Rhizopus stolonifer. [Descriptions of Fungi and Bacteria].

1966 ◽  
Author(s):  
A. K. Sarbhoy
Keyword(s):  
Drosophila Melanogaster ◽  
Sweet Potato ◽  
Geographical Distribution ◽  
Ipomoea Batatas ◽  
World Wide ◽  
Rhizosphere Soil ◽  
Fruit Flies ◽  
Fruit Rot ◽  
Rhizopus Stolonifer ◽  
Artocarpus Integrifolia

Abstract A description is provided for Rhizopus stolonifer. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On fruits: papaya, plum, strawberry, sweet potato, cotton, groundnuts and in rhizosphere soil of various plants, soil and decaying leaves. DISEASE: Causing fruit rot of plum, Jak fruit (Artocarpus integrifolia[Artocarpus integer]), strawberry ('leak'), peach and a rot of sweet potato (Ipomoea batatas) and cotton bolls. GEOGRAPHICAL DISTRIBUTION: World-wide. TRANSMISSION: Air-borne and also by fruit flies, Drosophila melanogaster, associated with decaying fruit (RAM 43, 576).

Streptomyces ipomoeae. [Distribution map].

1975 ◽  
Author(s):  
Keyword(s):  
New Jersey ◽  
North America ◽  
Sweet Potato ◽  
Geographical Distribution ◽  
Ipomoea Batatas ◽  
Distribution Map ◽  
New Distribution

Abstract A new distribution map is provided for Streptomyces ipomoeae (Person & W. J. Martin) Waksm. & Henrici. Hosts: Sweet potato (Ipomoea batatas). Information is given on the geographical distribution in NORTH AMERICA, USA (general from New Jersey to Florida, Tex and Iowa, also Arizona, California).

Pseudocercospora timorensis. [Descriptions of Fungi and Bacteria].

1987 ◽  
Author(s):  
S. Little
Keyword(s):  
Sweet Potato ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Ipomoea Batatas ◽  
Leaf Surface ◽  
Solomon Islands ◽  
Leaf Spots ◽  
Brown Leaf Spot ◽  
Water Splash ◽  
Brown Leaf

Abstract A description is provided for Pseudocercospora timorensis. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Ipomoea batatas (sweet potato), I. biloba, I. campanulata, I. cordofana, I. muricata, I. peltata, I. setifera.DISEASE: Leaf spot or brown leaf spot of sweet potato. Small circular lesions first form on the leaf borders and tips before spreading over the leaf surface. These leaf spots enlarge becoming brown to dark brown in colour with a verruculose surface. The larger leaf veins may delimit the spots. GEOGRAPHICAL DISTRIBUTION: Africa: most countries; Asia: Hong-Kong, India, Indonesia, Malaysia, Taiwan; Australasia: Fiji, Papua New Guinea, Solomon Islands; North America: West Indies (St Lucia). TRANSMISSION: Presumably by wind-borne and water-splash dispersed conidia.

Cylas brunneus. [Distribution map].

2005 ◽  
Author(s):  
Keyword(s):  
Sierra Leone ◽  
Sweet Potato ◽  
Geographical Distribution ◽  
Cote D'ivoire ◽  
Ipomoea Batatas ◽  
Côte D’Ivoire ◽  
Distribution Map ◽  
Cote D’Ivoire ◽  
Cylas Brunneus ◽  
New Distribution

Abstract A new distribution map is provided for Cylas brunneus (Olivier) Coleoptera: Brentidae Hosts: Sweet potato (Ipomoea batatas). Information is given on the geographical distribution in AFRICA, Burundi, Cote d'Ivoire, Ghana, Kenya, Nigeria, Rwanda, Sierra Leone, Togo, Uganda.

Coleosporium ipomoeae. [Descriptions of Fungi and Bacteria].

1971 ◽  
Author(s):  
G. F. Laundon
Keyword(s):  
Sweet Potato ◽  
Geographical Distribution ◽  
West Indies ◽  
Ipomoea Batatas ◽  
Late Summer ◽  
Western Hemisphere ◽  
American Continent ◽  
Alternate Host ◽  
The West ◽  
Far North

Abstract A description is provided for Coleosporium ipomoeae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Pycnia and aecia on several species of Pinus (especially southern pines), uredial aecia and telia on several genera of the Convolvulaceae (Argyreia, Convolvulus, Ipomoea and Jacquemontia). DISEASES: Orange rust of sweet potato (Ipomoea batatas). One of the needle rusts of pines. GEOGRAPHICAL DISTRIBUTION: Probably widespread in the warmer regions of the American continent and the West Indies. Recorded on Ipomoea spp. other than sweet potato as far north as Illinois, Ohio and New Jersey. Not recorded in western states of USA or outside the western hemisphere. TRANSMISSION: Transmission of the Coleosporium rusts in Florida has been described by Weber (23: 245). Short-lived basidiospores, which rarely travel more than 1.6 km in a viable condition, infect pine needles during late summer and autumn probably through the stomata. The aeciospores formed in the spring are very resistant and can travel long distances to infect the alternate host by direct penetration of the cuticle.

Phytophthora nicotianae. [Descriptions of Fungi and Bacteria].

1994 ◽  
Author(s):  
G. Hall
Keyword(s):  
Surface Water ◽  
Nicotiana Tabacum ◽  
Geographical Distribution ◽  
Root Rot ◽  
World Wide ◽  
Phytophthora Nicotianae ◽  
Fruit Rot ◽  
Tomato Root ◽  
Ornamental Crops ◽  
The Tropics

Abstract A description is provided for Phytophthora nicotianae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Principally Lycopersicon esculentum, Nicotiana tabacum, Capsicum annuum and Citrus sp. A very large number of other agricultural and ornamental crops, both temperate and tropical, are also affected, including avocado, strawberry, pineapple, papaya, guava, eggplant and durian. DISEASE: Blackshank of tobacco, buckeye of tomato, root and fruit rot of capsicum, root rot of citrus. GEOGRAPHICAL DISTRIBUTION: World-wide, but particularly common in the tropics and sub-tropics. TRANSMISSION: By zoospores in surface water and rainsplash. Chlamydospores (and oospores, when formed) act as perennating structures.

Streptomyces ipomoeae. [Descriptions of Fungi and Bacteria].

1981 ◽  
Author(s):  
J. F. Bradbury
Keyword(s):  
Sweet Potato ◽  
Geographical Distribution ◽  
Ipomoea Batatas ◽  
Sweet Potatoes ◽  
Poor Growth ◽  
Early Stages ◽  
Green Leaves ◽  
Planting Material ◽  
Black Spots ◽  
Pale Green

Abstract A description is provided for Streptomyces ipomoeae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Ipomoea batatas. DISEASE: Soil rot, pox, pit, or ground rot of sweet potato. All underground parts of the plant can be attacked. Dark brown to black spots of varying shapes and sizes are formed on roots, tubers and underground parts of stems. In serious attacks many of the fine feeding roots are either destroyed or more or less malformed. The above-ground parts of the plants then show poor growth and thin, pale green leaves. Yields are drastically reduced on such plants. In the early stages lesions on the root-tubers are covered by the epidermis, but this cracks and breaks up, leaving a hole or pit. These pits can be quite large and may girdle the potato, preventing growth at that point. Continued growth on either side results in a dumbell-shaped, or other misshapen potato. GEOGRAPHICAL DISTRIBUTION: USA, occurring more or less locally in most, if not all, of the States where sweet potatoes are grown. (CMI Map 301, ed. 2, 1975). TRANSMISSION: The disease is soilborne and most infection is thought to take place when plants are set out into already infested fields, but infection can occur in the nursery bed. The pathogen can be spread to new areas in a variety of ways. Infected planting material is probably the most frequent, but contaminated agricultural tools, workers' boots, feet of grazing animals, and even the wheels of vehicles may also play a part. Once established in a field, the organism can continue to live in the soil until the host is present and conditions are right for infection.

Alternaria bataticola. [Descriptions of Fungi and Bacteria].

1991 ◽  
Author(s):  
J. C. David
Keyword(s):  
Papua New Guinea ◽  
Sweet Potato ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Ipomoea Batatas ◽  
Central Africa ◽  
New Guinea ◽  
Wind Dispersal ◽  
Airborne Conidia

Abstract A description is provided for Alternaria bataticola. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOST: Ipomoea batatas. DISEASE: Leaf spot of Sweet Potato. GEOGRAPHICAL DISTRIBUTION: Africa: Central Africa, Burundi. Asia: Japan, Papua New Guinea. TRANSMISSION: By wind dispersal of airborne conidia.

scholarly journals PROTOPLAST ISOLATION AND CULTURE OF SOME IPOMOEA SPECIES IN THE SECTION BATATAS.

HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1155f-1155
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
World Wide ◽  
Protoplast Isolation ◽  
Cellular Level ◽  
Ipomoea Trifida ◽  
Centers Of Origin ◽  
Tuber Production ◽  
Ipomoea Triloba ◽  
Ipomoea Species

Sweet potato (Ipomoea batatas L. Lam) ranks second in world wide root and tuber production. Loss of genetic resources in the primary centers of origin have been occurring for a number of years. Utilization of the genetic diversity of wild types and related species cart expand breeding potential and efficiency. Two species, Ipomoea trifida and Ipomoea triloba, have been identified as possible progenitor species or sweet potato. Plant improvement at the cellular level using protoplasts is a novel alternative to conventional breeding practices. Protoplast plating efficiency appears to be genotype dependent. Roots have been regenerated from Ipomoea trifida protoplasm calli on Murashige and Skoog's medium containing zeatin or kinetin.

Pythium oligandrum. [Descriptions of Fungi and Bacteria].

1966 ◽  
Author(s):  
G. M. Waterhouse
Keyword(s):  
Geographical Distribution ◽  
Ipomoea Batatas ◽  
Carthamus Tinctorius ◽  
Fruit Rot ◽  
Ananas Comosus ◽  
Pythium Oligandrum ◽  
Wide Range ◽  
Rheum Rhaponticum ◽  
Lathyrus Odoratus ◽  
Cucumis Sativa

Abstract A description is provided for Pythium oligandrum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Ananas comosus, Antirrhinum majus, Beta vulgaris, Brassica oleracea, Carthamus tinctorius, Citrullus vulgaris, Citrus sp., Cucumis sativa, Cucurbita pepo, Daucus carota, Euphorbia pulcherrima, Ipomoea batatas, Lactuca sativa, Lathyrus odoratus, Lycopersicon esculentum, Malus pumila, Papaver rhocas, Persea gratissima, Phaseolus acutifolium, P. vulgaris, Pisum sativum, Prunus amygdalus, Rheum rhaponticum, Stipa sp., Triticum aestivum, Viola tricolor and in soil and compost. DISEASES: Causing damping-off of seedlings, also stem and root rot of a wide range of plants including peas, beans, sweet potato, tomato, rhubarb, sugar beet, sweet peas, pansy and wheat. Also associated with a fruit rot of cucumber and water melon. GEOGRAPHICAL DISTRIBUTION: Africa (South Africa), Asia (Israel); Australasia & Oceania (Australia, Hawaii); Europe (Cyprus, Great Britain, Italy); North America (U.S.A.); South America (Argentina). TRANSMISSION: Soil-borne.

Sweet potato chlorotic stunt virus. [Distribution map].

2005 ◽  
Author(s):  
Keyword(s):  
North America ◽  
South America ◽  
Sweet Potato ◽  
Geographical Distribution ◽  
Ipomoea Batatas ◽  
Distribution Map ◽  
Virus Distribution ◽  
New Distribution ◽  
Distribution In Europe

Abstract A new distribution map is provided for Sweet potato chlorotic stunt virus Virus: Closteroviridae: Crinivirus Hosts: Sweet potato (Ipomoea batatas). Information is given on the geographical distribution in EUROPE, Spain, ASIA, Israel, Korea Republic, AFRICA, Egypt, Kenya, Madagascar, Nigeria, Tanzania, Uganda, Zambia, NORTH AMERICA, USA, Louisiana, SOUTH AMERICA, Argentina, Brazil, Peru.

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