Results 31 to 40 of about 23,202 (197)

Cyanobacterial type I CRISPR-Cas systems: distribution, mechanisms, and genome editing applications

Frontiers in Bioengineering and Biotechnology
Cyanobacteria, renowned for their photosynthetic capabilities, serve as efficient microbial chassis capable of converting carbon dioxide into a spectrum of bio-chemicals. However, conventional genetic manipulation strategies have proven incompatible with
Yongjiu Zhang, Shuxiao Yang, Xianliang Zheng, Xianliang Zheng, Xianliang Zheng, Xiaoming Tan   +5 more
doaj   +1 more source

Sacrolide A, a new antimicrobial and cytotoxic oxylipin macrolide from the edible cyanobacterium Aphanothece sacrum

Beilstein Journal of Organic Chemistry, 2014
Macroscopic gelatinous colonies of freshwater cyanobacterium Aphanothece sacrum, a luxury ingredient for Japanese cuisine, were found to contain a new oxylipin-derived macrolide, sacrolide A (1), as an antimicrobial component.
Naoya Oku, Miyako Matsumoto, Kohsuke Yonejima, Keijiroh Tansei, Yasuhiro Igarashi   +4 more
doaj   +1 more source

Production of the Neurotoxin BMAA by a Marine Cyanobacterium [PDF]

Marine Drugs, 2007
Diverse species of cyanobacteria have recently been discovered to produce theneurotoxic non-protein amino acid β-methylamino-L-alanine (BMAA). In Guam, BMAAhas been studied as a possible environmental toxin in the diets of indigenous Chamorropeople known to have high levels of Amyotrophic Lateral Sclerosis/ ParkinsonismDementia Complex (ALS/PDC).
Banack, Sandra Anne, Johnson, Holly E., Cheng, Ran, Cox, Paul Alan   +3 more
openaire   +3 more sources

Toxic concentrations of metronidazole to Microcystis protocystis

Brazilian Journal of Biology
Antimicrobials are among the most commonly used drugs and have become a class of contaminants with great environmental importance. Metronidazole is an antimicrobial used for the therapeutic management of several human diseases.
SMS Magalhães, CM Brêtas, JM Brêtas, GA Pianetti, MW Franco, FAR Barbosa   +5 more
doaj   +1 more source

Health aspects of Spirulina (Arthrospira) microalga food supplement [PDF]

Journal of the Serbian Chemical Society, 2013
Spirulina, now named Arthrospira, is a microscopic and filamentous cyanobacterium that has a long history of use as a safe food lacking toxicity. It is commercially produced in large outdoor ponds under controlled conditions.
Sotiroudis Theodore G., Sotiroudis Georgios T.   +1 more
doaj   +1 more source

Colony formation in the cyanobacterium Microcystis [PDF]

Biological Reviews, 2018
ABSTRACTMorphological evolution from a unicellular to multicellular state provides greater opportunities for organisms to attain larger and more complex living forms. As the most common freshwater cyanobacterial genus, Microcystis is a unicellular microorganism, with high phenotypic plasticity, which forms colonies and blooms in lakes and reservoirs ...
Man Xiao, Ming Li, Colin S. Reynolds
openaire   +3 more sources

Chromosomal transformation in the cyanobacterium Agmenellum quadruplicatum [PDF]

Journal of Bacteriology, 1990
Chromosomal transformation of Agmenellum quadruplicatum PR-6 (= Synechococcus sp. strain 7002) was characterized for phenotypic expression, for exposure time to DNA, and for dependence on DNA concentration with regard to Rifr donor DNA. Exponentially growing cells of PR-6 were competent for chromosomal transformation.
E, Essich, S E, Stevens, R D, Porter
openaire   +2 more sources

A Wagner–Meerwein‐Like Rearrangement Generates a Vinyl Group in the Biosynthesis of the Polychlorinated Lipopeptides Fischerazoles

Angewandte Chemie International Edition, EarlyView.
The fischerazoles, unusual cyanobacterial chlorinated lipopeptides are reported. During their biosynthesis, a linear fatty acyl‐acyl carrier protein (ACP) precursor is rearranged through the action of the S‐adenosyl‐methionine (SAM)‐dependent methyltransferase FshF, to generate a pendant vinyl group.
Sandra A. C. Figueiredo, Kathleen Abt, Konrad Viehrig, Peter J. Jervis, Teresa P. Martins, Iñaki Lacomba, Chuhan Li, Daniele Castagnolo, Pedro N. Leão   +8 more
wiley   +1 more source

The effect of continuous illumination and photoperiods on growth and heterocyst frequency of cyanobacterium Fischerella ambigua from Golestan province [PDF]

فیزیولوژی محیطی گیاهی, 2006
The effect of limited continuous irradiance and photoperiods on survival, growth and heterocyst frequencies of cyanobacterium Fischerella ambigua collected from paddy-fields of Golestan province have been studied at laboratory condition.
Fereshte Vakili, Kayvan Ghorchibeigi, Neda Soltani, Shadman Shokravi   +3 more
doaj   +1 more source

Performance Assessment and Lab‐Scale Economic Evaluation of Alkaline Extraction and Comparative Precipitation of Cyanobacterial Proteins

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Algal proteins from cyanobacteria serve as a natural source of biopolymers. The principal challenge manifests as nonoptimization of unit operations in downstream process accounting for higher costs. This study focuses on process assessment of unit‐operations for selecting suitable recovery strategies not only based on yield, but also considers
Neha Goel, Ariz Hussain, Poonam Choudhary   +2 more
wiley   +1 more source