scholarly journals A community perspective on the concept of marine holobionts: current status, challenges, and future directions

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e10911
Author(s):  
Simon M. Dittami ◽  
Enrique Arboleda ◽  
Jean-Christophe Auguet ◽  
Arite Bigalke ◽  
Enora Briand ◽  
...  
Keyword(s):  
Complex Systems ◽  
Conservation Management ◽  
Marine Ecosystems ◽  
Model Systems ◽  
Current Status ◽  
Future Directions ◽  
Microbe Interactions ◽  
Host Microbe Interactions ◽  
Experimental Model Systems ◽  
The Impact

Host-microbe interactions play crucial roles in marine ecosystems. However, we still have very little understanding of the mechanisms that govern these relationships, the evolutionary processes that shape them, and their ecological consequences. The holobiont concept is a renewed paradigm in biology that can help to describe and understand these complex systems. It posits that a host and its associated microbiota with which it interacts, form a holobiont, and have to be studied together as a coherent biological and functional unit to understand its biology, ecology, and evolution. Here we discuss critical concepts and opportunities in marine holobiont research and identify key challenges in the field. We highlight the potential economic, sociological, and environmental impacts of the holobiont concept in marine biological, evolutionary, and environmental sciences. Given the connectivity and the unexplored biodiversity specific to marine ecosystems, a deeper understanding of such complex systems requires further technological and conceptual advances, e.g., the development of controlled experimental model systems for holobionts from all major lineages and the modeling of (info)chemical-mediated interactions between organisms. Here we propose that one significant challenge is to bridge cross-disciplinary research on tractable model systems in order to address key ecological and evolutionary questions. This first step is crucial to decipher the main drivers of the dynamics and evolution of holobionts and to account for the holobiont concept in applied areas, such as the conservation, management, and exploitation of marine ecosystems and resources, where practical solutions to predict and mitigate the impact of human activities are more important than ever.

scholarly journals A community perspective on the concept of marine holobionts: current status, challenges, and future directions

2019 ◽  
Author(s):  
Simon M Dittami ◽  
Enrique Arboleda ◽  
Jean-Christophe Auguet ◽  
Arite Bigalke ◽  
Enora Briand ◽  
...  
Keyword(s):  
Complex Systems ◽  
Marine Ecosystems ◽  
Model Systems ◽  
Current Status ◽  
Future Directions ◽  
Stable Relationship ◽  
Living Together ◽  
Microbe Interactions ◽  
Host Microbe Interactions ◽  
Experimental Model Systems

Host-microbe interactions play crucial roles in marine ecosystems, but we still have very little understanding of the mechanisms that govern these relationships, the evolutionary processes that shape them, and their ecological consequences. The holobiont concept is a renewed paradigm in biology that can help to describe and understand these complex systems. It posits that a host and its associated microbiota, living together in a stable relationship, form the holobiont, and have to be studied together as a coherent biological and functional unit to understand its biology, ecology, and evolution. Here we discuss critical concepts and opportunities in marine holobiont research and identify key challenges in the field. We highlight the potential economic, sociological, and environmental impacts of the holobiont concept in marine biological, evolutionary, and environmental sciences with comparisons to terrestrial sciences where appropriate. Given the connectivity and the unexplored biodiversity specific to marine ecosystems, a deeper understanding of such complex systems requires further technological and conceptual advances, e.g. the development of controlled experimental model systems for holobionts from all major lineages and the modeling of (info)chemical-mediated interactions between organisms. The most significant challenge is to bridge cross-disciplinary research on tractable model systems in order to address key ecological and evolutionary questions. This will be crucial to decipher the roles of marine holobionts in biogeochemical cycles, but also developing concrete applications of the holobiont concept e.g. to increase yield or disease resistance in aquacultures or to protect and restore marine ecosystems through management projects.

scholarly journals A community perspective on the concept of marine holobionts: current status, challenges, and future directions

2019 ◽  
Author(s):  
Simon M Dittami ◽  
Enrique Arboleda ◽  
Jean-Christophe Auguet ◽  
Arite Bigalke ◽  
Enora Briand ◽  
...  
Keyword(s):  
Complex Systems ◽  
Marine Ecosystems ◽  
Model Systems ◽  
Current Status ◽  
Future Directions ◽  
Stable Relationship ◽  
Living Together ◽  
Microbe Interactions ◽  
Host Microbe Interactions ◽  
Experimental Model Systems

Host-microbe interactions play crucial roles in marine ecosystems, but we still have very little understanding of the mechanisms that govern these relationships, the evolutionary processes that shape them, and their ecological consequences. The holobiont concept is a renewed paradigm in biology that can help to describe and understand these complex systems. It posits that a host and its associated microbiota, living together in a stable relationship, form the holobiont, and have to be studied together as a coherent biological and functional unit to understand its biology, ecology, and evolution. Here we discuss critical concepts and opportunities in marine holobiont research and identify key challenges in the field. We highlight the potential economic, sociological, and environmental impacts of the holobiont concept in marine biological, evolutionary, and environmental sciences with comparisons to terrestrial sciences where appropriate. Given the connectivity and the unexplored biodiversity specific to marine ecosystems, a deeper understanding of such complex systems requires further technological and conceptual advances, e.g. the development of controlled experimental model systems for holobionts from all major lineages and the modeling of (info)chemical-mediated interactions between organisms. The most significant challenge is to bridge cross-disciplinary research on tractable model systems in order to address key ecological and evolutionary questions. This will be crucial to decipher the roles of marine holobionts in biogeochemical cycles, but also developing concrete applications of the holobiont concept e.g. to increase yield or disease resistance in aquacultures or to protect and restore marine ecosystems through management projects.

scholarly journals A community perspective on the concept of marine holobionts: current status, challenges, and future directions

2019 ◽  
Author(s):  
Simon M Dittami ◽  
Enrique Arboleda ◽  
Jean-Christophe Auguet ◽  
Arite Bigalke ◽  
Enora Briand ◽  
...  
Keyword(s):  
Complex Systems ◽  
Marine Ecosystem ◽  
Marine Ecosystems ◽  
Model Systems ◽  
Current Status ◽  
Future Directions ◽  
Stable Relationship ◽  
Living Together ◽  
Microbe Interactions ◽  
Host Microbe Interactions

Host-microbe interactions play crucial roles in marine ecosystems, but we still have very little understanding of the mechanisms that govern these relationships, the evolutionary processes that shape them, and their ecological consequences. The holobiont concept is a renewed paradigm in biology that can help describe and understand these complex systems. It posits that a host and its associated microbiota, living together in a stable relationship, form the holobiont, and have to be studied together, as a coherent biological and functional unit, to understand its biology, ecology and evolution. Here we discuss critical concepts and opportunities in marine holobiont research and identify key challenges in the field. We highlight the potential economic, sociological, and environmental impacts of the holobiont concept in marine biological, evolutionary, and environmental sciences with comparisons to terrestrial science wherever appropriate. Given the connectivity and the unexplored biodiversity of marine ecosystems, a deeper understanding of such complex systems requires further technological and conceptual advances. For the marine scientific community, the most significant challenge is to bridge functional research on tractable and original model systems and global approaches addressing ecological and evolutionary questions. This will be crucial for establishing the roles of marine holobionts in biogeochemical cycles, but also developing concrete applications of the holobiont concept in aquaculture and marine ecosystem management projects.

scholarly journals A community perspective on the concept of marine holobionts: state-of-the-art, challenges, and future directions

2019 ◽  
Author(s):  
Simon M Dittami ◽  
Enrique Arboleda ◽  
Jean-Christophe Auguet ◽  
Arite Bigalke ◽  
Enora Briand ◽  
...  
Keyword(s):  
Complex Systems ◽  
Functional Unit ◽  
State Of The Art ◽  
Model Systems ◽  
Future Directions ◽  
Significant Challenge ◽  
Living Together ◽  
Microbe Interactions ◽  
Host Microbe Interactions ◽  
Bridge Functional

Host-microbe interactions play crucial roles in marine ecosystems, but we still have very little understanding of the mechanisms that govern these relationships, the evolutionary processes that shape them, and their ecological consequences. The holobiont concept is a renewed paradigm in biology that can help describe and understand these complex systems. It posits that a host and its associated microbiota, living together in a long-lasting relationship, form the holobiont, and have to be studied together, as a coherent biological and functional unit, in order to understand the biology, ecology and evolution of the organisms. Here we discuss critical concepts and opportunities in marine holobiont research and identify key challenges in the field. We highlight the potential economic, sociological, and environmental impacts of the holobiont concept in marine biological, evolutionary, and environmental sciences with comparisons to terrestrial science whenever appropriate. A deeper understanding of such complex systems, however, will require further technological and conceptual advances. The most significant challenge will be to bridge functional research on simple and tractable model systems and global approaches. This will require scientists to work together as an (inter)active community in order to address, for instance, ecological and evolutionary questions and the roles of holobionts in biogeochemical cycles.

Intestinal Microbiota: Facts and Fiction

2017 ◽  
Vol 35 (1-2) ◽  
pp. 139-147 ◽  
Author(s):  
Miloslav Kverka ◽  
Helena Tlaskalová-Hogenová
Keyword(s):  
Inflammatory Diseases ◽  
Research Directions ◽  
Vast Number ◽  
Chronic Inflammatory Diseases ◽  
Immune Mediated ◽  
Complex Ecosystem ◽  
Microbe Interactions ◽  
Host Microbe Interactions ◽  
The Impact ◽  
Number Of Bacteria

In humans, the gut microbiota forms a complex ecosystem consisting of a vast number of bacteria, Archaea, fungi and viruses. It represents a major stimulus to the development of the immune system and many other physiological functions, so that it may shape the individual's susceptibility to infectious and immune-mediated diseases. The emergence of new ‘-omics' methods recently revolutionized the way we study the host-microbe interactions, but they also raised new questions and issues. In this review, we discuss the impact of these new data on the current and future therapies for chronic inflammatory diseases. We also outline the major conceptual, technical and interpretational issues that recently led to some misleading conclusions and discuss in brief the current research directions in the field.

Status and Future of NDE in Section XI

2003 ◽  
Author(s):  
Jack Spanner
Keyword(s):  
Nuclear Industry ◽  
Current Status ◽  
Future Directions ◽  
Examination Methods ◽  
Surface Examination ◽  
License Renewal ◽  
Certification Requirements ◽  
The Impact ◽  
Near Future ◽  
Performance Demonstration

This paper discusses the current status of NDE requirements in Section XI and future directions. The Code is well on its way migrating towards performance-based requirements in contrast to the traditional prescriptive requirements. The requirements for ultrasonic examination performance demonstration are contained in Appendix VIII and this has had a significant impact on the nuclear industry. The question arises as to the necessity and value of imposing performance demonstration requirements on the less technically demanding surface examination methods such as magnetic particle and liquid Penetrant examination methods. The impact of risk informed inspection and license renewal on NDE should be evaluated in the near future. Finally, the trend towards developing performance based NDE personnel certification requirements will be described.

The 1994 Veylien Henderson Award of the Society of Toxicology of Canada. Mechanisms in the pathogenesis of amiodarone-induced pulmonary toxicity

1995 ◽  
Vol 73 (12) ◽  
pp. 1675-1685 ◽  
Author(s):  
Thomas E. Massey ◽  
Randall G. Leeder ◽  
Elizabeth Rafeiro ◽  
James F. Brien
Keyword(s):  
Pulmonary Toxicity ◽  
Parent Compound ◽  
Model Systems ◽  
Ion Regulation ◽  
Reactive Oxygen Species Formation ◽  
Future Directions ◽  
Cellular Energy ◽  
Current State ◽  
Species Formation ◽  
Experimental Model Systems

Although amiodarone is a highly efficacious antidysrhythmic agent, the drug produces numerous adverse effects. The most critical of these is pulmonary toxicity because of the potential for mortality. This review examines the experimental model systems used to study amiodarone toxicity, summarizes the current state of knowledge regarding the processes involved in amiodarone-induced pulmonary toxicity (AIPT), and includes a discussion of potential future directions. Possible contributing processes to initiation of AIPT include phospholipidosis, altered calcium ion regulation, generation of reactive oxygen species, formation of an amiodarone aryl radical, and perturbation of cellular energy production. In addition, an immune response to the parent compound or to a metabolite could play a role. It is expected that elucidation of the mechanism(s) of AIPT will lead to safer antidysrhythmic agents and (or) to effective treatments for the prevention or amelioration of AIPT.Key words: amiodarone, pulmonary fibrosis, oxidative stress, pulmonary toxicity, pneumonitis.

scholarly journals Stabilization and optimization of host-microbe-environment interactions as a potential reason for the behavior of natal philopatry

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Ting-bei Bo ◽  
Kevin D. Kohl
Keyword(s):  
Gut Microbiota ◽  
Early Life ◽  
Survival Rates ◽  
Genetic Optimization ◽  
Natal Philopatry ◽  
Future Directions ◽  
Animal Development ◽  
Key Factor ◽  
Microbe Interactions ◽  
Host Microbe Interactions

AbstractMany animals engage in a behavior known as natal philopatry, where after sexual maturity they return to their own birthplaces for subsequent reproduction. There are many proposed ultimate factors that may underlie the evolution of natal philopatry, such as genetic optimization, suitable living conditions, and friendly neighbors, which can improve the survival rates of offspring. However, here we propose that a key factor that has been overlooked could be the colonization of gut microbiota during early life and the effects these microorganisms have on host performance and fitness. In addition to the bacteria transmitted from the mother to offspring, microbes from the surrounding environment also account for a large proportion of the developing gut microbiome. While it was long believed that microbial species all have global distributions, we now know that there are substantial geographic differences and dispersal limitations to environmental microbes. The establishment of gut microbiota during early life has enormous impacts on animal development, including energy metabolism, training of the immune system, and cognitive development. Moreover, these microbial effects scale to influence animal performance and fitness, raising the possibility for natural selection to act on the integrated combination of gut microbial communities and host genetics (i.e. the holobiont). Therefore, in this paper, we propose a hypothesis: that optimization of host-microbe-environment interactions represents a potentially important yet overlooked reason for natal philopatry. Microbiota obtained by natal philopatry could help animals adapt to the environment and improve the survival rates of their young. We propose future directions to test these ideas, and the implications that this hypothesis has for our understanding of host-microbe interactions.

scholarly journals Exercise and the Microbiome: Mechanistic Perspectives of the Impact of Exercise on the Gut-Vascular Axis

mSystems ◽  
2021 ◽  
Vol 6 (4) ◽  
Author(s):  
Marc D. Cook ◽  
Taylor Hogue
Keyword(s):  
Health Outcomes ◽  
Microbial Communities ◽  
Human Health ◽  
Metabolic Profiling ◽  
Vascular Health ◽  
Microbe Interactions ◽  
Health And Disease ◽  
Host Microbe Interactions ◽  
The Impact ◽  
Disease Understanding

Given the participation of the microbiome in human health and disease, understanding the context of host-microbe interactions involved in vascular pathophysiology is now evolving through identifying microbial communities, specific taxa, and metabolic profiling which can be coupled to human health outcomes. Exercise has been used to define mechanisms related to improved vascular health, which may involve the microbiome.

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