A note onArmillaria mellea subsp.nipponica subsp. nov. in Japan

  title={A note onArmillaria mellea subsp.nipponica subsp. nov. in Japan},
  author={Joo Young Cha and Tsuneo Igarashi},
Basidiomes of homothallicArmillaria mellea complex were discovered in the forests of Hokkaido. Their monosporous isolates showed partial compatibility with North AmericanA. mellea s. str. haploid testers. The morphological characteristics of basidiomes differed from other temperateA. mellea s. str. in several aspects. Here, JapaneseA. mellea s. str. is reclassified asA. mellea subsp.nipponica and its basidiome morphologies and habitats are described. 

Seven Armillaria species identified from Hokkaido Island, northern Japan

Sixty-two isolates from basidiocarps of Armillaria spp. were obtained from Hokkaido Island, northern Japan. Six species (Armillaria cepistipes, A. gallica, A. nabsnona, A. ostoyae, A. sinapina, and

Armillaria species associated with Gastrodia elata in Japan

Clear isozyme profiles of esterases were obtained with all isolates except one and could be used for identification of the Armillaria species in Hokkaido as a useful complement to the mating-type method.

Armillaria jezoensis, a new symbiont ofGaleola septentrionalis (Orchidaceae) in Hokkaido

NineArmillaria isolates obtained from the roots of Galeola septentrionalis in Hokkaido were identified as A. jezoensis by means of mating tests, showing better mycelial growth and rhizomorph formation on GDA medium.

Genetic variation in Armillaria mellea subsp. nipponica estimated using IGS-RFLP and AFLP analyses

The results suggest that the large distribution of the isolates within the same subgroup were established via the basidiospore from a common parental strain.

Biological Species of Armillaria in Japan.

The existence of 10 intersterile groups of Armillaria was determined by pairing haploid single spore isolates obtained from 20 basidiocarps from a wide geographic distribution in Japan and compatibility reactions were used to identify these to species.

The nonheterothallic life cycle of Japanese Armillaria mellea

The life cycle ofJapanese Armillaria mellea was studied with regard to basidiomata formation from monosporous cultures, the nuclear behavior during basidiospore formation and germination, and DNA

Population Structure of Basidiomycetes

Despite a common ancestry, it takes a critical microscopic or biochemical examination to recognize the relationship between these groups; they differ radically in gross morphology, life history, and population structure.

Armillaria species in Japan identified by isozyme patterns with special reference to the biological species of the northern hemisphere

These iso enzyme patterns showed little variability between haploid and diploid hyphae even under different cultural conditions among isolates tested, and there were no differences on the whole in isozyme patterns among European biological species ofmillaria.

Significance of Armillaria Species in Taxonomy, Forest Ecology and Plant Pathology

The difficulties in identification of Armillaria species are reviewed, a species identification key for Korean indigenous species are suggested, and the significance of the genus in terms of forest ecology and plant pathology is discussed.



Biological species and morphological characteristics ofArmillaria mellea complex in Hokkaido:A. sinapina and two new species,A. jezoensis andA. singula

Three intersterility groups ofArmillaria mellea sensu lato were discovered by examining all pairwise combinations of monosporous isolates of basidiomes collected in Hokkaido. One of them, group IV,

Biological Species and Morphological Characteristics of Armillaria mellea Complex in Hokkaido:A. ostoyae and A. bulbosa

The different morphological forms of Armillaria mellea (V AHL; FR.) KUMMER complex collected in Hokkaido were found to be composed of four intersterility groups or biological species by using all


The root rot fungus Armillaria mellea in the broad sense represents a complex of different morphological forms. Two new and previously undescribed forms were found to belong to two biological species

Morphological characterization of Armillaria ostoyae and Armillaria sinapina sp.nov

In Quebec, the root rot fungus Armillaria mellea (Vahl: Fr.) Kummer in the broad sense was found to be composed of three intersterile groups or biological species by using mating tests with standard

Sustématique des Armilaires du groupe Mellea. Conséquenmces phytopathologiques

The five biolo-gical species of the Armillaria complex as defined by Korhonen coincide with species already defined by other authors on the basis of their morphology and have been given latin namenelature.

The Armillaria species in Europe: a literature review

A literature survey is given of the five European honey mushrooms and their nomenclature, geographical distribution, hosts, some characteristics, and practical importance (including pathogenicity) are treated.

Armillaria species from south-eastern Australia

Biological species of Armillaria mellea in North America.

SUMMARYArmillaria mellea consists of at least ten reproductively isolated groups, the equivalent of “biological species.” Each biological species possesses bifactorial heterothallism with compatibi...

Identification of Kenyan Armillaria isolates by cultural morphology, intersterility tests and analysis of isozyme profiles

Three groups of morphologically distinct isolates were observed among nine Kenyan Armillaria isolates based on their mycelium and rhizomorphs characteristics, and it was shown that morphologically similar isolates had similar isozyme profiles of esterases but their profiles however differed from those of the European A. ostoyae.

Interfertility and clonal size in the Armillariella mellea complex

The naturally occurring clones of Armillariella species have been identified by using incompatibility factors as genetic markers and on the basis of demarcation line formation in confrontations between diploid pure cultures in good agreement.