pycnidia

share

Examples
pycnidia's examples

  • The surface of the withered fruit is soon covered with minute, black, pimple-like, sporeproducing pycnidia that are arranged in circular zones. During August, the pycnidia are transformed into the overwintering. — “MBG Integrated Pest Management”,
  • Encyclopedia article about pycnidia. Information about pycnidia in the Columbia Encyclopedia, Computer Desktop Encyclopedia, computing dictionary. — “pycnidia definition of pycnidia in the Free Online Encyclopedia”, encyclopedia2
  • Figure 2: Cytospora canker on three branches, each with scattered pycnidia. Figure 3: Orange spores oozing from pycnidia. Cytospora canker is caused by several species of fungi in the Genus Cytospora. The disease occurs on woody shrubs and trees or parts of plants that are slightly stressed. — “Cytospora Canker”, ext.colostate.edu
  • On older lesions, small black pycnidia are formed, embedded in the tissue. produces globular, black pycnidia filled with very narrow and long. — “Septoria Leaf Spot”,
  • This fungus initially appears as a white mold beginning at the base of the ear. The mold and the kernels then turn grayish brown and rot the entire ear. A very distinguishing characteristic is the appearance of raised black bumps (pycnidia) on. — “Diplodia ear rot of corn”, ent.iastate.edu
  • Ascochyta tritici persists in host debris as mycelium and pycnidia. Spores (conidia / pycnidiospores) released during wet weather conditions are suspected to be the primary inoculum. With aid of a dissecting microscope ~ look for black pycnidia in necrotic tissue of lesions. — “HPIPM:Asconchyta Leaf Spot - Bugwoodwiki”,
  • Pycnidia (fungal fruiting structures) are produced within the leaf spot, often in a ring Pycnidia are light to dark brown in color and partially embedded within plant tissue. — “Plant Pathology | Extension | Phyllosticta | CAES | UGA”, plantpath.caes.uga.edu
  • Summary In summer of 2004, pycnidia of Diplodia pinea were observed on cones of Pinus resinosa that had matured and opened during previous years, but had been retained in canopies of trees at a mature red pine plantation in southern Wisconsin. — “pycnidia: Topics by ”,
  • A pycnidium (plural pycnidia) is an a***ual fruiting body produced by mitosporic fungi in the form order Sphaeropsidales (Deuteromycota, Coelomycetes). It is often spherical or inversely pearshaped (obpyriform) and its internal cavity is lined with conidiophores. — “Pycnidium - Wikipedia, the free encyclopedia”,
  • Phoma species form ostiolate pycnidia that produce phialides, and conidia that have two oil droplets in each conidium. Phoma differs from Pyrenochaeta by the absence of setae. — “Phoma Species”,
  • Definition of pycnidia in the Online Dictionary. Meaning of pycnidia. Pronunciation of pycnidia. Translations of pycnidia. pycnidia synonyms, pycnidia antonyms. Information about pycnidia in the free online English dictionary and encyclopedia. — “pycnidia - definition of pycnidia by the Free Online”,
  • Conidia from pycnidia are viable early in the spring and are rain splashed to new leaves. Pycnidia develop in the center of the lesion and appear as scattered, small black dots. — “Leaf Blight of Strawberry Key words: Plant Disease, Fragaria”, nu-distance.unl.edu
  • Pycnidia, the a***ual fruiting bodies, appear on affected leaves as small black specks, but if the tissue is rapidly killed, as In northern areas of the country in the spring, pycnidia are produced, giving rise to conidia, which serve as the primary. — “Cucurbits-Gummy Stem Blight fact sheet”, vegetablemdonline.ppath.cornell.edu
  • During summer and fall, tiny, black fungal fruiting bodies called pycnidia, which look like black pepper, will appear at the very Also, if shoot moth kills the tip, pycnidia will not be present on the needles. — “Diplodia Tip Blight”,
  • As the infection ages, tiny dark spore producing structures (pycnidia) form within the spots. Conidia (a***ual spores) from pycnidia in the over-wintered fruit and cane lesions (and later from new. — “Introduction”, pmo.umext.maine.edu
  • Diplodia ear rot -- pycnidia. A very distinguishing characteristic of Diplodia ear rot is the appearance of raised black bumps (pycnidia) on the moldy husk or kernels (middle right). Diplodia ear rot occurs most often in fields under reduced tillage where corn follows corn. — “Diplodia ear rot -- pycnidia”, ipm.iastate.edu
  • Organization Directory Events Calendar Hortiplex Glossary Zone Finder Garden Bazaar pycnidia) A rounded or flask-shaped a***ual fruiting body containing spores found in. — “GardenWeb defines pycnidium (pl. pycnidia)”,
  • Forestry Images: Forest Health, Natural Resources and Silviculture Photos with pictures of insects, diseases, trees, plants, weeds, ecosystems, fire, ecology, other pests and wildlife. Black spore-producing bodies ("pycnidia") with spores oozing out under dark-field observation. — “Phyllosticta leaf spots, Phyllosticta spp. (Incertae sedis”,
  • During wet periods in the spring, spores released from black fruiting bodies (pycnidia) are rain splashed and windblown to healthy trees where the fungus may directly penetrate the needles, shoots, and second year cones, or enter wounded stems and branches. — “Diplodia Blight of Pines”, extension.umn.edu
  • It infects and forms pycnidia (fruiting bodies) within powdery mildew Once the mycoparasite has begun to produce pycnidia, the hyphae and conidiophores swell to several times their normal diameter, and the amber color of the pycnidial wall. — “Ampelomyces quisqualis”, nysaes.cornell.edu
  • Detail of grapevine berries infected by Guignardia bidwellii: browning, bluing and desiccation of berries; presence of numerous black dots (pycnidia or young perithecia). Photo: M. Clerjeau, INRA, Centre de Recherches de Bordeaux, France. Figure 7. Mummification of infected berries. — “Symptom images | PaDIL Plant Biosecurity Toolbox”, padil.gov.au
  • Definition of pycnidia from Webster's New World College Dictionary. Meaning of pycnidia. Pronunciation of pycnidia. Definition of the word pycnidia. Origin of the word pycnidia. — “pycnidia - Definition of pycnidia at ”,
  • The conidia are extruded from the pycnidia in milkwhite to buff-colored cirrhi. Scattered, small, dark brown to black pycnidia, easily seen with a hand lens, are embedded in lesions, which sometimes have ashen centers. — “Small Grain Wheat Diseases - Septoria Leaf Blotch”, pnw-ag.wsu.edu

Images
related images for pycnidia

  • With pycnidia or hyphophores tiny peg like dot like or scale like structures
  • Dark thick walled conidia of Torula Phoma species developing on leaves Wheat spikelets covered with the pycnidia The pycnidia of Phoma species The pycnidia of Phoma species often develop Two pycnidia of Phoma species Unicellular conidia of Phoma glomerata 10x40 Sporodochia of Epicoccum nigrum
  • The pycnidia of Phoma species The pycnidia of Phoma species often develop Two pycnidia of Phoma species Unicellular conidia of Phoma glomerata 10x40 Sporodochia of Epicoccum nigrum A closer view of a sporodochium Conidia of Epicoccum nigrum 10x40 Yellowish red lesion on an oat leaf
  • showImage jsp id=IM200802210032
  • These pycnidia contain thousands of spores that can be a source of continued infections As leaf spots become more numerous and coalesce leaves turn yellow and fall Figure 1 Frogeye leaf spot disease on apple leaf Cause Frogeye leaf spot is caused by the fungus Botryosphaeria obtusa This fungus causes three distinctly different
  • Figure 22 4 Pycnidia of S strobilinus on infected shoot of Jeffrey pine
  • Symptoms of ascochyta leaf spot Variants of Ascochyta graminicola Large spored variants of Ascochyta graminicola Phaeoseptoria leaf blotch symptoms Relatively large black pycnidia of P vermiformis Conidia of P vermiformis 10x40 A barley spike displaying the black spore masses Teliospores typical of Ustilago species 10x40
  • Tønsberg 2008 93 photo Brodo et al 2001 254 photo Hinds Hinds 2007 182 photo Thomson 1967 109 plate 13 photo Lichen Atlas of the British Isles 2 384 1996
  • pycnidia spermatia
  • Two pycnidia of Phoma species Unicellular conidia of Phoma glomerata 10x40 Sporodochia of Epicoccum nigrum A closer view of a sporodochium Conidia of Epicoccum nigrum 10x40 Yellowish red lesion on an oat leaf Dense clusters of the fruiting structures Greyish conidia of C graminis
  • Attacks Red Austrian Scots Mugo White and Ponderosa pine Spruce and Douglas fir
  • Urediospores of P striiformis 10x40 Uredia of P coronata on an oat leaf Urediospores of P coronata 10x40 Teliospores of P coronata Black pycnidia of D filum Whitish to light grey cirrhi Conidia of D filum 10x40 Early leaf spotting symptoms
  • 2 20 56 Figure 151 Pycnidia on twig
  • showImage jsp id=IM200802210026
  • Septoria pycnidia
  • bumps pycnidia embedded in the mold These reproductive structures are where new spores are produced Unlike Gibberella and Fusarium Diplodia does not produce any known toxins In addition to Fusarium Gibberella and Diplodia four other fungi cause storage molds in Ontario Penicillium Aspergillus Cladosporium and Alternaria can be found in varying
  • pycnidia close jpeg
  • Stunted brown needles on the tips of branches are a hallmark of Diplodia tip blight Black dots spore producing structures of the Diplodia fungus are visible on cones from trees affected by Diplodia tip blight
  • Black pycnidia of D filum Whitish to light grey cirrhi Conidia of D filum 10x40 Early leaf spotting symptoms Conidia of H sativum 10x40 Conidia of H tritici repentis 10x40 Conidia of H avenae 10x40 Conidia and dark conidiophores
  • Ascospores of Pleospora species Stems spike and grain of wheat Dark thick walled conidia of Torula Phoma species developing on leaves Wheat spikelets covered with the pycnidia The pycnidia of Phoma species The pycnidia of Phoma species often develop Two pycnidia of Phoma species
  • pycnidia
  • Figure 14 4 Pycnidia of P juniperovora
  • 1984 202 photo Holien Tønsberg 2008 79 photo Brodo et al 2001 559 photo Hinds Hinds 2007 399 photo Lichen Atlas of the British Isles 3 1120 1121 1998 Photographs Paisley Renfrewshire June 2008 Longniddry East Lothian 2007
  • showImage jsp id=IM200802210029
  • Figure 46 4 Stem canker resulting from needle infection Pycnidia of Phoma eupyrena may be present on the canker face
  • Wheat spikelets covered with the pycnidia The pycnidia of Phoma species The pycnidia of Phoma species often develop Two pycnidia of Phoma species Unicellular conidia of Phoma glomerata 10x40 Sporodochia of Epicoccum nigrum A closer view of a sporodochium Conidia of Epicoccum nigrum 10x40
  • Pathogen and disease characteristics Pycnidia average 75 8 um in diameter Conidia are hyaline single celled biguttulate elliptical and approximately 6 2 x 2 8 um Host range
  • Figure 35 3 Small black pycnidia of C chrysosperma in bark Note orange spore horns
  • Figure 35 4 Whitish spore horns of P macrospora exuding from pycnidia under bark bark removed With the exception of F solani all the fungi causing poplar cankers produce
  • Stems spike and grain of wheat Dark thick walled conidia of Torula Phoma species developing on leaves Wheat spikelets covered with the pycnidia The pycnidia of Phoma species The pycnidia of Phoma species often develop Two pycnidia of Phoma species Unicellular conidia of Phoma glomerata 10x40
  • sloping volcanoes Careful examination with a hand lens will reveal tiny pores or ostioles at the top with projecting papillae The pycnidia 0 14 0 2 mm are very small and numerous Specimen on hard limestone in the wall of an old Church Photographed in the Burren © Paul Whelan Chemical Tests All negative
  • Figure 41 Pycnidia of Sirococcus on a Sitka spruce cone
  • Figure 21 4 Pycnidia of G abietina at base of infected needles The strains of G abietina cannot be distinguished by their morphological characteristics positive
  • Phoma species developing on leaves Wheat spikelets covered with the pycnidia The pycnidia of Phoma species The pycnidia of Phoma species often develop Two pycnidia of Phoma species Unicellular conidia of Phoma glomerata 10x40 Sporodochia of Epicoccum nigrum A closer view of a sporodochium
  • Pycnidia Phoma sp
  • Conidia of Ascochyta graminicola 10x40 Conidia of Phaeoseptoria vermiformis 10x40 Typical symptoms of speckled leaf blotch Advanced symptoms of speckled leaf blotch It is the dark pycnidia of S tritici that gives Under moist conditions white to buff colored cirrhi Conidia of S tritici Typical leaf symptoms of glume blotch
  • later It is critical to do both applications to get the disease under control in a tree Good disease control will likely require two applications of the fungicide for two consecutive years Cytospora canker is caused by the fungus Cytospora kunzei When this disease is present in a tree typically the lower branches are affected first but the needle browning begins at the end
  • Large spored variants of Ascochyta graminicola Phaeoseptoria leaf blotch symptoms Relatively large black pycnidia of P vermiformis Conidia of P vermiformis 10x40 A barley spike displaying the black spore masses Teliospores typical of Ustilago species 10x40 Teliospores typical of Tilletia species 10x40 Teliospores of Tilletia indica 10x40
  • pycnidia
  • The pycnidia of Phoma species often develop Two pycnidia of Phoma species Unicellular conidia of Phoma glomerata 10x40 Sporodochia of Epicoccum nigrum A closer view of a sporodochium Conidia of Epicoccum nigrum 10x40 Yellowish red lesion on an oat leaf Dense clusters of the fruiting structures

Videos
related videos for pycnidia

  • Fumigation for preventing storage pests.wmv
  • Septoria Leaf Blotch of Wheat To learn more about this video clip go to . This video clip was taken from Septoria Leaf Blotch of Wheat, one of the three teaching videos available in Volume 1 in The Biology of Fungal Pathogens DVD Series.
  • Rain transmission Septoria pycnidia.wmv
  • Septoria necrotization

Blogs & Forum
blogs and forums about pycnidia

  • “Ministerially, Siphonostely, Switchers, Profanely, Pyromania, Pycnidia, Ministerially, Siphonostely, Switchers, Profanely, Pyromania, Pycnidia,”
    — switchers trophoblast -agnus - Google Search, sites.univ-provence.fr

  • “Seil Natural History Group's Blog - Windows Live Approaching Melfort we discovered this new lichen below Cladonia floerkeana with its red pycnidia”
    — Seil Natural History Group's Blog - Windows Live,

  • “lesions age, black speckles (pycnidia = fruiting bodies that contain spores) can be seen Pycnidia. can produce numerous spores under extended wet periods during the spring”
    — Identifying Wheat Diseases for Proper Use of Foliar Fungicides, ipcm.wisc.edu

  • “Field Trip to Loch Oude and Melfort - Saturday 13th February - Windows Live Approaching Melfort we discovered this new lichen below Cladonia floerkeana with its red pycnidia”
    — Field Trip to Loch Oude and Melfort - Saturday 13th February,

  • “Irish republicans try to blow up Belfast police building. November 22, bad Toy soffits by yakima hirt pycnidia diagrammed hoy ensnarl tribometer hepatic spliced”
    — Christmas Appeal: How you can help the children of Iraq,

  • “They are usually pretty trouble free plants, but there are a few things that can go wrong with lavender (you may need a magnifying glass) will reveal very small black shapes called pycnidia emerging from the bark”
    — Lavender Diseases,

  • “Our fearless blog-leader had the book in the library next to her office. Fungi Imperfecti with Pycnidia, Acervuli and Stromata, Commonwealth”
    — Mystery liverwort fungus, chapter 3 :Cornell Mushroom Blog, blog.mycology.cornell.edu

  • “We've seen some gibberella and some of what we believe to be penicillium molds (not Pycnidia, the black specks seen on husks, cobs, kernels etc., are the spore producing”
    — Corn Ear Molds Showing Up " Brodbeck Seed,

  • “Pycnidia, and later perithecia, develop at or near the point of entry. Pycnidia occur in (Whip conditions on cut surfaces. In Zanzibar and Pemba, stands of”
    — Sumatra disease at Natural Remedies For You, natural-remedies-for-

Keywords
related keywords for pycnidia

Similar
similar for pycnidia