Entyloma ficariae. [Descriptions of Fungi and Bacteria].

Author(s):  
J. E. M. Mordue

Abstract A description is provided for Entyloma ficariae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Ranunculus ficaria and other species of Ranunculus; R. acris, R. auricomus, R. bongardii, R. cassubicus, R. eremogenes, R. macounii, R. montanus, R. multifidus, R. nemorosus, R. occidentalis, R. oreophilus, R. pennsylvanicus, R. polyanthemos, R. repens, R. sardous, R. scleratus, R. septentrionalis; there are occasional records for other Ranunculaceae (Anemone, Thalictrum). DISEASE: Leaf spot or white smut of Ranunculus species. Infected plants often show slightly smaller leaves and fewer flowers than uninfected. Although the smut is not systemic, it is common for almost every leaf of a plant to develop spots and for disease to persist within a small area year after year. GEOGRAPHICAL DISTRIBUTION: Widely distributed in north temperate regions. Asia: Japan, Turkey, USSR; Europe: Austria, Belgium, Czechoslovakia, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Italy, Netherlands, Norway, Poland, Portugal, Romania, Spain, Sweden, Switzerland, UK, USSR; North America: Canada, USA (33: 450 & 634; Vanky, 1985). TRANSMISSION: Ustilospores survive in infected plant remains in soil and germinate, chiefly in spring, to infect the new seasons leaves. Conidia are disseminated by wind and rain and contribute to the spread of disease throughout the growing season.

Author(s):  
J. E. M. Mordue

Abstract A description is provided for Entyloma serotinum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Symphytum spp., including S. asperrimum, S. bulbosum, S. cordatum, S. officinale, S. ottomanum and S. tuberosum; Borago officinalis; also recorded on Amsinckia, Lappula and Mertensia spp. (in USA) and Pulmonaria (in Europe, but see 64, 4163). DISEASE: Leaf spot of Symphylum, less frequently (though with similar symptoms) of other members of the Boraginaceae.GEOGRAPHICAL DISTRIBUTION: Africa: Algeria. Asia: Israel, USSR (Republic of Georgia). Australasia: New Zealand. Europe: widespread, including Austria, British Isles, Czechoslovakia, Denmark, France (including Corsica), Germany, Hungary, Italy, Netherlands, Poland, Portugal, Romania, Spain, Switzerland, USSR (Latvia), Yugoslavia. North America: USA. TRANSMISSION: Ustilospores survive on infected plant remains and in soil, and germinate to infect seedlings and the new seasons's leaves. In Europe conidia may also over-winter and initiate new infections in spring (Kaiser, 1936). During the growing season, conidia are disseminated by air currents and water-splash.


Author(s):  
J. E. M. Mordue

Abstract A description is provided for Entyloma calendulae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Calendula officinarum, also C. aegyptiaca, C. algeriensis, C. arvensis, C. persica. DISEASE: Leaf spot of Calendula. GEOGRAPHICAL DISTRIBUTION: Widely distributed in Europe including Scandinavia and USSR (Latvia); around the Mediterranean (Algeria, Israel, Tunisia, Turkey); North America (USA), South America (Argentina, Chile, Uruguay); Australia (New South Wales, Western Australia), New Zealand. TRANSMISSION: Ustilospores survive on infected plant remains in soil and germinate to infect the new crop. Overwintering on self-sown seedlings is also possible.


Author(s):  
J. E. M. Mordue

Abstract A description is provided for Entyloma calendulae f. dahliae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Dahlia variabilis, D. coccinia, D. pinnata; cultivated dahlia. DISEASE: Leaf spot of Dahlia. GEOGRAPHICAL DISTRIBUTION: Widely distributed in Europe including Finland and Sweden; Africa; North America (USA); Central and South America and West Indies (Argentina, Brazil, Colombia, El Salvador, Guatemala, Jamaica, Venezuela); Asia (Burma, India, Indonesia, Israel, Japan, Malaysia, Nepal, Pakistan, Sri Lanka, Papua New Guinea); Australia and New Zealand. CMI Map 114, ed. 4, 1983. TRANSMISSION: Soil-borne. Overwinters as ustilospores buried in plant debris; not transmitted by seed or in tubers, although spread by soil attached to tubers is possible (6, 97; 17, 655; 41, 603; 49, 1050); mature ustilospores are capable of remaining viable for a long period when dry (16, 304). Conidia contribute to dissemination during the growing season (49, 1050).


Author(s):  
J. E. M. Mordue

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.


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):  
J. E. M. Mordue

Abstract A description is provided for Thecaphora solani. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Species of Solanum, including S. tuberosum, S. andigenum and S. stoloniferum; found on clones of S. ajanhuiri, S. curtilobum, S. chaucha, S. goniocalyx, S. phureja, S. stenotomum and S. tuberosum subsp. andigena in the Potato Germ Plasm Bank, Peru (59, 2318); also on Lycopersicon.DISEASE: Potato smut. Infection normally commences in meristematic regions in young shoots, underground portions of stems (commonly at the base of a stem, where it joins the roots), stolons and eventually in tubers, and the resultant galls increase in size throughout the growing season (59, 5337). In tomato plants, hypertrophy and gall formation occur at the junction of stems and roots. GEOGRAPHICAL DISTRIBUTION: North America: Mexico. South America: Bolivia, Colombia, Ecuador, Peru, Venezuela. See CMI Distribution Map 214 (ed. 2, 1967). TRANSMISSION: By infected tubers, also soilborne, the ustilospores released into soil by disintegration of infected plant parts and surviving there.


Author(s):  
T. V. Andrianova

Abstract A description is provided for Septoria pistaciae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: Leaf spot. May cause leaf mortality and defoliation (TETEREVNIKOVA-BABAYAN, 1962). Septoria fruit spot (MICHAILIDES, 1997). HOSTS: Pistacia exotica, P. integerrima, P. lentiscus, P. vera (Anacardiaceae). GEOGRAPHICAL DISTRIBUTION: NORTH AMERICA: USA (California). ASIA: Armenia, Republic of Georgia, India, Israel, Kazakhstan, Kirgizstan, Syria, Tadjikistan, Turkey, Turkmenistan, Uzbekistan. EUROPE: Albania, France, Greece, Italy, Portugal, Ukraine. TRANSMISSION: The fungus is transferred from infected plant debris by airborne or splash-dispersed conidia. Conidia of S. pistaciae overwinter on fallen leaves and in cracks of bark (TETEREVNIKOVA-BABAYAN, 1962).


Author(s):  
J. E. M. Mordue

Abstract A description is provided for Entyloma australe. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Physalis peruviana and other species of Physalis. Occasionally on other members of the Solanaceae, including Browallia, Petunia and Quincula spp., Solanum nigrum, S. triflorum and, rarely, on Lycopersicon. DISEASE: White smut of Physalis. Infection occurs mainly on the leaves, but is occasionally found on stems and other vegetative parts. GEOGRAPHICAL DISTRIBUTION: Africa: Ethiopia, Kenya, Malawi, Mauritius, Mozambique, South Africa, Sudan, Tanzania, Uganda, Zambia, Zimbabwe. Asia: China, India, Iran, Japan, Pakistan, Taiwan. Australasia: Australia, New Zealand. Central America & West Indies: Dominican Republic, Puerto Rico. North America: Canada, USA. South America: Argentina, Brazil, Colombia, Uruguay (CMI Map 587, ed. 1, 1988). TRANSMISSION: Ustilospores survive on infected plant remains and in soil, and germinate to infect the new season's crop. Conidia aid dissemination within the crop during the growing season.


Author(s):  
J. E. M. Mordue

Abstract A description is provided for Ustilago heufleri. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Erythronium oregonum, E. americanum, Tulipa sylvestris, T. edulis, T. eichleri, T. saxatilis and other species or hybrids of Tulipa and Erythronium.DISEASE: Leaf smut of Erythronium and Tulipa spp. GEOGRAPHICAL DISTRIBUTION: Asia: China, Turkey, USSR (Republic of Georgia). Europe: including Austria, British Isles, Czechoslovakia, Germany, Greece, Romania, Yugoslavia. North America: Canada, USA. TRANSMISSION: No recent detailed studies have been reported. Ustilospores survive on infected plant remains and in the soil and germinate to infect the new season's leaves, usually at the time of their emergence from the soil. The sporadic nature of disease outbreaks suggests that bulbs can carry infection which may remain latent for a period of several years.


Author(s):  
A. Sivanesan

Abstract A description is provided for Pyrenophora erythrospila. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Agrostis, Hordeum and Triticum. DISEASE: Leaf spot of bent grass and red top. GEOGRAPHICAL DISTRIBUTION: Australia, Europe, New Zealand, North America. TRANSMISSION: By wind-borne conidia.


Sign in / Sign up

Export Citation Format

Share Document