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1. Padil Species Factsheet Scientific Name: Common Name Image 1. PaDIL Species Factsheet Scientific Name: Guignardia musae Racib. Ascomycetes, Botryosphaeriaceae Common Name Banana freckle Live link: http://www.padil.gov.au/pests-and-diseases/Pest/Main/136600 Image Library Australian Biosecurity Live link: http://www.padil.gov.au/pests-and-diseases/ Partners for Australian Biosecurity image library Department of Agriculture, Water and the Environment https://www.awe.gov.au/ Department of Primary Industries and Regional Development, Western Australia https://dpird.wa.gov.au/ Plant Health Australia https://www.planthealthaustralia.com.au/ Museums Victoria https://museumsvictoria.com.au/ 2. Species Information 2.1. Details Specimen Contact: Dr Jose R. Liberato - [email protected] Author: Liberato JR, Van Brunschot S, Grice K, Henderson J & Shivas RG Citation: Liberato JR, Van Brunschot S, Grice K, Henderson J & Shivas RG (2006) Banana freckle (Guignardia musae )Updated on 10/21/2011 Available online: PaDIL - http://www.padil.gov.au Image Use: Free for use under the Creative Commons Attribution-NonCommercial 4.0 International (CC BY- NC 4.0) 2.2. URL Live link: http://www.padil.gov.au/pests-and-diseases/Pest/Main/136600 2.3. Facets Status: Exotic Regulated Pest - absent from Australia Group: Fungi Commodity Overview: Horticulture Commodity Type: Fresh Fruit Distribution: South and South-East Asia, Australasian - Oceanian 2.4. Other Names Macrophoma musae (Sacc.) Berl. & Voglino Phoma musae Sacc. Phoma musae C.W. Carp. Phomatospora musae Yen Phyllosticta musarum (Cooke) Aa (anamorph) Phyllostictina musarum (Cooke) Petr. Sphaeropsis musarum Cooke 2.5. Diagnostic Notes Symptoms: The fungus infects banana leaves and fruit. Numerous, minute, brown to dark brown spots up to 4 mm occur on the upper surface of older leaves. The spots contain raised black stromata containing pycnidia and sometimes perithecia. The lesions are rough to touch. The fungus: Pycnidia prominent under the raised epidermis, mostly epiphyllous, sometimes amphigenous, single or clustered, unilocular, 60?170, mostly 135 µm in diameter, globose, pyriform or tympaniform, the upper region firmly grown together with the epidermis and the subepidermal stroma, conspicuously papillate, with 10?30 µm wide pore. Stroma prosenchymatous, clypeus-like developed around the upper part of the pycnidia, subepidermal, composed of very dark hyphae. Wall in the lower and lateral region hardly developed, only composed of some compressed brownish hyphae or brownish, thin-walled cells, but 1?4 cells thicken the upper part, composed of flattened, dark brown cells, darkest around the pore and hyaline towards the conidiogenous region. Conidiogenous cells cylindrical or conical, 4?11 x 2.5?5 µm. Conidia one-celled, obovoidal, ellipsoidal or short cylindrical, pyriform when young, with a truncate base, broadly rounded apically 2.6. References CAB International (1990) Distribution maps of plant diseases. Guignardia musae Racib. Map 623. Chuang TY (1981) Isolation of Phyllosticta musarum, causal organism of banana freckle. Transactions of the British Mycological Society 77: 670-671. Crop Protection Compendium 2005 Edition. Guignardia musae (freckle disease of banana). CAB International, Wallingford, UK. Jones DR (1994) Freckle. in: Ploetz, R.C.; Zentmyer, G.A.; Nishijima, W.T.; Rohrbach, K.G.. Ohr, H.D. (eds.). Compendium of tropical fruit disease. St. Paul, APS Press. p.9-10. Jones DR (2000) Diseases of banana, abaca and enset. (CABI Publishing: Wallingford, UK). Ploetz RC, Thomas JE, Slabaugh WR (2003) Diseases of banana and plantain. In Ploetz RC (ed) Diseases of tropical fruit cr 2.7. Web Links Queensland Department of Primary Industries and Fisheries: http://www2.dpi.qld.gov.au/horticulture/7926.html Species Profiles for Pacific Island Agroforestry: http://www.agroforestry.net/tti/Musa-banana-plantain.pdf 3. Diagnostic Images Large spots on leaf of cv. Lady Finger Small spots on leaf of cv. Lady Finger (copyright DPI&F, for use contate (copyright DPI&F, for use contate [email protected]) [email protected]) Host symptoms - leaves: Sharon Van Host symptoms - leaves: Sharon Van Brunschot DPI&F Brunschot DPI&F Stromata on leaf (BRIP 47555) Symptoms on leaf (copyright DPI&F, for use Host symptoms - leaves: Dr Jose R. contact [email protected]) Liberato DPI&F Host symptoms - leaves: Kathy Grice DPI&F Symptoms on leaf (copyright DPI&F, for use Symptoms on leaf (copyright DPI&F, for use contact [email protected]) contact [email protected]) Host symptoms - leaves: Kathy Grice DPI&F Host symptoms - leaves: Kathy Grice DPI&F Pycnidia on leaf (BRIP 47555) Pycnidia on leaf (BRIP 47555) Spores-LM: Dr Jose R. Liberato DPI&F Spores-LM: Dr Jose R. Liberato DPI&F Pycnidium on leaf (BRIP 47555) Conidia (BRIP 45871) Spores-LM: Dr Jose R. Liberato DPI&F Spores-LM: Dr Jose R. Liberato DPI&F Conidia showing the characteristic Asci (BRIP 45871) gelatinous sheath and hyaline appendage Spores-LM: Dr Jose R. Liberato DPI&F (BRIP 45871) Spores-LM: Dr Jose R. Liberato DPI&F Ascus (BRIP 45871) Ascus (BRIP 45871) Spores-LM: Dr Jose R. Liberato DPI&F Spores-LM: Dr Jose R. Liberato DPI&F Asci (BRIP 45871) Ascospores (BRIP 45871) Spores-LM: Dr Jose R. Liberato DPI&F Spores-LM: Dr Jose R. Liberato DPI&F Results Generated: Saturday, September 25, 2021 .
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