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  Encyclopedia of Keywords > Ascomycetes > Ascus > Ascospores   Michael Charnine

Keywords and Sections
MICROSCOPICALLY
DARK
MORELS
OPERCULUM
SEXUAL PROCESS
VEGETATIVE DIVISION
PRIMARY INOCULUM
VARIOTII
GERM PORE
UNUSUAL ASCOSPORES
VIABLE ASCOSPORES
FRULLANIA DILATATA
MACROSPORA
HEAT-RESISTANT ASCOSPORES
COLOUR PHOTOMICROGRAPH
MATURE FRUITING BODIES
TAN ASCOSPORES
OSTIOLAR OPENINGS
CARPOGENIC GERMINATION
UNISERIATE ASCOSPORES
ASEXUAL SPORES
APICAL PORE
NUMEROUS ASCOSPORES
SEXUAL ASCOSPORES
GORODKOWA MEDIUM
MEIOTIC CELL DIVISION
CONTAINING ASCOSPORES
SHOWS
RESULT
ROW
CONTRAST
PRODUCTS
PRODUCTION
AIR
OUTDOORS
GENUS
MEMBERS
NUMBER
SIZE
COLORLESS
MATURATION
CASES
RUPTURE
ISOLATES
FLUID
FORMATION
Review of Short Phrases and Links

    This Review contains major "Ascospores"- related terms, short phrases and links grouped together in the form of Encyclopedia article.

Definitions

  1. Ascospores are spores (usually eight) that are contained in sacs (asci), and basidiospores (usually four) are contained in clublike structures (basidia).
  2. Ascospores are disseminated by wind, while the virus containing conidia are not airborne, and have to rely upon animal or water (rain) vectors for dispersal. (Web site)
  3. Ascospores are nonmotile, usually single celled, but not infrequently may be septate (lacking a septum), and in some cases septate in multiple planes. (Web site)
  4. Ascospores are a general category of spores that have been produced by means of sexual reproduction (in a sack-like structure called an ascus). (Web site)
  5. Ascospores are released from the ascoma and germinate to form a new haploid mycelium.

Microscopically

  1. It was ascertained microscopically that the majority of the perithecia had erupted, freeing the ascospores. (Web site)

Dark

  1. One has to make sure that the asci observed contain eight ascospores, and have both colors of ascospores present (tan = dark and wild-type = light).
  2. These ascospores are never forcibly discharged, but they can be extruded in a dark, sticky mass or cirrhus.

Morels

  1. The asci and ascospores of morels. (Web site)

Operculum

  1. The unitunicate ascus sometimes has an operculum (a small lid), which opens to liberate the ascospores when the ascus is mature.
  2. The order Helotiales has inoperculate asci-- this means that their asci (which bear the ascospores) do not open by a hinged lid called an operculum.

Sexual Process

  1. The ascospores either bud asexually or fuse with another cell to repeat the sexual process.

Vegetative Division

  1. These ascospores may fuse with adjoining nuclei and multiply through vegetative division or, as with certain yeasts, fuse with other ascospores. (Web site)

Primary Inoculum

  1. The mummified berries overwinter, then germinate to produce Monilinia apothecia that release the primary inoculum (ascospores) to start the cycle again. (Web site)

Variotii

  1. In addition to sequence analyses, mating experiments indicated that P. variotii is able to form ascomata and ascospores in culture in a heterothallic manner. (Web site)

Germ Pore

  1. Ascospores of P. lignicola possess a germ pore at each end, a feature not seen in ascospores of A. megaloascocarpa. (Web site)

Unusual Ascospores

  1. In addition two new hepaticolous species of Nectria with unusual ascospores are proposed.

Viable Ascospores

  1. However, on opening, 10% of these perithecia contained ascus rosettes with eight viable ascospores. (Web site)
  2. Most of these (60%) harbored undifferentiated asci and no viable ascospores (Figure 4). (Web site)

Frullania Dilatata

  1. An asterix indicates ascospores of species growing on Frullania dilatata.

Macrospora

  1. Under laboratory conditions, S. macrospora completes its life cycle within seven days and produces pear-shaped fruiting-bodies with asci and ascospores. (Web site)

Heat-Resistant Ascospores

  1. For example, strain CBS 110431 was isolated from rye bread, where the production of heat-resistant ascospores is not a prerequisite for spoilage. (Web site)

Colour Photomicrograph

  1. Note that the 8 ascospores in the colour photomicrograph (left) are darkly pigmented and dictyosporous.

Mature Fruiting Bodies

  1. Six days after induction, the control strain FGSCA26 had differentiated mature fruiting bodies: cleistothecia filled with ascospores.
  2. Mature fruiting bodies from most ascomycetes harbor 200 to 400 asci, which after meiosis and postmeiotic divisions contain eight ascospores each. (Web site)

Tan Ascospores

  1. Wherever gene recombination took place, black and tan ascospores were observed in the same ascus.

Ostiolar Openings

  1. Ostiolar openings are visible throughout the specimen but mature ascospores were found only in one region. (Web site)

Carpogenic Germination

  1. This is the first record of the carpogenic germination of S. minor in Australia and demonstration of infectivity of the ascospores on sunflower. (Web site)

Uniseriate Ascospores

  1. There are 8 globose, uniseriate ascospores.

Asexual Spores

  1. It produces both asexual spores (conidia) and sexual spores (ascospores). (Web site)

Apical Pore

  1. A globular to flask-shaped fruiting body that has an apical pore through which the spores (ascospores) are released.

Numerous Ascospores

  1. Numerous ascospores are situated within an ascus which is a sac-like structure. (Web site)
  2. Cleistothecia harvested from either transformant contained numerous ascospores that were able to germinate when transferred to culture medium. (Web site)

Sexual Ascospores

  1. Sexual ascospores are produced in a saclike structure called an ascus.

Gorodkowa Medium

  1. Saccharomyces produces ascospores, especially when grown on V-8 medium, acetate ascospor agar, or Gorodkowa medium. (Web site)

Meiotic Cell Division

  1. Each ascus contains eight ascospores, produced by a meiotic cell division followed by a mitotic cell division. (Web site)

Containing Ascospores

  1. Asci of Morchella elata, containing ascospores In plants, microspores, and in some cases megaspores, are formed from all four products of meiosis. (Web site)

Shows

  1. Table 2 shows the results for colonies and ascospores of C. globosum. (Web site)

Result

  1. Being the result of meiosis, an ascus usually contains eight ascospores but, in some species, the ascus contains only four, or two ascospores.
  2. Ascospores are formed within the ascus as a result of free cell formation or ascosporogenesis.

Row

  1. Eight ascospores can be found lined up in a row in the asci; they form a single zygote, which is diploid.
  2. An ascus is typically club shaped and which forms internally 4 or 8 ascospores, usually in a row.
  3. If the ascospores arrangement has four black and tan ascospores in a row, then hybridization took place but no crossing over arose.

Contrast

  1. The latter are called ascospores in contrast to the asexual conidiospores.

Products

  1. Ascomycetes, such as baker's yeast, are popular for genetics research because the ascospores they produce in each ascus are the products of meiosis.
  2. Asci are tubular sacs containing the ascospores, which are the products of meiosis. (Web site)

Production

  1. Yeast, the unicellular fungi that has the charecteristics of cell, ascospores and colony has the ability to ferment sugars by the production of ethanol.
  2. The Ascomycota includes the higher fungi that reproduce sexually by the production of ascospores.
  3. Multipolar budding, production of ascospores, and fermentation profile aid in identification of Saccharomyces [ 531].

Air

  1. In most ascomycota, the ascus becomes turgid at maturity and finally bursts, sending its ascospores explosively into the air.

Outdoors

  1. Like the Ascospores, levels of Basidiospores may be higher indoors than outdoors if there have been recent changes in outdoor weather conditions.

Genus

  1. Most Ascospores of health or IAQ importance are identified separately by their genus (e.g. (Web site)
  2. Ascospores are the sexual spores produced by this genus. (Web site)

Members

  1. Members of the Ascomycotina produce asexual conidiospores and sexual ascospores in sac-shaped cells called asci. (Web site)

Number

  1. Eight ascospores typically are formed within the ascus, but this number may vary from one to over a thousand according to the species.
  2. In most ascomycetes, each ascus contains eight ascospores, but the number may vary from one to several hundred.
  3. While the number of ascospores per ascus in usually 8, 1, 2, 4, 6, as well as numerous ascospores per ascus are also known. (Web site)

Size

  1. The individual ascospores are extremely variable in size and shape.
  2. The upper ascus is older and shows also a brighter fluorescence than the ascus below, which is younger (compare the size of the ascospores).

Colorless

  1. The ascospores are small, colorless or sometimes pigmented, round in face view, somewhat flattened in side view, and may be ornamented or flanged. (Web site)
  2. Ascospores are colorless and formed eight per ascus.

Maturation

  1. At maturation, the cleistothecium bursts and releases the asci, which are filled with ascospores.

Cases

  1. In a few cases, the ascospores can bud off conidia that may fill the asci (e.g. (Web site)

Rupture

  1. When the asci expand they rupture the chasmothecia wall, throwing the ascospores into the air. (Web site)

Isolates

  1. However, isolates of S. minor and S. sclerotiorum were proven to be homothallic ascomycetes, by self-fertility of all eight ascospores within an ascus. (Web site)

Fluid

  1. As the spores grow, fluid pressure builds up in the ascus until the operculum bursts open and the ascospores are blown out into the environment.

Formation

  1. The perfect state is characterized by the formation of a saclike cell (ascus) containing ascospores. (Web site)
  2. Like P. variotii, this species also occurs in heat-processed products due to the formation of heat-resistant ascospores. (Web site)

Categories

  1. Ascomycetes > Ascus
  2. Asci
  3. Meiosis
  4. Ascomycetes
  5. Spores

Related Keywords

    * Apothecium * Appendages * Asci * Ascocarp * Ascocarps * Ascoma * Ascomata * Ascomycete * Ascomycetes * Ascomycota * Ascus * Asexually * Basidiospores * Cells * Cleistothecia * Conidia * Cylindrical * Cytoplasm * Defining Feature * Discharge * Dispersal * Ellipsoidal * Enclosed * Fig * Form * Forming * Forms * Form Ascospores * Fruiting Bodies * Fruiting Body * Fungi * Fungus * Germination * Globose * Group * Haploid * Haploid Ascospores * Haploid Mycelium * Hundreds * Hymenium * Hyphae * Karyogamy * Mature * Mature Ascospores * Maturity * Meiosis * Meiospores * Meiotic Divisions * Millions * Mitosis * Molds * Mycelium * Nuclei * Ostiole * Paraphyses * Perithecia * Process * Sac * Sac-Like Structure * Sacs * Septa * Septate * Septum * Sexually * Sexual Reproduction * Sexual Spores * Sexual State * Shape * Similar * Species * Spore * Spores * Stained * Structures * Truffles * Types * Value * Vegetative Cells * Water * Yeasts * Zygote
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  Short phrases about "Ascospores"
  Originally created: April 04, 2011.
  Links checked: January 23, 2013.
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