Pathogenicity of nematobacterial complexes and its development

a 2014

Pathogenicity of nematobacterial complexes and its development

DOBEŠ, Pavel, Jakub BERKA, Jana HURYCHOVÁ, Libor VOJTEK, Pavel HYRŠL et. al.

Basic information

Original name

Pathogenicity of nematobacterial complexes and its development

Authors

DOBEŠ, Pavel (203 Czech Republic, belonging to the institution), Jakub BERKA (203 Czech Republic, belonging to the institution), Jana HURYCHOVÁ (203 Czech Republic, belonging to the institution), Libor VOJTEK (203 Czech Republic, belonging to the institution) and Pavel HYRŠL (203 Czech Republic, guarantor, belonging to the institution)

Edition

International Congress on Invertebrate Pathology and Microbial Control & 47th Annual Meeting of the Society for Invertebrate Pathology, 2014

Other information

Language

English

Type of outcome

Konferenční abstrakt

Field of Study

30102 Immunology

Country of publisher

Germany

Confidentiality degree

není předmětem státního či obchodního tajemství

RIV identification code

RIV/00216224:14310/14:00076177

Organization unit

Faculty of Science

ISSN

Keywords (in Czech)

entomopatogenní hlístice; hmyz; mortalita; patogenita; vývoj

Keywords in English

entomopathogenic nematodes; insect; mortality; pathogenicity; development

Abstract

V originále

Entomopathogenic nematodes and their associated bacteria comprise together highly pathogenic complex able to invade and kill insect host within two days. Both bacteria and nematodes produce variety of factors interacting with insect immune system that help to overcome host defences. These factors are specific for each of nematobacterial complexes leading to the differences in their pathogenicity. Moreover, we observed difference in pathogenicity also between two isolates of one nematobacterial complex, Steinernema carpocapsae – Xenorhabdus nematophila. Ability to invade and kill insect host is low in newly emerged nematodes and develops through the time reaching its maximum after three weeks in complex Heterorhabditis bacteriophora – Photorhabdus luminescens. Differences in pathogenicity were observed also among particular generations of nematodes released from insect cadaver. Nematodes collected at the beginning of emergence were less pathogenic than subsequent collections. From third week of collection further we did not detect any other significant changes in nematobacterial pathogenicity, which is then influenced only by the survival of nematodes. Data describing development of infectivity and pathogenicity of Heterorhabditis bacteriophora – Photorhabdus luminescens complex will be used to increase efficiency and reproducibility of experimental infections used to describe immune response of insect to the nematobacterial complexes. Our research was supported by the project KONTAKT II LH14047 and program CZ.1.07/2.3.00/30.0009 co-financed from European Social Fund and the state budget of the Czech Republic.

Links

EE2.3.30.0009, research and development project

Name: Zaměstnáním čerstvých absolventů doktorského studia k vědecké excelenci

Citovat

DOBEŠ, Pavel, Jakub BERKA, Jana HURYCHOVÁ, Libor VOJTEK and Pavel HYRŠL. Pathogenicity of nematobacterial complexes and its development. In International Congress on Invertebrate Pathology and Microbial Control & 47th Annual Meeting of the Society for Invertebrate Pathology. 2014. ISSN 1866-590X.

@proceedings{1195383,
   author = {Dobeš, Pavel and Berka, Jakub and Hurychová, Jana and Vojtek, Libor and Hyršl, Pavel},
   booktitle = {International Congress on Invertebrate Pathology and Microbial Control & 47th Annual Meeting of the Society for Invertebrate Pathology},
   keywords = {entomopathogenic nematodes; insect; mortality; pathogenicity; development},
   language = {eng},
   title = {Pathogenicity of nematobacterial complexes and its development},
   year = {2014}
}

TY  - CONF
ID  - 1195383
AU  - Dobeš, Pavel - Berka, Jakub - Hurychová, Jana - Vojtek, Libor - Hyršl, Pavel
PY  - 2014
TI  - Pathogenicity of nematobacterial complexes and its development
KW  - entomopathogenic nematodes
KW  - insect
KW  - mortality
KW  - pathogenicity
KW  - development
N2  - Entomopathogenic nematodes and their associated bacteria comprise together highly pathogenic complex able to invade and kill insect host within two days. Both bacteria and nematodes produce variety of factors interacting with insect immune system that help to overcome host defences. These factors are specific for each of nematobacterial complexes leading to the differences in their pathogenicity. Moreover, we observed difference in pathogenicity also between two isolates of one nematobacterial complex, Steinernema carpocapsae – Xenorhabdus nematophila. Ability to invade and kill insect host is low in newly emerged nematodes and develops through the time reaching its maximum after three weeks in complex Heterorhabditis bacteriophora – Photorhabdus luminescens. Differences in pathogenicity were observed also among particular generations of nematodes released from insect cadaver. Nematodes collected at the beginning of emergence were less pathogenic than subsequent collections. From third week of collection further we did not detect any other significant changes in nematobacterial pathogenicity, which is then influenced only by the survival of nematodes. Data describing development of infectivity and pathogenicity of Heterorhabditis bacteriophora – Photorhabdus luminescens complex will be used to increase efficiency and reproducibility of experimental infections used to describe immune response of insect to the nematobacterial complexes. Our research was supported by the project KONTAKT II LH14047 and program CZ.1.07/2.3.00/30.0009 co-financed from European Social Fund and the state budget of the Czech Republic.
ER  -

DOBEŠ, Pavel, Jakub BERKA, Jana HURYCHOVÁ, Libor VOJTEK and Pavel HYRŠL. Pathogenicity of nematobacterial complexes and its development. In \textit{International Congress on Invertebrate Pathology and Microbial Control \&{} 47th Annual Meeting of the Society for Invertebrate Pathology}. 2014. ISSN~1866-590X.

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