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

Author(s):  
P. M. Kirk

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).

Author(s):  
T. V. Andrianova

Abstract A description is provided for Septoria paeoniae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: Leaf blotch (ANON., 1984); foliar disorders; reduction of vitality. HOSTS: Paeonia broteri, P. daurica, P. herbacea, P. officinalis, P. peregrina, P. sinensis (Paeoniaceae). [Type host -P. sinensis.] GEOGRAPHICAL DISTRIBUTION: Asia: Armenia, Azerbaijan, Republic of Georgia. Europe: Belarus, Belgium, Denmark, Estonia, France, Germany, Latvia, Lithuania, Netherlands, Norway, Portugal, Romania, Russia, Spain, UK, Ukraine. North America: Canada, USA. TRANSMISSION: Not reported, but almost certainly by air-borne or splash dispersed conidia, also from infected plant débris.


Author(s):  
Michèle A. J. Williams

Abstract A description is provided for Acremonium apii. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Apium graveolens. DISEASE: Brown spot of celery. The fungus causes brown lesions most noticeable on the petiole. GEOGRAPHICAL DISTRIBUTION: Europe: British Isles; North America: Canada, USA (Colorado, Connecticut, New York). TRANSMISSION: Probably from plant debris (39, 207).


Author(s):  
M. A. J. Williams

Abstract A description is provided for Cercospora zebrina. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Members of the Leguminosae including Medicago arabica, M. denticulata, M. saliva, Meliotus alba, Trifolium agrarium, T. alexandrinum, T. alpestre, T. carnum, T. fragiferum, T. hirtum, T. hybridum, T. incarnatum, T. pratense, T. repens, T. resupinatum, T. subterraneum. DISEASE: Leaf spot (may also affect stems). GEOGRAPHICAL DISTRIBUTION: Africa: Egypt, Mauritius, Morocco, Sudan, Uganda, Zambia; Asia: India, Israel, Nepal, Pakistan, UAE, USSR, Yemen; Australasia & Oceania: Australia; Europe, British Isles, Cyprus, Czechoslovakia, Denmark, Germany, Malta, Rumania, Yugoslavia; North America: Canada, Haiti, Jamaica, USA; South America: Brazil, Venezuela. TRANSMISSION: By infected plant debris (64, 1164); conidia may be wind disseminated (42: 468).


Author(s):  
P. M. Kirk

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.


Author(s):  
A. Sivanesan

Abstract A description is provided for Mycosphaerella graminicola. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Loliumperenne, Secale vulgare, Triticale, Triticum spp. DISEASE: Leaf spot or speckled leaf blotch of wheat. GEOGRAPHICAL DISTRIBUTION: Africa: Algeria, Angola, Ethiopia, Kenya, Morocco, South Africa, Tanzania. Asia: Afghanistan, China, Cyprus, India, Iran, Iraq, Israel, Japan, Korea, Lebanon, Pakistan, Saudi Arabia,? Syria (66, 2306), Tunisia, Turkey, USSR. Australasia & Oceania: Australia, New Zealand. Europe: Austria, Belgium, Bulgaria, Czechoslovakia, Denmark, France, Germany, Great Britain, Greece, Hungary, Italy, Netherlands, Norway, Poland, Portugal, Rumania, Spain, Sweden, Switzerland, USSR, Yugoslavia. North America: Canada, Mexico, USA. Central America: El Salvador, Guatemala. South America: Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Uruguay (CMI Distribution Map 397, ed. 3, 1986). TRANSMISSION: By windborne ascospores and conidia, by infected plant debris and seeds (38, 687; 42, 11; 55, 3524; 57, 2486).


Author(s):  
E. Punithalingam

Abstract A description is provided for Septoria leucanthemi. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Chrysanthemum leucanthemum, C. maximum, C. segetum. Also by inoculation on Chrysanthemum parthenium, C. roseum, Tagetes patula, Centaurea cyanus, Achillea ptarmica, Helichrysum sp., Helianthus annuus. DISEASE: Leaf spot of ox-eye daisy (Chrysanthemum leucanthemum[Leucanthemum vulgare]), shasta daisy (C. maximum) and corn marigold (C. segetum). The disease is sometimes referred to as leaf blotch of shasta daisy (Wormald, 1925). Symptoms appear on leaves of all ages and are of two types: dark brown circular or semicircular zonate lesions with a central sunken pale or whitish area surrounded by somewhat elevated concentric markings and measuring 0.5-2 cm wide; shot-hole spot usually appearing during extremely wet conditions, where the central pale depressed area falls off leaving behind spots with abundant pycnidia around the rim of the shot-hole. In severe cases leaves turn yellow and completely wither. GEOGRAPHICAL DISTRIBUTION: Africa (South Africa); Asia (U.S.S.R.); N. and S. America (Canada, U.S.A., Argentina); Europe (Denmark, France, Germany, Great Britain, Italy, Norway, Portugal, Spain, Yugoslavia. (Literature; Herb. IMI). TRANSMISSION: The pathogen may be transmitted by splashing rain drops and by contact. It remains in a viable condition in diseased plant debris and serves as the inoculum for the following year.


Author(s):  
B. C. Sutton

Abstract A description is provided for Septoria tritici[Mycosphaerella graminicola]. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Triticum aestivum and other Triticum spp., as well as Secale vulgare (Sprague, 1950). DISEASE: Leaf spot (or speckled leaf blotch) of wheat. Occurs chiefly on leaves forming light green to yellow spots between the veins. A speckled appearance is later produced when the pycnidia develop in the leaf and sheath lesions which are various shades of brown, elongated, linear to elliptical, sometimes vein-limited, with a diffuse margin, variable in size but not normally exceeding 1 cm in length. Where infection is severe, shrivelling of leaves, defoliation and invasion of the crown tissues may result in weakened or dead plants. Seedlings may also be killed. GEOGRAPHICAL DISTRIBUTION: Africa (Algeria, Ethiopia, Kenya, Morocco, South Africa, Tanzania); Asia (Afghanistan, China, India, Iran, Iraq, Israei, Japan, Korea, Pakistan, Turkey, U.S.S.R.); Australasia (Australia, New Zealand, Tasmania); Europe (Austria, Belgium, Bulgaria, Czechoslovakia, Cyprus, Denmark, France, Germany, Great Britain, Greece, Italy, Netherlands, Norway, Poland, Portugal, Rumania, Spain, Sweden, Switzerland, Turkey, U.S.S.R., Yugoslavia); North America (Canada, U.S.A.); Central America (Guatemala); South America (Argentina, Bolivia, Brazil, Chile, Uruguay). (CMI Map 397, 1963.) TRANSMISSION: By seed which may be contaminated with infected chaff and plant debris (Noble et al., 1958). The fungus has been intercepted in the United States on stem and leaf fragments in shiploads of wheat grain from Australia (24: 308). Fragments of infected leaves maybe wind dispersed and seed sown with infected leaf debris transmits the disease in the field (38: 687; 42: 11). Spores produced on infected plant residues lose their viability after burial for 1 month in soil (Bilu & Bever, 1957). Pycnidia survive the summer in volunteer wheat plants or in leaves and leaf sheaths lying on the ground, and there are records of conidia from stacked wheat remaining viable for 5-18 months according to the amount of exposure to rain (Weber, 1922; Bilu & Bever, 1957; 36: 389; 38: 657).


Author(s):  
A. K. Sarbhoy

Abstract A description is provided for Rhizopus microsporus. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: In soil and plant debris, also pathogenic for animals (causing mycoses). DISEASES: Man and Animals. A cause of phycomycosis (syn. 'mucormycosis') in man; see Neame & Rayner (RMVM 4, 882). On the horse, swine (generalized infection) and bovine fetus (fide Dodge (1936, p. 115) as R. equinus) and gastric infection in the pig (Gitter & Austwick, Vet. Rec. 71: 6-11, 1959). GEOGRAPHICAL DISTRIBUTION: European countries and South Africa. TRANSMISSION: By air-borne sporangiospores.


Author(s):  
T. V. Andrianova

Abstract A description is provided for Septoria antirrhini. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: Leaf spot, leaf drying, defoliation. HOSTS: Antirrhinum antirrhiniflorum, A. majus, A. siculum (Scrophulariaceae). GEOGRAPHICAL DISTRIBUTION: AFRICA: South Africa. NORTH AMERICA: Canada, USA. SOUTH AMERICA: Chile, Colombia. ASIA: Armenia, Azerbaijan, China, Iran, Israel. AUSTRALASIA: Australia, New Zealand. EUROPE: Bulgaria, Czech Republic, Estonia, France, Germany, Great Britain, Hungary, Ireland, Italy, Netherlands, Portugal, Romania, Ukraine, former Yugoslavia. TRANSMISSION: Not reported, but almost certainly by airborne, splash-dispersed conidia from infected plant debris and seed stocks. The disease is significantly more severe under wet weather conditions (SINADSKIY et al., 1985).


Author(s):  
T. V. Andrianova

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).


Sign in / Sign up

Export Citation Format

Share Document