Exobasidium symploci-japonicae var. carpogenum var. nov. causing Exobasidium fruit deformation on Symplocos lucida in Japan

Abstract

Exobasidium symploci-japonicae var. carpogenum, causing Exobasidium fruit deformation on Symplocos lucida collected in Fukuoka Prefecture, Japan, is newly described based on morphological observations of hymenial structure and mode of basidiospore germination. This new variety differs morphologically from the type variety, particularly in the septal number of basidiospores and in the shapes and sizes of conidia formed on the medium. Colonies of this new variety are also distinguishable from those of the type variety by yeast-like growth, morphology, and color of colonies.

Differentiated surface fungal communities at point of harvest on apple fruits from rural and peri-urban orchards

“…As shown in Fig. 3 , the presence of potential pathogenic fungi may be related to a variety of plant diseases or fruit post-harvest rots; these fungi include Acremonium 55 , Aspergillus 10 , Entyloma 56 , Exobasidium 57 , Microstroma 58 , Mycosphaerella 59 , Nectria 55 , Penicillium 10 , Phoma 60 , Podosphaera 60 , Ramichloridium 61 , Sarocladium 62 , Stemphylium 63 and Tilletiopsis 53 . In particular, Acremonium (mainly enriched in peri-urban samples) might be associated with black spot disease in apple fruit 55 , 64 ; Penicillium and Aspergillus (mainly enriched in peri-urban samples) might be associated with apple post-harvest deterioration and rot 10 ; Mycosphaerella causes apple plant diseases 59 ; Nectria might cause apple tree canker 65 ; Phoma (mainly enriched in rural samples) causes apple rot 66 ; and Podosphaera causes apple mildew 60 .…”

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

“…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.…”