Results 61 to 70 of about 2,158,587 (221)
The heterocysts present in filamentous cyanobacteria such as Anabaena sp. PCC 7120 are known to be regulated by HetN and PatS, the repressors of heterocyst differentiation; therefore, the inactivation of these proteins will result in the formation of ...
Heli Siti Halimatul Munawaroh +5 more
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Nitrogen Fixation Mutants of the Actinobacterium Frankia Casuarinae CcI3 [PDF]
Frankia is a representative genus of nitrogen-fixing (N2-fixing) actinobacteria; however, the molecular mechanisms underlying various phenomena such as the differentiation of a N2 fixation-specific structure (vesicle) and the regulation of N2 fixation ...
Kucho, Ken-ichi +4 more
core +2 more sources
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
Identification of ferredoxin II as a major calcium binding protein in the nitrogen-fixing symbiotic bacterium Mesorhizobium loti [PDF]
BACKGROUND: Legumes establish with rhizobial bacteria a nitrogen-fixing symbiosis which is of the utmost importance for both plant nutrition and a sustainable agriculture.
Damiani, Ernesto +6 more
core +1 more source
Heterocyst Differentiation in Cylindrospermum licheniforme: Studies on the Role of Transcription [PDF]
Heterocysts of the cyanobacterium Cylindrospermum licheniforme occur at the ends of the filaments. These cells, specialized for aerobic N2 fixation, synchronously differentiate after the fragmentation of filaments grown in a medium free of combined nitrogen.
S, Van de Water, R D, Simon
openaire +3 more sources
Background Filamentous cyanobacteria represent model organisms for investigating multicellularity. For many species, nitrogen-fixing heterocysts are formed from photosynthetic vegetative cells under nitrogen limitation.
Julia Walter +3 more
doaj +1 more source
Dynamics and Cell-Type Specificity of the DNA Double-Strand Break Repair Protein RecN in the Developmental Cyanobacterium Anabaena sp. Strain PCC 7120. [PDF]
DNA replication and repair are two fundamental processes required in life proliferation and cellular defense and some common proteins are involved in both processes. The filamentous cyanobacterium Anabaena sp.
Sheng Hu +4 more
doaj +1 more source
ZipN is an essential FtsZ membrane tether and contributes to the septal localization of SepJ in the flamentous cyanobacterium Anabaena [PDF]
The organismic unit of heterocyst-forming cyanobacteria is a filament of communicating cells connected by septal junctions, proteinaceous structures bridging the cytoplasms of contiguous cells.
Arévalo, Sergio +5 more
core +2 more sources
Differential near-infrared imaging of heterocysts using single-walled carbon nanotubes
AbstractThe internalization of near-infrared (NIR) optical nanoprobes in photosynthetic microbes can be exploited for applications ranging from energy conversion to biomolecule delivery. However, the intrinsic, species-dependent properties of microbial cell walls, including their surface charge density, composition, thickness, and elasticity, can ...
Antonucci, Alessandra +5 more
openaire +2 more sources
Local activation and long-range inhibition are mechanisms conserved in self-organizing systems leading to biological patterns. A number of them involve the production by the developing cell of an inhibitory morphogen, but how this cell becomes immune to ...
Xiaomei Xu +5 more
doaj +1 more source

