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1
Content available XVII Konferencja Europejskiego Oddziału SOCIETY FOR VECTOR ECOLOGY, 13-17 września 2010, Wrocław
100%
Rydzanicz K.
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nr 4
2
Content available Wprowadzenie do biologii warunkujacej srodowiskowe zwalczanie komarow
63%
Lonc E. , Rydzanicz K.
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tom 45
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nr 4
431-448
EN
Mosquitoes systematics, life cycle as well as morphology and bionomics of developmental stages, mosquitoes borne diseases, ecology and reemergence, vectorial capacity of some domestic species were presented with regard to mosquitoes control by the integrated methods and ecological prophylaxis.
3
Polskie Towarzystwo Biokontroli Komarów (Polish Mosquito Control Association)
63%
Rydzanicz K. , Guz-Regner K.
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nr 1
4
Content available Bezpieczeństwo ekologiczne komarobójczych biocydów Bacillus thuringiensis israelensis
63%
Rydzanicz K. , Lonc E.
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nr 4
5
Seasonal abundance of mosquito larvae (Diptera: Culicidae) in stormwater catch basins in the center of Wrocław (Poland)
51%
Rydzanicz K. , Jawien P. , Kaliwoda M. , Lonc E.
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nr Suppl.
6
Content available Mosquito fauna and perspectives for intergrated control of urban vector-mosquito populations in Southern Benin [West Africa]
51%
Lingenfelser A. , Rydzanicz K. , Kaiser A. , Becker N.
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nr 1
49-57
7
Content available Nieprzyjazne pasozytom a przyjazne srodowisku trangeniczne bioinsektycydy
51%
Kucinska J. , Lonc E. , Rydzanicz K.
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nr 1
11-20
EN
Transgenic bioinsecticides inimical to parasites, but imical to environment. Identification of Bacillus thuringiensis (Bt) parasporal crystalline inclusions composed of Cry proteins (=delta-endotoxins) resulted in introduction of microbial pesticides for biological control of some parasites. Delta-endotoxins are encoded by cry genes and are active against pest and nuisance insects (mostly mosquitoes and black flies - vectors of still important infectious diseases). The recent significant progress in DNA recombination technique may overcome limitations (a short residual persistence and a narrow spectrum of activity) associated with application of Bt conventional products. An introduction of cry genes from mosquitocidal subspecies B. th. israelensis (Bti) to the aquatic microorganisms inhabiting the same water bodies as mosquito and fly larvae (Diptera), has considerably improved the toxin delivery system to target insects. However, in the first experiments, in which Bti genes were cloned in cyanobacteria (Agmenellum quadruplicatum, Synechocystis PCC6803), a low gene expression was observed. Thus, it was necessary to integrate cry genes with strong promoters or to increase the number of vector-introduced copies. To overcome the obstacles of low gene expression and regulatory restriction for 1ecombinant organisms, Bti spore/crystal formulations were encapsulated in the aquatic protozoan, Tetrahymena pyriformis. Large numbers of crystals (180 to 240/cell) were accumulated in its food vacuoles. This system resulted also in an increase in toxin persistence from 24 to 71 h. Cloning Bti genes in B. sphaericus (which also produces mosquitocidal proteins) was another way of an increasing Bt crystal residual activity. In this case, the crystals were additionally protected by B. sphaericus exosporium. These transgenic bacteria produced large amounts of delta-endotoxins that remained under water surface longer than the wild B. sphaericus strains. Moreover, they had a broader spectrum of insecticidal activity, because B. Sphaericus is toxic mostly to Culex and Anopheles, and Bti - mostly to Culex, Aedes and some Simmulidae. Gram-negative bacteria (Asticcacaulis excentricus, Caulobacter crescentus and Ancylobacter aquaticus) turned out also to be effective delta-endotoxin producers. They grow on simple media and do not contain proteases which could degrade Cry proteins. In some cases, 100% mosquito larvae mortality was observed as a result of an exposure to transgenic microorganisms containing Bti genes. However, transgenic techniques are still not very popular in the world, despite their efficacy in biological control of insects. The transgenic organism construction is expensive and time-consuming. Genetic engineeling is still raising a lot of anxieties and doubts concerning inappropriate use of modified organisms. On the other hand, this technology could solve many problems associated with vectors of important diseases, which are still unapproachable to contemporary medicine.
8
Content available Zmiany zasiegu chorob transmitowanych przez komary pod wplywem globalnego ocieplenia klimatu
51%
Rydzanicz K. , Kiewra D. , Lonc E.
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nr 2
73-83
EN
Climate models suggest the strong possibility of range increase of the diseases transmitted by parasitic arthropods, mostly mosquitoes. In predicting processes of malaria and Dengue diseases dispersion the estimation of risk is based mostly on reproduction rate of vector species. These models allow to calculate the critical threshold of host density which is necessary to maintain parasites and pathogens transmission. Such studies based on integrated mathematical modelling indicate widespread increase of risk due to expansion of the areas suitable for mosquito−borne diseases transmission. This predicted increase is the most pronounced at the borders of the endemic areas and at higher altitudes within malaria and Dengue areas. The simulated change in mosquito−borne diseases risk must be interpreted on the basis of local environmental conditions as well as the effects of socio−economic developments and control disease programs. Apart from mathematical models the sequencing of proteins and DNA of vectors and their pathogens as well as satellite technology (GIS) are taken into consideration. It is supposed that potential impact of global climate change on malaria and Dengue risk can be reduced by constant warning system based on biological monitoring of mosquito vector species and their pathogens. Efficient care system connected with full diagnosis, treatment and prophylaxis of transmission diseases are also required.
9
Content available Czasoprzestrzenna analiza wystepowania dolnoslaskich gatunkow komarow i kleszczy z zastosowaniem GIS
51%
Lonc E. , Kiewra D. , Rydzanicz K. , Zyszkowska W.
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tom 53
147
10
Content available Professor Elżbieta Lonc, D. Sc. (1951–2017) – pro memoriam
51%
Kiewra D. , Rydzanicz K. , Czulowska A.
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nr 2
11
Comparison of activity and persistence of microbial insecticides based on Bacillus thuringiensis israelensis and Bacillus sphaericus in organicly polluted mosquito-breeding sites
51%
Rydzanicz K. , Sobczynski M. , Guz-Regner K.
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tom 19
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nr 6
12
Content available Monitoring srodowiskowy i zwalczanie miejskich populacji komarow Culicinae [Diptera: Culicidae] we Wroclawiu
51%
Lonc E. , Rydzanicz K. , Gomulkiewicz B.
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nr 3
571-578
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