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Microbe-Plant Interactions01:09

Microbe-Plant Interactions

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Microbe-plant interactions represent a dynamic spectrum of associations shaped by intricate chemical signaling. These interactions can be neutral, beneficial, or detrimental, and profoundly influence plant physiology, growth, and ecosystem function. The plant microbiome, comprising bacteria, fungi, archaea, protists, and viruses, plays a pivotal role in mediating these effects through surface colonization, internal colonization, or systemic symbiosis.Mutualistic associations, particularly with...
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Microorganisms colonize various regions of the human body, including the mouth, nasal passages, throat, stomach, intestines, urogenital tract, and skin. The total number of microbial cells is estimated to range from 10¹³ to 10¹⁴—comparable to, or exceeding, the number of human somatic cells. This host–microbiome relationship has led to the conceptualization of humans as supraorganisms, wherein microbial communities perform vital roles in development, immunity,...
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The large intestine hosts the most densely populated microbial ecosystem in the human body. This complex community primarily consists of anaerobic bacteria, with Bacillota (formerly Firmicutes) and Bacteroidota (formerly Bacteroidetes) as the predominant groups. The distribution of these microbes varies along different sections of the large intestine, influenced by local environmental factors such as oxygen availability and nutrient composition.The cecum, located at the beginning of the large...
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The Skin Microbiota01:27

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The human skin serves as a complex ecosystem inhabited by a diverse community of microorganisms, including bacteria, fungi, and viruses. This microbiome plays a critical role in maintaining skin health and defending against pathogenic invaders. The composition of microbial communities varies significantly across different regions of the body, influenced primarily by the local levels of moisture and sebum.Regional Variation in Skin MicrobiotaCutibacterium acnes predominantly colonizes sebaceous...
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Isolation and Analysis of Microbial Communities in Soil, Rhizosphere, and Roots in Perennial Grass Experiments
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The plant microbiome at work.

Klaus Schlaeppi, Davide Bulgarelli

    Molecular Plant-Microbe Interactions : MPMI
    |December 17, 2014
    PubMed
    Summary

    Understanding the plant microbiome, the collection of microbes interacting with plants, is crucial for crop yield. Research is advancing to reveal how these complex microbial communities impact plant fitness and agricultural applications.

    Area of Science:

    • Microbiology
    • Plant Science
    • Ecology

    Background:

    • Plants host diverse microbial communities, known as the plant microbiota, on and within their tissues.
    • While microbial community structure is well-studied, functional insights into their collective impact on plant fitness are limited.
    • Current understanding of plant-microbe interactions often relies on studies of individual species, not entire communities.

    Purpose of the Study:

    • To explore the current state of plant-microbiome research.
    • To identify future research directions in understanding plant microbial communities.
    • To propose applications for harnessing the plant microbiome in agriculture.

    Main Methods:

    • Phylogenetic profiling of plant microbial communities.

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  • Experimental studies on individual microbial interactions with plants.
  • Review and synthesis of existing plant-microbiome research.

    • Main Results:

    • Microbial community profiling has detailed the phylogenetic structure of the plant microbiota.
    • Functional insights into plant microbiomes are primarily from single-organism studies.
    • The net effect of complex microbial communities on plant fitness remains largely unknown.

    Conclusions:

    • Unraveling the plant microbiome's collective activities is essential for optimizing crop yield.
    • Future research should focus on the functional roles of entire microbial communities.
    • Translating basic science findings into agricultural applications can capitalize on the plant microbiome's potential.