Contribution of the Siderophores Pyoverdine and Enantio-Pyochelin to Fitness in Soil of Pseudomonas protegens Pf-5

Current Microbiology
Ignacio DreheJimena A Ruiz

Abstract

Pseudomonas protegens synthesizes two major iron-chelating metabolites (siderophores): pyoverdine (Pvd) and enantio-pyochelin (E-Pch). Although iron sequestration and uptake seem to be the main biological role of these siderophores, other functions including metal homeostasis and antibiotic activity have been proposed. The aim of this study was to evaluate the contribution of Pvd and E-Pch to the survival of P. protegens in soil using wild type and isogenic mutant strains unable to produce Pvd, E-Pch or both siderophores. Survival of these strains in sterile soil microcosms, in soil microcosms containing the native microflora and in sterile soil microcosms containing fusaric acid (a mycotoxin able to chelate iron and other metals), was compared by determination of colony forming units (CFU) per gram dry soil over time. In sterile soil, cell densities of Pvd-producing strains were significantly higher than that of non-producers after 21 days of permanence in the microcosms. In non-sterile soil, viability of all strains declined faster than in sterile soil and Pvd producers showed higher CFU × (g dry weight soil)-1 values than non-producers. The presence of fusaric acid negatively affected viability of strains unable to produce P...Continue Reading

References

May 14, 1969·Journal of Molecular Biology·H W Boyer, D Roulland-Dussoix
Jul 1, 1981·Proceedings of the National Academy of Sciences of the United States of America·C D CoxJ C Cook
Nov 17, 1999·Molecular Microbiology·M L Vasil, U A Ochsner
Mar 28, 2001·The Journal of Antibiotics·C H PhoebeC P Selitrennikoff
Jun 28, 2003·FEMS Microbiology Reviews·Simon C AndrewsFrancisco Rodríguez-Quiñones
Mar 11, 2005·Nature Reviews. Microbiology·Dieter Haas, Geneviève Défago
Feb 1, 1951·Journal of Clinical Pathology·E J Lowbury
Sep 8, 2006·Applied and Environmental Microbiology·Guo-Xin SunJian-Jiang Zhong
Dec 29, 2010·Biometals : an International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine·Zeb A YouardCornelia Reimmann
Sep 3, 2011·Environmental Microbiology·Isabelle J SchalkArmelle Braud
Oct 17, 2012·PloS One·Conrado AdlerPaula A Vincent
Jun 14, 2013·Proceedings. Biological Sciences·Zoé DumasRolf Kümmerli

❮ Previous
Next ❯

Citations

Apr 4, 2019·Frontiers in Microbiology·Nandhitha Venkatesh, Nancy P Keller
Aug 15, 2020·Frontiers in Microbiology·Thomas EngAindrila Mukhopadhyay
Dec 12, 2020·Computational and Structural Biotechnology Journal·Antoine Zboralski, Martin Filion

❮ Previous
Next ❯

Software Mentioned

GraphPad Prism

Related Concepts

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.