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

Author(s):  
D. Brayford

Abstract A description is provided for Fusarium oxysporum f. sp. pisi. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Pisum sativum L. (pea). Also reported to cause wilting of Dianthus spp. (74, 4545). DISEASE: Fusarium wilt, near wilt. Also a component in St. John's disease together with Fusarium solani (Martius) Sacc. (Buxton, 1955). GEOGRAPHICAL DISTRIBUTION: Widespread where peas are cultivated. TRANSMISSION: Contaminated seed. Movement of contaminated soil during cultivation. Local dispersal may occur via water flow and splash droplets containing micro- or macroconidia.

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. gladioli. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Gladiolus sp. Also known to infect Babania, Crocosmia (= Montbretia), Crocus, Freesia, bulbous Iris, Ixia, Sparaxis, Streptanthera, Tritonia and Washingtonia (Iridaceae), causing corm rot or yellows symptoms (McClellan, 1945; 73, 3171; 74, 1746). DISEASE: Corm rot, basal dry rot, yellows. GEOGRAPHICAL DISTRIBUTION: Widespread. TRANSMISSION: By infected corms used as planting material. Via movement of contaminated soil. Local dispersal is by water flow and droplet splash containing macro- or microconidia.


Author(s):  
D. Brayford

Abstract A description is provided for Fusarium oxysporum f. sp. medicaginis. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Medicago sativa L. (lucerne, alfalfa). It may also cause wilt symptoms on some cultivars of yellow lupin (Lupinus luteus L.) (Armstrong & Armstrong, 1964). DISEASE: Vascular wilt. GEOGRAPHICAL DISTRIBUTION: Widespread where lucerne is grown, but disease is favoured by warm climatic conditions. Via seed and movement of contaminated soil. Local dispersal is by water flow and splash droplets carrying macro- and microconidia.


Author(s):  
D. Brayford

Abstract A description is provided for Fusarium oxysporum f. sp. lini. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Linum spp., including L. usitatissimum L. (flax, linseed), L. angustifolium Huds. and L. crepitans Boemingh. (Kommedahl et al., 1970). It has also been reported to colonize roots of some weeds, including Veronica persica Poir., Stellaria media Cyrill., Lamium purpureum L., Capsella bursa-pastoris Medic. and Sonchus arvensis[Sonchus wightianus] L. (67, 1649). DISEASE: Vascular wilt. GEOGRAPHICAL DISTRIBUTION: Widespread where Linum is cultivated. TRANSMISSION: In seed and infected plant parts. Also by movement of contaminated soil during cultivation. Local dispersal is by water flow and splash droplets containing macro- or microconidia.


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. 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. apii. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Apium graveolens var. dulce (celery), A. graveolens var. rapaceum (celeriac). Symptomless infection of other crop plants and weeds may occur (66, 4005). Race 1 was reported to produce root lesions on inoculated Asparagus seedlings (68, 2953). The fungus can also cause vascular wilt of Mexican sunflower (Tithonia rotundifolia 'Torch') (Armstrong & Armstrong, 1966), peas (Pisum sativum) (Armstrong & Armstrong, 1967), Asparagus, Aubergine/Eggplant (Solanum melongena) and cotton (Gossypium arboreum 'Rozi', G. barbadense 'Coastland', 'Sakel') (Armstrong & Armstrong, 1969). DISEASE: Fusarium yellows. GEOGRAPHICAL DISTRIBUTION: Asia: Taiwan; Europe: France; North America: Canada (British Columbia, Ont), USA (widespread).


Author(s):  
D. Brayford

Abstract A description is provided for Fusarium oxysporum f. sp. asparagi. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Asparagus officinalis L. (asparagus). DISEASE: Vascular wilt. May also cause seedling blight (Graham, 1955) and be part of an Asparagus 'decline' complex together with Fusarium moniliforme[Gibberella fujikuroi] Sheld. (Grogan et al., 1959), where plant vigour is reduced and crop yeild and quality decreases. GEOGRAPHICAL DISTRIBUTION: Widespread where Asparagus is cultivated. Africa: South Africa, Tanzania. Australasia: Japan, New Zealand, Taiwan. Europe: Belgium, France, Germany, Greece, Italy, Spain, The Netherlands. North America: Canada, USA. TRANSMISSION: The fungus may be seed-borne (Inglis, 1980; 67, 2733) and also transmitted via plants raised in contaminated seed bed soil. Local dispersal is by water flow and rain splash of slimy conidia.


Author(s):  
D. Brayford

Abstract A description is provided for Fusarium oxysporum f. sp. cepae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Allium cepa L. (onion, shallots), A. sativum L. (garlic) (see notes below concerning F. oxysporum f.sp. garlic), A. fistulosum L. (Japanese bunching onion), A. chinense G. Don (rakkyo); Asparagus (68, 2953); Oxalis spp. (56, 1835). DISEASE: Basal rot of bulbs. Damping off of seedlings. GEOGRAPHICAL DISTRIBUTION: Africa: Egypt, Ethiopia, South Africa, Zambia. Australasia: India, Israel, Japan, Philippines, Tasmania. Europe: Greece, Hungary, Italy. North America: USA. South America: Brazil. TRANSMISSION: Via seed, infected planting material or movement of soil. Local dispersal is by slimy micro- and macroconidia moved by water flow and splash droplets.


Author(s):  
D. Brayford

Abstract A description is provided for Fusarium babinda. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Saprobic in soil, plant debris. DISEASE: None known. GEOGRAPHICAL DISTRIBUTION: Eastern Australia. TRANSMISSION: Conidia are dispersed locally by water flow and splash droplets. Chlamydospores may be dispersed by movement of contaminated soil or plant debris.


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