Wyniki wyszukiwania - AGRO

1

Strategies of biochemical defence mechanisms of parasites against oxidants and free radicals

100%

Hadas E., Stankiewicz M.

Acta Parasitologica

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1996

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tom 41

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nr 1

Biological damage brought about by free radical mediated mechanisms can be prevented either by specific chemical scavengers or by protective enzymes that neutralise the radicals or their precursors. Protection can also occur by repair of damage once it has occurred. This review summarises studies of the major biochemical defence mechanisms against oxidants and free radicals and the mechanisms that repair oxidatively damaged proteins. These mechanisms may be a field in the search for improved ways to inhibit parasite survival.

2

Agricultural health and health promotion

88%

Tenyi J.

Annals of Agricultural and Environmental Medicine

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1994

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tom 01

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nr 2

3

Different aspects of algal studies - some remarks

88%

Wilk-Wozniak E., Wojtal A.

Oceanological and Hydrobiological Studies

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2005

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tom 34

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nr Suppl.3

4

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

The role of environmental management systems in protection of water resources in Poland

88%

Hewelke P., Malek J., Samol J.

Przegląd Naukowy Wydziału Inżynierii i Kształtowania Środowiska

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2000

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nr 19

5

Active protection of the endangered Lobaria pulmonaria in the Ukrainian part of the International Biosphere Reserve 'Eastern Carpathians'

88%

Kondratyuk S. Y., Coppins B. J.

Roczniki Bieszczadzkie

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1998

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tom 07

6

Protection of mice against vaccinia and herpes simplex virus infection by Propionibacterium acnes

75%

Zgorniak-Nowosielska I., Cwik D., Slawinska B.

Archivum Immunologiae et Therapiae Experimentalis

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1989

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tom 37

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nr 3-4

7

The role of magnesium in the protection of entomopathogenic nematodes from soil pollution with oil derivatives

75%

Jaworska M.

Journal of Elementology

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2014

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tom 19

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nr 3

The aim of the paper was to identify the influence of magnesium on the preservation of pathogenic abilities of entomopathogenic nematodes living in soil contaminated with oil derivatives. Entomopathogenic nematodes living under natural conditions in soil or applied to soil as biopreparations for plant pest control are sensitive to soil contamination with heavy metals and oil derivatives. These nematodes do not respond directly by higher mortality but by a decrease in their pathogenic abilities, which adversely affects the success in searching and eliminating pests. A Polish commercial preparation called Owinema SC, containing infective juveniles of Steinernema feltiae Filipjev (Rhabditida: Steinernematidae), was used to test the effect of oil derivatives on pathogenicity and reproduction of entomopathogenic nematodes. Soil was polluted with petrol, diesel oil and used engine oil; the control was soil unpolluted with oil derivatives. Magnesium sulphate was also added (MgSO4∙H2O) in the amount of 160 mg per 1 liter of the suspension. The three oil derivatives in concentrations of: 0.3, 0.6 and 1.0 g or in double doses, i.e. 0.6, 1.2 and 2.0 g were poured over weighted soil batches. The control remained intact. Three replications of each treatment were made. Subsequently, Tenebrio molitor L. larvae used as bait inesct were placed in containers with the suspension. The bait insects were kept in the containers for 7 days, and afterwards they were removed from the soil and taken from the traps in order to check their mortality rate. Furthermore, to test the reproduction ability of entomopathogenic nematodes, dead larvae were moved to “islands” previously prepared according to the Dutky method. The results were presented as the number of entomopathogenic nematodes per 1 dead larvae of Tenebrio molitor L.

8

Role of the antioxidants in the protection against oxidative stress in cattle - nonenzymatic mechanisms (Part 2)

75%

Kleczkowski M., Klucinski W., Sikora J., Zdanowicz M., Dziekan P.

Polish Journal of Veterinary Sciences

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2003

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tom 06

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nr 4

9

Zoopleuston of small water bodies in Polesie National Park and its protection buffer zone

75%

Plaska W.

Teka Komisji Ochrony i Kształtowania Środowiska Przyrodniczego

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2013

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tom 10

10

How does isoprene protect plant membranes from thermal shock?

75%

Siwko M. E., Marrink S. J., Mark A. E.

Cellular and Molecular Biology Letters

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2005

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tom 10

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nr Suppl.

11

Local and systemic protection of poinsettia [Euphorbia pulcherrima Willd.] against Botrytis cinerea Pers. induced by benzothiadiazole

75%

Kulek B., Floryszak-Wieczorek J.

Acta Physiologiae Plantarum

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2002

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tom 24

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nr 3

12

Theoretical considerations on some elements of soil water erosion

75%

Glinski P., Kowalski D.

Journal of Water and Land Development

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2005

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nr 09

13

Economical effectiveness of Phytophthora infestans control according to decision support systems

75%

Wojtowicz A., Lipa J. J., Jorg E.

Journal of Plant Protection Research

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2004

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tom 44

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nr 4

In the field experiments performed in 1999–2001 the profitability of late blight control in accordance with three decision support systems: NegFry,Simphyt and Stephan with routine fungicide program was compared. Potato protection carried out according to the recommendations of the decision support systems guaranteed higher profitability of late blight control than when potato was protected routinely. The highest profitability was recorded for susceptible variety Bekas protected according to NegFry.

14

Mercury toxicity to Chlorella vulgaris Beijerinck: protection by amino acids

75%

Mohanty L., Mohapatra D. K., Mohapatra P. K., Mohanty R. C.

Polish Journal of Environmental Studies

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1998

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tom 07

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nr 1

Mercury is known to be toxic to a number of phytoplankton even at very low concentrations. The metal inhibited survival, growth and biosynthesis of chlorophyll, carbohydrate and lipid of the green alga Chlorella vulgaris at its toxic concentrations (≥ 0.1 μM), but induced the biosynthesis of proline. The addition of amino acids (Alanine, Aspargine, Glutamate, Histidine and Cysteine) to the growth medium had a significant impact on bioassay results. The toxicity was expressed differently depending on concentration and type of amino acid added to cultures. LC50s ranged from 0.68 ± 0.004 to 0.97 ± 0.008 μM and the acute toxicity of Hg2+ in amino acid supplemented media followed the order C > C + ALA > C + GLU > C + ASP > C + HIS > C + CYS. The static dose of the metal to the alga was found to be 1 + 0.006 μM but its inhibitory effect on the alga was drastically reduced with the addition of amino acids. There were positive correlations between growth and metabolic activities of the alga and concentration of amino acid added to cultures at the presence of static concentration of Hg2+. The results suggested that amino acids have moderating effects on toxicity of Hg2+ because of their ability to regulate the concentration of free Hg2+ ions in growth medium.

15

Specificity of macrophyte vegetation of the Wielkopolski and Poleski National Parks - state of preservation and problems of protection

75%

Pelechaty M., Sugier P.

Acta Agrophysica

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2002

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tom 67

16

Lichens in the Ukrainian part of the International Biosphere Reserve 'Eastern Carpathians': history of the study and problems of their protection

75%

Kondratyuk S. Y., Coppins B. J.

Roczniki Bieszczadzkie

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1998

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tom 07

17

Role of antioxidants in the protection against oxidative stress in cattle - trace elements and enzymatic mechanisms [Part 3]

75%

Kleczkowski M., Klucinski W., Sikora J., Zdanowicz M.

Polish Journal of Veterinary Sciences

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2004

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tom 07

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nr 3

The most important enzymatic mechanisms which protect an organism against oxidative stress are superoxide dismutase (SOD), peroxidase (Px), e.g. glutathione peroxidase (GSH-Px) and ascorbate peroxidase, catalase and glutathione reductase. Their activity depends on many trace elements. Enzymatic mechanisms, functioning under physiological conditions, prevent the spread of free radical reactions. New and reoccurring metabolic and infectious diseases of cattle emerge when there is a disproportion in the balance between reactive oxygen species and antioxidative enzymatic barrier.

18

Protection of piglets against diarrhoea by commercial rotavirus - E.coli vaccine

75%

Sereika V., Salomskas A., Mazeika A.

Bulletin of the Veterinary Institute in Puławy

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1998

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tom 42

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nr 1

19

Nadsiansky Regional Landscape park as a component of the International Biosphere Reserve 'Eastern Carpathians'

75%

Stoyko S., Shushniak V.

Roczniki Bieszczadzkie

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1997

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tom 06

20

Protective effects of influenza immunization in previously vaccinated haemophiliac patients

75%

Brydak L. B., Rokicka-Milewska R., Klukowska A., Machala M.

Bulletin of the Veterinary Institute in Puławy

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1998

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tom 42

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nr 1

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