Preprints

Filtering by Subject: Environmental Microbiology and Microbial Ecology Life Sciences

Implications of microbial community assembly for ecosystem restoration: patterns, process, and potential

Emily Graham, Joseph E Knelman

Published: 2022-11-23
Subjects: Ecology and Evolutionary Biology, Environmental Microbiology and Microbial Ecology Life Sciences, Life Sciences

While it is now widely accepted that microorganisms provide essential functions in restoration ecology, the nature of relationships between microbial community assembly and ecosystem recovery remain unclear. There has been a longstanding challenge to decipher whether microorganisms facilitate or simply follow ecosystem recovery, and evidence for each is mixed at best. We propose that [...]

The Global Forest Health Crisis: A Public Good Social Dilemma in Need of International Collective Action

Geoffrey Williams, Matthew D. Ginzel, Zhao Ma, et al.

Published: 2022-03-10
Subjects: Agricultural and Resource Economics, Agricultural Economics, Agricultural Science, Agriculture, Behavioral Economics, Biodiversity, Biology, Biosecurity, Botany, Economics, Entomology, Environmental Microbiology and Microbial Ecology Life Sciences, Environmental Studies, Forest Biology, Forest Management, Forest Sciences, International Relations, Life Sciences, Microbiology, Other Forestry and Forest Sciences, Other Plant Sciences, Pathogenic Microbiology, Plant Biology, Plant Pathology, Plant Sciences, Political Science, Science and Technology Studies, Social and Behavioral Sciences

Society is confronted by interconnected threats to ecological sustainability. Among these is the devastation of forests by destructive non-native pathogens and insects introduced through global trade, leading to the loss of critical ecosystem services and a global forest health crisis. We argue that the forest health crisis is a public good social dilemma and propose a response framework that [...]

New insight into colonies of Microcystis (Cyanobacteria) as multi-specific floating biofilms

Claudia Piccini, Angel M Segura, Gabriela Martínez de la Escalera, et al.

Published: 2022-01-28
Subjects: Ecology and Evolutionary Biology, Environmental Microbiology and Microbial Ecology Life Sciences, Life Sciences, Microbiology

The ability to form biofilms is a functional trait shared by many bacterial species. Biofilms provide bacteria a sheltered environment where the nutrients and oxygen gradients create a heterogeneous matrix and promote cells to differentiate their metabolism and functions according to the position they occupy inside the matrix. Species of the Microcystis genus are among the most common [...]

Microbiotic particles in water and soil, water-soil microbiota coalescences, and antimicrobial resistance

Fernando Baquero, Teresa M. Coque, Natalia Guerra-Pinto, et al.

Published: 2021-11-30
Subjects: Ecology and Evolutionary Biology, Environmental Microbiology and Microbial Ecology Life Sciences, Life Sciences, Marine Biology, Microbiology

Bacterial organisms like surfaces. Water and soil contain a multiplicity of particulated material where bacterial populations and communities might attach. Microbiotic particles refers to any type of small particles (less than 2 mm) where bacteria (and other microbes) might attach, resulting in medium- long-term colonization. In this work, the interactions of bacterial organisms with microbiotic [...]

Impact of heat stress on the fitness outcomes of symbiotic infection in aphids: a meta-analysis

Kévin Tougeron, Corentin Iltis

Published: 2021-11-24
Subjects: Ecology and Evolutionary Biology, Entomology, Environmental Microbiology and Microbial Ecology Life Sciences, Evolution, Life Sciences, Microbiology, Other Ecology and Evolutionary Biology, Other Microbiology

Beneficial microorganisms shape the evolutionary trajectories of their hosts, facilitating or constraining the colonization of new ecological niches. One convincing example entails the responses of insect-microbe associations to rising temperatures. Indeed, the insect resilience to stressful high temperatures depends on the genetic identity of the obligate symbiont and the presence of heat [...]

Plant herbivore protection by arbuscular mycorrhizas: A role for fungal diversity?

Adam Frew, Pedro Madeira Antunes, Duncan D Cameron, et al.

Published: 2021-07-03
Subjects: Biodiversity, Ecology and Evolutionary Biology, Environmental Microbiology and Microbial Ecology Life Sciences, Life Sciences, Microbiology, Plant Biology, Plant Sciences

The symbiotic association between arbuscular mycorrhizal (AM) fungi and terrestrial plants can enhance plant defences against insect herbivores. Despite advances in our understanding of how AM fungi affect plant tolerance and resistance based defence mechanisms, we contend that the role of fungal diversity in these interactions continues to be largely overlooked. This is problematic considering [...]

The macroevolutionary consequences of niche construction in microbial metabolism

Djordje Bajic, Maria Rebolleda-Gomez, Martha Munoz, et al.

Published: 2021-05-31
Subjects: Bioinformatics, Computational Biology, Ecology and Evolutionary Biology, Environmental Microbiology and Microbial Ecology Life Sciences, Evolution, Genetics and Genomics, Life Sciences, Microbiology, Population Biology, Systems Biology

Microorganisms display a stunning metabolic diversity. Understanding the origin of this diversity requires understanding how macroevolutionary processes such as innovation and diversification play out in the microbial world. Metabolic networks, which govern microbial resource use, can evolve through different mechanisms, e.g. horizontal gene transfer or de novo evolution of enzymes and pathways. [...]

Understanding plant microbiomes requires a G x E framework

Jun-Hee Jung, Frank Reis, Christina Richards, et al.

Published: 2021-05-20
Subjects: Biodiversity, Botany, Ecology and Evolutionary Biology, Environmental Microbiology and Microbial Ecology Life Sciences, Life Sciences, Microbiology, Plant Breeding and Genetics Life Sciences, Plant Sciences, Terrestrial and Aquatic Ecology

Plant microbiomes have become one of the hottest topics in plant biology. Driven by the increased availability of metagenome sequencing methods, analyses of plant-associated microbiomes have been skyrocketing during the last decade. They have generally taken one of two main perspectives: (1) a focus on the microbiome itself, where researchers describe microbiome diversity and attempt to [...]

Microbial effects on plant phenology and fitness

Anna O'Brien, Nichole Ginnan, Maria Rebolleda-Gomez, et al.

Published: 2021-02-26
Subjects: Ecology and Evolutionary Biology, Environmental Microbiology and Microbial Ecology Life Sciences, Life Sciences, Microbiology, Plant Sciences

Plant development and the timing of developmental events (phenology) are tightly coupled with plant fitness. A variety of internal and external factors determine the timing and fitness consequences of these life-history transitions. Microbes interact with plants throughout their life-history and impact host phenology. This review summarizes current mechanistic and theoretical knowledge [...]

Soil fungal diversity and community assembly: Affected by island size or type?

Yong Zheng, Pulak Maitra, Hui-Yun Gan, et al.

Published: 2021-01-26
Subjects: Biodiversity, Ecology and Evolutionary Biology, Environmental Microbiology and Microbial Ecology Life Sciences, Life Sciences, Microbiology, Terrestrial and Aquatic Ecology

Fungi have huge biodiversity and play important roles in soil biogeochemical cycling and ecosystem services in island ecosystems. Although island biogeography has been widely studied in macroorganisms, the relationship between soil fungal diversity and area in islands is less documented. Here, we examine soil fungal communities of 18 oceanic islands belonged to two types of islands (8 general [...]

Assembly processes lead to divergent soil fungal communities within and among twelve forest ecosystems along a latitudinal gradient

Yong Zheng, Liang Chen, Niu-Niu Ji, et al.

Published: 2021-01-14
Subjects: Biodiversity, Ecology and Evolutionary Biology, Environmental Microbiology and Microbial Ecology Life Sciences, Life Sciences, Microbiology, Terrestrial and Aquatic Ecology

- Latitudinal gradients provide opportunities to better understand soil fungal community assembly and its relationship with vegetation, climate, soil and ecosystem function. Understanding the mechanisms underlying community assembly is essential for predicting compositional responses to changing environments. - We quantified the relative importance of stochastic and deterministic processes in [...]

Ecological Countermeasures for Pandemic Prevention: When Ecological Restoration is a Human Health Imperative

Jamie Reaser, Arne Witt, Gary M. Tabor, et al.

Published: 2020-12-06
Subjects: Animal Sciences, Bacteriology, Biodiversity, Biology, Ecology and Evolutionary Biology, Environmental Microbiology and Microbial Ecology Life Sciences, Environmental Public Health, Epidemiology, Immunity, Immunology and Infectious Disease, Immunology of Infectious Disease, Immunopathology, Integrative Biology, International Public Health, Life Sciences, Medicine and Health Sciences, Microbiology, Parasitology, Pathogenic Microbiology, Population Biology, Public Health, Systems Biology, Terrestrial and Aquatic Ecology, Veterinary Infectious Diseases, Veterinary Medicine, Veterinary Microbiology and Immunobiology, Veterinary Pathology and Pathobiology, Zoology

Ecological restoration should be regarded as a public health service. Unfortunately, the lack of quantitative linkages between environmental and human health has limited recognition of these principle. Advent of COVID-19 pandemic provides the impetus for the further discussion. We propose ecological countermeasures as highly targeted, landscape-based interventions to arrest the drivers of land [...]

How microbes can, and cannot, be used to assess soil health

Noah Fierer, Stephen Wood, Clifton P. Bueno de Mesquita

Published: 2020-09-07
Subjects: Biodiversity, Biology, Ecology and Evolutionary Biology, Environmental Microbiology and Microbial Ecology Life Sciences, Life Sciences, Microbiology, Terrestrial and Aquatic Ecology

Healthy soils are critical to the health of ecosystems, economies, and human populations. Thus, it is widely acknowledged that soil health is important to quantify, both for assessment and as a tool to help guide management strategies. What is less clear is how soil health should actually be measured, especially considering that soil health is not exclusively a product of soil physical and [...]

The quest for absolute abundance: the use of internal standards for DNA-based microbial and community ecology

Joshua Harrison, W. John Calder, Bryan N. Shuman, et al.

Published: 2020-03-26
Subjects: Environmental Microbiology and Microbial Ecology Life Sciences, Life Sciences, Microbiology

To characterize microbiomes and other ecological assemblages, ecologists routinely sequence and compare loci that differ among focal taxa. Counts of these sequences convey information regarding the occurrence and relative abundances of taxa, but provide no direct measure of their absolute abundances, due to the technical limitations of the sequencing process. The relative abundances in [...]

Experimentally altered rainfall regimes and host root traits affect grassland arbuscular mycorrhizal fungal communities

Coline Deveautour, Suzanne Donn, Sally Power, et al.

Published: 2019-07-29
Subjects: Biodiversity, Biology, Ecology and Evolutionary Biology, Environmental Microbiology and Microbial Ecology Life Sciences, Life Sciences, Microbiology, Plant Sciences, Terrestrial and Aquatic Ecology

Future climate scenarios predict changes in rainfall regimes. These changes are expected to affect plants via effects on the expression of root traits associated with water and nutrient uptake. Associated microorganisms may also respond to these new precipitation regimes, either directly in response to changes in the soil environment or indirectly in response to altered root trait expression. We [...]

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