Day 1 :
Keynote Forum
Konstantinos Kormas
University of Thessaly, Greece
Keynote: Bacteria as true residents in the gastrointestinal tract of commercially reared fish
Biography:
Abstract:
Keynote Forum
Susanne Zeilinger
University of Innsbruck, Austria
Keynote: From genes to biocontrol: Unraveling the molecular mechanisms of mycoparasitic fungus-fungus interactions
Time : 11:55-12:35
Biography:
Susanne Zeilinger has studied Microbiology and Genetics from the University of Vienna and during her Diploma thesis she gained experience in fungal enzyme characterization from the VTT Technical Research Center of Finland. She did her PhD from the Technical University of Vienna (TUW) on fungal cellulase gene regulation. As a Post-doctorate she has worked on Trichoderma biocontrol at TUW and as a Visiting Scientist at the Institute of Plant Pathology in Portici, Naples, Italy. In 2003, she became the Group Leader in the Research Area of Biotechnology and Microbiology at the Institute of Chemical Engineering at TUW. Since 2015, she is a Full Professor for Microbiology at the University of Innsbruck, Austria. Her research focuses on molecular fungal biology with a special interest in interactions of fungi with other (micro-) organisms, bio-communication and signal transduction.
Abstract:
Keynote Forum
Raimondas Jasevicius
Vilnius Gediminas Technical University, Lithuania
Keynote: Numerical modeling of the mechanical interaction of a bacterium
Time : 12:35-13:15
Biography:
Abstract:
- Microbial Association-Microbial Interactions | Plant-Microbe Interaction | Agricultural Microbiology | Host Microbe Interactions
Location: Forum 10
Chair
Konstantinos Kormas
University of Thessaly, Greece
Co-Chair
Robert Czajkowski
University of Gdansk, Poland
Session Introduction
Mayada Ali Salah Eldin Sabra
Alexandria University, Egypt
Title: Beneficial root endophytic fungi change growth and oil composition of sweet basil in heavy metal contaminated soil
Biography:
Abstract:
Biography:
Abstract:
Hossein Bannazadeh Baghi
Tabriz University of Medical Sciences, Iran
Title: Alphaherpesviruses Infection in the Upper Respiratory Tract
Biography:
Abstract:
Xia Yu
University of Helsinki, Finland
Title: A comparative characterization of different host-sourced Lactobacillus ruminis strains and their adhesive, inhibitory, and immunomodulatory functions
Biography:
Abstract:
Alexandre Bourles
University of New Caledonia, New Caledonia
Title: New Burkholderia sp. isolated from pioneer plants roots of ultramafic soils, play a key role in the plant adaptation to harsh edaphic conditions
Biography:
Bourles A is a PhD student at the ISEA (Institute of Exact and Applied Sciences), University of New Caledonia, New Caledonia.
Abstract:
Hyeonjeong Lee
Pohang University of Science and Technology, South Korea
Title: Microbial respiration-based screening of residual enrofloxacin in milk using capillary tube indicators
Biography:
Hyeonjeong Lee is a PhD candidate in Chemical Engineering at Pohang University of Science and Technology (POSTECH), Korea. Her research is focused on the development of biosensors for detecting bacteria, protein, and chemicals based on multifunctional nanoparticles.
Abstract:
A simple method was developed for detecting enrofloxacin in milk using microbial respiration and capillary-tube indicators. A glass vial containing E. coli ATCC 11303 in LB was spiked with enrofloxacin and sealed with a screw cap supporting a silicon septum. A capillary tube with a drop of ink was inserted through the septum, and the ink-level change was measured. The growth of E. coli produced CO2 gas, which increased the pressure inside the vial and raised the ink level in the capillary tube; in this manner, small changes in the gas volume were translated into large changes in the ink level. The increase in the ink level was inversely proportional to the concentration of enrofloxacin, which suppressed the growth of E. coli. The detection limit of enrofloxacin was found to be 10 ng/Ml by using the naked eye after the microbial culture had been permitted to grow over 2 hours.
Biography:
Francisco Medina-Paz has completed his Master’s from Center for Research and Advanced Studies of the IPN. Currently, pursuing his PhD and working on the assembly of the root microbiome of bean at the Center for Research and Advanced Studies of the IPN, Mexico. His major goal is to integrate molecular and bioinformatics tools into field ecological work to understand mechanisms that determine plant-microbe interactions under natural conditions.
Abstract:
Plant roots harbor a specific endophytic microbiome, which is largely obtained horizontally from the external (rhizospheric) soil microbiome. Both microbiomes contribute, e.g., to nutrient uptake and plant resistance. Endophytic bacteria colonize the root tissue despite the plant immune system. It remains an open question to which degree the microbiome's stability or dynamism over the lifetime of the plant depends on vertically versus horizontally transmitted bacteria. Here, we analyzed 16S rRNA gene amplicons generated from rhizosphere and endosphere samples of field-grown common bean (Phaseolus vulgaris) plants (root samples excluded nodules) and from in vitro cultured plants. We detected Firmicutes such as Paenibacillus in the in vitro samples, indicating a vertical mode of transmission of these putatively plant-growth promoting bacteria. Dominant taxa in the endosphere were Proteobacteria such as Rhizobium and Agrobacterium, which are suggested to contribute to plant nutrition and hormone synthesis. Overall, the diversity in the root endosphere was approximately 5-10 times lower than in the rhizosphere samples. Interestingly, the endophytic microbiomes did not change significantly over three phenological stages (plants with three true leaves, early flowering phase and during pod filling). We conclude that root microbiomes can reach equilibrium early during the ontogeny of a plant and that vertically transmitted bacteria can contribute to the root microbiome of bean plants. An ongoing project employs metagenomic data to obtain a better understanding of the processes that determine the assembly of the root microbiome of bean plants under field and in vitro conditions.