Alternaria longissima. [Descriptions of Fungi and Bacteria].

Author(s):  
J. C. David

Abstract A description is provided for Alternaria longissima. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On pollen grains, husks and grains of numerous members of the Poaceae, such as Zea mays, Pennisetum typhoides, Saccharum officinarum and Oryza sativa; on seeds of Sesamum and Capsicum, and on diverse plant debris. DISEASE: None is normally caused in the natural environment, however it is reported as causing stem and leaf blight of sunflowers in Thailand (71, 5765), as well as a zonate leaf spot and stem necrosis of Sesamum (61, 5893). GEOGRAPHICAL DISTRIBUTION: Africa: Egypt, Malawi, Nigeria, Sierra Leone, Sudan, Tanzania, Zambia. C. & S. America: Cuba, Venezuela. N. America: Bermuda, USA (GA, NC). Asia: Bhutan, Brunei, India, Laos, Malaysia, Nepal, South Korea, Taiwan, Thailand. Europe: Ukraine. Australasia & Oceania: Australia (QLD, VIC), New Zealand, Solomon Islands (Guadalcanal, New Georgia). TRANSMISSION: By wind dispersal of airborne conidia as well as on seeds.

Author(s):  
J. C. David

Abstract A description is provided for Ulocladium atrum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Wood, seeds, stems, leaves of many different plants, soil. DISEASE: None. GEOGRAPHICAL DISTRIBUTION: Africa: Egypt, Libya, Sierra Leone. N. America: Canada, USA (California, Colorado, Kansas). S. America: Argentina, Chile. Asia: India, Iraq, Israel, Kuwait, Pakistan, Saudi Arabia, Turkey. Australasia: Australia (WA, VIC), New Zealand. Europe: Cyprus, Netherlands, Norway, Portugal, UK. TRANSMISSION: By wind dispersal of airborne conidia, and possibly through water, soil and plant debris.


Author(s):  
P. M. Kirk

Abstract A description is provided for Apiospora montagnei. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Acer, Agropyron, Ammophila, Andropogon, Arachis, Areca, Aristida, Arundinaria, Bambusa, Brassica, Capsicum, Carex, Chrysanthemum, Cicer, Cinnamomum, Coffea, Colocasia, Coriandrum, Cortaderia, Cucumis, Cupressus, Cynodon, Cyperus, Dactylis, Dendrocalamus, Desmostachya, Deschampsia, Dioscorea, Dolichos, Donax, Elaeis, Elymus, Eucalyptus, Eugenia, Fagus, Ficus, Fragaria, Fraxinus, Gossypium, Hippocratea, Holcus, Hordeum, Hyparrhenia, Ilex, Lactuca, Lens, Leucaena, Lycopersicon, Malus, Manihot, Musa, Myrica, Nectandra, Nicotiana, Ochlandra, Oryza, Oxytenanthera, Phalaris, Phenacoccus, Phragmites, Pinus, Pisum, Prunus, Psamma, Pseudotsuga, Pyrus, Ricinus, Rottboellia, Saccharum, Sambucus, Sesamum, Solanum, Sorindeia, Spartinia, Spiraea, Stylosanthes, Themeda, Theobroma, Triticum, Urtica, Vigna, Vitis, Zea; also from air, animals, hay, food (bread, dried peas), molasses, soil and plant debris. DISEASE: None as a primary pathogen of plants; frequently encountered as a secondary invader or as a saprophyte. GEOGRAPHICAL DISTRIBUTION: AFRICA: Gambia, Ghana, Kenya, Malawi, Mauritius, Namibia, Nigeria, Portugal (Azores), Sierra Leone, Tanzania, Togo, Uganda, Zambia, Zimbabwe. ASIA: Burma, China, Hong Kong, India, Indonesia, Japan, Nepal, Pakistan, Papua New Guinea, Malaysia (Peninsular Malaysia, Sabah), Philippines, Sri Lanka, Thailand. AUSTRALASIA & OCEANIA: Australia, Fiji, New Zealand, Solomon Islands, USA (Hawaii). EUROPE: Belgium, Cyprus, Czechoslovakia, Eire, France, Germany, Greece, Italy, Netherlands, Portugal, Rumania, Spain, Sweden, Turkey, UK, USSR. NORTH AMERICA: Canada, USA. CENTRAL AMERICA & WEST INDIES: Cuba, Jamaica, Windward Islands. SOUTH AMERICA: Argentina, Venezuela. TRANSMISSION: By unknown means.


Author(s):  
G. Morgan-Jones

Abstract A description is provided for Leptosphaeria michotii. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Saccharum officinarum and a variety of other monocotyledonous genera including Agropyron, Agrostis, Andropogon, Arundo, Brachypodium, Calamagrostis, Carex, Cladium, Dactylis, Deschampsia, Festuca, Holcus, Iris, Juncus, Melica, Molinia, Nardus, Oryza, Panicum, Phalaris, Phleum, Scirpus, Triticum, Typha, Zea. DISEASE: Leaf spot of sugarcane (Booth, 1960), leaf blast of sugarcane (Yen & Chi, 1954). GEOGRAPHICAL DISTRIBUTION: Africa (Kenya, Sierra Leone, Uganda); Asia (Japan, Nepal); Australasia and Oceania (Australia, Fiji, New Caledonia, New Guinea, New Hebrides, Samoa, Solomon Islands); Europe (Belgium, Denmark, France, Germany, Great Britain, Italy, Sweden, Switzerland); Caribbean (Jamaica); South America (British Guiana). TRANSMISSION: Persisting in stubble and leaf debris. Conidia disseminated by rain-splash.


Author(s):  
A. Sivanesan

Abstract A description is provided for Cochliobolus pallescens. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Common on many graminicolous and non-graminicolous hosts. Important cereals and grasses include Eleusine, Hordeum, Oryza, Panicum, Paspalum, Pennisetum, Poa, Saccharum, Setaria, Sorghum, Triticum and Zea economically important dicot hosts include Allium (59, 4867), Arachis (53, 1647), Brassica (66, 3075), Canna, Calendula, Calotropis (44, 1832; 66, 3587), Carica (61, 5129), Cinnamomum, Citrus (68, 843), Coriandrum, Dahlia, Fagopyrum (64, 2425), Gaillardia, Hevea (56, 1257; 67, 5560), Musa (54, 4051), Solanum (50, 3484). DISEASE: Leaf spots of cereals, black point of wheat (44, 102), leaf spot and on stems of rubber (56, 1257; 67, 5560), ear rot of barley (62, 1005), rot of garlic (59, 4867). GEOGRAPHICAL DISTRIBUTION: Australia, Bangladesh, Brunei, Burma, Canada, Colombia, Cuba, Denmark, Egypt, Ethiopia, Fiji, Ghana, Guinea, Hong Kong, India, Indonesia, Iran, Jamaica, Japan, Kenya, Malaysia, Malawi, Nepal, Nigeria, Pakistan, Papua New Guinea, Peru, Philippines, Sierra Leone, Singapore, Solomon Islands, Somalia, Sri Lanka, Swaziland, Sudan, Taiwan, Tanzania, Thailand, Trinidad, USA, USSR, Venezuela, Windward Islands, Zambia, Zimbabwe. TRANSMISSION: By wind-borne conidia and seed-borne.


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):  
H. Y. M. Leung

Abstract A description is provided for Cercospora mikaniicola. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Mikania cordata, Mikania micrantha (Asteraceae). DISEASE: Leaf spot and stem canker. GEOGRAPHICAL DISTRIBUTION: Bangladesh, Brazil, Cuba, Colombia, Fiji, Guadalcanal, Hong Kong, India, Jamaica, Malaysia, Niue, Pakistan, Papua New Guinea, Puerto Rico, Samoa, Sierra Leone, Singapore, Solomon Islands, Tuvalu, USA (Florida), Vanuatu. TRANSMISSION: Conidia are presumably air-dispersed but there are no detailed studies.


Author(s):  
E. Punithalingam

Abstract A description is provided for Phoma sorghina. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Gramineae and all kinds of plants. Also isolated from soil, air and various animal sources. DISEASE: A minor leaf spot of cereals and grasses. The visible symptoms vary considerably; on sorghum leaves spots are usually irregular or rounded, yellowish-brown or grey with definite reddish-purple margins or indefinite in outline, reaching 1 cm or more in width. Pycnidia develop within spots on leaves, glumes and seeds. Also the fungus has been implicated with pre- and post-emergence death of seedlings of Macroptilium and Sylosanthes species (54, 1779) crown rot of bananas (61, 3556), leaf spot of Agave americana and stem rot of Euphorbia tirucalli (63, 3383), brown stem canker of Leucosperum cordifolium (56, 253). GEOGRAPHICAL DISTRIBUTION: A ubiquitous fungus occurring in tropical and subtropical regions. Africa (Botswana, Cameroon, Egypt, Ethiopia, Gambia, Kenya, Malawi, Mauritius, Mozambique, Nigeria, Senegal, Sierra Leone, South Africa, Sudan, Tanzania, Togo, Uganda, Zaire, Zambia, Zimbabwe); Asia (Bangladesh, Brunei, Burma, China, Hong Kong, India, Indonesia (Irian Jaya), Laos, Malaysia, Nepal, Pakistan, Saudi Arabia, Sri Lanka, Taiwan, USSR); Australasia and Oceania (Australia, Hawaii, New Zealand, Papua New Guinea, Solomon Islands); Europe (Germany, Portugal, Italy, UK); North America (Canada, USA); Central America and West Indies (Antigua, Guatemala, Honduras, Jamaica, Nicaragua, Puerto Rico, Trinidad); South America (Argentina, Bolivia, Brazil, Colombia). TRANSMISSION: Probably by contaminated seed; the fungus has been found on or isolated from several seed samples (1, 289; 33, 599; 47, 2153; 54, 1779; 60, 367; 61, 4102). In Taiwan P. sorghina has been found to be transmitted from seed to seedlings (62, 4281). The fungus has also been claimed to persist on trash and weed hosts and remain viable up to 1 yr but lose its viability after 2 yr storage on dry infected leaves (Koch & Rumbold, 1921).


Author(s):  
A. Sivanesan

Abstract A description is provided for Cochliobolus eragrostidis. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Acacia, Agave, Allium, Alysicarpus, Amorphophallus, Anacardium, Arachis, Areca, Billbergia, Calamus, Callitris, Calotropis, Camellia, Cananga, Capsicum, Citrullus, Citrus, Clerodendron, Cocos, Coffea, Colocasia, Cymbopogon, Dendrobium, Digitaria, Dioscorea, Dracaena, Durio, Elaeis, Eragrostis, Eucalyptus, Euphorbia, Furcraea, Gladiolus, Glycine, Gossypium, Heliconia, Hevea, Hystrix, Ipomoea, Kaempferia, Lycopersicon, Mangifera, Manihot, Mystroxylon, Musa, Neyraudia, Oldenlandia, Opuntia, Oryza, Panicum, Pennisetum, Pentas, Phalaenopsis, Phaseolus, Pinus, Polygala, Pueraria, Raphia, Raphanus, Rhodomyrtus, Rhoeo, Rottboellia, Saccharum, Sesamum, Sorghum, Spinacia, Sporobolus, Stylosanthes, Theobroma, Thrasya, Tradescantia, Trichosanthes, Triplochiton, Triticum, Vanda, Vigna, Zea, Zingiber and soil. DISEASE: Leaf spots. GEOGRAPHICAL DISTRIBUTION: Australia, Bangladesh, Belize, Brazil, Brunei, Burma, Colombia, Cuba, Fiji, Ghana, Guinea, Honduras, Hong Kong, India, Indonesia, Japan, Kenya, Kuwait, Malaysia, New Zealand, Nigeria, Papua New Guinea, Puerto Rico, Sierra Leone, Singapore, Solomon Islands, Sri Lanka, Trinidad, USA, Zambia, Zaire. TRANSMISSION: By wind-borne conidia.


Author(s):  
J. A. Lunn

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 and pathogenic for man and rabbit (alloxan-diabetic) (causing mycoses). DISEASE: Causes phycomycosis in man (RMVM 4, 882) and causes experimental phycomycosis in alloxan-diabetic rabbits (RMVM 7, 2628). It has also been reported from phycomycosis (stomach lesions) in a pig (Gitter & Austwick, 1959) but an isolate from this source proved to be R. rhizopodiformis (CMI Descript. 522). GEOGRAPHICAL DISTRIBUTION: India, Nigeria, Pakistan, Malaysia (Sabah), Sierra Leone, South Africa, UK. TRANSMISSION: By air-borne sporangiospores.


Author(s):  
J. F. Bradbury

Abstract A description is provided for Erwinia chrysanthemi. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On a number of widely different plants, including Aechmea fasciata, Aglaonema pictum, Ananas comosus, Begonia bertini, Chrysanthemum spp., Colocasia esculenta, Dahlia spp., Dianthus caryophyllus, Dieffenbachia spp., Euphorbia pulcherrima, Musa sp., Parthenium argentatum, Philodendron spp., Saccharum officinarum, Saintpaulia ionantha, Syngonium podophyllum and Zea mays. DISEASE: Symptoms are stunting, yellowing, wilting, necrosis of parenchyma or soft rotting according to host plant, pathotype and environmental conditions. Stunting and wilting usually appear on Begonia, Chrysanthemum, carnation, Dahlia and poinsettia. Rots appear on leaves of Aechmea, Philodendron and Saintpaulia, while various other parts show rotting with other hosts. On sugarcane a leaf mottle is produced. GEOGRAPHICAL DISTRIBUTION: The species is probably world wide, but the different distributions of the strains or pathotypes (see below) must be distinguished as follows: Dianthus: Europe (CMI Map 425, ed. 1, 1967) to which should be added Italy (46, 3461), USA (47, 2498) and New Zealand (52, 3341); Zea: Egypt, Sudan, Rhodesia, S. Africa, India, USA, France, Italy, possibly Greece; Chrysanthemum: UK, Germany, Italy, Canada, USA, Japan; Dahlia: Netherlands, Romania; Dieffenbachia: Germany, Italy, USA; Saintpaulia: France, Germany, USA; Begonia: Netherlands; Aechmea: Italy; Ananas: Malaysia; Colocasia: Solomon Islands; Musa: Central America and probably most other banana-growing areas; Philodendron, Parthenium, Euphorbia and Aglaonema: all confined to USA; Saccharum: Australia (Qd., NSW). TRANSMISSION: Usually in or on vegetative propagating material. Cuttings and setts from infected plants are frequently infected. Cutting knives may carry inoculum to healthy material. Transmission in soil and planting medium is also possible. Serious outbreaks have occurred after holding a large number of cuttings together in water prior to planting. The sugarcane pathogen is rapidly spread by flood water (48, 2533). Maize stalk rot is carried by water splash. It is often associated with overhead irrigation (48, 1675; 55, 204).


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