Special Issue "Diversity of Marine Invertebrate and Seaweed Symbiotic Bacteria"
A special issue of Diversity (ISSN 1424-2818).
Deadline for manuscript submissions: 30 April 2018
Dr. Ipek Kurtboke
Senior Lecturer in Environmental Microbiology, School of Science, Education and Engineering, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore DC, Queensland 4558, Australia
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Phone: +61 7 5430 2819
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Interests: microbial diversity; microbial systematics; ecophysiology of microorganisms; functional diversity of microorganisms; microbial ecosystems
The diverse range of marine bioactive compounds, especially those from marine-symbiotic bacteria, has been utilized for variety of industrial and environmental applications. However, to maximize the stream of bioactive compounds from these symbiotic bacteria, sound understanding on the taxonomical and functional diversity of these symbionts has to be increased. Correlating such understanding with the rationale of symbiont-aided host bioactive metabolite production can then improve prospects of generating drug leads from sponge sources. The composition of host-associated microflora is naturally influenced by environmental factors present at the geographical location; however, thus far, in-depth information on the environmental conditions and stress factors surrounding the host, which define this specific interaction, has been limited. To provide reliable information on the true symbiotic associations, many factors, such as the current directions, continental overflows, presence or absence of pollutants, as well as the characteristics of the sediments or reefs at the sponge sampling sites, have to be known. All these factors can define the response of host sponges to such surrounding factors and their selective acquisition of the microflora during the filter feeding activity. In the absence of such knowledge determination of the existence of the true symbiotic associations between the host and the microorganisms render difficult. This Special Issue, entitled “Diversity of Marine Invertebrate and Seaweed Symbiotic Bacteria”, is designed to generate such information, to improve the understanding on the existence of true symbiotic relationships between the host and symbiotic bacteria, which, in turn, will aid towards utilization of such bacteria for biodiscovery and biotechnology.
Dr. Ipek Kurtboke
Manuscript Submission Information
Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.
Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Diversity is an international peer-reviewed open access quarterly journal published by MDPI.
Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 850 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.
- Marine microbial diversity
- Eco-functional diversity of marine symbiotic bacteria
- Marine-symbiotic microbial metabolic diversity
- Marine microbial ecosystems
- Marine microbial systematics
- Marine ecosystem mining for bioactive symbiotic bacteria
- Marine environment and symbiosis
- Marine pollution and symbiosis
The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.
Type of the paper: Review
Tentative title: Marine invertebrates: underexplored sources for extracellular polymer-producing
Authors: Rizzo Carmen 1 , Angelina Lo Giudice 1,2
Affiliations: 1 Department of Chemical, Biological, Pharmaceutical and Environmental Sciences
(ChiBioFarAm), University of Messina, Messina, Italy
2 Institute for the Coastal Marine Environment, National Research Council (IAMC-CNR), Messina, Italy
Abstract: Associations between higher organisms and microorganisms often occur as mutualistic or symbiotic relationships, by providing benefits for both, in terms of protection and nutritional requirements.
Microorganisms could live attached to the surface of other organisms or within their tissues, thanks
to the adhesion to biofilm surfaces, very common in the sea as covering layer for all organisms, or
by creating themselves biofilm matrices. Many sponges, for example, are found to be habitat for
complex bacterial communities, by hosting up to 40% of microbial cells for millilitre of sponge
tissue volume. Associated bacteria support the defensive strategies of host organism by producing
secondary metabolites, in response to the environmental conditions of surrounding water.
Among secondary metabolites of microbial origin, extracellular polymeric substances - including
biosurfactants and exopolysaccharides - represent a class of eco-friendly compounds investigated
since several decades for their advantageous applications in numerous and important fields. They
are interesting for the remarkable role that they could assume in agriculture technology, in food,
cosmetic and pharmaceutic industries, in bioremediation strategies against different contaminants
(e.g. hydrocarbons, polycyclic aromatic compounds, heavy metals), in medical applications as
fungicidal, bactericidal, insecticidal, and anti-viral agents. Despite the recognised and undisputed
potentiality of these compounds in the future economy and technology, the large-scale production
still meets many limits, due to costs of recovery and the effective raw extracts yield. The
exploration of new sources of microbial producers’ isolation, with the subsequent possible
discovery of new producers and new molecules, actually represents the primary tool for a more
effective application and employment. Microorganisms, as little high-specialized factory, and more
strongly microbial communities associated to marine invertebrates, are currently considered the
major potential pool to draw new metabolites and bioactive compounds. The production of
exopolymers could occur in response to environmental stressors, as a result of physiological
processes, which require both complex cell-to-cell and bacteria-host interactions. Despite this,
biological marine matrices have been scarcely considered for the isolation of microorganisms
specialised in the production of extracellular polymeric molecules, as such as biosurfactants or
exopolysaccharides. The present contribute aims at reviewing the role of marine invertebrates as
habitat for the establishment of biosurfactant-producing microbial communities, the biodiversity
inside these latter and their biotechnological applications.