BIS(4-FLUOROPHENYLSULFONYLDITHIOCARBIMATO)ZINCATE(II) SALTS: NEW ANTIFUNGALS FOR THE CONTROL OF<i>Botrytis</i>BLIGHT

Oliveira, A.; Oliveira, Marcelo R. L.; Rubinger, Mayura M. M.; Piló, Elisa D.L.; Menezes, Daniele C.; Zambolim, Laércio

doi:10.5935/0100-4042.20150075

Cited by 3 publications

(3 citation statements)

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“…Their metal complexes and other derivatives have been poorly studied and there are no commercial applications for this class of substances yet. Nevertheless, zinc‐dithiocarbimates inhibit, in vitro , the mycelial growth of phytopathogenic fungi, including Colletotrichum and Botrytis 7–9 . It was recently demonstrated that zinc‐ N ‐R‐sulfonyldithiocarbimates inhibit H. vastatrix in vivo , 10 indicating that dithiocarbimates are potential fungicides for the control of the coffee leaf rust disease and are worth further investigation.…”

Section: Introductionmentioning

confidence: 99%

Zinc‐dithiocarbimates for the control of Hemileia vastatrix: a versatile alternative

Rabello

Rubinger

Silva

et al. 2022

Pest Management Science

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BACKGROUND The purpose of this work was to investigate the potential use of zinc‐dithiocarbimate salts to control Hemileia vastatrix, the causal agent of the coffee leaf rust disease, and to evaluate their toxicity towards Apis mellifera, one of the most important coffee plant pollinators. RESULTS Zinc‐dithiocarbimate salts were prepared and fully characterized by infrared, proton (1H) and carbon‐13 (13C) nuclear magnetic resonance and elemental analyses of carbon (C), hydrogen (H), nitrogen (N) and zinc (Zn). X‐ray diffraction technique studies confirmed the proposed structures. The salts inhibited the germination of H. vastatrix spores in vitro, with a 50% inhibitory concentration (IC50) from 12 to 18 μmol.L−1 and a 90% inhibitory concentration (IC90) from 23 to 26 μmol.L−1. Zinc‐dithiocarbimate salts with the best in vitro results were selected for in vivo experiments with Coffea arabica var Caturra and with the pollinator A. mellifera. The results were similar to those of Mancozeb, a broad‐spectrum contact fungicide, with a good control of the disease and low toxicity to the honeybee. CONCLUSION The zinc‐dithiocarbimate complex salts have potential to control coffee leaf rust, with low toxicity to the pollinator insect. © 2022 Society of Chemical Industry.

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Section: Introductionmentioning

confidence: 99%

Zinc‐dithiocarbimates for the control of Hemileia vastatrix: a versatile alternative

Rabello

Rubinger

Silva

et al. 2022

Pest Management Science

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“…Several studies have shown, in vitro, the inhibition of mycelial growth of the fungi Colletotrichum gloeosporioides and Botrytis cinerea by new compounds belonging to the dithiocarbimate group (Bottega et al, 2013;Oliveira et al, 2015). The dithiocarbimate group is analogous to the dithiocarbamates but does not have a commercial formulation.…”

Section: Introductionmentioning

confidence: 99%

Potential of the Dithiocarbimate Fungicides on the Control of Coffee Leaf Rust and Asian Soybean Rust

Silva¹,

Zambolim²,

Vidigal³

et al. 2021

JAS

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Coffee leaf rust (Hemileia vastatrix) and Asian soybean rust (Phakopsora pachyrhizi) are diseases that cause great losses in the productivity of these crops, not only in Brazil but on a global scale. Coffee and soybean varieties grown are susceptible to these diseases. Thus, it is necessary to search for efficient compounds for their chemical control, mainly from the group of protectors or residuals so that they can be formulated with systemic fungicides to control the diseases. This allows not only the efficient management of diseases but also the prevention of the emergence of resistant mutants in the populations of these pathogens. In this context, the present study aimed to evaluate the sensitivity and effect of bis(N-R-sulfonyldithiocarbimato)zincate(II) salts fungicides on the epidemiological components of pathosystems coffee × H. vastatrix and soybean × P. pachyrhizi. Initially, four zinc(II) complexes salts (1A, 2A, 1B, and 2B) with N-R-sulfonyldithiocarbimates were synthesized. In the first experiment, the in vitro sensitivity of H. vastatrix and P. pachyrhizi was studied for the four compounds synthesized and mancozeb at 0.5, 5.0, 50.0, 100.0 and 200.0 µmol L-1. All the compounds synthetized in this study had inhibitory effects on H. vastatrix and P. pachyrhizi. In the greenhouse it was studied the effect of bis(N-R-sulfonyldithiocarbimato)zincate(II) salts on the epidemiological components of coffee leaf rust and Asian soybean rust. For the pathosystem coffee × H. vastatrix, there were no differences in the values obtained for the bis(N-R-sulfonyldithiocarbimato)zincate(II) salts and mancozeb for the latent period. For the sporulated lesion variable, the control treatment had a mean value of 149.0 lesions/leaf, differing significantly from the other treatments. The mean value of compound 2B was estimated as 25.0 lesions/leaf, differing significantly from treatments 1A, 1B, 2B, and mancozeb. Treatments 1A, 1B, 2B, and mancozeb did not differ significantly from each other. For the Asian soybean rust, the area under the disease progress curve had a mean value of 75.8 for the control, while for the 2A treatment the value was 4.1, differing from the other compounds. The treatments 1A, 1B, 2A, and mancozeb did not differ significantly from each other. In conclusion, compounds 1A, 2A, and 1B were more efficient in the control of the coffee leaf rust, while compound 2A was efficient in the control of the Asian soybean rust.

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“…Compostos derivados de ditiocarbimatos vêm sendo testados como antifúngicos de interesse agrário, sendo comprovadamente eficazes contra patógenos dos gêneros Botrytis, Colletotrichum, Rhizoctonia e Hemileia (Alves et al, 2009;Oliveira et al, 2015;Rabello, 2021). Estes compostos possuem proximidade estrutural com ditiocarbamatos, como o Mancozeb, amplamente conhecidos por sua capacidade antifúngica (Gullino et al, 2010).…”

Section: Introductionunclassified

Nosema ceranae e Apis mellifera: proteção pela matriz peritrófica e ação de sais derivados de ditiocarbimatos no controle da infecção

Oliveira¹

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A abelha Apis mellifera é considerada um dos maiores polinizadores naturais do mundo. Sua preservação vem sendo alvo de estudos devido a grandes declínios populacionais, muitas vezes relacionados com questões como perda de habitat, uso indiscriminado de agroquímicos e infecções por patógenos. Esse trabalho traz informações sobre como a matriz peritrófica influencia na infecção por Nosema ceranae e investiga a capacidade de controle dessa doença com a utilização de compostos derivados de ditiocarbimatos. Primeiro, através de técnicas histológicas e ultraestruturais, foi avaliada a função que a matriz peritrófica possui na proteção contra o patógeno Nosema ceranae, mostrando que sua ausência afeta a concentração de esporos em indivíduos infectados e acelera o ciclo completo da infecção possibilitando liberação de novos esporos mais rapidamente para infecções sequenciais. Na segunda parte, ditiocarbimatos, compostos agroquímicos apresentados como possíveis alternativas menos tóxicas, foram testados para o controle de esporos de N. ceranae. Compostos não tóxicos às abelhas foram testados e mostraram possuir diferentes níveis de controle sobre o esporo de N. ceranae tanto em testes in vitro, como in vivo. Sendo assim, esse trabalho suporta o papel protetivo da matriz peritrófica no grau de infecção e comprova que compostos derivados de ditiocarbimato possuem potencial como agentes de proteção contra N. ceranae em A. mellifera. Palavras-chave: Abelhas. Intestino-médio. Matriz peritrófica. Nosema. Toxicidade.

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BIS(4-FLUOROPHENYLSULFONYLDITHIOCARBIMATO)ZINCATE(II) SALTS: NEW ANTIFUNGALS FOR THE CONTROL OFBotrytisBLIGHT

Cited by 3 publications

References 1 publication

Zinc‐dithiocarbimates for the control of Hemileia vastatrix: a versatile alternative

Zinc‐dithiocarbimates for the control of Hemileia vastatrix: a versatile alternative

Potential of the Dithiocarbimate Fungicides on the Control of Coffee Leaf Rust and Asian Soybean Rust

Nosema ceranae e Apis mellifera: proteção pela matriz peritrófica e ação de sais derivados de ditiocarbimatos no controle da infecção

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