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Fungus on ginger rhizome (anamorph)
Martin Bemmann,
09-02-2014 12:28
Hi,
Yesterday I bought some rhizomes of Zingiber officinale for kitchen use in a supermarket. It was declared as "organic" and imported from China. With the naked eye I noticed some black spots that turned out to be heaps of conidia under the dissecting microscope, ejected from long beaked obpyriform pycnidia (0.24 x 0.6 mm) of waxy colour, the "beak" turned out to be fasciculate, consisting of a bundle of hyphae.
Conidia: lemon-shaped, dark brown sometimes with lipid bodies, 19.5 - 23 x 12-15µm
Someone wih an idea?
best regards
Martin
Hans-Otto Baral,
09-02-2014 12:51
Re : Fungus on ginger rhizome (anamorph)
Such mal bei Melanospora
Zotto
Zotto
Martin Bemmann,
09-02-2014 13:26
Re : Fungus on ginger rhizome (anamorph)
Perfect, Zotto! I was misleaded by finding not a single ascus. Melanospora zamiae is reported to be common on imported material from the tropics (Cannon&Hawksworth 1982). I found a list of pests imported to the US of 1958 where it is listed on Ginger originating from China and Japan (Hunt 1958: 51).
Best regards
Martin
Best regards
Martin