Puccinia neorotundata
| Puccinia neorotundata | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Puccinia neorotundata | ||||||||||||
| Cummins |
Puccinia neorotundata is a stand fungal art from the order of the rust fungi (Pucciniales). The fungus is an endoparasite of sham asters . Symptoms of the infestation by the species are rust spots and pustules on the leaf surfaces of the host plants. It is common in South and Central America .
features
Macroscopic features
Puccinia neorotundata can only be recognized with the naked eye by means of the spore beds protruding on the surface of the host. They grow in nests that appear as yellowish to brown spots and pustules on the leaf surfaces.
Microscopic features
The mycelium of Puccinia neorotundata grows as with all Puccinia TYPES intercellular and forms Saugfäden that grow into the storage tissue of the host. The spermogonia and aecia of the species are unknown. The same applies to their uredia , they may not be trained. The parts of the species growing on both sides of the surfaces of the host leaves are dark cinnamon brown, densely grouped, powdery and uncovered. The yellow to golden-brown teliospores are two-celled, usually broadly ellipsoidal, wrinkled and usually 35–42 × 22–26 µm in size. Their stem is brownish.
distribution
The known distribution area of Puccinia neorotundata extends from Costa Rica to South America .
ecology
The host plants of Puccinia neorotundata are various sham asters ( Vernonia spp.). The fungus feeds on the nutrients present in the storage tissue of the plants, its spore beds later break through the leaf surface and release spores. The species goes through a development cycle of which only the telia and their host are known. It cannot therefore be said whether she will change host .
literature
- George Baker Cummins : Rust Fungi on Legumes and Composites in North America . University of Arizona Press, Tucson 1978, ISBN 0-8165-0653-1 .
Individual evidence
- ↑ Carvalho Júnior, AA, Figueiredo, MB & Hennen, JF 2004b. Catálogo dos fungos causadores de ferrugens (Uredinales) do Parque Estadual das Fontes do Ipiranga, São Paulo, SP. Hoehnea 31: 51-60. Online ( page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. (PDF; 1.4 MB)
- ↑ García-G., D., P. Buriticá-C., & L. Henao-M .: Elementos para la elaboración del Libro Rojo de hongos royas de Colombia. Rev. Acad. Colomb. Cienc. 31 (121): 449-468, 2007. ISSN 0370-3908 . Online ( Memento of the original from January 31, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. (PDF; 199 kB)
