Emma Marangon - AIMS@JCU

Emma Marangon

emma.marangon@my.jcu.edu.au

PhD
College of Science and Engineering

Emma Marangon

emma.marangon@my.jcu.edu.au

PhD
College of Science and Engineering
Determining the role of microorganisms in acclimatisation and adaptation of reef species to future climate scenarios

Emma completed her Bachelor degree in Biology and Master degree in Marine Biology at the University of Padova (Italy). She performed her Master research at the University of Adelaide (Australia), where her project investigated the effects of ocean warming and acidification on predator-prey interactions. Following graduation, Emma gained extensive experience in the field of molecular biology at the marine institute CCMAR (Portugal), where she studied the microbial communities associated with the gastrovascular cavity of corals through quantitative genetic approaches. Afterwards, she extended her knowledge in microbiology by participating in the broad Evolution 21 project at the Australian Institute of Marine Science.

Determining the role of microorganisms in acclimatisation and adaptation of reef species to future climate scenarios

2018 to 2022

Project Description

The project aims to 1) define the functional role of the microbiota in several reef species, 2) investigate the microbial changes throughout host developmental stages, 3) characterize the role of microbes in holobiont tolerance to future ocean warming and acidification, and 4) explore mechanisms of microbe-mediated transgenerational acclimatisation in reef species.

Project Importance

Significant declines in coral reef health and diversity are predicted for the coming decades unless reef species adapt or acclimatize to increased environmental pressures. Although microorganisms can respond very rapidly to changing conditions, the microbial contribution to adaptation of reef species is poorly explored. The project will characterize whether microbes can contribute to the adaptive capacity of several reef species to climate stressors, providing critical information for forecasting reef ecosystem resilience to environmental perturbations.

Project Methods

Multi-generational, multi-taxa experiments will be performed in the AIMS SeaSimulator to investigate the research questions. Microbial diversity and functional role will be determined using a combination of metagenomics and metatranscriptomic sequencing, stable isotope probing, molecular techniques (e.g. FISH, NanoSIMS) and physiological measurements of the host.

Project Results

The outcomes of the project will shade light on the role of microbes in the holobiont, determine whether microbes can contribute to acclimatisation of their host to future climate, and identify the mechanisms of microbial transmission. Overall, the project will assess the potential for microbially mediated adaptation of reef species to future climate scenarios.

Keywords

Bacteria,
Biochemistry,
Climate change,
Coral reefs,
Corals,
Echinoderms,
Genetics,
Interaction,
Management tools,
Manipulative experiments,
Microbial,
Microbiology,
Molecular techniques,
Ocean acidification,
Ocean warming,
Physiology,
Porifera (sponges),
Quantitative marine science