Impact of the Herbicide Oxyfluorfen on the Activities of Some Enzymes Found in Soil and on the Populations of Soil Microorganisms

Filimon, Marioara Nicoleta; Roman, Diana Larisa; Bordean, D. M.; Isvoran, Adriana

doi:10.3390/agronomy11091702

Cited by 17 publications

(6 citation statements)

References 66 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results of our study and previous studies [15,25,26,31,32] indicate that herbicides were responsible for some distortion of dehydrogenase activity in soil. The analysed data revealed that clopyralid and imazamox applied in recommended doses led to a significant reduction in dehydrogenase activity at day 7 and 14 after application.…”

Section: Discussionsupporting

confidence: 80%

“…In addition, no statistically significant differences were found between the investigated doses of herbicides. The impact of herbicides on dehydrogenase activity has been widely investigated with researchers mostly reporting a temporary inhibitory effect [26,32,33]. Kaur et al [34] proved that after application of imidazoline (imazamox and imazethapyr), dehydrogenase activity in soil decreased and that after a certain time, dehydrogenase activity increased.…”

Section: Discussionmentioning

confidence: 99%

“…The question that arose was how these herbicides affect microbial communities, especially enzyme activity, when they reach the soil. Numerous studies have examined the effects of various herbicides on soil enzyme dehydrogenase [15,[21][22][23][24][25][26]. However, there is almost no data on the impact of clopyralid and imazamox on soil enzymatic activity, especially for forest soil.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of Herbicide Clopyralid and Imazamox on Dehydrogenase Enzyme in Soil of Regenerated Pedunculate Oak Forests

Vasić

Hajnal-Jafari

Djurić

et al. 2022

Forests

View full text Add to dashboard Cite

Clopyralid and imazamox are successfully used for weed control during the first years of regeneration of pedunculate oak forests. Hence, the question that arises is how these herbicides affect microorganisms, especially the activity of dehydrogenase enzyme, when they reach the soil. Two study sites were selected in regenerated pedunculate oak forests, and the two herbicides were applied in two doses that are used for weed control (clopyralid, 100 g a.i. ha−1 and 120 g a.i. ha−1; imazamox, 40 g a.i. ha−1 and 48 g a.i. ha−1). The effect of the herbicides was evaluated 7, 14, 21, 30, and 60 days after application. A significant reduction in dehydrogenase activity was found on days 7 and 14 at both sites. However, after 14 days there was a recovery of dehydrogenase activity for all treatments such that the values obtained on day 21 did not differ from the control values. The effect of clopyralid and imazamox on dehydrogenase activity was not dose-dependent. Dehydrogenase activity also depended on soil properties, soil sampling time and climatic conditions during the investigation years. The results show that clopyralid and imazamox can reduce soil dehydrogenase activity, but this effect is transient. This can be attributed to the ability of microorganisms to overcome the stress caused by the herbicide by developing the capability to utilize herbicides as a nutrient source and proliferating in such an environment.

show abstract

Section: Discussionsupporting

confidence: 80%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Herbicide Clopyralid and Imazamox on Dehydrogenase Enzyme in Soil of Regenerated Pedunculate Oak Forests

Vasić

Hajnal-Jafari

Djurić

et al. 2022

Forests

View full text Add to dashboard Cite

show abstract

“…PA was estimated on the basis of the reaction of ninhydrin with the amino acids that resulted from the hydrolysis of the gelatin used as a substrate, which was the method proposed by Drăgan-Bularda [48]. These methods have previously been applied in order to evaluate the effects on the activity of these enzymes of the herbicides aclonifen [49], S-metolachlor [50] and oxyfluorfen [51], and on the triazole fungicides triticonazole [9] and difenoconazole [52]. The soil treated with myclobutanil at different doses and the control soil were incubated for a period of 28 days under laboratory conditions, and the activity of each enzyme was determined every 7 days.…”

Section: Enzymatic Activity Analysesmentioning

confidence: 99%

The Effects of the Fungicide Myclobutanil on Soil Enzyme Activity

Roman,

Matica,

Ciorsac

et al. 2023

Agriculture

Self Cite

View full text Add to dashboard Cite

(1) Background: The use of pesticides, although needed to protect crops and increase production, represents an environmental and human health issue. Therefore, measures must be taken in order to develop a better understanding of the risks involved in the overuse of these compounds. Myclobutanil is a chiral triazole fungicide widely used for the protection of crops against fungal diseases. Published data have shown that, although effective in preventing fungal infections, high doses of myclobutanil can affect the soil environment. The aim of this study was to evaluate the effect of different doses of myclobutanil on soil enzyme activity, as well as the possible specificity of the interactions of the two stereoisomers of myclobutanil with these enzymes. (2) Methods: A combination of experimental and computational approaches was considered. An experimental method was applied in order to assess the effect of different doses of myclobutanil on the activity of dehydrogenase, phosphatase, catalase, urease and protease. The computational approach was based on the molecular docking of the two enantiomers of myclobutanil with the above-mentioned enzymes to assess the possible enantioselectivity of the interactions. (3) Results: High doses of myclobutanil significantly affected the enzymatic activity of dehydrogenase and led to a slight increase in the activity of catalase. Molecular docking data showed that both enantiomers of myclobutanil were able to bind to the active sites of dehydrogenase, phsosphatase and protease, with higher interacting energies observed for (S)-myclobutanil, the enantiomer known to be less active against target organisms but have a higher toxicity against non-target organisms. (4) Conclusions: The results of our study confirm the need to implement better management practices regarding the use of myclobutanil (and of pesticides in general) by using the enantiomer that is most effective on target organisms and less toxic to non-target organisms.

show abstract

“…During this process, the bacteria form a biofilm around that may help to protect them against biotic and abiotic stress and favour nutrient uptake (Rossi, 2020). In light of the above, it can be concluded that a decrease or disappearance of this bacterial function from soils due to oxyfluorfen contamination is likely to result in a marked loss of soil quality, thus preventing it from being used for agricultural purposes (Filimon et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Study of the Biochemical Activity and Plant Growth Promoting Bacteria in Soils Polluted with Oxyfluorfen

et al. 2022

View full text Add to dashboard Cite

Impact of the Herbicide Oxyfluorfen on the Activities of Some Enzymes Found in Soil and on the Populations of Soil Microorganisms

Cited by 17 publications

References 66 publications

Effect of Herbicide Clopyralid and Imazamox on Dehydrogenase Enzyme in Soil of Regenerated Pedunculate Oak Forests

Effect of Herbicide Clopyralid and Imazamox on Dehydrogenase Enzyme in Soil of Regenerated Pedunculate Oak Forests

The Effects of the Fungicide Myclobutanil on Soil Enzyme Activity

Study of the Biochemical Activity and Plant Growth Promoting Bacteria in Soils Polluted with Oxyfluorfen

Contact Info

Product

Resources

About