Biological Species of <i>Armillaria</i> in Japan

Ota, Yuko; Matsushita, Norihisa; Nagasawa, Eiji; Terashita, T.; Fukuda, Kenji; Suzuki, Kazuo

doi:10.1094/pdis.1998.82.5.537

Cited by 69 publications

(56 citation statements)

References 15 publications

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“…A. novaezelandiae was found on the native trees Nothofagus dombeyi and N. alpina and on the exotics Pseudotsuga menziesii and P radiata. These results are consistent with the view of Gregory et al (1991) and Ota et al (1998) that differences in host range and geographical distributions sometimes become more apparent after morphological studies of Armillaria specimens have been completed.…”

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confidence: 92%

Taxonomy ofArmillariain the Patagonian forests of Argentina

Pildain

Coetzee²,

Wingfield³

et al. 2010

Mycologia

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Abstract:The taxonomy of Armillaria in southern South America has received little attention since the work of Singer and others. In this study we examine the morphological traits and cultural features for taxa representing the lineages revealed based on molecular phylogeny, and we link them to previously described taxa based on morphology. Lineages I-IV were identified as Armillaria novae-zelandiae, A. montagnei, A. umbrinobrunnea comb. nov. and A. sparrei respectively. They could be differentiated morphologically based on dimension, features of the epicutis, annulus, stipe, hymenophoral trama and flavor and characteristics in culture. Furthermore there was no evidence of host preference for the species recognized. This is the first study integrating the phylogeny and morphology of Armillaria species from Patagonia, and it provides a foundation for future research on these fungi in South America.

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confidence: 92%

Taxonomy ofArmillariain the Patagonian forests of Argentina

Pildain

Coetzee²,

Wingfield³

et al. 2010

Mycologia

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“…nabsnona is reported as a species distributed on the west coast of North America and its range was described primarily in hardwoods of riparian areas. 30) Ota et al 31) have described the occurrence of A. nabsnona in the region of Honshu island, in central Japan. Based on mating tests, Mohammed et al 32) reported a compatible pairing of an isolate collected from Hokkaido Prefecture (Japan) with an Armillaria species described as NABS IX.…”

Section: Discussionmentioning

confidence: 99%

Identification of Armillaria nabsnona in Gastrodia Tubers

Sekizaki

Kuninaga

Yamamoto

et al. 2008

Biological & Pharmaceutical Bulletin

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Armillaria species (Basidiomycota, Agaricales, Tricholomataceae) are well known to be the cause of root rot and death to woody plants in boreal, temperate and tropical regions worldwide.1) Generally this species has a broad variety of hosts, presenting pathogenic or symbiotic properties depending on the available substrate. 1,2)Armillaria has been identified as an associate in certain achlorophyllous taxa of Orchidaceae including Gastrodia elata BL. 3,4) and Galeola septentrionalis REICHB. 5) Although many reports refer to Armillaria mellea as the main fungus symbiont of G. elata, 3,6) 4)In eastern traditional medicine, the tubers of this orchid have been used for the treatment of many kinds of diseases including headache, rheumatism, seizure, dizziness and circulation problems. 7,8) G. elata is considered as a difficult species to cultivate due to the need for different kinds of fungi colonization to achieve its full development.6) To increase the knowledge of the cultivation process and understand its relationship with the Armillaria, it is important to first identify which Armillaria species is involved in the association.In past decades, the identification of Armillaria spp. was based on mating tests and morphological characteristics. 2,9,10) However, those methods are very limited due to the great number of biological species and similar morphological characteristics among them.11,12) Furthermore, mating pairings require fresh haploid cultures that sometimes are not available and a long period is required to obtain results. 13,14) Methods based on molecular techniques are nowadays routinely used and provided a new perspective for phylogenetic and taxonomic studies.12,15-17) PCR-RFLP analysis profiles of intergenic spacer 1 (IGS-1) have been successfully applied to the Armillaria species identification. 12,13,18,19) Sequencing of the internal transcribed spacer (ITS) and intergenic spacer 1 (IGS-1) regions 14,20,21) has also been used for identification. The ITS and IGS sequences available in the GenBank and the development of efficient software have provided a valuable tool for differentiation as well as for the detection of polymorphism and heterogeneity among species. The ITS and IGS-1 of the ribosomal DNA are known to be highly polymorphic enabling the accurate species differentiation of the Armillaria.11) In some cases, however, ITS1 region sequences were proven to be nearly uniform among the Armillaria of northern hemisphere species. 11)The aim of this study was to apply molecular biological tools to identify which Armillaria species are involved in the association with G. elata. The ITS and IGS-1 regions of rDNA were amplified and sequenced for further comparison with other Armillaria species. PCR-RFLP of the IGS-1 region was performed with three different endonucleases. Morphological characteristics and compatibility tests were also used in the analysis. MATERIALS AND METHODS Fungal Isolation and CultivationFungal samples were harvested in July 2005, found in different root parts of G. elata, which ...

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“…nipponica, A. sinapina, A. gallica, A. ostoyae, A. cepistipes, A. ectypa, A. jezoensis, A. singula, A. nabsnona and various unnamed biological species from South East Asia (Sung et al 1989(Sung et al , 1992Mohammed et al 1994;Cha and Igarashi 1995;Sung et al 1995;Ota et al 1998Ota et al , 2009). …”

Section: Introductionmentioning

confidence: 99%