Phakopsora breyniae (Phakopsoraceae, Pucciniales), an autoecious macrocyclic species on Breynia cernua from Australia

A Phakopsora fungus was found on Breynia cernua (Phyllanthaceae) in northern Queensland and Northern Territory, Australia. The fungus formed subcuticular spermogonia and Milesia-type aecia together with Milesia-type uredinia and typical phakopsoroid telia on the same or separate plants. No autoeciou...

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Bibliographic Details
Published in:Mycological progress 2015-12, Vol.14 (12), p.1, Article 117
Main Author: Ono, Yoshitaka
Format: Article
Language:English
Subjects:
aeciospores
Biomedical and Life Sciences
Breynia
color
Ecology
Electron microscopes
Fungi
Life Sciences
Microbiology
Microscopy
National parks
new species
Phakopsora
Plant Sciences
Pores
Short Communication
Small mammals
Taxonomy
teliospores
urediniospores
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Description
Summary:A Phakopsora fungus was found on Breynia cernua (Phyllanthaceae) in northern Queensland and Northern Territory, Australia. The fungus formed subcuticular spermogonia and Milesia-type aecia together with Milesia-type uredinia and typical phakopsoroid telia on the same or separate plants. No autoecious, macrocyclic Phakopsora species was previously known on Breynia. Aeciospores and urediniospores were apically thick-walled and bore several scattered germ pores. In addition to ordinary urediniospores and teliospores, the fungus formed one-celled, dark-colored, thick-walled, laterally free spores in the uredinia. Apically thick-walled urediniospores, produced in the Milesia-type uredinia, with several scattered germ pores and the regular production of one-celled, free teliospore-like spores in the uredinia characterize this fungus. Thus, it is proposed as a new species, P. breyniae.
ISSN:1617-416X
1861-8952
DOI:10.1007/s11557-015-1138-8