Kabatia
Kabatia Bubák, in Kabát & Bubák, Öst. bot. Z. 54: 28 (1904)
= Colletotrichella Höhn., Sber. Akad. Wiss. Wien, Math.-naturw. Kl., Abt. 1 125(1-2): 99 (1916)
= Pseudogloeosporium Jacz., Opredelitel' Gribov, 2 Fungi Imperfecti (Petrograd): 136 (1917)
Citation when using this entry, Chen C. et al. in prep. – An updated monograph of Coelomycetes, Mycosphere
Index Fungorum, Facesoffungi number FoF 07422, MycoBank, GenBank
Classification: incertae sedis, Dothideomycetes, Fungi
Parasitic on host plants in terrestrial habitats. Sexual morph is undetermined. The asexual morph is charactrised by subcuticular conidiomata, which are dark brown, occur singly, and unilocular. The upper wall of conidiomata is composed of thick-walled and dark brown hyphae, which are converging toward the center of the conidiomata. The ostiole is absent and dehiscence by radial ruptures from the center to the periphery. Conidiophores are short, cylindrical and formed from the inner layer of the base and sides of the conidiomata wall. The conidiogenous cells are hyaline, doliiform to cylindrical, determinate, discrete, smooth and formed from to the basal wall. Conidia are hyaline, fusiform, clavate, falcate or cylindrical, rarely guttulate, base truncate, apex tapered, with 0–2-septate near the apices, smooth-walled (Sutton 1980, Li et al. 2020).
Type species: Kabatia latemarensis Bubák, in Kabát & Bubák, Öst. bot. Z. 54: 29 (1904)
= Kabatia lonicerae var. latemarensis (Bubák) Conners, Can. J. Bot. 37(3): 425 (1959)
Notes: Kabatia was revised by Conners (1959) and Sutton (1980) and K. latemarensis accepted as the type species by Bubák and Kabát (1904). Kabatia can cause leaf lesions of plants (Rakhimova et al. 2017). Krug (1977) gave a brief review of this genus and added a combination (K. valpellinensis ＝ Marsonia valpellinensis). Guignardia and Discosphaerina are treated as the sexual morph of Kabatia by Reusser (1964) and Sivanesan (1984). However, there is no convincing evidence for these aspects. Currently, there are 10 species listed in Kabatia in MycoBank (September 2023). Nevertheless, there are no sequence data available in GenBank (September 2023). Molecular studies are necessary to determine the classification status of this genus and link its correct sexual morph. The updated taxonomic treatment of this genus is genera incertae sedis, Dothideomycetes (Wijayawardene et al. 2022).
For all accepted species: see Species Fungorum, and search Kabatia.
Kabatia spp. (redrawn from Sutton 1980, a, b, e K. periclymeni, c, f K. lonicerae var. involucratae, d K. latemarensis) a Surface view of conidioma. b Vertical section of conidioma. c Conidiogenous cells and developing conidia. d–f Conidia. Scale bars a–b = 50 μm, c–f = 20 μm. (Originally published in Li et al. (2020) and republished with authority).
References
Bubák F, Kabát JE. 1904 – Einige neue Imperfecten aus Böhmen und Tirol. Österreichische Botanische Zeitschrift 54(1), 22–31.
Conners IL. 1959 – Species of Leptothyrium and Kabatia on Lonicera. Canadian Journal of Botany 37, 419–429.
Krug JC. 1977 – Kabatia valpellinensis reported from Switzerland. Sydowia 29, 275–277.
Li WJ, McKenzie EH, Liu JK, Bhat DJ et al. 2020 – Taxonomy and phylogeny of hyaline-spored coelomycetes. Fungal Diversity 100, 279–801.
Rakhimova YV, Yermekova BD, Assylbek AM. 2017 – Poorly known Kabatia species causing leaf spots disease on honeysuckle in Kazakhstan. Current Research in Environmental & Applied Mycology (Journal of Fungal Biology) 7(2), 121–128.
Reusser F. 1964 – Übcr einige Arten der GattungGuignardia Viala et Ravaz. J Phytopathol 51, 205–240.
Sivanesan A. 1984 – The bitunicate Ascomycetes and their anamorphs. J. Cramer, Vaduz, 1–701.
Sutton BC. 1980 – The Coelomycetes. Fungi imperfecti with pycnidia, acervuli and stromata. Commonwealth Mycological Institute, Kew.
Wijayawardene NN, Hyde KD, Dai DQ, Sánchez-García ML et al. 2022 – Outline of Fungi and fungus-like taxa–2021. Mycosphere 13(1), 53–453.
Edited by Kevin D. Hyde1,3 & Ishara S. Manawasinghe1
1Innovative Institute for Plant Health, College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, Guangdong, P.R. China.
2Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand.
3Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, Thailand; School of Science, Mae Fah Luang University, Chiang Rai, Thailand.
Published online 2024-September 30.
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