Results 101 to 110 of about 14,667 (203)

The roles of dispersal limitation and pre-adaptation in shaping Paraburkholderia endosymbiont frequencies in social amoeba communities

open access: yesApplied and Environmental Microbiology
Endosymbiotic interactions have long played fundamental roles in shaping the evolution and diversification of eukaryotes. However, we still have a limited understanding of how ecological processes govern the distribution of endosymbionts that are still ...
James G. DuBose   +6 more
doaj   +1 more source

In Vitro Culture of the Insect Endosymbiont Spiroplasma poulsonii Highlights Bacterial Genes Involved in Host-Symbiont Interaction

open access: yesmBio, 2018
Endosymbiotic bacteria associated with eukaryotic hosts are omnipresent in nature, particularly in insects. Studying the bacterial side of host-symbiont interactions is, however, often limited by the unculturability and genetic intractability of the ...
Florent Masson   +4 more
doaj   +1 more source

The Symbiosome: Legume and Rhizobia Co-evolution toward a Nitrogen-Fixing Organelle?

open access: yesFrontiers in Plant Science, 2018
In legume nodules, symbiosomes containing endosymbiotic rhizobial bacteria act as temporary plant organelles that are responsible for nitrogen fixation, these bacteria develop mutual metabolic dependence with the host legume.
Teodoro Coba de la Peña   +5 more
doaj   +1 more source

Extending the Modern Synthesis: The evolution of ecosystems [PDF]

open access: yes, 2010
The Modern Evolutionary Synthesis formalizes the role of variation, heredity, differential reproduction and mutation in population genetics. Here we explore a mathematical structure, based on the asymptotic limit theorems of information theory, that ...
Rodrick Wallace
core   +2 more sources

Stochastic Fluctuations of the Facultative Endosymbiont Wolbachia due to Finite Host Population Size

open access: yesEcology and Evolution
Many insects and other animals host heritable endosymbionts that alter host fitness and reproduction. The prevalence of facultative endosymbionts can fluctuate in host populations across time and geography for reasons that are poorly understood.
Jason M. Graham   +2 more
doaj   +1 more source

Host-Encoded Aminotransferase Import into the Endosymbiotic Bacteria Nardonella of Red Palm Weevil

open access: yesInsects
Symbiotic systems are intimately integrated at multiple levels. Host–endosymbiont metabolic complementarity in amino acid biosynthesis is especially important for sap-feeding insects and their symbionts. In weevil–Nardonella endosymbiosis, the final step
Ying Huang   +3 more
doaj   +1 more source

Endosymbiosis

open access: yes
Abstract All eukaryotes harbor one or more remnants of ancient bacterial-derived endosymbionts, all of which have experienced considerable reduction in genome size. The colonization of an alphaproteobacterium in the stem eukaryote ultimately became the mitochondrion, to which membrane bioenergetics were relocated from the plasma membrane
openaire   +3 more sources

Endosymbiotic bacteria within the nematode-trapping fungus Arthrobotrys musiformis and their potential roles in nitrogen cycling

open access: yesFrontiers in Microbiology
Endosymbiotic bacteria (ESB) have important effects on their hosts, contributing to its growth, reproduction and biological functions. Although the effects of exogenous bacteria on the trap formation of nematode-trapping fungi (NTF) have been revealed ...
Hua Zheng   +9 more
doaj   +1 more source

Evolution of small prokaryotic genomes

open access: yesFrontiers in Microbiology, 2015
As revealed by genome sequencing, the biology of prokaryotes with reduced genomes is strikingly diverse. These include free-living prokaryotes with ~800 genes as well as endosymbiotic bacteria with as few as ~140 genes.
David José Martínez-Cano   +6 more
doaj   +1 more source

Paulinella chromatophora – rethinking the transition from endosymbiont to organelle

open access: yesActa Societatis Botanicorum Poloniae, 2014
Eukaryotes co-opted photosynthetic carbon fixation from prokaryotes by engulfing a cyanobacterium and stably integrating it as a photosynthetic organelle (plastid) in a process known as primary endosymbiosis.
Eva C.M. Nowack
doaj   +1 more source

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