Mucor piriformis. [Descriptions of Fungi and Bacteria].

Author(s):  
P. M. Kirk

Abstract A description is provided for Mucor piriformis. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: From decaying fruit (apple, goosberry, nectarine, peach, pear, plum, strawberry, etc.) and soil. DISEASE: None as a primary pathogen of plants; encountered as a secondary invader or as a saprobe. GEOGRAPHICAL DISTRIBUTION: Australia, Austria, Canada, Chile, France, Germany, Italy, Mexico, Rumania, Russia, UK, USA (Alabama, California, Oregon, Pennsylvania, Washington). TRANSMISSION: Movement of soil, or water-borne dispersal of sporangiospores.

Author(s):  
P. M. Kirk

Abstract A description is provided for Mortierella polycephala. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: From soil. DISEASE: None as a primary pathogen of plants; encountered as a saprobe. GEOGRAPHICAL DISTRIBUTION: Belgium, China, France, Gibraltar, India, Japan, Netherlands, New Zealand, UK, Ukraine, former USSR. TRANSMISSION: Movement of soil, or water-borne dispersal of sporangiospores.


Author(s):  
E. Punithalingam

Abstract A description is provided for Diaporthe citri. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Citrus aurantifolia, C. aurantium, C. grandis, C. limon, C. parasisi, C. reticulata and C. sinensis. DISEASE: Melanose of Citrus spp. and stem end rot of the fruit. Symptoms occur on the immature leaves, young branches, stalks and fruit. The very small spots enlarge, become water-soaked, sunken, dark with chlorotic halos and develop raised, corky, superficial, necrotic areas up to 1 mm diam. ; this spotting is frequently very abundant and scar-like, necrotic aggregations are formed; on the fruit the spots are sometimes arranged in rings, lines or curves. Leaves are distorted and may fall prematurely. The small, dying branches bear the same raised spots in which both spore stages are found. Diaporthe citri is one of the citrus pathogens which penetrates the fruit at the stem end and causes a rot in storage (7, 713; 23, 386; 50, 679). GEOGRAPHICAL DISTRIBUTION: Widespread in citrus growing areas (CMI Map 126, ed. 2, 1966). TRANSMISSION: Water-borne through the conidia.


Author(s):  
E. Punithalingam

Abstract A description is provided for Phomopsis tersa. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Passiflora edulis, P. edulis cv. Flavicarpa and Passilqora sp. (Passifloraceae). DISEASE: Post-harvest stem end rot of passion fruit. GEOGRAPHICAL DISTRIBUTION: Africa (Mauritius); Europe (Malta, Portugal); America (South America: Brazil); Asia (Malaysia, Sarawak, Sri Lanka); Australasia & Oceania (Australia: Queensland; Fiji). TRANSMISSION: Most probably by water-borne conidia during wet or humid conditions. It is also possible that conidia could be disseminated by contaminated knives during harvesting.


Author(s):  
P. M. Kirk

Abstract A description is provided for Gongronella butleri. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: From soil. DISEASE: None as a primary pathogen of plants; encountered as a secondary invader or as a saprobe. GEOGRAPHICAL DISTRIBUTION: Argentina, Australia, Bangladesh, Brazil, Chile, Ghana, Honduras, Hong Kong, India, Italy, Malaysia, Mauritius, New Caledonia, New Zealand, Nigeria, South Africa, Sri Lanka, Taiwan, Trinidad, Uganda, Uraguay, UK, USA (Florida, Georgia, Iowa, Maryland, Nevada, New Jersey, New York, Ohio, Wisconsin), former USSR, Zambia. TRANSMISSION: Movement of soil, or water-borne dispersal of sporangiospores.


Author(s):  
P. M. Kirk

Abstract A description is provided for Mortierella mutabilis. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: From soil. DISEASE: None as a primary pathogen of plants; frequently encountered as a secondary invader or as a saprobe. GEOGRAPHICAL DISTRIBUTION: Australia, Austria, China, Germany, Netherlands, New Zealand, UK, USA (North Carolina). TRANSMISSION: Movement of soil, or water-borne dispersal of sporangiospores.


Author(s):  
P. M. Kirk

Abstract A description is provided for Mucor plumbeus. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: From grain and soil. DISEASE: None as a primary pathogen of plants; encountered as a secondary invader or as a saprobe. GEOGRAPHICAL DISTRIBUTION: Algeria, Australia, Austria, Belgium, Canada, Chile, Costa Rica, Colombia, former Czechoslovakia, Denmark, Egypt, Finland, France, Germany, Greece, India, Indonesia, Iraq, Israel, Kenya, Libya, Malaysia, Netherlands, New Zealand, Nicaragua, Nigeria, Norway, Panama, Poland, Portugal, South Africa, Switzerland, Uganda, USA (California, New Jersey, New York, Michigan, Pennsylvania), former USSR, former Yugoslavia, Zaire, Zimbabwe. TRANSMISSION: Movement of soil, or water-borne dispersal of sporangiospores.


Author(s):  
A. Sivanesan

Abstract A description is provided for Cytospora sacchari. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Mostly on sheaths, also on cuttings, young shoots, stems and stubble of Saccharum officinarum, S. spontaneum and Holcus sorghum (Sorghum vulgare[Sorghum bicolor]). DISEASE: Sheath rot of sugarcane (Cytospora rot). GEOGRAPHICAL DISTRIBUTION: Widespread with sugarcane but reported on Holcus sorghum (Taiwan). TRANSMISSION: Presumably by water borne conidia.


Author(s):  
E. Punithalingam

Abstract A description is provided for Guignardia aesculi. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Aesculus glabra, A. hippocastanum (main host) (Hippocastanaceae). Several other species of Aesculus and subspecies including A. ambigua, A. arnoldiana, A. bushii, A. carnea, A. discolor, A. dupontii, A. hybrida, A. mississippiensis, A. mutabilis, A. neglecta, A. octandra, A. pavia, A. splendens, A. turbinata and A. woerlitzensis have been reported to be susceptible (Neely & Himelick, 1963; 50, 2509). DISEASE: Leaf blotch or black rot of Aesculus hippocastanum (horse chestnut) and other Aesculus species (5, 706; 28, 38; 64, 4521). GEOGRAPHICAL DISTRIBUTION: Europe (Austria, Belgium, France, Germany, Italy, Netherlands, Portugal, Romania, Switzerland, U.K., Yugoslavia); North America (Canada: Manitoba, New Brunswick, Nova Scotia, Ontario, Quebec; U.S.A. : Eastern U.S.A). TRANSMISSION: Presumably by water-borne conidia during wet conditions. Ascomata are produced on leaves left to over winter outside and both conidia and ascospores discharged from over wintered leaves have been reported to infect leaves of seedlings and produce blotch symptoms (Hudson, 1987).


Author(s):  
A. Sivanesan

Abstract A description is provided for Clypeoporthe iliau. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Saccharum. DISEASE: Iliau disease of sugarcane. GEOGRAPHICAL DISTRIBUTION: Perhaps widely scattered in sugarcane areas but rarely reported now. There are records for: Australia (Queensland), Brazil (Sao Paulo), Cuba, Hawau, Mauritius, Philippines and USA (Louisiana, Mississippi) (CMI Map 158, ed. 3, 1981). TRANSMISSION: Probably wind-borne, water-borne and soil-borne.


Author(s):  
D. Brayford

Abstract A description is provided for Cylindrocarpon effusum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Herb. IMI records on Ananas, Callitris, Camellia, Cocos, Dracaena and Grevillea, the nematode Radopholus similis, fruit bat guano and soil. DISEASE: Root rot. GEOGRAPHICAL DISTRIBUTION: Africa: Mauritius; Asia: Hong Kong, India, Vietnam; Australasia: Australia; North America: Honduras, West Indies. TRANSMISSION: Water-borne conidia.


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