Cladosporium allii. [Descriptions of Fungi and Bacteria].

1986 ◽  
Author(s):  
P. M. Kirk
Keyword(s):  
Geographical Distribution ◽  
British Isles ◽  
Leaf Blotch

Abstract A description is provided for Cladosporium allii. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Allium canadense, A. porrum, A. sativum, A. schoenoprasum and A. vineale. DISEASE: Leaf blotch. GEOGRAPHICAL DISTRIBUTION: Europe (British Isles). TRANSMISSION: Possibly from contaminated debris.

Cladosporium allii-cepae. [Descriptions of Fungi and Bacteria].

1986 ◽  
Author(s):  
P. M. Kirk
Keyword(s):  
Geographical Distribution ◽  
Allium Cepa ◽  
British Isles ◽  
Plant Debris ◽  
Leaf Blotch

Abstract A description is provided for Cladosporium allii-cepae[Mycosphaerella allii-cepae]. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOST: Allium cepa DISEASE: Leaf blotch. GEOGRAPHICAL DISTRIBUTION: Europe (British Isles). TRANSMISSION: Possibly from contaminated debris but no clear evidence (61, 6765). There is no evidence that the pathogen overwinters on plant debris (62, 5055).

Asperisporium vitiphyllum. [Descriptions of Fungi and Bacteria].

2014 ◽  
Author(s):  
T. V. Andrianova
Keyword(s):  
South Africa ◽  
Vitis Vinifera ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Conservation Status ◽  
Krasnodar Krai ◽  
Leaf Blotch ◽  
Brown Leaf ◽  
Stavropol Krai

Abstract A description is provided for Asperisporium vitiphyllum, a colonizer of living leaves, causing a leaf spot or brown leaf blotch and leaf drying. Some information on its habitat, dispersal and transmission, and conservation status is given, along with details of its geographical distribution (Africa (Morocco and South Africa), Asia (Armenia, China, Georgia, Iran, Iraq, Israel, Kazakhstan (Almaty oblast), Kyrgyzstan, Pakistan, Tajikistan, Turkmenistan and Uzbekistan), Europe (Moldova, Russia (Krasnodar krai, Leningradskaya oblast, Stavropol krai) and Ukraine)) and hosts (including Vitis vinifera).

Ascochyta paspali. [Descriptions of Fungi and Bacteria].

1985 ◽  
Author(s):  
E. Punithalingam
Keyword(s):  
New Zealand ◽  
North America ◽  
South America ◽  
Geographical Distribution ◽  
Paspalum Dilatatum ◽  
Leaf Blotch ◽  
Rain Splash

Abstract A description is provided for Ascochyta paspali. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Paspalum dilatatum (dallis grass), (and P. floridanum var. glabratum). DISEASE: Leaf blotch or streak of Paspalum spp. The visible symptoms are yellowish brown to grey lesions developing at the leaf tip and subsequently involving the entire leaf and sometimes the sheath. GEOGRAPHICAL DISTRIBUTION: Australasia (New Zealand); South America (Argentina) and North America (? USA). TRANSMISSION: The fungus occurs in Paspalum as an endophyte (Buchanan, 1984). The mycelium has been reported to grow systemically in xylem vessels of roots, leaves and inflorescences. Conidia are dispersed by rain splash and the fungus has been isolated from seeds. It has been suggested that the fungus might overwinter as mycelium within roots, crowns and infected seeds.

Rhynchosporium secalis. [Descriptions of Fungi and Bacteria].

1973 ◽  
Author(s):  
H. Owen
Keyword(s):  
Geographical Distribution ◽  
Secale Cereale ◽  
Seed Transmission ◽  
Small Extent ◽  
Rhynchosporium Secalis ◽  
Water Droplets ◽  
Leaf Blotch

Abstract A description is provided for Rhynchosporium secalis. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Hordeum sativum, Secale cereale, Gramineae, Agropyron, Bromus, Hordeum and Lolium. DISEASE: Leaf blotch or scald of barley (Hordeum sativum), rye (Secale cereale) and various other Gramineae, especially species of Agropyron, Bromus, Hordeum and Lolium. Mainly leaves and sheaths are attacked; also glumes and awns of barley. Lesions on leaves are lenticular, usually 1-2 cm long, often confluent. The first sign of infection is watersoaking, then the area becomes bluish-grey, and later the central part becomes pale greyish-brown, with a distinct dark brown or violet brown border, except on rye where no dark border is formed. GEOGRAPHICAL DISTRIBUTION: Widespread but mostly in temperate regions (CMI Map 383, ed. 3, 1970). TRANSMISSION: Overwintering is largely on infected barley stubble remains and volunteer plants; spores are disseminated in water droplets (17, 22; 39, 300; 46, 1988; 49, 116; 51, 283, 2401). Seed transmission occurs to a small extent (38, 385; 39, 300; 43, 1225k; 51, 282; Kay & Owen, 1973a).

Urocystis colchici. [Descriptions of Fungi and Bacteria].

1988 ◽  
Author(s):  
J. E. M. Mordue
Keyword(s):  
North America ◽  
The Netherlands ◽  
Geographical Distribution ◽  
Infected Plant ◽  
British Isles ◽  
Plant Remains ◽  
Leaf Smut

Abstract A description is provided for Urocystis colchici. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Colchicum spp., including C. arenarium, C. autumnale, C. bornmulleri, C. latifolium, C. luteum, C. orientale and C. vernum. DISEASE: Leaf smut of Colchicum spp. GEOGRAPHICAL DISTRIBUTION: Asia: India, Japan, Turkey, USSR. Europe: widespread, including Austria, Belgium, the British Isles, Czechoslovakia, France, Germany, Hungary, Italy, the Netherlands, Poland, Romania, Spain, Sweden, Switzerland, Yugoslavia. North America: Canada, USA. TRANSMISSION: No detailed studies have been reported. Presumably ustilospores survive in infected plant remains and in the soil, and germinate to infect the new season's growth; also probably disseminated by infected or contaminated bulbs.

Bactrospora homalotropa. [Descriptions of Fungi and Bacteria].

2018 ◽  
Author(s):  
P. F. Cannon
Keyword(s):  
North America ◽  
Atlantic Ocean ◽  
Geographical Distribution ◽  
Canary Islands ◽  
Rain Forest ◽  
Conservation Status ◽  
British Isles ◽  
The West ◽  
Temperate Rain Forest ◽  
Ecological Continuity

Abstract A description is provided for Bactrospora homalotropa, found on tree trunks and branches, and woody twigs of shrubs, almost always on species with smooth, relatively basic bark. Some information on its associated organisms and substrata, habitat, dispersal and transmission, and conservation status is given, along with details of its geographical distribution (North America (USA (Maine, West Virginia)), Asia (Iran), Atlantic Ocean (Portugal (Azores, Madeira), Spain (Canary Islands)), Australasia (Australia (Tasmania)), Europe (Ireland, Norway, UK)). This species is routinely used in the British Isles as an indicator when making ecological assessments, specifically as an indicator of ecological continuity, particularly in the west of Ireland and the west of Scotland, and of oceanic and temperate rain forest.

Guignardia aesculi. [Descriptions of Fungi and Bacteria].

1993 ◽  
Author(s):  
E. Punithalingam
Keyword(s):  
Nova Scotia ◽  
North America ◽  
New Brunswick ◽  
Geographical Distribution ◽  
Horse Chestnut ◽  
Black Rot ◽  
Leaf Blotch ◽  
Main Host ◽  
Aesculus Glabra ◽  
Water Borne

Abstract A description is provided for Guignardia aesculi. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Aesculus glabra, A. hippocastanum (main host) (Hippocastanaceae). Several other species of Aesculus and subspecies including A. ambigua, A. arnoldiana, A. bushii, A. carnea, A. discolor, A. dupontii, A. hybrida, A. mississippiensis, A. mutabilis, A. neglecta, A. octandra, A. pavia, A. splendens, A. turbinata and A. woerlitzensis have been reported to be susceptible (Neely & Himelick, 1963; 50, 2509). DISEASE: Leaf blotch or black rot of Aesculus hippocastanum (horse chestnut) and other Aesculus species (5, 706; 28, 38; 64, 4521). GEOGRAPHICAL DISTRIBUTION: Europe (Austria, Belgium, France, Germany, Italy, Netherlands, Portugal, Romania, Switzerland, U.K., Yugoslavia); North America (Canada: Manitoba, New Brunswick, Nova Scotia, Ontario, Quebec; U.S.A. : Eastern U.S.A). TRANSMISSION: Presumably by water-borne conidia during wet conditions. Ascomata are produced on leaves left to over winter outside and both conidia and ascospores discharged from over wintered leaves have been reported to infect leaves of seedlings and produce blotch symptoms (Hudson, 1987).

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