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Summa Phytopathologica

Print version ISSN 0100-5405On-line version ISSN 1980-5454


FIGUEIREDO, Mário Barreto; COUTINHO, Leila Nakati; APARECIDO, Christiane Ceriani  and  PASSADOR, Martha Maria. Pustules on stems, leaves and pods of ornamental abutilon (Abutilon sp.) caused by Synchytrium australe. Summa phytopathol. [online]. 2007, vol.33, n.2, pp.195-198. ISSN 0100-5405.

The genus Abutilon includes a large number of ornamental species with nice foliage and flowers. The different species are known under several common names as Indian mallow, China jute, butterprint, etc. Plants of abutilon received for phytopathological analysis by the Instituto Biologico, São Paulo, Brazil showing curious rust like symptoms (pustules) on leaves, stems and pods were studied to determine the causal agent. Numerous yellow sporangia characteristic of zoosporic fungi belonging to the Order Chytridiales were found within the superficial intact galls. Based on KARLING (1955) paper the pathogen was identified as Synchytrium australe Speg. The voucher material was saved and settled in the Mycological Herbarium of the Institution under the number IBI/SP 11975. This was the first report of the occurrence of this species in Brazil.

Keywords : Chytridiales; ornamental plant.

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