Hormogonium Development and Motility in Filamentous Cyanobacteria
Filamentous cyanobacteria exhibit some of the greatest developmental complexity observed in the prokaryotic domain. This includes the ability to differentiate nitrogen-fixing cells known as heterocysts, spore-like akinetes, and hormogonia, which are specialized motile filaments capable of gliding on...
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| Veröffentlicht in: | Applied and environmental microbiology 2023-06, Vol.89 (6), p.e0039223-e0039223 |
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| container_title | Applied and environmental microbiology |
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| creator | Risser, Douglas D |
| description | Filamentous cyanobacteria exhibit some of the greatest developmental complexity observed in the prokaryotic domain. This includes the ability to differentiate nitrogen-fixing cells known as heterocysts, spore-like akinetes, and hormogonia, which are specialized motile filaments capable of gliding on solid surfaces. Hormogonia and motility play critical roles in several aspects of the biology of filamentous cyanobacteria, including dispersal, phototaxis, the formation of supracellular structures, and the establishment of nitrogen-fixing symbioses with plants. While heterocyst development has been investigated extensively at the molecular level, much less is known about akinete or hormogonium development and motility. This is due, in part, to the loss of developmental complexity during prolonged laboratory culture in commonly employed model filamentous cyanobacteria. In this review, recent progress in understanding the molecular level regulation of hormogonium development and motility in filamentous cyanobacteria is discussed, with a focus on experiments performed using the genetically tractable model filamentous cyanobacterium Nostoc punctiforme, which retains the developmental complexity of field isolates. |
| doi_str_mv | 10.1128/aem.00392-23 |
| format | Article |
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This includes the ability to differentiate nitrogen-fixing cells known as heterocysts, spore-like akinetes, and hormogonia, which are specialized motile filaments capable of gliding on solid surfaces. Hormogonia and motility play critical roles in several aspects of the biology of filamentous cyanobacteria, including dispersal, phototaxis, the formation of supracellular structures, and the establishment of nitrogen-fixing symbioses with plants. While heterocyst development has been investigated extensively at the molecular level, much less is known about akinete or hormogonium development and motility. This is due, in part, to the loss of developmental complexity during prolonged laboratory culture in commonly employed model filamentous cyanobacteria. 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This includes the ability to differentiate nitrogen-fixing cells known as heterocysts, spore-like akinetes, and hormogonia, which are specialized motile filaments capable of gliding on solid surfaces. Hormogonia and motility play critical roles in several aspects of the biology of filamentous cyanobacteria, including dispersal, phototaxis, the formation of supracellular structures, and the establishment of nitrogen-fixing symbioses with plants. While heterocyst development has been investigated extensively at the molecular level, much less is known about akinete or hormogonium development and motility. This is due, in part, to the loss of developmental complexity during prolonged laboratory culture in commonly employed model filamentous cyanobacteria. In this review, recent progress in understanding the molecular level regulation of hormogonium development and motility in filamentous cyanobacteria is discussed, with a focus on experiments performed using the genetically tractable model filamentous cyanobacterium Nostoc punctiforme, which retains the developmental complexity of field isolates.</description><subject>Akinetes</subject><subject>Bacterial Proteins - genetics</subject><subject>Bacteriology</subject><subject>Cell culture</subject><subject>Cell differentiation</subject><subject>Complexity</subject><subject>Cyanobacteria</subject><subject>Dispersal</subject><subject>Filaments</subject><subject>Fimbriae, Bacterial - metabolism</subject><subject>Gene Expression Regulation, Bacterial</subject><subject>Gliding</subject><subject>Heterocysts</subject><subject>Hormogonia</subject><subject>Laboratory culture</subject><subject>Lichens</subject><subject>Minireview</subject><subject>Motility</subject><subject>Nitrogen</subject><subject>Nitrogen fixation</subject><subject>Nitrogenation</subject><subject>Nostoc</subject><subject>Nostoc - 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genetics</topic><topic>Bacteriology</topic><topic>Cell culture</topic><topic>Cell differentiation</topic><topic>Complexity</topic><topic>Cyanobacteria</topic><topic>Dispersal</topic><topic>Filaments</topic><topic>Fimbriae, Bacterial - metabolism</topic><topic>Gene Expression Regulation, Bacterial</topic><topic>Gliding</topic><topic>Heterocysts</topic><topic>Hormogonia</topic><topic>Laboratory culture</topic><topic>Lichens</topic><topic>Minireview</topic><topic>Motility</topic><topic>Nitrogen</topic><topic>Nitrogen fixation</topic><topic>Nitrogenation</topic><topic>Nostoc</topic><topic>Nostoc - metabolism</topic><topic>Phototaxis</topic><topic>Solid surfaces</topic><topic>Symbiosis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Risser, Douglas D</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Biotechnology Research Abstracts</collection><collection>Ecology Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Environment Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Nucleic Acids Abstracts</collection><collection>Virology and AIDS Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</collection><collection>Environment Abstracts</collection><collection>MEDLINE - 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| source | American Society for Microbiology; MEDLINE; PubMed Central; Alma/SFX Local Collection |
| subjects | Akinetes Bacterial Proteins - genetics Bacteriology Cell culture Cell differentiation Complexity Cyanobacteria Dispersal Filaments Fimbriae, Bacterial - metabolism Gene Expression Regulation, Bacterial Gliding Heterocysts Hormogonia Laboratory culture Lichens Minireview Motility Nitrogen Nitrogen fixation Nitrogenation Nostoc Nostoc - metabolism Phototaxis Solid surfaces Symbiosis |
| title | Hormogonium Development and Motility in Filamentous Cyanobacteria |
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