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Modulation of bacterial multicellularity via spatio-specific polysaccharide secretion. [PDF]

open access: yesPLoS Biology, 2020
The development of multicellularity is a key evolutionary transition allowing for differentiation of physiological functions across a cell population that confers survival benefits; among unicellular bacteria, this can lead to complex developmental ...
Salim T Islam   +18 more
doaj   +2 more sources

A delivered DNase toxin creates population heterogeneity through transient intoxication of siblings [PDF]

open access: yesmBio
Population heterogeneity is important for multicellular behavior, as well as bet-hedging strategies. Recent findings suggest a role for bacterial toxin delivery in generating population heterogeneity, but the molecular mechanisms by which this occurs are
Hanna Eriksson   +2 more
doaj   +2 more sources

Bacterial Ventures into Multicellularity: Collectivism through Individuality. [PDF]

open access: yesPLoS Biology, 2015
Multicellular eukaryotes can perform functions that exceed the possibilities of an individual cell. These functions emerge through interactions between differentiated cells that are precisely arranged in space.
Simon van Vliet, Martin Ackermann
doaj   +1 more source

Detection of horizontal gene transfer in the genome of the choanoflagellate Salpingoeca rosetta

open access: yesScientific Reports, 2021
Horizontal gene transfer (HGT), the movement of heritable materials between distantly related organisms, is crucial in eukaryotic evolution. However, the scale of HGT in choanoflagellates, the closest unicellular relatives of metazoans, and its possible ...
Danielle M. Matriano   +2 more
doaj   +1 more source

SepT, a novel protein specific to multicellular cyanobacteria, influences peptidoglycan growth and septal nanopore formation in Anabaena sp. PCC 7120

open access: yesmBio, 2023
Anabaena sp. PCC 7120 grows by forming filaments of communicating cells and is considered a paradigm of bacterial multicellularity. Molecular exchanges between contiguous cells in the filament take place through multiprotein channels that traverse the ...
Cristina Velázquez-Suárez   +10 more
doaj   +1 more source

Interactions of PatA with the Divisome during Heterocyst Differentiation in Anabaena

open access: yesmSphere, 2020
The Anabaena organismic unit is a filament of communicating cells. Under conditions of nitrogen scarcity, some cells along the filament differentiate into heterocysts, which are specialized in the fixation of atmospheric N2 and provide the vegetative ...
Ana Valladares   +2 more
doaj   +1 more source

Swarming bacteria undergo localized dynamic phase transition to form stress-induced biofilms

open access: yeseLife, 2021
Self-organized multicellular behaviors enable cells to adapt and tolerate stressors to a greater degree than isolated cells. However, whether and how cellular communities alter their collective behaviors adaptively upon exposure to stress is largely ...
Iago Grobas   +2 more
doaj   +1 more source

The Inorganic Nutrient Regime and the mre Genes Regulate Cell and Filament Size and Morphology in the Phototrophic Multicellular Bacterium Anabaena

open access: yesmSphere, 2020
The model cyanobacterium Anabaena sp. PCC 7120 exhibits a phototrophic metabolism relying on oxygenic photosynthesis and a complex morphology. The organismic unit is a filament of communicated cells that may include cells specialized in different ...
Cristina Velázquez-Suárez   +2 more
doaj   +1 more source

Understanding Multicellularity: The Functional Organization of the Intercellular Space [PDF]

open access: yes, 2019
The aim of this paper is to provide a theoretical framework to understand how multicellular systems realize functionally integrated physiological entities by organizing their intercellular space. From a perspective centered on physiology and integration,
Bich, Leonardo   +2 more
core   +10 more sources

Cyanobacteria and the Great Oxidation Event:Evidence from genes and fossils [PDF]

open access: yes, 2015
Cyanobacteria are among the most ancient of evolutionary lineages, oxygenic photosynthesizers that may have originated before 3.0 Ga, as evidenced by free oxygen levels.
Donoghue, Philip   +2 more
core   +8 more sources

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