What's the difference between mycelium and rhizoid?

Mycelium


Definition:

  • (n.) The white threads or filamentous growth from which a mushroom or fungus is developed; the so-called mushroom spawn.

Example Sentences:

  • (1) It was shown that the levels of ATP and ADP in the mycelium depended on the carbon source: the maximum and minimum ATP concentrations were found on the glucose and acetate media respectively, the maximum and minimum ADP concentrations showed inverse dependence.
  • (2) In other slowly growing mycobacteria, M. tuberculosis, M. bovis, M. kansasii, M. scrofulaceum, M. gordonae, M. marinum and M. nonchromogenicum, such mycelium formation was not observed.
  • (3) Extraction of mycelium or walls of Micropolyspora faeni with cold or hot aqueous phenol yielded a lipopolysaccharide consisting of lipid A, phosphate, galactose, arabinose, glucose, glucosamine, and a dideoxy sugar.
  • (4) The mycelium of Trichoderma viride grown in the dark under submerged conditions and transferred to membrane filters sporulated only after photoinduction.
  • (5) To isolate single spores from adhesive ascospores and the mycelium, the suspension was sucked through a combination of sintered-glass plates with different pore sizes.
  • (6) The enzyme was obtained from the mycelium of Actinomyces lavendulae.
  • (7) The effect was observed for other organisms but notably L. trabea, which produced considerable enzyme from a small quantity of mycelium.
  • (8) It lost about 80 per cent of the initial activity at a concentration of KC1 equal to 1.0 M. The molecular mass of the enzyme from the mycelium of Act.
  • (9) The authors observed maximum simultaneous biosynthesis of antibiotic and pigment in the microphilic fungus with using 48-hour seed mycelium having the specific growth rate of 0.008-0.011 h-1 in an amount of 5-7 per cent (v).
  • (10) Depending upon growth temperature, Candida albicans can exhibit two different morphologies, a budding yeast or a mycelium.
  • (11) The other major soluble carbohydrate of the sporophore, trehalose, decreased throughout the growth of the sporophore; a parallel decrease was observed in the mycelium.
  • (12) The cytochrome composition of the culture was not affected by the age of the mycelium, the intensity of antimycin A production, or differences in the media.
  • (13) Wheat kernels with visible Fusarium-damage, naturally infected, have been examined with histochemical techniques to observe mycelium growth inside kernels and change in kernels cells.
  • (14) Ultrastructure of basidiospores and mycelium of Lenzites saepiaria.
  • (15) In nongrowing cells (ungerminated sporangiospores and stationary-phase mycelium), the profile was skewed toward lower densities with a sharp chitosome peak at d = 1.12-1.13.
  • (16) Metabolism of carbohydrates was studied in Penicillium chrysogenum 194 and in its inactive mutant growing on a defined medium, and also in the washed mycelium of these cultures.
  • (17) Our previous work indicated that MY1049 was able to grow and produce abundant mycelium in the renal calices of infected mice but that the strain was unable to invasively colonize the renal tissue.
  • (18) However, further development of the mycelium was inhibited.
  • (19) These changes were correlated to the decrease of the ratio of saturated to olefinic fatty acids in the mycelium, suggesting that alcohols and other polar lipophilic compounds can interfere with the biosynthesis and the function of the cytoplasmic membrane in Streptomyces.
  • (20) The mycelium contained up to 38% of a slightly branched, storage (1----3),(1----6)-beta-D-glucan with a MW of 20,000.

Rhizoid


Definition:

  • (n.) A rootlike appendage.

Example Sentences:

  • (1) The initial stage of polarization is axis selection, during which zygotes monitor environment gradients to determine the appropriate direction for rhizoid formation.
  • (2) Under these conditions, we determined whether sulfation of the fucan is required for its localization in the rhizoid wall.
  • (3) Structure of cell walls of encysted meiospores, rhizoids, and hyphae differ from one another by the location of amorphous materials and by the arrangement of chitin microfibrils.
  • (4) The present study deals with patients in whom the diagnostic procedures applied in rhizoid arthrosis were considered to reveal scaphoid-trapezium-trapezoid (STT) arthrosis.
  • (5) While different developmental stages show minor quantitative changes in chitin, the ratio of galactose to glucose decreases sharply during differentiation of ungerminated cysts into germlings with rhizoids and hyphae.
  • (6) The germination direction of chloronemal filaments is directly influenced by red light over this whole intensity range, while that of rhizoids tends to be opposite the chloronema.
  • (7) These features are the presence of hydrogenosomes at all stages of the life cycle, the presence in rhizoids and sporangia of characteristic crystals coated with hexagonal arrays of particles, and in zoospores the presence of distinct surface layers on the motility organelles and cell body respectively, the organization of the ribosomes into helical and globular arrays and the structures associated with the kinetosomes.
  • (8) In addition to biochemical changes in response to variations in the ratio of availability of various resources (photons, N, P) there are also structural changes; significant here is the increased occurrence of (often colourless) hairs in haptophytes and (probably) of enhanced rhizoid development in rhizophytes.
  • (9) The ribosomal RNA transport from a nucleus to a perinuclear cytoplasm and its following distribution in the cytoplasm of Acetabularia mediterranea cells were studied using transplantation of RNA-labeled rhizoid into unlabeled stalk.
  • (10) Exoglucanase, measured with alkali-treated Sigmacell or Avicel, gave low levels of activity in the culture fluid (less than 2 U ml-1) and did not appear to be associated with the fungal rhizoid, as treatment with various solubilizing agents failed to give increased activity.
  • (11) Previous work indicated that zygotes grown in seawater minus sulfate do not sulfate the preformed fucan (an unsulfated fucoidin) but form rhizoids.
  • (12) In the rhizoid bulbil cell walls, six different layers could be distinguished, but their occurrence seemed to depend on the fixation, staining and cutting procedures.
  • (13) The outermost layers of internodal, cortical and rhizoid bulbil cells were composed of randomly orientated fibrils.
  • (14) Inhibitors could be grouped according to the stage of germination (cyst or rhizoid) at which they blocked development; those effective at the rhizoid stage, could be divided further on the basis of the resultant morphology of the germling.
  • (15) The ability of P communis to more rapidly degrade maize stem was probably due to the presence of filamentous rhizoids.
  • (16) The rumen flagellate Sphaeromonas communis showed a significant increase in population density 1 to 2 h after the host sheep commenced feeding, followed by a reduction in numbers to the pre-feeding level after a further 2 to 3 h. The life-history of the organism was shown to consist of a motile flagellate which germinated to produce a vegetative stage comprising a limited rhizoidal system on which up to three reproductive bodies were borne together with (in vitro) other spherical bodies of unknown function; in vivo, the reproductive bodies were stimulated to liberate flagellates by a component of the diet of the host.
  • (17) Vn does not localize to the rhizoid tip under culture conditions that prevent two-celled embryos from attaching.
  • (18) In both the rhizoids and the sporangia 'crystal bodies' and hydrogenosomes are present.
  • (19) If sulfate is added back to cultures of zygotes grown without sulfate, fucoidin is detected at the rhizoid tip by RCA(I)-FITC several hours later.
  • (20) A sulphated F2 alone is not sufficient for its localization since in the presence of cytochalasin, vesicles containing F2 are not transported to the rhizoid.

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