Phoma pinodella. [Descriptions of Fungi and Bacteria].

Author(s):  
G. C. Kinsey

Abstract A description is provided for Phoma pinodella. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: A pathogen contributory to causing (spring/summer) black stem of legumes (mainly Pisum and Trifolium), involving foot rot, leaf spots and stem lesions. Also opportunistically pathogenic on many other host plants. HOSTS: On leaves, stems, roots and seeds of a wide range of plants and other substrata. The main hosts are Pisum (pea) and Trifolium (clover) but also recorded on other Papilionaceae including Arachis, Cicer, Glycine, Lathyrus, Lens, Lupinus, Medicago, Phaseolus, Vicia and Vigna. Non-leguminous host plants include Beta, Casuarina, Coffea, Galanthus, Gossypium, Hordeum, Lactuca, Oryza, Petroselinum, Phlox, Triticum and Zinnia. Also reported from soil, hay and straw; however, many records require verification. GEOGRAPHICAL DISTRIBUTION: AFRICA: Nigeria, Tanzania. NORTH AMERICA: Canada, USA. SOUTH AMERICA: Argentina, Chile. ASIA: Bangladesh, India, Iraq, Syria. AUSTRALASIA: Australia, New Zealand. EUROPE: Denmark, Germany, Great Britain, Ireland, Netherlands, Poland, Russian Federation, Sweden. Widespread, particularly in temperate regions. Thought to be of American origin (BOEREMA et al., 1993). TRANSMISSION: Plants are infected from seed or by rainsplash-dispersed conidia or from persistent fungal inoculum present on plant debris in the soil. The recent report of a teleomorphic state for this fungus raises the possibility that wind dispersal may also be involved (BOWEN et al., 1997). Cool, moist conditions favour infection but it is suppressed by warm weather.

Author(s):  
G. C. Kinsey

Abstract A description is provided for Phoma medicaginis. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: Probably an opportunisitic pathogen and saprobe, while var. macrospora is more strongly pathogenic towards M. sativa. Contributory to causing (spring) black stem of forage legumes (mainly Medicago, possibly also Melilotus and Trifolium), involving seedling blight, stem canker, root rot and leaf spot. It develops as long dark lesions on petioles and stems, later encircling whole stems and spreading to cause crown and foot rot. HOSTS: On leaves, petioles, stems, roots and seeds of possibly a wide range of plants. However, many records require verification. The main host plant is Medicago sativa (alfalfa, lucerne), but also recorded on Melilotus and other Papilionaceae, including Arachis, Cicer, Glycine, Lathyrus, Lens, Phaseolus, Pisum, Trifolium, Trigonella, Vicia and Vigna. Non-leguminous host plants include Anacardium, Annona, Beta, Brassica, Chrysanthemum, Curcuma, Cyperus, Fragaria, Juniperus, Lycopersicon, Madhuca, Nicotiana, Phlox, Saccharum, Solanum, Striga, Themeda, Zea and Zinnia. Also reported from soil and indeterminate plant debris and from human scalp. While many records refer only to P. medicaginis s. lat., records for var. macrospora appear to indicate that it occurs more specifically on M. sativa. GEOGRAPHICAL DISTRIBUTION: AFRICA: Egypt, Kenya, Libya, Malawi, Nigeria, Sudan, Zambia, Zimbabwe. NORTH AMERICA: Canada, USA. CENTRAL AMERICA: West Indies. SOUTH AMERICA: Argentina. ASIA: Bangladesh, Bhutan, India, Saudi Arabia, Syria, Thailand. AUSTRALASIA: Australia, New Zealand. EUROPE: Denmark, Great Britain, Italy, Latvia, Netherlands. TRANSMISSION: Soil-borne on plant debris with infection of new plants by rain splash. Probably also seed-borne if pods become infected.


Author(s):  
J. E. M. Mordue

Abstract A description is provided for Pestalotiopsis mangiferae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Mangifera indica; also on Anacardium occidentale, Combretum decandrum, Eucalyptus spp., Mimusops spp., Vitis vinifera and many other unrelated host plants. DISEASE: Grey leaf spot of Mangifera indica. The spots vary in size from a few mm to several cm in length, are usually sharply delimited by a dark, raised border, and are silvery grey above and grey to brown below; leaf spots on other hosts are similar. Brown spot or rot of mango fruits is also known. GEOGRAPHICAL DISTRIBUTION: Ghana, Nigeria, Sierra Leone, Tanzania, Uganda, Zaire, Zambia; Bangladesh, Brunei, Burma, Hong Kong, India, Malaysia, Nepal, Sabah, Solomon Islands, Sri Lanka; Australia; Dominican Republic; Venezuela. TRANSMISSION: Inoculation studies with conidia and mycelium have shown P. mangiferae to be a weak parasite, capable of infecting young injured leaves, injured fruits, older uninjured leaves and healthy fruits if in contact with diseased tissue (35, 378; 40, 421). It has been isolated from soil, but the possibility of transmission through soil has not been investigated.


Author(s):  
J. E. M. Mordue

Abstract A description is provided for Ustilago hypodytes. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: A wide range of grasses, including species of Agropyron (many), Ammophila, Brachypodium, Bromus, Calamagrostis, Diplachne, Distichlis, Elymus (many), Festuca, Glyceria, Hilaria, Hordeum, Haynaldia, Lygeum, Melica, Orysopsis, Panicum, Phalaris, Phleum, Poa (many), Puccinellia, Secale, Sitanion, Sporobolus, Stipa (many), and Trisetum. DISEASE: Stem smut of grasses. GEOGRAPHICAL DISTRIBUTION: Chiefly a temperate species found in Europe (including Denmark, Finland, France, Germany, Hungary, Italy, Romania, Sweden, Switzerland, UK, USSR, Yugoslavia) and North America (Canada, USA) and extending to central and South America (Argentina, Peru, Uruguay), N. Africa (Libya, Morocco, Tunisia), Japan, Australia and New Zealand. TRANSMISSION: Not fully understood, though inoculation experiments have demonstrated that infection occurs in mature vegetative plants (possibly through meristematic tissue), not seeds or flowers (22, 240; 24, 511). Once established, infection is systemic, probably overwintering in the root system and spreading by vegetative multiplication of host plants as well as from plant to plant (24, 511; 19, 720).


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):  
G. M. Waterhouse

Abstract A description is provided for Pythium intermedium. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On a wide range of hosts represented by the following families: Begoniaceae, Bromeliaceae, Chenopodiaceae, Compositae, Coniferae, Cruciferae, Euphorbiaceae, Geraniaceae, Gramineae, Leguminosae, Liliaceae, Linaceae, Moraceae, Onagraceae, Ranunculaceae, Rosaceae, Solanaceae, Ulmaceae, Violaceae; also in the Equisetales and Filicales. DISEASES: Damping-off of seedlings, foot rot and root rot of ornamentals, occasionally of crop plants and trees. GEOGRAPHICAL DISTRIBUTION: Asia (China); Australia & Oceania (Hawaii); Europe (England, Belgium, France, Germany, Holland, Sweden, U.S.S.R.); North America (U.S.A.); South America (Argentina). TRANSMISSION: A common soil inhabitant.


Author(s):  
D. Brayford

Abstract A description is provided for Cylindrocarpon olidum var. olidum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Wide range. At IMI there are records on: Asparagus, Camellia, Cocos, Cordylina, Heterodera (nematode), Medicago saliva, Narcissus, Pelargonium, Picea, Pinus, Pyrus, Secale, Solanum.DISEASE: Root rotting. GEOGRAPHICAL DISTRIBUTION: Africa: Ghana, Zimbabwe; Australasia: Australia; Europe: Germany, Great Britain; North America: Canada, Honduras, USA. TRANSMISSION: Soil-borne; slimy spores are probably spread by water.


Author(s):  
Yu. Ya. Tykhonenko

Abstract A description is provided for Puccinia aegopodii. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: Rust of Aegopodium species only. HOSTS: Aegopodium podagraria, A. alpestre (Umbelliferae) (eastern part of the range). GEOGRAPHICAL DISTRIBUTION: ASIA: China, Republic of Georgia, Kazakhstan, Kirgizia, Russia (Altai krai, Omsk, Novosibirsk, Tomsk, Yakut Republic (Siberia)). EUROPE: Austria, Belarus, Belgium, Denmark, Finland, Germany, Great Britain, Hungary, Ireland, Italy, Lithuania, Netherlands, Norway, Poland, Romania, Russia (Bashkir Republic, Ivanovo, Karelia Republic, Kursk, Leningrad, Moscow, Nizhni Novgorod, North Ossetia Republic, Samara, Saratov, Tatar Republic, Voronezh, Vyatka), Sweden, Switzerland, Ukraine. TRANSMISSION: No detailed studies have been reported; teliospores are presumably dispersed by air currents and then germinate to produce basidia with basidiospores, which re-infect the host plants.


Author(s):  
Yu. Ya. Tykhonenko

Abstract A description is provided for Puccinia prostii. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: Rust of Tulipa species only. HOSTS: Tulipa australis, T. biebersteiniana, T. florenskyi, T. julia, T. quercetorum, T. schmidtii, T. sylvestris, T. wilsoniana (Liliaceae). GEOGRAPHICAL DISTRIBUTION: AFRICA: [North Africa]. ASIA: Armenia, Azerbaijan, Iran, Pakistan, Palestine. EUROPE: France, Great Britain, Greece, Italy, Romania, Ukraine, former Yugoslavia. TRANSMISSION: No detailed studies have been reported; teliospores are presumably dispersed by air currents and then germinate to produce basidia with basidiospores, which re-infect the host plants; the fungus might also survive in bulbs of the infected plant.


Author(s):  
Yu. Ya. Tykhonenko

Abstract A description is provided for Uromyces valerianae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: Rust of Valeriana species only. HOSTS: Valeriana alliarifolia, V. dioica, V. dubia, V. officinalis, V. sambucifolia, V. sisymbriifolia, V. stolonifera, V. transsylvanica (Valerianaceae). GEOGRAPHICAL DISTRIBUTION: AFRICA: [North Africa], South Africa. ASIA: Azerbaijan, Republic of Georgia. EUROPE: Belarus, Belgium, Denmark, Finland, France, Germany, Great Britain, Hungary, Ireland, Italy, Lithuania, Norway, Poland, Romania, Russia (Vyatka), Spain, Sweden, Switzerland, Ukraine. TRANSMISSION: Aeciospores and urediniospores are disseminated by air currents; teliospores germinate after hibernation to produce basidia with basidiospores, which re-infect the host plants.


Author(s):  
A. Sivanesan

Abstract A description is provided for Drechslera nobleae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Lolium and certain interspecific hybrids of Lolium. DISEASE: Leaf spots, yellowing and die-back of rye grass. Also seed-borne. GEOGRAPHICAL DISTRIBUTION: Australia, Great Britain, New Zealand, USA. TRANSMISSION: By air-borne conidia.


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