Effect of Photorhabdus luminescens phase variants on the in vivo and in vitro development and reproduction of the entomopathogenic nematodes Heterorhabditis bacteriophora and Steinernema carpocapsae

FEMS Microbiology Ecology
Richou Han, R U Ehlers

Abstract

Photorhabdus luminescens (Enterobacteriaceae) is a symbiont of entomopathogenic nematodes Heterorhabditis spp. (Nematoda: Rhabditida) used for biological control of insect pests. For industrial mass production, the nematodes are produced in liquid media, pre-incubated with their bacterial symbiont, which provides nutrients essential for the nematode's development and reproduction. Particularly under in vitro conditions, P. luminescens produces phase variants, which do not allow normal nematode development. The phase variants were distinguished based on dye absorption, pigmentation, production of antibiotic substances, occurrence of crystalline inclusion proteins and bioluminescence. To understand the significance of the phase shift for the symbiotic interaction between the bacterium and the nematode, feeding experiments tested the effect of homologous and heterologous P. luminescens phase variants isolated from a Chinese Heterorhabditis bacteriophora (HO6), the Heterorhabditis megidis type strain from Ohio (HNA) and the type strain of Heterorhabditis indica (LN2) on the in vivo and in vitro development and reproduction of the nematode species H. bacteriophora (strain HO6) and another rhabditid and entomopathogenic nematode, Ste...Continue Reading

References

Jun 1, 1992·Applied and Environmental Microbiology·L J GerritsenP H Smits
Feb 1, 1992·Biochemical Society Transactions·D J Clarke, B C Dowds
Jun 1, 1988·Applied and Environmental Microbiology·W H RichardsonK H Nealson
Jan 1, 1995·Applied and Environmental Microbiology·G B LeismanS A Forst
Feb 1, 1996·Biochemical Society Transactions·A Coulson
Oct 1, 1996·International Journal of Systematic Bacteriology·R J AkhurstN E Boemare
May 1, 1989·Applied and Environmental Microbiology·R E HurlbertC L Small
Dec 14, 2005·Applied and Environmental Microbiology·A VolgyiS Forst
Oct 1, 1995·Applied and Environmental Microbiology·K C Krasomil-Osterfel

❮ Previous
Next ❯

Citations

Aug 1, 2015·Journal of Invertebrate Pathology·L A LaceyM S Goettel
Mar 21, 2006·Proteomics·Evelyne TurlinSylviane Derzelle
Jul 28, 2020·Biotechnology and Bioengineering·Carlos Inocencio Cortés-Martínez, Norberto Chavarría-Hernández
Aug 23, 2020·Microbial Ecology·Abigail M D MaherChristine T Griffin
Jun 28, 2020·Applied and Environmental Microbiology·Alice RegaioloRalf Heermann
Nov 17, 2009·FEMS Microbiology Reviews·John Chaston, Heidi Goodrich-Blair
Jun 15, 2016·Canadian Journal of Microbiology·Christine Chapman, Louis S Tisa
Feb 15, 2003·FEMS Microbiology Reviews·Richard ffrench-ConstantDavid Clarke
Jan 10, 2021·International Journal for Parasitology·Eric KenneyIoannis Eleftherianos
May 21, 2008·BMC Genomics·Anna MünchRalf Heermann

❮ Previous
Next ❯

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.