Results 181 to 190 of about 138,443 (212)
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Pharmaceutical agents from filamentous marine cyanobacteria
Drug Discovery Today, 2013Filamentous marine cyanobacteria have emerged as an important source of novel lead compounds for drug discovery and development. The majority of these molecules are nitrogen-containing, belonging to the hybrid polyketide-polypeptide structural class. Owing to their specific interactions with cellular targets, several marine cyanobacterial compounds are
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A digitising tablet for determining the length distribution of filamentous cyanobacteria
European Journal of Phycology, 1993A drawing prism and a digitising tablet were used in conjunction with a computer to measure length of cyanobacterial filaments. The measurements were more accurate and four times faster than using an eyepiece micrometer. The computer program LENGTH allows measurement of straight and curved filaments, statistical analysis and the drawing of a histogram,
Hoogveld, H.L., Moed, J.R.
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Undirected motility of filamentous cyanobacteria produces reticulate mats
Geobiology, 2010AbstractThe roles of biology in the morphogenesis of microbial mats and stromatolites remain enigmatic due to the vast array of physical and chemical influences on morphology. However, certain microbial behaviors produce complex morphological features that can be directly attributed to motility patterns.
R N, Shepard, D Y, Sumner
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An evolutionary spline fitting algorithm for identifying filamentous cyanobacteria
Proceedings of the 28th Annual ACM Symposium on Applied Computing, 2013Bright field cellular microscopy is a simple and non-invasive method for capturing cytological images. However, the resulting micrographs prove challenging for image segmentation, especially with samples that have tightly clustered or overlapping cells.
Jeremy Porter, Dirk V. Arnold
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Compartmentalized function through cell differentiation in filamentous cyanobacteria
Nature Reviews Microbiology, 2009Within the wide biodiversity that is found in the bacterial world, Cyanobacteria represents a unique phylogenetic group that is responsible for a key metabolic process in the biosphere - oxygenic photosynthesis - and that includes representatives exhibiting complex morphologies.
Enrique Flores +2 more
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Self-Organization of Filamentous Cyanobacteria
Cyanobacteria are phototrophic prokaryotes that occur in almost any natural habitat on Earth, from polar to tropical climates, from the Archaean to the present. Roughly 2.5 billion years ago, they have generated the atmospheric oxygen on which animal life is based, still contributing significantly to the global fixation of nitrogen and atmospheric ...Kurjahn, Maximilian +5 more
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Miniprep DNA isolation from unicellular and filamentous cyanobacteria
Journal of Microbiological Methods, 2000A rapid miniprep method for isolation of DNA from 12 strains of cyanobacteria belonging to groups I, III, IV and V is described. The protocol is a modification of the methods of Boyle and Lew [Boyle, J.S., Lew, A.M., 1995. An inexpensive alternative to glassmilk for DNA purification. Trends Genet.
M F, Fiore +4 more
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[Phagoresistance of filamentous cyanobacteria clones].
Mikrobiolohichnyi zhurnal (Kiev, Ukraine : 1993), 2004The paper deals with formation regularities of phagoresistant clones of cyanobacteria in two productive virus-cell systems: heterocyst cyanobacterium Nostoc linckia--cyanophage N-2, and mutant in heterocysts strain of Anabaena variabilis--cyanophage A-1. Frequency of spontaneous formation of phagoresistant clones of cyanobacterium N.
M I, Mendzhul +3 more
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Grazing on filamentous cyanobacteria by Daphnia pulicaria
Limnology and Oceanography, 1996I conducted short‐term grazer‐gradient experiments to assess direct mortality effects of Daphnia pulicaria on phytoplankton species in natural lake phytoplankton assemblages that contained 20–80% filamentous cyanobacteria by biovolume. Filamentous cyanobacteria often interfere with feeding by large cladoceran zooplankton such as D.
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Collective Behaviour of Filamentous Cyanobacteria
Cyanobacteria are the oldest phototrophic organisms on the planet. Having been responsible for the “Great Oxidation Event” millions of years ago, it has enabled the development and sustenance of multi-cellular life forms, as we witness it today. Today they are abundant in many eco-systems, forming dense suspended colonies or mats which sometimes poses ...Deka, Antaran Kumar +5 more
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