioxidant enzyme activities and decreased the MDA (25.0%) and H 2 O 2 (39.3%) contents with 2,4-D butylate exposure. Importantly, they enhance the soil enzymes (S-FDA by 53.1%), allelochemicals (luteolin by 164.1% and tricin by 147.3%), as well as plant secondary metabolites (JA by 63.3% and 193.3% in leaves and roots) levels. It also improved the beneficial microbial abundance of Comamonadaceae, Sphingomonadaceae, and Rhodobacteraceae in the rhizosphere soil. In conclusion, nano-Se and MT alleviate 2,4-D butylate stress in wheat plants by enabling the interaction between rhizosphere microorganisms, allelopathic substances, and secondary metabolites.

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“…Additionally, dichlorprop (DCPP) herbicide caused production of ROS in root and leaves tissues of Arbidopsis thaliana which as clearly evidenced under confocal laser scanning microscopy. 69 …”

Section: Resultsmentioning

confidence: 99%

Physiological and oxidative stress responses ofSolanum lycopersicum(L.) (tomato) when exposed to different chemical pesticides

et al. 2022

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Phytotoxicity of the chiral herbicide dichlorprop: Cross-talk between nitric oxide, reactive oxygen species and phytohormones

Cited by 11 publications

References 49 publications

Bensulfuron-Methyl, Terbutylazine, and 2,4-D Butylate Disturb Plant Growth and Resistance by Deteriorating Rhizosphere Environment and Plant Secondary Metabolism in Wheat Seedlings

Bensulfuron-Methyl, Terbutylazine, and 2,4-D Butylate Disturb Plant Growth and Resistance by Deteriorating Rhizosphere Environment and Plant Secondary Metabolism in Wheat Seedlings

Novel Finding on How Melatonin and Nanoselenium Alleviate 2,4-D Butylate Stress in Wheat Plants

Physiological and oxidative stress responses ofSolanum lycopersicum(L.) (tomato) when exposed to different chemical pesticides

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