Fusarium oxysporum f.sp. cubense. [Descriptions of Fungi and Bacteria].

Author(s):  
C. V. Subramanian

Abstract A description is provided for Fusarium oxysporum f.sp. cubense. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On cultivated banana and abaca (Musa spp.) and wild spp. of Heliconia (Musaceae), esp. H. caribaea (42: 80); three species of grass (Paspalum fasciculatum, Panicum purpurascens andlxophorus unisetus), and Commelina diffusa (Commelinaceae) may serve as alternative hosts (Waite & Dunlap, 1953). DISEASES: Panama disease (vascular wilt) of banana (banana wilt) and vascular wilt in abaca (Musa textilis). GEOGRAPHICAL DISTRIBUTION: Widespread: Africa, Asia, Australasia and Oceania, C. America and W. Indies, N. & S. America (CMI Map 31). TRANSMISSION: Primarily soil-borne; possibly air-borne also. Pathogen may spread in infected leaf trash or soil and debris in surface flood-water. Infected planting material is another source of infection and spread.

Author(s):  
D. Brayford

Abstract A description is provided for Fusarium oxysporum f. sp. cubense. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Musa sp., Heliconia sp. DISEASE: Panama disease (vascular wilt) of banana. Also vascular wilt of abaca (Musa textilis). GEOGRAPHICAL DISTRIBUTION: Widespread in tropical and subtropical regions. Africa: Burundi, Cameroun, Canary Is., Ghana, Kenya, Madagascar, Malawi, Mauritius, Mozambique (50, 3049), Nigeria, Republic of South Africa, Rwanda, Sierra Leone, Tanzania (incl. Zanzibar), Uganda, Zaire. America: North: Florida (68, 905); South: Brazil, Costa Rica, Cuba (56, 4615), Dominica, Guadeloupe, Jamaica. Australasia: Australia, Brunei (51, 3059), Guam (60, 3258), India (68, 5699; 69, 657), Indonesia, Philippines, Sri Lanka, Taiwan, Thailand. IMI Distribution Map 31. TRANSMISSION: Through human transportation of infected planting material, plant debris or soil.


Author(s):  
D. Brayford

Abstract A description is provided for Fusarium oxysporum f. sp. fragariae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Fragaria (strawberry). DISEASE: Vascular wilt (or yellows). GEOGRAPHICAL DISTRIBUTION: Australasia: Australia (Queensland), Japan, Korea. TRANSMISSION: Infected planting material; movement of soil during cultivation. Local dispersal is via water flow and splash droplets containing macro- and microconidia.


Author(s):  
D. Brayford

Abstract A description is provided for Fusarium oxysporum f. sp. lycopersici. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Lycopersicon esculentum (tomato). May also infect other species of Lycopersicon. DISEASE: Vascular wilt. The fungus may also cause tomato fruit rot. GEOGRAPHICAL DISTRIBUTION: Widespread in tomato growing regions of the world. Africa: Kenya, Morocco, Nigeria, Republic of South Africa, Senegal, Tanzania, Tunisia. America: Argentina, Brazil, Canada, Cuba, Mexico, USA. Asia: China, India, Iran, Iraq, Israel, Japan, Korea, Pakistan. Australasia: Australia. Europe: Albania, Belgium, Bulgaria, France, Germany, Great Britain, Italy, The Netherlands, Spain, USSR. TRANSMISSION: The fungus is soil borne and may also be transmitted by seed (58, 3447; 67, 1486), planting material and locally by water flow.


Author(s):  
D. Brayford

Abstract A description is provided for Fusarium oxysporum f. sp. elaeidis. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Elaeis guineensis (Oil palm). May also infect E. oleifera, E. madagascariensis and E. melanococca. DISEASE: Vascular wilt. GEOGRAPHICAL DISTRIBUTION: West and central Africa: Cameroon, Congo, Ivory Coast, Nigeria, Zaire. Possibly Colombia. TRANSMISSION: Contaminated soil or plant material. Potentially by means of seed (52, 4182).


Author(s):  
D. Brayford

Abstract A description is provided for Fusarium oxysporum f. sp. melonis. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Cucumis melo (Muskmelon, Cantaloupe). DISEASE: Vascular wilt. GEOGRAPHICAL DISTRIBUTION: IMI Distribution Map 496. Africa: Morocco, Zimbabwe. Asia: India, Iraq, Iran, Israel, Japan, Korea, Lebanon, Philippines, Saudi Arabia, Thailand, USSR. Australasia: Australia. Europe: Belgium, France, Germany, Great Britain, Greece, Netherlands, Turkey. America: Canada, USA. TRANSMISSION: The fungus is soil borne and may be tramsmitted by seed.


Author(s):  
C. Booth

Abstract A description is provided for Fusarium oxysporum f.sp. vasinfectum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Gossypium spp., and species of Cajanus, Coffea, Hevea, Hibiscus, Medicago, Ricinus, Solanum and Vigna. DISEASE: Vascular wilt or Fusariosis of cotton is a disease affecting its host at all stages of its growth. Early symptoms on seedlings consist of vein clearing of the leaves followed by necrosis of the interveinal tissue and death of the leaves. On older plants leaves become chlorotic and the vascular tissues show a brown discolouration. Growth is retarded and the plant eventually wilts. GEOGRAPHICAL DISTRIBUTION: Africa: Congo, Central African Republic, Egypt, Ethiopia, Madagascar, Senegal, Somalia, Sudan, South Africa, Tanganyika, Uganda; Asia: Burma, China, Formosa, India, Indo-China, Iran, Iraq, Pakistan, U.S.S.R. ; Europe: France, Greece, Italy, Romania, Yugoslavia; North America, Mexico, U.S.A. (cotton belt); Central America & West Indies: Guatemala, Nevis, Nicaragua, Puerto Rico, Salvador, St. Vincent; South America: Argentina, Brazil, Chile, Colombia, Peru, Venezuela. (C.M.I. Map 362). TRANSMISSION: Soil-borne, but may also be transmitted by water and seed. The pathogen has been recovered from delineated seed obtained from infected cotton plants in the Central African Republic, Congo, Tanganyika and Brazil (32: 186; 33: 143; 40: 754; 41: 389). The percentage infection ranged from 0.2 to 5.0.


Author(s):  
D. Brayford

Abstract A description is provided for Fusarium oxysporum f. sp. ciceris. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Cicer arietinum (gram, chickpea). DISEASE: Vascular wilt. GEOGRAPHICAL DISTRIBUTION: First recorded from India; subsequently reported from Bangladesh, Burma, Chile, Ethiopia, Iran, Malawi, Mexico, Pakistan, Peru, Spain, Sudan, Syria, Tunisia and USA. TRANSMISSION: The fungus is soil borne. It may also be transmitted by seed (66, 3143).


Author(s):  
D. Brayford

Abstract A description is provided for Fusarium oxysporum f. sp. radicis-lycopersici. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Lycopersicon spp., including L. esculentum Mill. (tomato). Plants from several families may also be susceptible to some strains, in particular Capsicum frutescens L., Solanum melongena L. (Solanaceae), Arachis hypogea L., Astragalus glycyphyllos L., Glycine max (L.) Merr., Phaseolus vulgaris L., Pisum sativum L., Trifolium spp., Vicia faba L., (Leguminosae), Cucumis spp. (Cucurbitaceae), Beta vulgaris L. and Spinacia oleracea L. (Chenopodiaceae) (Jarvis & Shoemaker, 1978; 69, 7094; 73, 7659). DISEASE: Crown and root rot. GEOGRAPHICAL DISTRIBUTION: Australia, Belgium, Canada, Crete, France, Germany, Greece, Israel, Italy, Japan, Mexico, Spain, Sweden, The Netherlands, UK, USA. TRANSMISSION: Long range dissemination is via contaminated seed (73, 5786), diseased planting material (70, 1472) and by movement of infected soil/compost (64, 2160). Locally, conidia are readily spread by water flow, e.g. in irrigation or hydroponic systems (71, 4871, 4872, 6378). Some airborne dispersal of microconidia has been detected in glasshouses (Rowe et al., 1977), presumably resulting from splash droplet formation following sporulation on nearby plant debris. Fungus gnats have been reported to transport the fungus (73, 5534).


Author(s):  
D. Brayford

Abstract A description is provided for Fusarium oxysporum f. sp. dianthi. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Dianthus spp. (carnation, pinks, sweet williams), Lychnis chalcedoica L. (Caryophyllaceae) (Armstrong & Armstrong, 1954; Hood & Stewart, 1957). DISEASE: Vascular wilt. GEOGRAPHICAL DISTRIBUTION: Widespread where Dianthus is grown. TRANSMISSION: Via infected planting materials and contaminated soil. Local dispersal is by water flow and splash droplets containing slimy macro- or microconidia.


Author(s):  
D. Brayford

Abstract A description is provided for Fusarium oxysporum f. sp. vasinfectum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Cotton (Gossipium spp., including G. hirsutum, G. barbadense, G. arboreum, G. herbaceum), Chinese lantern (Physalis alkekengi), lucerne (alfalfa) (Medicago sativa), lupin (Lupinus luteus), okra (Abelmoschus esculentus), soyabean (Glycine max), tobacco (Nicotiana tabacum). A wide range of other plants may also be infected without external symptoms (51, 2512). DISEASE: Vascular wilt. GEOGRAPHICAL DISTRIBUTION: Widespread (IMI map 362). Africa: Central African Republic, Congo, Egypt, Ethiopia, Israel, Madagascar, Republic of South Africa, Senegal, Somalia, Sudan, Tanzania, Uganda, Zimbabwe. America: Argentina, Brazil, Chile, Colombia, Guatemala, Mexico, Nicaragua, Paraguay, Peru, Puerto Rico, Salvador, St. Kitts-Nevis, St. Vincent, USA (south eastern states), Venezuela. Asia: Burma, China, India, Iran, Iraq, Pakistan, Taiwan, USSR. Europe: France, Greece, Italy, Romania, Yugoslavia. TRANSMISSION: The fungus is soil borne and may be transmitted by seed (11, 713; 32, 186) and in irrigation water (62, 4911).


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