Tübingen watering can mold
| Tübingen watering can mold | ||||||||||||
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(a) Colony on Czapek agar after 7 days of growth; (b) The yellowish colonies on Czapek agar from the bottom; (c) Spore-bearers and spherical conidial heads; (d) Conidia and sporangium with a bilayer structure |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Aspergillus tubingensis | ||||||||||||
| Raoul Mosseray |
The Tübingen watering can mold ( Aspergillus tubingensis ) is a mold of the Trichocomaceae family . It is very closely related to Aspergillus niger . The species was scientifically described in 1934 by Raoul Mosseray , who was looking for variants of the Aspergillus niger group in the Belgian Congo .
features
On Czapek agar , a special nutrient medium , the fungus forms 4–5 cm large, velvety colonies with a certain zoning, built up of a compact, basal white mycelium and a central zone. The 200 to 300 µm, sometimes up to 500 µm large conidial heads are spherical to radial. The slightly brownish colored conidia carriers are usually 2 to 3, but also up to 6 mm long. The sterigmata , i.e. the connections between conidia and conidia carriers, are formed in two rows. The first are 15 to 30 (50) µm long, the second numerous sterigmata are 7.5 to 10.0 µm × 2.8 to 3.3 µm. The conidia themselves are initially spherical and hyaline, but then become darker and then appear longitudinally streaked. When ripe they are flattened horizontally and measure 3.0 to 3.5 µm. Some stems form spherical sclerotia that are initially cream-colored, later pink or almost black.
Thin, velvety, indistinctly zoned colonies are formed on malt extract agar , which are shaded dark brown by strong sporulation.
meaning
The fungus can cause infectious keratitis in the eye. There are attempts to use it for bioremediation . Its enzymes can break down plastic.
Individual evidence
- ↑ R. Mosseray, Les Aspergillus de la section "Niger" Thom et Church , La Cellule Journal, 1934, Volume 43, pages 203-285.
- ^ Charles Thom, Kenneth B. Raper: A manual of the Aspergilli. (1945) doi : 10.1002 / jps.3030341113 (full text)
- ↑ L. Kredics, J. Varga, S. Kocsubé, R. Rajaraman, A. Raghavan, I. Dóczi, M. Bhaskar, TM Németh, Z. Antal, N. Venkatapathy, C. Vágvölgyi, RA Samson, M. Chockaiya , M. Palanisamy: Infectious keratitis caused by Aspergillus tubingensis. In: Cornea. Volume 28, Number 8, September 2009, pp. 951-954, doi : 10.1097 / ICO.0b013e3181967098 , PMID 19654512 .
- ↑ Pankaj Krishna, M. Sudhakara Reddy and SK Patnaik, 2005. Aspergillus tubingensis reduces the pH of the Bauxite Residue (Red Mud) Amended Soils. Water, Air, & Soil Pollution 167: pp. 201-209, doi : 10.1007 / s11270-005-0242-9 .
- ↑ Sehroon Khan, Sadia Nadir, Zia Ullah Shah, Aamer Ali Shah, Samantha C. Karunarathna: Biodegradation of polyester polyurethane by Aspergillus tubingensis . In: Environmental Pollution . tape 225 , p. 469-480 , doi : 10.1016 / j.envpol.2017.03.012 .
Web links
- MycoBank: Aspergillus tubingensis Mosseray 1934 . Fungal databases. Nomenclature and Species Banks. Online Taxonomic Novelties Submission. Retrieved October 21, 2011.