Xanthomonas albilineans. [Descriptions of Fungi and Bacteria].

2000 ◽  
Author(s):  
G. S. Saddler
Keyword(s):  
Geographical Distribution ◽  
Chronic Phase ◽  
French Polynesia ◽  
Imperata Cylindrica ◽  
Disease Spread ◽  
Pennisetum Purpureum ◽  
Panicum Maximum ◽  
White Line ◽  
Bambusa Vulgaris ◽  
Xanthomonas Albilineans

Abstract A description is provided for Xanthomonas albilineans. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Bambusa vulgaris, Coix lacryma-jobi, Cymbopogon citratus, Saccharum officinarum, S. spontaneum, Sorghum halepense, Zea mays (Poaceae). Wild hosts: Brachiaria piligera, Imperata cylindrica, Panicum maximum, Paspalum conjugatum, P. dilatatum, Pennisetum purpureum, Rottboellia cochinchinensis (Poaceae). DISEASE: Leaf scald of sugarcane, considered to be one of the major diseases of this host. Two disease phases have been recorded: chronic and acute. In the chronic phase a typical white line (1-2 mm wide) runs parallel to the leaf veins almost the entire length of the leaf. Latterly, lines may become diffuse and redden, particularly in the middle of the stripe. Partial or total chlorosis of leaves occurs (scalding) and is accompanied by an inward curling. In the acute phase of the disease, sudden plant death occurs with few or no symptoms. The disease can remain dormant until environmental conditions are favourable for symptom expression. GEOGRAPHICAL DISTRIBUTION: AFRICA: Benin, Burkina Faso, Cameroon, Chad, Congo Democratic Republic, Congo, Ghana, Ivory Coast, Kenya, Madagascar, Malawi, Mauritius, Morocco, Mozambique, Nigeria, Réunion, South Africa, Swaziland, Tanzania, Zimbabwe. NORTH AMERICA: USA (Florida, Hawaii, Louisiana, Texas). CENTRAL AMERICA: Barbados, Belize, Cuba, Dominica, Dominican Republic, Grenada, Guadeloupe, Guatemala, Jamaica, Martinique, Mexico (Vera Cruz), Panama, Puerto Rico, St Kitts & Nevis, St Lucia, St Vincent & Grenadines, Trinidad & Tobago. SOUTH AMERICA: Argentina, Brazil (Säo Paulo, Sergipe), Colombia, Ecuador, French Guiana, Guyana, Suriname, Uruguay, Venezuela. ASIA: Cambodia, China, Taiwan, India (Andhra Pradesh, Uttar Pradesh), Indonesia (Java, Sulawesi), Japan, Malaysia, Myanmar, Pakistan, Philippines, Sri Lanka, Thailand, Vietnam. AUSTRALASIA: Australia (New South Wales, Queensland), Fiji, French Polynesia, Papua New Guinea. TRANSMISSION: Primarily on infected cuttings and fluffs (mature flowers). The use of contaminated tools and harvesters aids local spread. Airborne infection has occurred and wet and stormy conditions are highly conducive to disease spread. Root to root infections have also been recorded (KLETT & ROTT, 1994).

Xanthomonas vasculorum. [Descriptions of Fungi and Bacteria].

1973 ◽  
Author(s):  
J. F. Bradbury
Keyword(s):  
Geographical Distribution ◽  
Vascular Tissue ◽  
Cocos Nucifera ◽  
New Guinea ◽  
Pathogen Transmission ◽  
Pennisetum Purpureum ◽  
Panicum Maximum ◽  
Resistant Varieties ◽  
Terminal Bud ◽  
Bambusa Vulgaris

Abstract A description is provided for Xanthomonas vasculorum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Saccharum officinarum. Also found naturally infecting Zea mays, Dictyosperma album, Thysanolaena maxima, Roystonea regia and Areca catechu. In addition to these, infection has beer; obtained after artificial inoculation on Bambusa vulgaris, Brachiaria mutica, Cocos nucifera, Coix lachyrma-jobi, Panicum maximum, Pennisetum purpureum, Sorghum halepense, S. verticilliflorum, 20: 381, S. vulgare, S. vulgare var. sudanense, Sorghum spp. (18, 710; 20, 381; 43, 218). DISEASE: Gumming disease or gummosis of sugarcane. On leaves, yellowish chlorotic stripes occur. These may be the only symptoms on the more resistant varieties. On other varieties they may become spotted with brownish spots that become necrotic with age. The necrosis may involve large areas of leaf. The vascular tissue of the stem becomes darkened and contains bacterial slime. In very susceptible varieties the yellow slime may also form below the terminal bud and sometimes interferes with the development of the top of the plant. The tops often die and the terminal bud decays. GEOGRAPHICAL DISTRIBUTION: Recently reported in the following countries: Africa: Ghana, Madeira, Malagasy Republic, Malawi, Mauritius, Mozambique, Reunion, Rhodesia, South Africa; North America: Mexico; Central & South America: Puerto Rico, Argentina, Brazil, Colombia, French Guiana, Far East: New Guinea; Hughes (34, 487) considers that the pathogen may not be present in New Guinea (CMI Map 3, ed. 5, 1971). The disease has been observed in the past in 25 or more countries where sugarcane is grown (48, 3137k; 50, 915y). In some it is claimed to have been eradicated and in others it has not been seen for many years. It may be that the local conditions and use of resistant varieties have combined to eradicate the pathogen. TRANSMISSION: Introduction into new areas and countries is by planting diseased setts or cuttings. Healthy setts may be infected from diseased ones during planting by means of the cutting knife. Agricultural tools, workers, vehicles, animals and even insects may carry inoculum from field to field. The most rapid and important local spread, however, is from plant to plant by wind-driven rain. Fresh wounds are needed for entry of the pathogen, but these are available, especially in windy weather, as a result of leaves rubbing together. The saw-tooth edges of the leaves cause many tiny abrasions (North, 1935; Hughes, 1961).

Clavibacter XYLI subsp. XYLI. [Descriptions of Fungi and Bacteria].

1991 ◽  
Author(s):  
J. F. Bradbury
Keyword(s):  
Geographical Distribution ◽  
Sugar Cane ◽  
Normal Growth ◽  
Saccharum Officinarum ◽  
Imperata Cylindrica ◽  
Pennisetum Purpureum ◽  
Panicum Maximum ◽  
Vascular Bundles ◽  
Serological Method ◽  
Planting Material

Abstract A description is provided for Clavibacter XYLI subsp. XYLI. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOST: Saccharum officinarum, where it is restricted to the xylem. It produces a characteristic wilting when inoculated into sorghum-Sudan grass hybrid NB280S (61, 5933); also able to multiply in the xylem of various grasses and cereals, including Brachiaria mutica, B. miliiformis, Chloris gayana, Cynodon dactylon, Echinochloa colonum, Imperata cylindrica, Panicum maximum, Pennisetum purpureum, Rhynchelytrum repens, Sorghum bicolor, S. halepense, S. sudanense, S. verticilliporum, Sporobolus capensis and Zea mays when artificially inoculated, but although it can be transmitted back to sugar cane to produce the disease, it does not produce symptoms in these plants (Gillespie & Teakle, 1989). DISEASE: Ratoon stunting disease (RSD) of sugar cane. The cane makes slower than normal growth and is generally unthrifty. Canes are thinner with shorter internodes than normal and ratoon or stubble crops are particularly affected. Internally, reddish vascular bundles may be seen, especially at the nodes, or in immature cane, the interior of the nodes may be generally a faint pink. Such symptoms are, however, not particularly reliable for diagnosis, as they can result from stress caused by other factors. To confirm the disease it is probably best to observe the bacterium in the vessels by light or electron microscopy, use a serological method or both. GEOGRAPHICAL DISTRIBUTION: Very widespread due to transmission in planting material. Records include: Burkina Faso, Cameroon, Congo, Egypt, Ethiopia, Kenya, Madagascar, Malawi, Mali, Mauritius, Mozambique, Nigeria, Reunion, South Africa (Natal), Sudan, Swaziland, Tanzania, Uganda, Zaire, Zimbabwe, Bangladesh, Burma, China, India (Madhya Pradesh, Karnataka, Punjab, Uttar Pradesh), Indonesia (Java), Japan, Malaysia (W.), Philippines, Sri Lanka, Taiwan, Thailand, Australia (NSW, Qd), Fiji, Hawaii, Spain, Mexico, USA (Florida, LA), Antigua, Barbados, Belize, Cuba, Dominican Republic, Jamaica, Nevis, Nicaragua, Panama, Puerto Rico, El Salvador, St. Kitts, Trinidad, Argentina, Brazil (Rio de Janeiro), Colombia, Guyana, Peru, Uruguay, Venezuela (IMI Distribution Map 318, ed. 4, 1982; 63, 2478; 64, 2151; 66, 2051; 69, 5165; ISSCT List 1983). TRANSMISSION: To new areas in vegetative planting material and within the crop by mechanical means such as cutting knives and mechanical harvesters. Rats may also spread the disease.

Eudarluca caricis. [Descriptions of Fungi and Bacteria].

2001 ◽  
Author(s):  
M. Rodríguez Hernández
Keyword(s):  
Puerto Rico ◽  
North America ◽  
South America ◽  
Central America ◽  
Geographical Distribution ◽  
New Caledonia ◽  
Biological Control Agent ◽  
Pennisetum Purpureum ◽  
Panicum Maximum ◽  
North Borneo

Abstract A description is provided for Eudarluca caricis. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: Hyperparasitic on rust pustules. This species has been discussed as a potential biological control agent by various authors (PELHATE, 1961, and SEBESTA, 1963, according to ERIKSSON, 1966; GONZÁLEZ & CASTELLANOS, 1978). HOSTS: On many rust species (including Kuehneola malvicola, Phakopsora gossypii, Peridermium peckii, Puccinia cynodontis, P. fimbristylidis, P. gouaniae, P. huberi, P. levis, P. liberta, P. melampodii, P. melanocephala, P. polysora, P. purpurea, P. raunkaerii, P. sorghi, P. thaliae, Puccinia sp., Uredinales fam. indet., Uredo aeschynomensis, U. kyllingiae, U. commelinae, U. costaricensis, U. phaseoli, U. setariae-italicae, U. tenuicutis) associated with the following plants: Allium ampeloprasum, A. schoenoprasum (Alliaceae), Canna coccinea, C. glauca (Cannaceae), Commelina elegans (Commelinaceae), Centaurea scabiosa, Synedrella nodiflora, Wedelia rugosa (Compositae), Carex sp., Cyperus odoratus, Cyperus sp., Eleocharis interstincta, Eleocharis sp., Fimbristylis diphylla, Kyllinga sp., Rhynchospora micrantha (Cyperaceae), Andropogon sp., Arachis hypogaea, Cynodon dactylon, Digitaria decumbens, Eriochloa polystachys, Lasiacis divaricata, Panicum maximum, P. purpurascens, P. trichoides, Paspalum plicatulum, Pennisetum purpureum, Phragmites communis, Rhynchelytrum roseum, Sorghum bicolor, S. halepense, S. vulgare, Sporobolus indicus, Tripsacum laxum, Zea mays (Gramineae), Aeschynomene americana, Inga vera, Phaseolus vulgaris (Leguminosae), Althaea rosea, Gossypium barbadense, Hibiscus syriacus (Malvaceae), Rivina humilis (Phytolaccaceae), Gouania lupuloides (Rhamnaceae), Persica vulgaris, Potentilla canadensis, P. verna (Rosaceae), Salix fragilis, S. purpurea (Salicaceae). GEOGRAPHICAL DISTRIBUTION: Ubiquitous. Records of the anamorph are as follows. AFRICA: Algeria. NORTH AMERICA: Canada, USA (NAG RAJ, 1993). CENTRAL AMERICA: American Virgin Islands (SEAVER, 1924, 1925), Cuba (COOK, 1906), Puerto Rico. SOUTH AMERICA: Argentina, Brazil. Ecuador. Venezuela (CHARDÓN & TORO, 1934). AUSTRALASIA: New Zealand. EUROPE: Austria, former Czechoslovakia, France, Germany. Records of the teleomorph are as follows. AFRICA: Ghana, Guinea, Kenya, Libya, Malawi, Nigeria, Sierra Leone, South Africa, Sudan, Tanzania, Togo, Uganda. NORTH AMERICA: USA. CENTRAL AMERICA: Costa Rica, Dominican Republic, Jamaica, Puerto Rico. SOUTH AMERICA: Argentina, Brazil, Guyana [as British Guiana], Ecuador, Venezuela (ERIKSSON, 1966). ASIA: China, India, Japan, Malaysia (including North Borneo), former USSR. AUSTRALASIA: New Caledonia, Papua New Guinea. EUROPE: Austria, Belgium, Finland, France, Germany, Sweden, Switzerland. TRANSMISSION: By air-borne conidia.

Homalodisca coagulata. [Distribution map].

2005 ◽  
Author(s):  
Keyword(s):  
North Carolina ◽  
South Carolina ◽  
North America ◽  
Geographical Distribution ◽  
French Polynesia ◽  
Distribution Map ◽  
Homalodisca Coagulata ◽  
New Distribution

Abstract A new distribution map is provided for Homalodisca coagulata (Say) Hemiptera: Auchenorrhyncha: Cicadellidae Hosts: Polyphagous. Information is given on the geographical distribution in NORTH AMERICA, Mexico, USA, Alabama, Arkansas, California, Florida, Georgia, Louisiana, Mississippi, North Carolina, South Carolina, Texas, OCEANIA, French Polynesia.

Bipolaris sacchari. [Distribution map].

2012 ◽  
Author(s):  
Keyword(s):  
Tamil Nadu ◽  
Solomon Islands ◽  
Far East ◽  
Uttar Pradesh ◽  
French Polynesia ◽  
Virgin Islands ◽  
Peninsular Malaysia ◽  
Pennisetum Purpureum ◽  
Distribution Map ◽  
East Russia

Abstract A new distribution map is provided for Bipolaris sacchari (E.J. Butler) Shoemaker. Ascomycota: Pleosporales. Hosts: sugarcane, citronella grass (Cymbopogon citratus) and elephant grass (Pennisetum purpureum). Information is given on the geographical distribution in Europe (Italy; Madeira, Portugal; and Far East, Russia), Asia (Bangladesh; Bhutan; Cambodia; Fujian, Guangdong, Guangxi, Hong Kong, Hunan, Jiangxi, Nei Menggu, Sichuan and Yunnan, China; Andaman and Nicobar Islands, Andhra Pradesh, Assam, Karnataka, Madhya Pradesh, Maharashtra, Rajasthan, Tamil Nadu, Uttar Pradesh and West Bengal, India; Irian Jaya, Indonesia; Iran; Israel; Japan; Peninsular Malaysia, Sabah and Sarawak, Malaysia; Myanmar; Pakistan; Philippines; Sri Lanka; Taiwan; Thailand; and Vietnam), Africa (Cameroon, Congo Democratic Republic, Egypt, Ghana, Kenya, Madagascar, Malawi, Mauritius, Mozambique, Nigeria, Reunion, Senegal, Sierra Leone, South Africa, Tanzania, Uganda, Zambia and Zimbabwe), North America (Mexico, and Alabama, Florida, Georgia, Hawaii, Louisiana and Maryland, USA), Central America and Caribbean (Antigua and Barbuda, Belize, Costa Rica, Cuba, Dominican Republic, El Salvador, Grenada, Guadeloupe, Guatemala, Haiti, Honduras, Jamaica, Martinique, Nicaragua, Panama, Puerto Rico, Saint Kitts and Nevis, Saint Lucia, Trinidad and Tobago, United States Virgin Islands and Windward Islands), South America (Argentina; Bolivia; Acre, Minas Gerais, Pernambuco and Rio Grande do Sul, Brazil; Colombia; French Guiana; Guyana; Peru; Suriname; and Venezuela) and Oceania (New South Wales and Queensland, Australia; Cook Islands; Federated States of Micronesia; Fiji; French Polynesia; New Zealand; Palau; Papua New Guinea; Samoa; Solomon Islands; and Vanuatu).

scholarly journals Vascular flora of the Upper Paraná River floodplain

2009 ◽  
Vol 69 (2 suppl) ◽  
pp. 735-745 ◽  
Author(s):  
MC. Souza ◽  
K. Kawakita ◽  
SR. Slusarski ◽  
GF. Pereira
Keyword(s):  
Ricinus Communis ◽  
Paraná River ◽  
Pennisetum Purpureum ◽  
Panicum Maximum ◽  
River Floodplain ◽  
Parana River ◽  
Number Of Species ◽  
Upper Paraná River Floodplain ◽  
Upper Paraná River ◽  
Paraná River Floodplain

The purpose of this study was to update the floristic inventory found in the Upper Paraná River floodplain. Floristic surveys were performed from February 2000 through March 2008, as part of the Brazilian Long-Term Ecological Research Program (PELD/CNPq -Site 6). The material collected was identified from 774 species, 442 genera, and 116 families. The ten families with high species richness were Leguminosae, Poaceae, Rubiaceae, Asteraceae, Euphorbiaceae, Myrtaceae, Cyperaceae, Solanaceae, Sapindaceae, and Orchidaceae, which contributed to 46.1% of the total number of species. Genera with high richness were Solanum, Cyperus, Panicum, Eugenia, Tillandsia, Serjania, Casearia, and Polygonum, which together contributed to 10.2% of the total number of species. These data, combined with information published in 1997, recorded 955 species, 575 genera, and 128 families. These organisms were from several riparian environments and were distributed as herbs, shrubs, trees, climbers and epiphytes. Panicum maximum, Pennisetum purpureum, Ricinus communis, and Urochloa decumbens are considered weeds due to the wide distributions determined for these species. The results presented herein suggest the need to further investigate the control of these potential weed species.

Taro bacilliform virus. [Distribution map].

2019 ◽  
Author(s):  
Keyword(s):  
Papua New Guinea ◽  
Geographical Distribution ◽  
New Caledonia ◽  
Solomon Islands ◽  
French Polynesia ◽  
American Samoa ◽  
Distribution Map ◽  
Virus Distribution ◽  
New Distribution ◽  
Taro Bacilliform Virus

Abstract A new distribution map is provided for Taro bacilliform virus. Ortervirales: Caulimoviridae: Badnavirus. Hosts: taro (Colocasia esculenta). Information is given on the geographical distribution in Africa (Kenya, Tanzania, Uganda), Oceania (American Samoa, Australia, Queensland, Cook Islands, Fiji, French Polynesia, New Caledonia, Papua New Guinea, Samoa, Solomon Islands, Vanuatu).

Cochliobolus heterostrophus. [Descriptions of Fungi and Bacteria].

1971 ◽  
Author(s):  
M. B. Ellis
Keyword(s):  
Zea Mays ◽  
Geographical Distribution ◽  
Leaf Sheath ◽  
Leaf Blight ◽  
Disease Spread ◽  
Cochliobolus Heterostrophus ◽  
Sorghum Vulgare ◽  
Main Host ◽  
The Tropics ◽  
Diffuse Lesion

Abstract A description is provided for Cochliobolus heterostrophus. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Generally on leaves of Zea mays, the main host, Euchlaena mexicana, Sorghum vulgare and many species of Gramineae (41: 40; 45, 3084; 48, 414; 50, 2257i). During an epidemic in USA caused by race T in 1970 no important hosts apart from Z. mays were noted (50, 2257b). DISEASE: Southern leaf blight of maize, forming very numerous lesions up to 2.5 cm long, mostly on the leaves. They are at first elliptical, then longitudinally elongate, becoming rectangular as restriction by the veins occurs; cinnamon-buff (sometimes with a purplish tint) with a reddish-brown margin and occasionally zonate, coalescing and becoming greyish with conidia. Symptoms caused by race T show a less well defined, somewhat diffuse lesion, with marginal chlorosis leading to leaf collapse, and all parts of the plant can be attacked. Perithecia have been recently reported in the field at the junction of leaf sheath and blade (50, 2257j). GEOGRAPHICAL DISTRIBUTION: Widespread in the tropics and subtropics (CMI Map 346, ed. 3, 1969) but not reported from Australia. Records not yet mapped are: Brunei, Guatemala, Hawaii, Israel, Laos, Mexico, Salvador and Venezuela. TRANSMISSION: Presumably air-dispersed but no detailed studies seem to have been reported. During the recent USA outbreak the disease spread from Florida to Maine in c. 6 months (50, 2257c). Spread by seed occurs (50, 3690, 3692; Crosier & Boothroyd, Phytopathology 61: 427, 747).

Cochliobolus miyabeanus. [Descriptions of Fungi and Bacteria].

1971 ◽  
Author(s):  
M. B. Ellis
Keyword(s):  
Oryza Sativa ◽  
Geographical Distribution ◽  
Primary Infection ◽  
French Polynesia ◽  
Brown Spot ◽  
Seed Infection ◽  
Seedling Blight ◽  
Late Afternoon ◽  
Leaf Spots ◽  
Cochliobolus Miyabeanus

Abstract A description is provided for Cochliobolus miyabeanus. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Oryza sativa and other species of Oryza. DISEASE: Brown spot and seedling blight of rice. Oval leaf spots up to 1 cm long, at first usually brown, sometimes purplish, later forming white to grey centres, spots may coalesce and leaves wither. Glumes may be spotted, becoming velvety with sporulation. Infected seed is shrivelled and discoloured; coleoptiles bear lesions which can also occur on the roots of seedlings. GEOGRAPHICAL DISTRIBUTION: Widespread (CMI Map 92, ed. 3, 1966). Records not yet mapped: Angola, Cambodia, Chad, France (S.), French Polynesia, Hong Kong, Laos, Malawi, Nepal, Rhodesia. TRANSMISSION: Seed infection is important (mycelium remaining viable for up to 3 yr) and is probably responsible for most of the primary infection in young crops (9: 556; 34: 104). Grain is directly attacked and kernels in the flowering and milk stages are more susceptible than those in the soft dough and mature stages (45, 2834; 46, 317). Conidia are air-dispersed showing a diurnal periodicity with a max. in the late afternoon (43, 1017; 48, 3486).

Drechslera incurvata. [Descriptions of Fungi and Bacteria].

1972 ◽  
Author(s):  
M. B. Ellis
Keyword(s):  
Sri Lanka ◽  
Papua New Guinea ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
New Caledonia ◽  
Solomon Islands ◽  
Cocos Nucifera ◽  
New Guinea ◽  
French Polynesia ◽  
New Hebrides

Abstract A description is provided for Drechslera incurvata. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Cocos nucifera. DISEASE: A leaf spot of young coconut (Cocos nucifera). The spots are at first small, oval, brown; enlarging and becoming pale buff in the centre with a broad, dark brown margin. In severe attacks the edges of leaves become extensively necrotic. GEOGRAPHICAL DISTRIBUTION: Apart from records from Jamaica and Seychelles the fungus has been reported only from S.E. Asia, Australasia and Oceania: British Solomon Islands, Fiji, French Polynesia, Malaysia (W., Sabah, Sarawak), New Caledonia, New Hebrides, Papua-New Guinea, Philippines, Sri Lanka, Vietnam and Thailand. TRANSMISSION: Presumably air dispersed.

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