Results 31 to 40 of about 5,654 (233)

Evolution of multicellularity in Dictyostelia [PDF]

open access: yes, 2019
The well-orchestrated multicellular life cycle of Dictyostelium discoideum has fascinated biologists for over a century. Self-organisation of its amoebas into aggregates, migrating slugs and fruiting structures by pulsatile cAMP signalling and their ...
Du, Qingyou   +3 more
core   +2 more sources

Bacterial Stigmergy: An Organising Principle of Multicellular Collective Behaviours of Bacteria [PDF]

open access: yesScientifica, 2015
The self-organisation of collective behaviours often manifests as dramatic patterns of emergent large-scale order. This is true for relatively “simple” entities such as microbial communities and robot “swarms,” through to more complex self-organised systems such as those displayed by social insects, migrating herds, and many human activities.
Erin S. Gloag   +2 more
openaire   +4 more sources

Specific mutations in the permease domain of septal protein SepJ differentially affect functions related to multicellularity in the filamentous cyanobacterium Anabaena

open access: yesMicrobial Cell, 2018
Filamentous, heterocyst-forming cyanobacteria are multicellular organisms in which growth requires the activity of two interdependent cell types that exchange nutrients and regulators.
Félix Ramos-León   +3 more
doaj   +1 more source

Noise-driven cell differentiation and the emergence of spatiotemporal patterns.

open access: yesPLoS ONE, 2020
The emergence of phenotypic diversity in a population of cells and their arrangement in space and time is one of the most fascinating features of living systems.
Hadiseh Safdari   +5 more
doaj   +1 more source

Integrating Horizontal Gene Transfer and Common Descent to Depict Evolution and Contrast It with ‘‘Common Design [PDF]

open access: yes, 2010
Horizontal gene transfer (HGT) and common descent interact in space and time. Because events of HGT co-occur with phylogenetic evolution, it is difficult to depict evolutionary patterns graphically. Tree-like representations of life’s diversification are
Espinosa, Avelina   +1 more
core   +2 more sources

Toward major evolutionary transitions theory 2.0 [PDF]

open access: yes, 2015
The impressive body of work on the major evolutionary transitions in the last 20 y calls for a reconstruction of the theory although a 2D account (evolution of informational systems and transitions in individuality) remains.
Szathmáry, Eörs
core   +1 more source

In the beginning was the word: How terminology drives our understanding of endosymbiotic organelles

open access: yesMicrobial Cell, 2019
The names we give objects of research, to some extent, predispose our ways of thinking about them. Misclassifications of Oomycota, Microsporidia, Myxosporidia, and Helicosporidia have obviously affected not only their formal taxonomic names, but also the
Miroslav Oborník
doaj   +1 more source

Considering Intra-individual Genetic Heterogeneity to Understand Biodiversity [PDF]

open access: yes, 2019
In this chapter, I am concerned with the concept of Intra-individual Genetic Hetereogeneity (IGH) and its potential influence on biodiversity estimates. Definitions of biological individuality are often indirectly dependent on genetic sampling -and vice ...
A Cárdenas-Flores   +69 more
core   +2 more sources

Bacterial Programmed Cell Death and Multicellular Behavior in Bacteria

open access: yesPLoS Genetics, 2006
Traditionally, programmed cell death (PCD) is associated with eukaryotic multicellular organisms. However, recently, PCD systems have also been observed in bacteria. Here we review recent research on two kinds of genetic programs that promote bacterial cell death. The first is mediated by mazEF, a toxin-antitoxin module found in the chromosomes of many
Hanna Engelberg-Kulka   +3 more
openaire   +4 more sources

Bacterial marginolactones trigger formation of algal gloeocapsoids, protective aggregates on the verge of multicellularity [PDF]

open access: yesProceedings of the National Academy of Sciences, 2021
Photosynthetic microorganisms including the green alga Chlamydomonas reinhardtii are essential to terrestrial habitats as they start the carbon cycle by conversion of CO 2 to energy-rich organic carbohydrates.
Mario K. C. Krespach   +7 more
openaire   +2 more sources

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