Taxonomy of Exobasidium otanianum causing Exobasidium leaf blight on Rhododendron species in Japan

Nagao, Hideyuki; Kurogi, Syu-ichi; Sato, Toyozo; Kakishima, Makoto

doi:10.1007/s10267-004-0181-0

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…Exobasidium Woronin, 1867 comprises 129 epithets listed in the Index Fungorum (http://www.indexfungorum.org/names/names.asp, accessed on October 21, 2021) and is the largest genus under Exobasidiales. Most species of the genus are known as plant pathogens that cause plant deformities characterized by blisters, witches' brooms, and galls on leaves, stems, flowers, shoots, and buds (Brewer et al, 2014; Ezuka, 1990a, 1990b, 1991a, 1991b; Nagao et al, 2001, 2006; Nagao, Kakishima, Akimoto, et al, 2003; Nagao, Kakishima, Kurogi, & Sato, 2004; Nagao, Kakishima, Ogawa, & Sato, 2003; Nagao, Kakishima, & Sato, 2004). These fungi infect several plants belonging to the family Ericaceae, such as Theaceae and Symplocaceae.…”

Section: Introductionmentioning

confidence: 99%

Leaf blister on two Ericaceae plants infected by Exobasidium species in Japan

2022

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Section: Introductionmentioning

confidence: 99%

Leaf blister on two Ericaceae plants infected by Exobasidium species in Japan

2022

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Exobasidium maculosum, a new species causing leaf and fruit spots on blueberry in the southeastern USA and its relationship with other Exobasidium spp. parasitic to blueberry and cranberry

et al. 2014

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Exobasidium leaf and fruit spot of blueberry (Vaccinium section Cyanococcus) is an emerging disease that has rapidly increased in prevalence throughout the southeastern USA. To determine whether this disease is caused by a new species of Exobasidium, we studied the morphology and phylogenetic relationship of the causal fungus compared with other members of the genus, including the type species E. vaccinii and other species that parasitize blueberry and cranberry (V. macrocarpon). Both scanning electron microscopy and light microscopy were used for morphological characterization. For phylogenetic analyses, we sequenced the large subunit of the rDNA (LSU) from 10 isolates collected from leaf or fruit spots of rabbiteye blueberry (V. virgatum), highbush blueberry (V. corymbosum) and southern highbush blueberry (Vaccinium interspecific hybrid) from Georgia and North Carolina and six isolates from leaf spots of lowbush blueberry (V. angustifolium) from Maine and Nova Scotia, Canada. LSU was sequenced from isolates causing red leaf disease of lowbush blueberry and red leaf spot (E. rostrupii) and red shoot (E. perenne) of cranberry. In addition, LSU sequences from GenBank, including sequences with high similarity to the emerging parasite and from Exobasidium spp. parasitizing other Vaccinium spp. and related hosts, were obtained. All sequences were aligned and subjected to phylogenetic analyses. Results indicated that the emerging parasite in the southeastern USA differs morphologically and phylogenetically from other described species and is described herein as Exobasidium maculosum. Within the southeastern USA, clustering based on host species, host tissue type (leaf or fruit) or geographic region was not detected; however, leaf spot isolates from lowbush blueberry were genetically different and likely represent a unique species.

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Taxonomy of Exobasidium otanianum causing Exobasidium leaf blight on Rhododendron species in Japan

Cited by 2 publications

References 2 publications

Leaf blister on two Ericaceae plants infected by Exobasidium species in Japan

Leaf blister on two Ericaceae plants infected by Exobasidium species in Japan

Exobasidium maculosum, a new species causing leaf and fruit spots on blueberry in the southeastern USA and its relationship with other Exobasidium spp. parasitic to blueberry and cranberry

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