1. Zoospores germinate rapidly and semi-synchronously upon exposure to growth medium or an inorganic salts solution. Amino acid incorporation into protein is detected only after a characteristic lag period, the extent of which is a function of developmental, rather than absolute, time.. 2. The turn-on of amino acid incorporation occurs after several of the morphological events of germination have taken place - notably, retraction of the flagellum, conversion to a spheroid cell morphology, vesicle fusion with the plasma membrane, formation of the initial cell wall, and elongation of the single mitochondrion. A second group of morphological changes - release of ribosomes from the nuclear cap into the cytoplasm, appearance of multiple mitochondrial profiles, disappearance of the flagellar axoneme, and disappearance of gamma particles - takes place in the cell population during the turn-on of incorporation.. 3. Cycloheximide reversibly inhibits germination at a characteristic block point. ...
Participants: 1) Herwig Baier (PI, Max Planck Institute of Neurobiology, Munich), coworker: Miguel Fernandes 2) Marcus Elstner (PI; Karlsruhe Institute of Technology, KIT), coworker: 3) Peter Hegemann (PI; Humboldt University Berlin), coworker: Ulrike Scheib 4) Franziska Schneider (PI; University of Freiburg), coworker: Ramona Kopton Abstract: Mechanism, engineering and application of Rhodopsin-guanylyl cyclases Channelrhodopsin, which was discovered and described as a light-gated ion channel in the laboratory of Peter Hegemann and colleagues, has revolutionized the field of neuroscience over the past decade by enabling researchers to specifically activate selected neurons in a large ensemble of neuronal cells with short light flashes, a technology now known as Optogenetics. However, though highly desirable, the inactivation of specific cells using moderate or low light intensities is not yet possible. The recently discovered rhodopsin-guanylyl-cyclase (RhGC) of the fungus Blastocladiella ...
Multiple anthropogenic stressors have been shown to impact animal and plant communities in freshwater ecosystems, but the responses of aquatic fungi remain largely unknown. Stressor effects on fungal communities may, however, result in changes of decomposition of plant litter and, thus, impact nutrient cycling, a key process for ecosystem functioning. We tested the impact of increased chloride and sediment levels, as well as reduced water flow velocity, on eukaryotic freshwater communities, with an emphasis on fungi, in a mesocosm experiment. Each of the three stressors was applied individually and in all combinations in a full-factorial design. Litterbags with non-sterilised tree leaves and sterile ceramic tiles were added to the mesocosms, to analyse the responses of communities in decaying plant material and in biofilms. Fungi preferably occurring in biofilms were supposed to represent indigenous aquatic fungi, while litterbag communities should be predominantly composed of fungi known from ...
Radionuclides also termed as radioisotopes are elements that possess radioactivity. It means upon decay they emit radiations like alpha, beta or gamma particles and trans..
About microscopic forms of life, including Bacteria, Archea, protozoans, algae and fungi. Topics relating to viruses, viroids and prions also belong here ...
BIOGRAPHICAL NOTE Alma Whiffen Barksdale (1916-1981) was born in Hammonton, New Jersey on October 25, 1916. She received her A.B. (1937) at Maryville College, Maryville, Tennessee, and her M.S. in botany (1939) and Ph.D. in botany and mycology (1941) at the University of North Carolina, where she was a Carnegie Fellow (1941-42). Dr. Barksdale conducted postdoctoral research under Dr. John N. Couch (1943) and became a National Research Council Fellow with Dr. William H. Weston at Harvard University (1942-43). Dr. Barksdales work falls into three periods. The first was her graduate and postdoctoral studies on the cytology, nutrition, and taxonomy of aquatic fungi (phyla Oomycota and Chytridiomycota). Her contributions included: (1) the development of methods for the isolation, purification, and culture of nine genera of lower aquatic fungi; (2) the determination of their nutritional requirements; and (3) the discovery of a new type of sexual life cycle in the Blastocladiales, an order composed of ...
Reproduction of articles for non-commercial educational or research use granted without request if credit to The Ohio State University and The Ohio Academy of Science is given. ...
New research aimed at studying the ecology of the fungus has also helped us to understand patterns of occurrence. This aquatic fungus appears to be sensitive to temperature conditions, and is not as prevalent in areas that get extremely hot and cold. In at least one strain of the fungus, researchers found that differences in frogs generation time and fecundity were observed in response to different thermal regimes (Voyles et al. 2012). We pursued the fungus at high latitudes to see if its range might be limited there due to extreme cold temperatures. In Alaska, we found the fungus throughout the range of the wood frog (Lithobates sylvaticus), the only amphibian species that inhabits the Alaska interior and a unique frog species in that they "freeze" in winter. Our research showed that frogs can largely clear the pathogen during this process, although upon warming, lingering fungal zoospores appeared to be able to quickly re-establish infection.. In another recent advance in research, the ...
Massapequa Mold Removal Should you believe or know that there is you living in or possess a house in need of Mold removal that was Massapequa, then youve reached the appropriate spot. Water Mold & Fire ...
Copyright Get Revising 2017 all rights reserved. Get Revising is one of the trading names of The Student Room Group Ltd. Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered office: International House, Queens Road, Brighton, BN1 3XE ...
The Chelsea Smile had emerged into real space in a belch of exotic fire, huge portions of its front armour had been gouged away, leaving reams of open decks and super structure open to space, still venting atmosphere, fire and drive plasma into space. Its underside launch bays had been reamed open into a vast slash across the underside of the once proud vessel. Once mighty weapon turrets had been ripped away, leaving potholes across the broken hull, and half of its bridge section had been torn asunder. Almost all of the power had been drained from its nuclear reactors and its FTL system still leaked volatile radiation into the coldness of space, painting the whole region in beta and gamma particles, creating beautiful but deadly plumes of invisible energies ...
The Chelsea Smile had emerged into real space in a belch of exotic fire, huge portions of its front armour had been gouged away, leaving reams of open decks and super structure open to space, still venting atmosphere, fire and drive plasma into space. Its underside launch bays had been reamed open into a vast slash across the underside of the once proud vessel. Once mighty weapon turrets had been ripped away, leaving potholes across the broken hull, and half of its bridge section had been torn asunder. Almost all of the power had been drained from its nuclear reactors and its FTL system still leaked volatile radiation into the coldness of space, painting the whole region in beta and gamma particles, creating beautiful but deadly plumes of invisible energies ...
primary zoospore ii) Primary zoospores liberated a) Hole opens up at the end of the zoosporangium b) All the zoospores flow out iii) Primary zoospores swim and encyst a) Swim for a time b) Drop to the bottom (substrate) with flagella down c) Develop cellulose walls (encysting) d) Rests (remains in that situation for a while) iv) Release of secondary zoospore a) Secondary zoospore is formed out of the cytoplasm in the ...
Hi, My pool supply store recently told me that Baquacil CDX has been replaced by Softswim Oxysheen (untrue for one thing) and that it works just as well if not better. I use CDX primarily as a means of helping to avoid getting white water mold. So what I would like to know is - do these two products work basically the same as the store is telling me? The Oxysheen is 42.8% potassium peroxymonopersulfate, and 4.3% active oxygen with a pH of 2.3. The CDX is 2,2-dibromo-3-nitrilopropionamide.