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Unicellular in Medical News

Fish health claims may cause more environmental harm than good: UBC-St. Michael's researchers

...o Faculty of Medicine's Department of Nutritional Sciences. "Further, if we decide that fish oil supplementation is necessary for good health, then unicellular sources of 'fish oil' like algae, yeasts, etc, should now be used, as they are in infant formula," adds Dr. Jenkins. While many studies show health...

Climate change reduces nutritional value of algae

...her an increased CO2 concentration exerted an influence on underwater life. They therefore examined freshwater micro-algae: small, floating and mostly unicellular algae. The experiments were performed in large tanks called limnotrons. These were aerated with ordinary air or with air containing an elevated concen...

Yeast gives rise to new concept: cell fuel is 'brains' behind division

...only used in breads, wine and beer making because many of the yeast cells processes are similar to those in human cells, according to Bryk. From unicellular yeast to complex mammals, the process is the same, Bryk said. The job of a cell is to divide and grow. Metabolism takes in food and turns it into fuel...

New peptide communication factor enabling bacteria to 'talk to each other' discovered

...eir death could have significant consequences leading to development of a new class of antibiotic medications. Bacteria are traditionally considered unicellular organisms. However, increasing experimental evidence indicates that bacteria seldom behave as isolated organisms. Instead, they are members of a commu...

Story ideas from molecular & cellular proteomics

...s.edu.sg or dbshead@nus.edu.sg How some algae tolerate very salty environments Researchers have identified unique proteins that allow a unicellular alga called Dunaliella salina to proliferate in environments with extreme salt content. These results might provide ways to help crop plants resist th...

Experiments In Outer Space To Determine single Cell Survival

...Far above the heads of Earthlings, nanostructures of single-cell creatures are encircling Earth.// These nanostructures, harboring yeast or other unicellular organisms are riding on the International Space Station, to test if they can secure safer homes for their occupants amidst the vacuum and radiations o...
Unicellular in Medical Dictionary

Pneumocystis Carinii

...agnoses & Workup: Pneumocystis ( carinii ) jiroveci Pneumonia ... Imaging: Pneumocystis cariniipneumonia (PCP) is caused by the ubiquitous unicellular eukaryote, P carinii . This organism is a rare cause of infection in the general ... Up-to-the-minute news coverage of national, regional and i...

Irritability

... Irritability is an excessive response to stimuli. Irritability takes many forms, from the contraction of a unicellular organism when touched, to complex reactions involving all the senses of higher animals. In plants, response is usually different from that seen in ani...

Bacterial

... The bacteria are a large group of unicellular microorganisms. Typically a few micrometres in length, bacteria have a wide range of shapes, ranging from spheres to rods and spirals. Bacteria are ...

Bacteria

...nd nucleus and other internal structures and are therefore ranked among the unicellular life-forms called prokaryotes. Prokaryotes are the... The human flora i...and Printout. ... Bacteria are microscopic (very tiny) organisms that are unicellular (made up of a single cell) ... Information about the Kingdom Bacteria ...
Unicellular in Biological News

Genome of marine organism tells of humans' unicellular ancestors

Berkeley -- The newly sequenced genome of a one-celled, planktonic marine organism, reported today (Thursday, Feb. 14) in the journal Nature, is already telling scientists about the evolutionary changes that accompanied the jump from one-celled life forms to multicellular animals like ourselves. ...

Life on Earth came from other planets

...on earth must have originated on other planets. But then, how did it get here? Most scientists believe all Earthly life descended from the first unicellular creatures that appeared on this planet. Based on an extensive and detailed analysis and synthesis of over 100 research reports published in prestigiou...

Surviving mass extinction by leading a double life

... Drifting across the world's oceans are a group of unicellular marine microorganisms that are not only a crucial source of food for other marine life but their fossils, which are found in abundance, provide scien...

Lohafex provides new insights on plankton ecology

...ier ocean iron fertilization experiments. The larger blooms stimulated by earlier experiments were due to a group of algae known as diatoms. These unicellular algae are protected against grazers by shells made of glass (silica) and are known to sink to great depths after blooming. Diatoms could not grow in t...

How Volvox got its groove

...s evolved from single cells. Cooperating successfully is the key, Herron said. "All the macroscopic organisms we see around us trace back to unicellular ancestors," said Herron, a doctoral candidate in the UA's department of ecology and evolutionary biology. "Each of those groups had to go through a tr...

LOHAFEX: An Indo-German iron fertilization experiment

...cation, after which a patch of 300 square kilometres will be fertilized with six tons of dissolved iron. This will lead to rapid growth of the minute, unicellular algae known as phytoplankton. These algae do not only provide the food sustaining oceanic life, but also play a key role in regulating concentrations ...

Voracious sponges save reef

...their filtration cells and discard their old cells. This short cell cycle is unique for multicellular organisms and to date was only known to occur in unicellular organisms. The production and breakdown process of the sponge cells mirrors that in the human intestinal tract. Eating and being eaten Coal ree...

Engineering algae to make fuel instead of sugar

... WASHINGTON, Dec. 17 - In pursuing cleaner energy there is such a thing as being too green. unicellular microalgae, for instance, can be considered too green. In a paper in a special energy issue of Optics Express , the Optical Society's (OSA) open-acce...

Proteins strangle cell during division

... hot springs in Yellowstone National Park. The organism is a member of the third main group of life on earth, the Archaea. Archaea, like bacteria, are unicellular organisms but in terms of evolution they are more closely related to another main group of living things, the eukaryotes (humans, animals, plants, fun...

Researchers discover architecture for fundamental processes of life

...dian genomics pioneer Prof. Howard Bussey and Prof. Jackie Vogel. Our team systematically analyzed the interactions of proteins of bakers yeast, a unicellular organism confirmed to provide insight into fundamental processes shared by most living cells including those of humans, explained Prof. Michnick. ...
Unicellular in Biological Technology

FERMENTATION BASICS

...inant strain. See Table 2. 2.1. Classification of microorganisms The kingdom Protista comprises unicellular organisms capable of self duplication or of directing their own replication. Prokaryotes do not possess a true nucleus or a nuclear membrane, wher...

Preparative Nondenaturing Gel Electrophoresis to Purify NADP-Specific Glutamate Dehydrogenase From Chlorella, Rev B

... the pre- and posttranslational mechanisms that regulate both carbon and nitrogen metabolism in plants. Chlorella sorokiniana, a unicellular green alga, has been used extensively as a model system to study enzymes involved in higher plant metabolism. Research in this l...

Yeast Protein Production System Features High Yields and One-Step Purification

...ryotic organism. Stratagene's ESP yeast protein expression and purification system has been created to meet this demand. The yeast S. pombe is a unicellular eukaryotic organism, with properties that closely resemble higher eukaryotic organisms regarding chromosome structure and function, cell cycle con...
Unicellular in Biological Definition

Alga

...otosynthetic. Some retain plastids, but not chloroplasts, while others have lost them entirely. Forms of algae Most of the simpler algae are unicellular flagellates or amoeboids , but colonial and non-motile forms have developed independently among several of the groups. Some of the more common org...

Biology

...condition, by means of multiple dynamic equilibrium adjustments controlled by interrelated regulation mechanisms. All living organisms , whether unicellular or multicellular exhibit homeostasis. Homeostasis can manifest itself at the cellular level through the maintenance of a stable internal acidity (...

Cell division

...to two daughter cells . This leads to growth in multicellular organisms (the growth of tissue ) and to procreation ( vegetative reproduction ) in unicellular organisms . Prokaryotic cells divide by binary fission . Eukaryotic cells usually undergo a process of nuclear division, called mitosis , fol...

Cell growth

...ain plant hormones the cell wall can be remodeled, allowing for increases in cell size that are important for the growth of some plant tissues. Most unicellular organisms are microscopic in size, but there are some giant bacteria and protozoa that are visible to the naked eye. See: Table of cell sizes -...

Morphogenesis

... antennae. See images of this "antennapedia" mutant and others, at FlyBase . The term morphogenesis can also be used to describe the development of unicellular life forms that do not have an embryonic stage in their life cycle, or to refer to the evolution of a body structure within a taxonomic group . Mor...

Experimental evolution

...ution One of the first to carry out a controlled evolution experiment was William Dallinger . In the late 19th century , he cultivated small unicellular organisms in a custom-build incubator over a time period of seven years ( 1880 - 1886 ). Dallinger slowly increased the temperature of the incubator ...

Flagellum

... A flagellum (plural, flagella) is a whip-like organelle that many unicellular organisms, and some multicellular ones, use to move about. They may also be involved in other processes. The name actually covers three different st...

Fungus

...e divided into two basic morphological forms, yeasts and hyphae. Yeasts are unicellular fungi which reproduce asexually by blastoconidia formation (budding) or fis...ucleate sporangia . A few other fungi have reverted from a mycelial to a unicellular organization. These are the yeasts , which belong among the ascomycetes, a...

Microbiology

...itions; ~30 minutes for E. coli , but 12 to 24 hours for Mycobacterium tuberculosis ) Cells can easily survive in isolation from other cells unicellular eukaryotes reproduce by mitotic division and prokaryotes by binary fission . This allows for the propagation of genetically identical ( clonal...

Microorganism

... it is microscopic (invisible to the naked eye). Microorganisms are often illustrated using single- celled , or unicellular, organisms; however, some unicellular protists are visible to the naked eye, and some multicellular species are microscopic. The study of microorganisms is called microbiology . Micro...
Unicellular in Biological Dictionary

Unicellular

Of eukaryotic groups, the protists are most commonly unicellular and microscopic. ... The fungi have several unicellular species, such as baker's yeast (Saccharomyces ... Yeasts are eukaryotic microorganisms classified in the kingdom Fungi, with about 1,500 species currently de...

Slime molds

... ... Slime molds were originally represented by the subkingdom Gymnomycota in the ... syncytial or plasmodial slime molds . Dictyosteliida: unicellular slime molds . ... slime molds , cellular slime molds , cellular slime mold ... Slime molds have complex life cycles that may be d...

Rhizopoda

... Amoeboids are unicellular life-forms characterized by their ... The phylum Rhizopoda has naked and ... vary in rhizopoda . Some consume bacteria. ... Rhizopoda ...

Protozoa

... Article from Wikipedia on the unicellular microbes that are traditionally classified as protozoans , based on their methods of locomotion. protozoan also protozoon ( ) n. , pl. -zoans o...

Protista

...: Definition from Answers.com ... " Protista ," Microsoft® Encarta® ... Protista ( prə′tistə ) ( biology ) A proposed kingdom to include all unicellular organisms lacking a definite cellular arrangement, such as bacteria, protist n. Any of a group of eukaryotic organisms belonging to the kingdom ...

Protist cell

...S Home Course Navigator Protist navigator Previous Page ... Also, unlike plants Euglena does not have a cellulose cell wall. ... CELL TYPE. unicellular or multicellular. ATTRIBUTES. Many are animal-like or plant-like ... Paramecium, euglena, diatoms, golden algae, dinoflagellates, green ... The nam...

Protist

...m Protista, a group of eukaryotic, predominantly unicellular microscopic organisms. They may share certain mor...nd of the 4th... Article from Wikipedia on the unicellular microbes that are traditionally ... to refer to a unicellular heterotrophic protist , such as an amoeba ...

Prokaryote

...ot have a cell nucleus. They also lack other things eukaryotes have. Prokaryotes do not have membranes inside the cell.... Prokaryotes are unicellular (in rare cases, multicellular) organisms without a nucleus. The name prokaryote comes from the Greek pros meaning before and karyon ... The stru...

Prokaryotes

...Eukaryotes ... Prokaryote , relatively simple unicellular organism, such as a bacterium, characterized by t...otes is ... Prokaryotes are fully functionally unicellular organisms that differ from ... Prokaryotes are unicellular (in rare cases, multicellular) organisms without ...

Paramecium

...e Editor-In-Chief to add or edit content to ... Paramecium is a group of unicellular ciliate protozoa formerly known as slipper ... A paramecium is a p...udied, described and photographed extensively. ... Paramecium is a small unicellular organism. ... ...
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