Effects of mancozeb on citrus rhizosphere bacterial community

Huang, Zhongdong; Wang, Peng; Lu, Lianming; Chen, Guoqing; Hu, Xiao; Fayyaz, Amna; Gai, Yunpeng

doi:10.1016/j.micpath.2021.104845

Cited by 18 publications

(12 citation statements)

References 35 publications

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“…Malandrakis et al [ 46 ] observed that Fusarium solani FsK—an isolate used as BCA—was highly insensitive to Thiophanate-methyl and Mancozeb, with an effective concentration as fungicide exceeding 100 mg/mL in in vitro conditions. In another study, some Trichoderma strains decreased the conidia production in presence of Mancozeb [ 47 ], but in the presence of this compound in the rhizosphere, the soil bacterial communities increased [ 48 ]. In the current research, these compounds reduced the growth in all strains.…”

Section: Discussionmentioning

confidence: 99%

Organic and Conventional Bean Pesticides in Development of Autochthonous Trichoderma Strains

Mayo-Prieto

Squarzoni

Carro-Huerga

et al. 2022

JoF

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Pesticides of chemical synthesis have mainly been used to control pests, diseases and adventitious plants up until now. However, it has been shown that some pesticides can remain in the soil for long periods of time, thus affecting the development of organisms in the rhizosphere as well as human health, which are two of the most noteworthy side effects. The aim of this research was to analyze the compatibility of autochthonous Trichoderma strains with different synthetic fungicides, acaricides, insecticides (including an entomopathogenic fungus) and herbicides. Sulfur encouraged the growth of all autochthonous strains assayed, and the combination Trichoderma-B. bassiana did not disturb their growth. So, the combination of the autochthonous Trichoderma strains with these organic pesticides will be a positive strategy to apply in the field to control pests and some diseases. Conventional pesticides modified the development of all autochthonous Trichoderma strains, demonstrating that not only do they affect weeds, fungus or pests but also rhizosphere microorganisms. In conclusion, conventional pesticides indiscriminately used to control pests, diseases and weeds could reduce the development of autochthonous Trichoderma strains, especially fungicides and herbicides.

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Section: Discussionmentioning

confidence: 99%

Organic and Conventional Bean Pesticides in Development of Autochthonous Trichoderma Strains

Mayo-Prieto

Squarzoni

Carro-Huerga

et al. 2022

JoF

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“…Furthermore, mancozeb affects soil microbial processes such as ammoni cation, nitri cation, phosphorus solubilization along with the production of soil microbial and enzymes such as amylase, invertase, and phosphatase (Walia et al, 2014). While frequent application of mancozeb has caused less adverse effects on rhizosphere soil under citrus cultivation, it decreased the abundance of Nitrospirae (Huang et al, 2021c).…”

Section: Introductionmentioning

confidence: 99%

Response of microbial communities on tobacco leaf phyllosphere exposed to the broad-spectrum fungicide mancozeb

Dai

Wang³

et al. 2023

Preprint

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Mancozeb is a broad-spectrum fungicide frequently applied as foliar spray in tobacco fields to control fungal diseases. The response of tobacco phyllosphere microbiota toward mancozeb stress was assessed using high-throughput sequencing at four time points: before spraying, and 5, 10 and 15 days after fungicide application. Results showed that the foliar application of mancozeb had moderate but significant effect on fungal community composition of tobacco phyllosphere. In all samples, Ascomycota and Proteobacteria were the most abundant phyla, and Alternaria was the dominant fungal genus. Moreover, mancozeb significantly affected indigenous bacterial communities of tobacco leaves; Pseudomonas was predominant in untreated and before mancozeb treatment groups. An increase in abundance of Ascomycota was observed in diseased samples while healthy samples showed a reduction after mancozeb application. Increased abundance of Proteobacteria was observed in treated samples, which was much higher in diseased than in healthy groups. Increased abundance of Alternaria was observed until 15 days after mancozeb application, while successive reduction in abundance of the genus was observed in the untreated healthy group. Fungal alpha diversity indices in untreated groups increased from the first collection stage to the third, whereas a decrease in four fungal indices was observed at 5 d after mancozeb exposure. A significant difference between treated and untreated groups was observed in terms of fungal richness indices of similar samples from the previous stage. Bacterial diversity indices increased after mancozeb application while they decreased in untreated samples. Mancozeb was effective in altering the fungal community structure rather than bacterial community structure. After mancozeb treatment, the proportion of pathotroph-saprotroph-symbiotroph increased while it decreased in the untreated groups. The overall findings revealed ecological implications of the effects of mancozeb on tobacco phyllosphere microbiome; our results would provide a theoretical basis for future studies on microecological protection of phyllosphere.

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“…The Commission Implementing Regulation (EU) 2020/2087 restricted the use of crop protection products based on MZ in the EU since 4 January 2022 [7]. However, worldwide, the amount used in the agriculture has increased significantly in recent years [8,9]. Dithiocarbamates are strong chelating agents and can directly interact with signaling proteins and enzymes.…”

Section: Introductionmentioning

confidence: 99%

Accumulation of Astaxanthin and Canthaxanthin in Liver and Gonads of Rainbow Trout (Oncorhynchus mykiss (Walbaum, 1792)) Reared in Water Containing the Fungicide Mancozeb in Concentration Level Permitted by European Legislation

et al. 2022

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In this study, we studied the levels of both of the main pigments in Salmonidae—astaxanthin (Ax) and canthaxanthin (Cx)—accumulated in the liver, female gonads, and male gonads of rainbow trout (Oncorhynchus mykiss) reared in water containing the fungicide mancozeb (MZ) in concentration levels permitted by European legislation. Experimental fish were divided into three groups: the first was a control group, the second was fed with market feed (containing Ax and Cx), and the third was fed with market feed (containing Ax and Cx) and reared in environmental water containing permissible MZ levels. The diet preparation followed the manufacturer’s recommendations. The accumulated pigment quantities were measured using an HPLC-PDA method after selective extraction: Ax ranged from 2.490 ± 0.247 mg/kg (female gonads, second group) to 0.176 ± 0.007 mg/kg (liver, control group), and Cx—from 2.406 ± 0.166 mg/kg (female gonads, second group) to 0.103 ± 0.010 mg/kg (liver, control group). The pattern of the accumulation of both pigments in the three organs in the specimens of the three groups was sustainable: the amount of Ax was always greater than that of Cx, and the correlation between their concentrations was very high. The pigments were accumulated most intensively in the female gonads, followed by the male gonads and the liver. This trend was confirmed for all three experimental groups. However, the differences in the last third group were very small, and the levels of the xanthophylls accumulated were the lowest. A particular cause of the latter findings was the ongoing detoxification reactions and the disposal of MZ, in which Ax and Cx were involved as antioxidants.

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Effects of mancozeb on citrus rhizosphere bacterial community

Cited by 18 publications

References 35 publications

Organic and Conventional Bean Pesticides in Development of Autochthonous Trichoderma Strains

Organic and Conventional Bean Pesticides in Development of Autochthonous Trichoderma Strains

Response of microbial communities on tobacco leaf phyllosphere exposed to the broad-spectrum fungicide mancozeb

Accumulation of Astaxanthin and Canthaxanthin in Liver and Gonads of Rainbow Trout (Oncorhynchus mykiss (Walbaum, 1792)) Reared in Water Containing the Fungicide Mancozeb in Concentration Level Permitted by European Legislation

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