Effect of insecticide Alpha Super on phytopathogenic bacteria Рseudomonas syringae of agrophytocenosis of wheat

Butsenko, L.M.; Pasichnyk, L.A.; Buletsa, Natalia; Patyka, V.P.

doi:10.31073/agrovisnyk201703-03

Cited by 4 publications

(9 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similar activity was characteristic for another pyrethroid alpha-cypermethrin against P. syringae pv. atrofaciens [15].…”

Section: Discussionmentioning

confidence: 99%

“…After 48 h of cultivation at 28 • C, the number of streptomycin-resistant (Str R ) colonies was counted. Mutagenic effect of pesticides was estimated by increasing the number of Str R colonies formed on the medium with pesticide and streptomycin in comparison with the number of Str R colonies that grew on the medium with streptomycin only [15].…”

Section: Methodsmentioning

confidence: 99%

“…Such differences in the nature of growth in broth were observed in the study of morphological dissociants of P. syringae pv. atrofaciens UCM B-1011 induced by insecticide Alpha Super with the active substance alpha-cypermethrin [15].…”

Section: Figurementioning

confidence: 99%

“…It is known that a significant proportion of pesticides act on non-target organisms and have mutagenic activity [10]. Stress caused by abiotic factors and, in particular, by the action of pesticides, induces morphological and physiological changes in bacterial cells and phenotypic heterogeneity in the cell populations of phytopathogenic bacteria [14,15]. Scientists intensively investigated the effect of pesticides on soil microorganisms and bacteria in the plant phyllosphere [10,16].…”

Section: Introductionmentioning

confidence: 99%

“…Previously, we have shown that some pesticides, which are widely used in grain crops, have mutagenic activity or cause morphological dissociation of the agent of wheat basal bacteriosis P. syringae pv. atrofaciens [15].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

The Effect of Pesticides on the Tomato Bacterial Speck Disease Pathogen Pseudomonas Syringae pv. Tomato

et al. 2020

View full text Add to dashboard Cite

A significant part of the used pesticides does not reach the target organisms and, while remaining in the agrophytocenosis, influences all living organisms in it. Having a toxic and often mutagenic effect, pesticides induce morphological and physiological changes in the cells of microorganisms and are the cause of phenotypic heterogeneity of their populations. However, the effect of pesticides on phytopathogenic bacteria as non-target microorganisms remains out of the field of view for most researchers. However, the use of pesticides can lead to expansion of the diversity of existing phytopathogens and, as a consequence, complications of identification of the pathogens, loss of resistance by plants varieties, and increased harm from diseases caused by them. This study is focused on the effect of pesticides used in tomato plantations on the causative agent of bacterial speck of this crop—Pseudomonas syringae pv. tomato. The studies were carried out using the methods of classical microbiology. The mutagenic action of pesticides was recorded, taking into account the increase of the number of streptomycin resistance mutations in bacteria in the case of pesticide action. It is established that the fungicide aluminium phosethyl is characterised by a bacteriostatic effect on P. syringae pv. tomato. Deltamethrin insecticide does not affect the growth of P. syringae pv. tomato. However, there is an increase in the frequency of streptomycin resistance mutations in both studied strains of P. syringae pv. tomato after using deltamethrin. It is shown that the frequency of occurrence of R (rough colonies) forms of P. syringae pv. tomato IZ28 and IZ46 after using deltamethrin increased by 100 times when in comparison to the frequency of spontaneous morphological dissociation, or smooth-to-rough (S-R) mutation, of these bacteria. Therefore, aluminium phosethyl is characterised by moderate bacteriostatic action against P. syringae pv. tomato. Deltamethrin does not influence the growth of the pathogen of tomato speck but increases the frequency of formation of StrR mutants and R forms of phytopathogenic bacteria.

show abstract

“…Similar activity was characteristic for another pyrethroid alpha-cypermethrin against P. syringae pv. atrofaciens [15].…”

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

The Effect of Pesticides on the Tomato Bacterial Speck Disease Pathogen Pseudomonas Syringae pv. Tomato

et al. 2020

View full text Add to dashboard Cite

show abstract

Xanthomonas fuscans subsp. fuscans — a Pathogen of Small Brown Spot of Legumes

Гнатюк,

Житкевич,

Патика

2024

Mikrobiol. Z.

View full text Add to dashboard Cite

Xanthomonas fuscans subsp. fuscans is known as an obligate phytopathogen — the pathogen of small brown spot of beans that gradually expands the range of host plants and spreads worldwide on legumes. The review provides data on the problems of the pathogen’s systematics and its change depending on the new research and improvement of methods for studying biological properties. Historical data on the first stages of isolation of X. fuscans subsp. fuscans from bean and new stages of its spread and isolation from soybean in Ukraine, after which the pathogen moved from the monophage to polyphage status within the same plant family. The importance of X. fuscans subsp. fuscans as a potentially dangerous phytopathogen, as evidenced by the presence of its samples in many collections of living microorganisms in the world and the quarantine status of the pathogen in a number of European countries are underlined. It has been shown that the phytopathogen X. fuscans subsp. fuscans does not differ significantly from other xanthomonads in terms of its cultural, morphological, physiological, and biochemical properties, especially those that cause diseases of leguminous plants. At the same time, the only but the main feature of this bacterial culture is emphasized — the increased amount and activity of the intracellular enzyme tyrosinase, which distinguishes X. fuscans from all other bacterial phytopathogens and not only among xanthomonads. The variants of the stage of synthesis of tyrosinase and melanin in bacteria, due to which the black-brown pigment is formed, and the lack of research on the pathway of tyrosinase synthesis in phytopathogenic bacteria, in particular X. fuscans subsp. fuscans, are analized. The data on genotypic properties of X. fuscans subsp. fuscans, its affinity with other pathogens of the genus Xanthomonas that cause diseases of leguminous plants, and the possible role of the phenomenon of «horizontal gene transfer» in their affinity along with differences in biological properties are considered. The analyzed literature indicates the potential danger of the causative agent of small brown spot of legumes and the need for constant monitoring of the spread and study of its biological properties to develop methods for controling the spread of X. fuscans subsp. fuscans.

show abstract

Physiological and Biochemical Changes of Tomato Plants Under Bacterial Influence

Bogoslavets¹,

Nesterova²,

Kolomiiets³

et al. 2022

Biological Systems: Theory and Innovation

View full text Add to dashboard Cite

Tomato (Lycopersicon esculentum L) is one of the most important vegetable crops widely grown around the world. However, the global economic productivity of this crop is limited to a number of phytopathogens. Bacterial spotting and mild rot of tomatoes caused by Pseudomonas syringae pv. tomato and Pectobacterium carotovorum subsp. carotovorum, are one of the most common bacterial diseases that cause significant losses and reduce both the quality and quantity of fruits and impair the nutritional value of tomatoes. Tomato plants are affected by these pathogens throughout the growing season, the lesion is characterized by chlorosis, necrosis and rot. The aim of the study was to analyze the impact on the physiological and biochemical parameters of tomato sprouts affected by pathogens of P. syringae pv. tomato and P. carotovorum subsp. саrotovorum. It was found that strains of P. syringae pv. tomato IZ202014 and P. carotovorum subsp. carotovorum IZ207 cause a 30-40% decrease in germination energy and seed germination of Black Prince, Northern Queen, Riddle and Liana tomatoes compared to the control. According to the analysis of physiological and biochemical parameters, the most resistant to pathogens P. syringae pv. tomato, P. carotovorum subsp. carotovorum variety Northern Queen. Treatment of tomato plants with a suspension of the studied strains causes a decrease in chlorophyll content in seedlings by 58-93%. According to the chlorophyll a/b ratio, the Northern Queen and Black Prince varieties have the highest resistance to bacterial damage. Under the influence of cell suspensions of P. syringae pv. tomato IZ202014 and P. carotovorum subsp. carotovorum IZ207 showed changes in the activity of enzymes of the antioxidant system in tomato seedlings, which indicates a decrease in the oxidative processes of cells.

show abstract

Effect of insecticide Alpha Super on phytopathogenic bacteria Рseudomonas syringae of agrophytocenosis of wheat

Cited by 4 publications

References 3 publications

The Effect of Pesticides on the Tomato Bacterial Speck Disease Pathogen Pseudomonas Syringae pv. Tomato

The Effect of Pesticides on the Tomato Bacterial Speck Disease Pathogen Pseudomonas Syringae pv. Tomato

Xanthomonas fuscans subsp. fuscans — a Pathogen of Small Brown Spot of Legumes

Physiological and Biochemical Changes of Tomato Plants Under Bacterial Influence

Contact Info

Product

Resources

About