Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Bacterial Phylum Actinobacteria

Bacterial Phylum Actinobacteria

Coryneform bacteria are gram-positive, aerobic, nonmotile rods that exhibit irregular, club-shaped, or V-shaped arrangements. Their V-shape results from snapping division, where the inner cell wall layer forms the cross-wall, while the outer layer remains intact until it ruptures on one side, causing the daughter cells to bend away.The primary genera are Corynebacterium and Arthrobacter. Corynebacterium includes diverse species, ranging from saprophytes to pathogens like Corynebacterium...

Epiphytes, Parasites, and Carnivores

Epiphytes, Parasites, and Carnivores

Plants often form mutualistic relationships with soil-dwelling fungi or bacteria to enhance their roots’ nutrient uptake ability. Root-colonizing fungi (e.g., mycorrhizae) increase a plant’s root surface area, which promotes nutrient absorption. While root-colonizing, nitrogen-fixing bacteria (e.g., rhizobia) convert atmospheric nitrogen (N2) into ammonia (NH3), making nitrogen available to plants for various biological functions. For example, nitrogen is essential for the biosynthesis of the...

Bacterial Phylum Planctomycetes

Bacterial Phylum Planctomycetes

Planctomycetes are a group of morphologically distinct bacteria predominantly classified into two orders: Planctomycetales and Brocadiales. These gram-negative bacteria exhibit unique features, including division by budding and the presence of stalks or appendages. Their cells are often found in rosette arrangements, and they are notable for possessing an S-layer in their cell envelope, which is relatively uncommon among bacteria. Additionally, Planctomycetes frequently exhibit intracellular...

Microbe-Plant Interactions

Microbe-Plant Interactions

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...

Other Unique Bacteria

Other Unique Bacteria

Magnetic bacteria exhibit a directed movement called magnetotaxis, driven by structures called magnetosomes. These magnetosomes consist of chains of magnetic particles made of either magnetite (Fe₃O₄) or greigite (Fe₃S₄) and are organized in a linear conformation by a protein scaffold within invaginations of the cell membrane. The bacteria align along the north–south magnetic field lines, much like a compass needle. They are typically microaerophilic or anaerobic and are commonly found near the...

Applications of Molecular Taxonomy

Applications of Molecular Taxonomy

Molecular taxonomy has revolutionized the understanding and classification of bacteria, providing precise insights into their diversity, evolutionary relationships, and ecological roles. By utilizing molecular techniques such as DNA sequencing and fingerprinting, researchers have made significant strides in various fields related to bacterial studies.Resolving Taxonomic AmbiguitiesMolecular taxonomy has been instrumental in distinguishing closely related bacterial species initially thought to...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Ordering Engineering among the Nanostructure Evolution Facilitates High-Performance Li Metal Anode.

Advanced materials (Deerfield Beach, Fla.)·2025

Same author

Hyaluronic Acid Hydrogel as a Retinal Patch in the Treatment of Rhegmatogenous Retinal Detachment: A Multicenter Randomised Parallel-Controlled Trial.

Clinical & experimental ophthalmology·2025

Same author

Tetrandrine regulates NAADP-mediated calcium signaling through a LIMP-2-dependent and sphingosine-mediated mechanism.

Nature communications·2025

Same author

Overlooked influence of phosphate on the performance of a dual membrane process with coagulation pretreatment.

Water research·2025

Same author

Association between the Alpha-1-acid glycoprotein concentrations and depression in US adult women: a cross-sectional study from NHANES 2021-2023.

Frontiers in psychiatry·2025

Same author

Transplantation of human embryonic stem cell-derived retinal pigment epithelial cells via injectable microfluidic-templated microgels for retinal regeneration.

Materials today. Bio·2025

Search research articles

Related Experiment Video

Updated: Jun 25, 2026

A Workflow for the Quantitative Assessment of the Endophytic and Epiphytic Bacterial Microbiomes of the Bark of Populus trichocarpa

A Workflow for the Quantitative Assessment of the Endophytic and Epiphytic Bacterial Microbiomes of the Bark of Populus trichocarpa

Published on: June 27, 2025

Multiple, novel biologically active endophytic actinomycetes isolated from upper Amazonian rainforests.

Carol A Bascom-Slack¹, Cong Ma, Emily Moore

¹Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT, USA.

Microbial Ecology

|March 3, 2009

Summary

Researchers discovered novel actinomycete species in Peru

More Related Videos

Inoculating and Observing Arbuscular Mycorrhizal Cultures on Superabsorbent Polymer-Based Autotrophic Systems

Inoculating and Observing Arbuscular Mycorrhizal Cultures on Superabsorbent Polymer-Based Autotrophic Systems

Published on: June 14, 2024

Isolation, Characterization, and Total DNA Extraction to Identify Endophytic Fungi in Mycoheterotrophic Plants

Isolation, Characterization, and Total DNA Extraction to Identify Endophytic Fungi in Mycoheterotrophic Plants

Published on: May 5, 2023

Related Experiment Videos

Last Updated: Jun 25, 2026

A Workflow for the Quantitative Assessment of the Endophytic and Epiphytic Bacterial Microbiomes of the Bark of Populus trichocarpa

A Workflow for the Quantitative Assessment of the Endophytic and Epiphytic Bacterial Microbiomes of the Bark of Populus trichocarpa

Published on: June 27, 2025

Inoculating and Observing Arbuscular Mycorrhizal Cultures on Superabsorbent Polymer-Based Autotrophic Systems

Inoculating and Observing Arbuscular Mycorrhizal Cultures on Superabsorbent Polymer-Based Autotrophic Systems

Published on: June 14, 2024

Isolation, Characterization, and Total DNA Extraction to Identify Endophytic Fungi in Mycoheterotrophic Plants

Isolation, Characterization, and Total DNA Extraction to Identify Endophytic Fungi in Mycoheterotrophic Plants

Published on: May 5, 2023

Area of Science:

Microbiology
Biodiversity
Natural Products

Background:

Microbial biodiversity is a vital source for novel medical and industrial compounds.
Higher plants harbor diverse microbial communities with potential bioactivities.

Purpose of the Study:

To isolate and characterize actinomycete species from Amazonian plant tissues.
To assess the antimicrobial potential of these isolates.

Main Methods:

Isolation of actinomycetes from approximately 300 Peruvian plant stem samples.
Screening for antimicrobial activity against fungal and bacterial pathogens.
Ribosomal DNA (rDNA) sequence analysis for species identification.

Main Results:

14 actinomycete species were isolated, all exhibiting antimicrobial activity.
Some isolates displayed broad-spectrum inhibition, while others were more specific.
Two isolates showed preferential inhibition of bacteria over eukaryotes.
rDNA analysis confirmed these species are novel and uncatalogued in GenBank.

Conclusions:

The study highlights the untapped microbial biodiversity within Amazonian plant tissues.
These novel actinomycetes represent a promising source of new antimicrobial agents.
Further research into these organisms could yield valuable medical and industrial compounds.