a 2015

Plant alcaloid and probiotics increase resistance of honeybees to nematobacterial infection

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

Basic information

Original name

Plant alcaloid and probiotics increase resistance of honeybees to nematobacterial infection

Name in Czech

Plant alcaloid and probiotics increase resistance of honeybees to nematobacterial infection

Authors

HYRŠL, Pavel (203 Czech Republic, guarantor, belonging to the institution), Pavel DOBEŠ (203 Czech Republic, belonging to the institution), Libor VOJTEK (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), Jaroslav HAVLIK (203 Czech Republic), Martin KAMLER (203 Czech Republic), Zuzana HRONCOVÁ (203 Czech Republic), Jiří KILLER (203 Czech Republic), Jan TYL (203 Czech Republic) and Dalibor TITĚRA (203 Czech Republic)

Edition

15th Meeting of the IOBCWPRS Working Group "Microbial and Nematode Control of Invertebrathe Pests" 2015

Other information

Language

English

Type of outcome

Konferenční abstrakt

Field of Study

30102 Immunology

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

RIV identification code

RIV/00216224:14310/15:00080479

Organization unit

Faculty of Science

Keywords (in Czech)

entomopatogenní hlístice; včely; imunita; probiotika

Keywords in English

entomopathogenic nematodes; honeybees; immunity; probiotics

Tags

International impact, Reviewed
Změněno: 10/2/2016 15:25, doc. RNDr. Pavel Hyršl, Ph.D.

Abstract

V originále

Entomopathogenic nematodes (EPNs) are obligate insect parasites that are symbiotically associated with specific entomopathogenic bacteria. These nematobacterial complexes are highly pathogenic to insect hosts and therefore used in biological control of insect pests. As was shown previously, EPNs can be used also as a natural infection model and a powerful tool to study insect immunity. In this study we show that also honeybee larvae are suitable hosts for nematobacterial complex that offer an excellent environment for successful development of both nematodes and their symbiotic bacteria. Here we used EPNs for evaluation of the overall immune resistance of honeybee larvae treated with potentially immuno-modulating substances (plant alcaloid sanguinarin and probiotics). Honeybee larvae were infected with 10 IJ of Heterorhabditis bacteriophora or Steinernema feltiae per larva, both carrying their symbiotic bacteria, and then scored for mortality caused by the nematobacterial infection. In comparison to untreated honeybee larvae we observed the decrease in mortality of approx. 35 % in case of H. bacteriophora and approx. 10% upon S. feltiae infection in larvae treated by selected substances. Both sanguinarin and probiotic treatment showed similar protective effect that was less significant in highly virulent S. feltiae. This is the first record that the nematobacterial infection was used for evaluation of immune status of beneficial insect. We suggest and propose this method as a valuable tool for immunity testing in honeybees as well as in other insects. Our research is supported by grant from the Ministry of Agriculture of Czech Republic (project No. QJ1210047) and by the program CZ.1.07/2.3.00/30.0009 co-financed from European Social Fund and the state budget of the Czech Republic.

In Czech

Entomopathogenic nematodes (EPNs) are obligate insect parasites that are symbiotically associated with specific entomopathogenic bacteria. These nematobacterial complexes are highly pathogenic to insect hosts and therefore used in biological control of insect pests. As was shown previously, EPNs can be used also as a natural infection model and a powerful tool to study insect immunity. In this study we show that also honeybee larvae are suitable hosts for nematobacterial complex that offer an excellent environment for successful development of both nematodes and their symbiotic bacteria. Here we used EPNs for evaluation of the overall immune resistance of honeybee larvae treated with potentially immuno-modulating substances (plant alcaloid sanguinarin and probiotics). Honeybee larvae were infected with 10 IJ of Heterorhabditis bacteriophora or Steinernema feltiae per larva, both carrying their symbiotic bacteria, and then scored for mortality caused by the nematobacterial infection. In comparison to untreated honeybee larvae we observed the decrease in mortality of approx. 35 % in case of H. bacteriophora and approx. 10% upon S. feltiae infection in larvae treated by selected substances. Both sanguinarin and probiotic treatment showed similar protective effect that was less significant in highly virulent S. feltiae. This is the first record that the nematobacterial infection was used for evaluation of immune status of beneficial insect. We suggest and propose this method as a valuable tool for immunity testing in honeybees as well as in other insects. Our research is supported by grant from the Ministry of Agriculture of Czech Republic (project No. QJ1210047) and by the program CZ.1.07/2.3.00/30.0009 co-financed from European Social Fund and the state budget of the Czech Republic.

Links

CZ.1.07/2.3.00/30.0009, interní kód MU
(CEP code: EE2.3.30.0009)
Name: Zaměstnáním čerstvých absolventů doktorského studia k vědecké excelenci (Acronym: Postdoc I.)
Investor: Ministry of Education, Youth and Sports of the CR, 2.3 Human resources in research and development
QJ1210047, research and development project
Name: Vývoj nových prostředků pro podporu imunity včel, prevenci a léčbu včelích onemocnění (Acronym: Probiotika - imunita včel)
Investor: Ministry of Agriculture of the CR