Results 21 to 30 of about 9,083 (166)

Photophobotaxis of single‐celled and filamentous cyanobacteria

Photochemistry and Photobiology, EarlyView.
LED illumination from below induces central accumulation of cyanobacterial species. Abstract Phototaxis refers to an organism's movement toward a light source, while photophobotaxis involves movement into illuminated regions. Although phototaxis in cyanobacteria has been widely studied, photophobotaxis has been investigated in only a few species.
Maria Sinetova, Nina Spohrer, David Gabrielyan, Luke Lehmann, Julian Breinich, Dmitry Los, Tilman Lamparter   +6 more
wiley   +3 more sources

Motility in Filamentous Cyanobacteria

Annual Review of Microbiology
Filamentous cyanobacteria are multicellular organisms that perform oxygenic photosynthesis and frequently exhibit surface motility. This review discusses the underlying mechanism facilitating motility in these organisms, with a focus on recent molecular and genetic studies.
Douglas D Risser
exaly   +3 more sources

Topological transition in filamentous cyanobacteria: from motion to structure. [PDF]

Commun Phys
AbstractMany active systems are capable of forming intriguing patterns at scales significantly larger than the size of their individual constituents. Cyanobacteria are one of the most ancient and important phyla of organisms that has allowed the evolution of more complex life forms.
Cammann J, Faluweki MK, Dambacher N, Goehring L, Mazza MG.   +4 more
europepmc   +5 more sources

Evolution of multicellularity genes in Cyanobacteria in the lead up to the great oxidation event [PDF]

Communications Biology
Cyanobacteria, considered responsible for the Great Oxidation Event (GOE) that shaped the Earth for the evolution of complex life, are among the most morphologically diverse prokaryotic phyla.
Joanne S. Boden, Mercedes Nieves-Morión, Dennis Nürnberg, Sergio Arévalo, Enrique Flores, Patricia Sánchez-Baracaldo   +5 more
doaj   +2 more sources

Mechanical Reinforcement of Paper Biocomposites Using Filamentous Cyanobacteria. [PDF]

ACS Sustain Chem Eng
Rising concerns over plastic packaging and the growing demand for e-commerce have increased paper-based materials production, thereby intensifying environmental impacts of the paper industry, one of the most polluting industries worldwide. The need to source nonwood fibers to alleviate environmental pressure has brought microalgae into the spotlight as
Serrano-Blanco S, Melo P, Harvey AP, Velasquez-Orta SB.   +3 more
europepmc   +3 more sources

A new family of bacterial actin-like proteins regulates cell morphology in a filamentous cyanobacterium [PDF]

mSphere
Actin proteins are common to all domains of life and exhibit ATP-dependent polymerization to form filaments. In bacteria, four families of bacterial actin-like proteins (BALPs) have been identified and characterized.
Alicia Nguyen, Garrett M. Jenkins, Peyton D. Brones, Gabriel A. Parrett, Guy M. Hagen, Jeremy M. Bono, Douglas D. Risser   +6 more
doaj   +2 more sources

Cellular differentiation and the NtcA transcription factor in filamentous cyanobacteria [PDF]

FEMS Microbiology Reviews, 2004
Some filamentous cyanobacteria can undergo a variety of cellular differentiation processes that permit their better adaptation to certain environmental conditions. These processes include the differentiation of hormogonia, short filaments aimed at the dispersal of the organism in the environment, of akinetes, cells resistant to various stress ...
Antonia Herrero, Alicia M Muro-Pastor, Ana Valladares   +2 more
exaly   +3 more sources

The Identification of Filamentous Cyanobacteria Isolated from Neopyropia Germplasm Bank Illustrates the Pattern of Contamination

Journal of Marine Science and Engineering, 2022
The germplasm bank of economic algae provides biological insurance against environmental changes and pressures for the cultivation industry. However, the red algal free-living conchocelis germplasm of Neopyropia was easily contaminated with filamentous ...
Yinyin Deng, Cuicui Tian, Chuanming Hu, Guangping Xu, Lien Yang, Qinqin Lu, Wei Zhou   +6 more
doaj   +1 more source

First Application of IFCB High-Frequency Imaging-in-Flow Cytometry to Investigate Bloom-Forming Filamentous Cyanobacteria in the Baltic Sea

Frontiers in Marine Science, 2021
Cyanobacteria are an important part of phytoplankton communities, however, they are also known for forming massive blooms with potentially deleterious effects on recreational use, human and animal health, and ecosystem functioning.
Kaisa Kraft, Jukka Seppälä, Heidi Hällfors, Sanna Suikkanen, Pasi Ylöstalo, Sílvia Anglès, Sami Kielosto, Harri Kuosa, Lauri Laakso, Lauri Laakso, Martti Honkanen, Sirpa Lehtinen, Johanna Oja, Timo Tamminen   +13 more
doaj   +1 more source

A new threat to local marine biodiversity: filamentous mats proliferating at mesophotic depths off Rapa Nui [PDF]

PeerJ, 2021
Mesophotic and deeper habitats (∼40 to 350 m in depth) around Rapa Nui (Easter Island) were investigated using a remotely operated vehicle. We observed extensive fields of filamentous cyanobacteria-like mats covering sandy substrates and mostly dead ...
Javier Sellanes, Matthias Gorny, Germán Zapata-Hernández, Gonzalo Alvarez, Praxedes Muñoz, Fadia Tala   +5 more
doaj   +2 more sources