Results 81 to 90 of about 7,908 (209)

Infection with the Endonuclear Symbiotic Bacterium Holospora obtusa Reversibly Alters Surface Antigen Expression of the Host Paramecium caudatum

Microorganisms
It is known that the ciliate Paramecium cell surface including cilia is completely covered by high-molecular-mass GPI-anchored proteins named surface antigens (SAgs). However, their functions are not well understood.
Masahiro Fujishima
doaj   +1 more source

Diversity in biosynthetic pathways of galactolipids in the light of endosymbiotic origin of chloroplasts

Frontiers in Plant Science, 2016
Cyanobacteria and chloroplasts perform oxygenic photosynthesis, and share a common origin. Galactolipids are present in the photosynthetic membranes of both cyanobacteria and chloroplasts, but the biosynthetic pathways of the galactolipids are ...
Naoki eSato, Naoki eSato, Koichiro eAwai, Koichiro eAwai   +3 more
doaj   +1 more source

Symbiogenesis: Beyond the endosymbiosis theory?

Journal of Theoretical Biology, 2017
Symbiogenesis, literally 'becoming by living together', refers to the crucial role of symbiosis in major evolutionary innovations. The term usually is reserved for the major transition to eukaryotes and to photosynthesising eukaryotic algae and plants by endosymbiosis.
Aanen, Duur K., Eggleton, Paul
openaire   +2 more sources

A potential cyanobacterial ancestor of Viridiplantae chloroplasts

, 2011
The theory envisaging the origin of plastids from endosymbiotic cyanobacteria is well-established but it is difficult to explain the evolution (spread) of plastids in phylogenetically diverse plant groups.
Sabyasachi Bhattacharya, Prosenjit Pyne, Jaideb Chatterjee, Masrure Alam, Prabir Haldar, Wriddhiman Ghosh   +5 more
core  

Single cell genome analysis supports a link between phagotrophy and primary plastid endosymbiosis [PDF]

, 2012
Two cases of primary plastid endosymbiosis are known. The first occurred ca. 1.6 billion years ago and putatively gave rise to the canonical plastid in algae and plants.
Price, Dana C, Yang, Eun Chan, Andersen, Robert A, Yoon, Hwan Su, Poulton, Nicole J, Das, Sushma Parankush, Bhattacharya, Debashish   +6 more
core   +1 more source

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

Applied 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, Terry Uhm, Jordan Bowen, Patricia Fiedorek, Mackenzie Hoogshagen, Tamara S. Haselkorn, Susanne DiSalvo   +6 more
doaj   +1 more source

Metabolic pathway redundancy within the apicomplexan-dinoflagellate radiation argues against an ancient chromalveolate plastid

Communicative & Integrative Biology, 2016
The chromalveolate hypothesis presents an attractively simple explanation for the presence of red algal-derived secondary plastids in 5 major eukaryotic lineages: “chromista” phyla, cryptophytes, haptophytes and ochrophytes; and alveolate phyla ...
Ross F. Waller, Sebastian G. Gornik, Ludek Koreny, Arnab Pain   +3 more
doaj   +1 more source

Molecular evidence for ongoing complementarity and horizontal gene transfer in endosymbiotic systems of mealybugs

Frontiers in Microbiology, 2014
Intracellular bacterial supply of essential amino acids is common among sap-feeding insects, thus complementing the scarcity of nitrogenous compounds in plant phloem. This is also the role of the two mealybug endosymbiotic systems whose genomes have been
Sergio eLópez-Madrigal, Aleixandre eBeltrà, Serena eResurrección, Antonia eSoto, Amparo eLatorre, Amparo eLatorre, Andres eMoya, Andres eMoya, Rosario eGil   +8 more
doaj   +1 more source

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

mBio, 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, Sandra Calderon Copete, Fanny Schüpfer, Gonzalo Garcia-Arraez, Bruno Lemaitre   +4 more
doaj   +1 more source

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

Frontiers 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, Teodoro Coba de la Peña, Elena Fedorova, Elena Fedorova, José J. Pueyo, M. Mercedes Lucas   +5 more
doaj   +1 more source