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Friday, November 6, 2020 | History

2 edition of Ascocarp development in two species of Rhytisma found in the catalog.

Ascocarp development in two species of Rhytisma

John Stephen Duravetz

Ascocarp development in two species of Rhytisma

Rhytisma acerinum (Pers. ex St. Amans) Fries and Rhytisma punctatum (Pers.) ex Fries.

by John Stephen Duravetz

  • 389 Want to read
  • 14 Currently reading

Published in [Toronto] .
Written in English

    Subjects:
  • Rhytisma,
  • Phylogeny.

  • Edition Notes

    ContributionsToronto, Ont. University. Theses (M.Sc.)
    Classifications
    LC ClassificationsLE3 T525 MSC 1967 D87
    The Physical Object
    Pagination[27 leaves]
    Number of Pages27
    ID Numbers
    Open LibraryOL17277596M


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Ascocarp development in two species of Rhytisma by John Stephen Duravetz Download PDF EPUB FB2

Ascocarp development in Rhytisma acerinum and R. punctatum Article in Canadian Journal of Botany 49(8) January with 33 Reads How we measure 'reads'   The discomycetous fungusCryptomyces mullerii affecting leaves ofSalix tetrasperma was studied for internal morphology and early development.

The overall developmental pattern of ascocarp centrum is closely similar to members of the order Phacidiales. The developmental pattern of the ascocarp, centrum characters, the nature and ontogeny of the inter-ascal filaments and above all the The ascocarp wall is a tissue enclosing the The podetium of Cladonia, as in Baeomyces, is part of the ascocarp but its structure and mode of development are different (Krabbe, ; Letrouit The spore mass sticks together remarkably well and can in some species protrude as a column easily two or three times longer than the width of the Ascocarp Development in Lophodermium pinastri Article in Canadian Journal of Botany 55(20) January with 10 Reads How we measure 'reads' The species of the order are saprobes, endophytes, and plant pathogens, such as Hypoderma, Lophodermium, and Rhabdocline, which cause needle cast diseases of conifers.

Rhytisma. Most species of Rhytisma produce numerous apothecia in each stoma Ascocarps of Rhytisma acerinum overwinter in fallen, dead maple leaves. The flat, circular, black, tar Rhytisma americanum is found on leaves of various American Acer (maple) species (Weber and Webster, ). Although the frequencies of tar spot infection can be very high, these fungi seem to   Rhytisma americanum sp.

nov.: a previously undescribed species of Rhytisma on maples (Acer spp.) George W. Hudler, Sandra Jensen-Tracy, and Mark T. Banik: Alternaria themes and variations () Emory G. Simmons: The lichen family Parmeliaceae (Ascomycotina) on Lord Howe Island,   Factors influencing growth and ascocarp production in three species of Sporormiella.

Canadian Journal of Bot Basith. & Madelin, M. Studies on the production of perithecial stromata by Cordyceps militaris in artificial culture. Canadian Journal of Bot Ascocarp development Bell, W. & Fergus, C. L   – Heterokaryosis: two types of nuclei in a single mycelium - anastomosis and insertion of a foreign nucleus (mother nature is a bitch), mutations or chromosomal rearrangements.

– Karyogamy within somatic mycelium to establish stable or unstable diploid. –   The Development of the Ascocarp of Lachnea Scutellata. The development of the ascocarp of Lachnea scutellata Brown   Notes on the Development of the Morel Ascocarp Morchella Content: Integrating Morphological and Molecular Data in Fungal Systematics / David L.

Hawksworth -- The Systematics and Evolutionary Perspectives of Fossil Fungi / S.K.M. Tripathi -- From Zoospores to Molecules: The Evolution and Systematics of Chytridiomycota / Martha J.

Powell and Peter M. Letcher -- Current Systematics of Zygomycotan Fungi with Brief Review on their Biology / Gerald L   The development of the ascocarp of Lachnea scutellata Brown   Spring and early summer species of Cortinarius, subgenus Telamonia, section Colymbadini and /Flavobasilis, in the mountains of western North America.

Mycologia   Of particular significance was his demonstration that two separate lines of development occurred among the perithecial ascomycetes, which corresponded to the Ascohymeniales and Ascoloculares types of ascocarp development originally proposed by the Swedish mycologist J.

Nannfeldt in The long narrow asci of such Ascomycetes as Neurospora and Sordaria species are ordered in the sense that the positions of the spores reflect the two divisions of meiosis.

The first division spindle is oriented lengthwise along the ascus. The second division spindles are (with some exceptions, Ascocarp development in two species of Rhytisma book in Sordaria brevicollis) arranged end-to-end without overlap, so that alleles separated from The known species of the order Laboulbeniales are obligate haustorial ectoparasites of insects and a few other arthropods (Weir and Blackwell, ).

Two-celled ascospores germinate on the host surface to produce a haustorium from an attached cell and the outer cell divides produce a perithecium with determinate :// To distinguish: Between Ascus, ascocarp, and ascospores. Introduction: Ascomycetes are also known as sac fungi.

They are used to produce cheese, bread, and antibiotics. Many members of this group form a symbiotic association with other plants and organisms such as mycorrhizal and lichens. Ascocarp is the fruiting body of :// Special ascogenous hyphae arise, in which pairs of nuclei migrate: one from the “male” strain and one from the “female” strain.

In each ascus, two or more haploid ascospores fuse their nuclei in karyogamy. During sexual reproduction, thousands of asci fill a fruiting body called the ascocarp. The diploid nucleus gives rise to haploid Rhytisma himalense on Ilex fargesii is a known species and probably widely distributed in China.

Including the two new species, 11 species of Rhytisma are known from China which are presented in a Learn ascomycota with free interactive flashcards. Choose from different sets of ascomycota flashcards on :// Three new species of Terriera, T.

guizhouensis, T. houjiazhuangensis, and T. ilicis are described and illustrated based on collections from Anhui, Guizhou, and Hubei provinces in China.

Sequence analyses of ITS rDNA and the combined nrLSU and mtSSU supported the establishment of the new species. The specimens formerly identified as Lophodermium minus (syn.

Terrierra minor) in China need Abstract. Over the last 75 years, studies on ascocarp development have played an increasingly important role in ascomycete taxonomy.

The classic studies by Dangeard (), Nannfeldt (), Luttrell (, ), and several others are so well known and so fundamental that they are often quoted without literature :// Sancholle M, Weete JD, Kulifaj M, Montant C () Changes in lipid composition during ascocarp development of the truffle Tuber melanosporum.

Mycologia – CrossRef Google Scholar Schone C, Höfler H, Walch A () MALDI imaging mass spectrometry in cancer research: combining proteomic profiling and histological ://   Three species belonging to the genus Rhytisma causing tar spot were collected on leaves in evergreen trees of Ilex species from ma ilicis-latifoliae, the known species, is found on Ilex latifolia, and R.

ilicis-integrae sp. nov. and R. ilicis-pedunculosae sp. nov. are found on I. integra and I. pedunculosa, ta are formed on the abaxial part of the stromata in all The Sub-Class Euascomycetes, Series Discomycetes are the "cup fungi," a group with o species.

The ascocarp is an apothecium. The hymenium is always exposed and cup-shaped. There are two Sub-Series: Inoperculatae and ://~legneref/fungi/ Abstract.

Although the term “centrum” has not been generally used to describe apothetical development in the discomycetes, the concept includes the ascogenous system and sterile tissues occupying cleistothecial, perithecial, and pseudothecial cavities of other groups of ://   These two genera are separated solely on the shape of the ascocarp and its opening.

The ascocarps of Coccomyces are round to angular in shape, with radiate opening slits. Those of Lophodermium are elliptic in shape, with a single longitudinal opening slit. A Rhytismata- ceous species found in New Zealand on Nothofagus   in ascocarp development.

Lasiobolus, a multiascal species, opens in the late mesohymenial phase as spores mature. Thelebolus, the uniascal form, opens in the telohymenial phase; during spore liberation. ciliatus also differs developmentally from T.

stercoreus by the presence of croziers. Lasiobolus ciliatus also has an operculum at There are about 8 species and sub species of maples in northern forest of Iran.

Maple tar spot is one of the most important diseases in most parts of the world. It is caused by two species of Ascomycets (Rhytisma acerinum and R. punctatum). In this study, effect of these fungi on native maples of northern forest along with the bio-ecological aspects of the fungi has been studied in East of This number includes two OTUs (T.

indicum and T. huidongense) which have not yet been reported from the Czech Republic. Six species detected by the PCR assays described here had been recorded previously as ascocarps, and another eight truffle species are known from the Czech Republic only from ascocarp ://   Basidiomycota: The Club Fungi.

The fungi in the Phylum Basidiomycota are easily recognizable under a light microscope by their club-shaped fruiting bodies called basidia (singular, basidium), which are the swollen terminal cell of a basidia, which are the reproductive organs of these fungi, are often contained within the familiar mushroom, commonly seen in fields after rain, The species of Lophodermium originally described or reported from monocotyledonous hosts are monographed.

Seventy-seven specific or subspecific epithets in Lophodermium are reported from the literature, together with those of six other species at present placed in the genera Clithris, Colpoma, Hysterium or Rhytisma but closely related to one or more of the species described in :// There are about 8 species and sub species of maples in northern forest of Iran.

Maple tar spot is one of the most important diseases in most parts of the is caused by two species of Ascomycets (Rhytisma acerinum and R. punctatum)   DARKER: REVISION OF THE HYPODERMATACEAE red during early development and thus no doubt fitted into the concept of r.

Candolle's genus. Chevallier () established Lophodermium for essen- Ilv the same group of organisms treated by De Candolle under Hypoderma d included six still currently acceptable Lophodermium species, one Hypoder- a ella*anc^two HyP°derma species   of Rhytisma spots sometimes extending on to the ascocarp.

The collection was made at Sauk City September 6, In the description of Cercospora viciŒe Ell. & HOI. (Journ. Mycol. 1: 5 & 39) the conidiophores are said to be "short, The Wisconsin specimens that have been referred to this species bear conidiophores up to Westcott's Plant Disease Handbook, 7th Edition, should be useful to anyone with a keen interest in gardening including but not limited to botanical gardeners, landscape architects, florists, master gardeners, nurserymen, seed and fungicide dealers, pesticide applicators, arborists, cooperative extension agents, plant pathologists and :// Sexual reproduction starts with the development of special hyphae from either one of two types of mating strains ().

The “male” strain produces an antheridium and the “female” strain develops an ascogonium. At fertilization, the antheridium and the ascogonium combine in plasmogamy, without nuclear ://   Neurospora africana is an example of such a species.

Additionally, some "Neurospora" species are said pseudohomothallic. They carry both mating types, but in separate nuclei in the same individual. Two haploid nuclei originating from the same meiosis are packaged into one ascospore.

The individual is thus permanently :// Definitions. The ascocarp is a perithecium in most species. An ascocarp is the fruiting body of some ascomycete fungi, containing millions of asci, each of which contains typically eight ascospores.; Ascocarp: the fruiting body of an ascomycete; the multicellular structure that produces asci, and acts as the platform from which the spores are launched.; An ascocarp is the fruiting body of some.

Otherwise known as the yellow-lobed bee orchid, this species is closely related to several other Ophrys spp. that mimic insects, two of which have been previously featured on BPotD: see the gorgeous Ophyrs bombyliflora for a discussion of plant trickery, or the sly Ophrys The Kingdom of Fungi provides an intimate look at the world's astonishing variety of fungi species, from cup fungi and lichens to truffles and tooth fungi, clubs and corals, and jelly fungi and puffballs.

This beautifully illustrated book features more than stunning color photographs as well as a concise text that describes the biology and   Hymenoscyphus albidus, a saprotroph on leaves of European ash. In late summer and early autumn, Hy. albidus (Roberge ex Gillet) W.

Phillips forms white stipitate apothecia on fallen, previous year’s rachises (here used for the entire main axis including the basal petiole) and leaflet veins of the pinnate leaves of ash (Fraxinus excelsior, Oleaceae, Lamiales).