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Wyszukujesz frazę "BCA" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Antagonistic activity of some fungi and Actinomycetes against pathogens of damping-off of sugar beet seed lings
Autorzy:
Hanna, Nowakowska
Powiązania:
https://bibliotekanauki.pl/articles/2199006.pdf
Data publikacji:
2005-12-22
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
BCA
damping-off
pathogens
sugar beet
Opis:
The antagonistic activity of some Biological Control Agents (BCA) isolates of Trichoderma sp., Penicillium sp., Gliocladium sp., and Actinomycetes - Streptomyces sp. against pathogens of sugar beet damping-off: Aphanomyces cochlioides, Pythium debaryanum and Phoma betae was tested in vivo and in vitro. Fourty-nine isolates of fungi and seventy four of Actinomycetes were isolated from compost and soil in which those pathogens did not occur. The microorganisms effective against at least two pathogens in vitro tests were incorporated into the soil or added to the seed as a treatment during pelleting process. The microorganisms used in vivo tests limited the number of infected seedlings. Some of them protected emerging plants on the same level as fungicides commercially used for seed treatment.
Źródło:
Plant Breeding and Seed Science; 2005, 52; 69-78
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of the Secondary Metabolite Producing Pseudomonas fluorescens CHA0 on Soil Protozoa and Bacteria
Autorzy:
Winding, Anne
Oberender, Jana
Powiązania:
https://bibliotekanauki.pl/articles/763449.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:
Effects, BCA, secondary metabolite, Pseudomonas fluorescens CHA0, soil, protozoa, bacteria, PCR-DGGE
Opis:
Bacteria producing secondary metabolites with antagonistic effects on fungal pathogens have received attention during the last decades as an alternative to chemical pesticides. They, however, might also have effects on indigenous soil organisms like bacteria and protozoa, the latter ones being among the most important grazers of bacteria in soil. The present study reports on the effect of the potential biocontrol agent Pseudomonas fluorescens CHA0 and its genetically modified derivative CHA0/pME3424 on indigenous soil bacteria and protozoa in a soil system. CHA0/pME3424 overproduces two of the secondary metabolites produced by CHA0: the polyketide antibiotics pyoluteorin (Plt) and 2,4-diacetylphloroglucinol (DAPG). P. fluorescens CHA0/gfp1 and CHA0/pME3424 both negatively affected the abundance of soil bacteria and protozoa and the genetic community structure of Kinetoplastida studied by PCR-DGGE. The negative effects were detectable after 14 days but were decreasing and are expected to be temporary. The overproducer of secondary metabolites did not differ in effect from the wild type. The soil respiration and bacterial genetic community structure were not significantly affected. The study shows the soil bacteria and protozoa to be temporary affected by bacteria producing secondary metabolites, which can have implications for nutrient-cycling in soil and environmental risks of biocontrol agents.
Źródło:
Acta Protozoologica; 2012, 51, 3
1689-0027
Pojawia się w:
Acta Protozoologica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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