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Article
Prevention of leaf yellowing in Asian soybean rust infected plants is associated with green cotyledon color and the infection index
Because the six major known resistance genes to Asian soybean rust (ASR) are pathotype-specific, they rarely offer durable resistance to all ASR pathogens. Thus, other types of resistance such as field resista...
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Article
Molecular map** of Asian soybean rust resistance in Chinese and Japanese soybean lines, **ao **g Huang, Himeshirazu, and Iyodaizu B
Asian soybean rust (ASR), caused by the fungus Phakopsora pachyrhizi, is one of the most serious soybean diseases in South America and other tropical and sub-tropical areas. The soybean lines, ‘**ao **g Huang,’ ...
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Article
Ophiostomatoid fungi isolated from Japanese red pine and their relationships with bark beetles
We isolated ophiostomatoid fungi from bark beetles infesting Pinus densiflora and their galleries at 24 sites in Japan. Twenty-one ophiostomatoid fungi, including species of Ophiostoma, Grosmannia, Ceratocystiops...
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Article
Constant association of ophiostomatoid fungi with the bark beetle Ips subelongatus invading Japanese larch logs
Ceratocystiopsis, Ceratocystis, Grosmannia, and Ophiostoma species were isolated from Ips subelongatus and beetle-infested Japanese larch logs collected at several areas in central and northern Honshu Island, Jap...
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Article
The teleomorph of Leptographium yunnanense, discovered in crosses among isolates from Thailand, China, and Japan
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Article
The teleomorph of Leptographium yunnanense, discovered in crosses among isolates from Thailand, China, and Japan
A teleomorph was discovered in crosses among isolates of Leptographium yunnanense isolated from Pinus spp. originating in Thailand, China, and Japan. The ascocarps are black, globose to subglobose, and lacking ne...
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Article
Teliospore-inducing activity for wheat leaf rust in the extracts of various host plant leaves infected with telia of rust fungi
MeOH and water extracts were obtained from 16 species of infected leaves with rust fungi belonging to 18 species in 6 families: Pucciniaceae, Melampsoraceae, Coleosporiaceae, Pileolariaceae, Phragmidiaceae, an...
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Article
Two species of Leptographium isolated from blue-stained sapwood of Pinus khasya and bark beetles in Thailand
Two species of Leptographium were isolated from blue-stained sapwood of Pinus khasya and bark beetle galleries in pine trees near Chiang Mai, Thailand. Based on morphological observations, these two species were ...
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Article
Caeoma tsukubaense n. sp., a rhododendron rust fungus of Japan and southern Asia, and its relationship to Chrysomyxa rhododendri
A rust fungus found in Japan on Rhododendron kaempferi, R. kiusianum, and R. dauricum has previously been identified as Chrysomyxa rhododendri. Light and scanning electron microscopy of fresh and herbarium materi...
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Article
Three new Ophiostoma species with Pesotum anamorphs associated with bark beetles infesting Abies species in Nikko, Japan
Three species of Ophiostoma possessing Pesotum anamorphs isolated from bark beetles and their galleries infesting Abies species in Nikko, Japan, are described as new species. Ophiostoma nikkoense is characterized...
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Article
Three new Ophiostoma species isolated from Japanese red pine
Three new species of Ophiostoma found on Japanese red pine are described as Ophiostoma pusillum sp. nov., O. botuliforme sp. nov., and O. nigrogranum sp. nov. Ophiostoma pusillum is characterized by oblong ascosp...
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Article
Correlation between pathogenicity and molecular characteristics in the willow leaf rusts Melampsora epitea and M. humilis in Japan
We studied the correlation between pathogenicity and restriction fragment length polymorphism (RFLP) type, which was determined by polymerase chain reaction-based RFLP analysis of the internal transcribed spa...
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Article
A substance inducing teliospore production in wheat leaf rust,Puccinia recondita f. sp.tritici
A substance inducing teliospore production inPuccinia racondita f. sp.tritici was found in water and methanol extracts of wheat leaves with telia of the wheat leaf rust just before harvest time. Methanol (MeOH) a...
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Article
Leptographium pini-densiflorae sp. nov. from Japanese red pine
ALeptographium species was isolated from deadPinus densiflora at six sites in Japan. The fungus is morphologically most similar toL. lundbergii but could be distinguished from that species by its short stipes, pr...
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Article
Ophiostomatoid fungi associated withIps cembrae in Japan and their pathogenicity of Japanese larch
Six ophiostomatoid fungi, i.e.,Ceratocystiopsis minuta, Ceratocystis laricicola, Ophiostoma brunneo-ciliatum, O. laricis, O. piceae andOphiostoma sp., were isolated from the galleries ofIps cembrae on Japanese Ia...
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Article
A newOphiostoma species isolated from Japanese oak infested byPlatypus quercivorus
A newOphiostoma species was isolated from the sapwood ofQuercus mongolica var.grosseserrata and described asOphiostoma longicollum sp. nov. The species is characterized by a long perithecial neck with a gelatinou...
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Article
Differentiation ofMelampsora rust species on willows in Japan using PCR-RFLP analysis of ITS regions of ribosomal DNA
To develop a reliable method for identifyingMelampsora species parasitic on willows in Japan, we differentiated 10Melampsora species by PCR-RFLP analysis. Internal transcribed, spacer (ITS) regions, including 5.8...
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Article
Life cycle and morphology ofMelampsora yezoensis onSalix serissaefolia
Uredinial and telial states of aMelampsora species occurring on the leaves ofSalix serissaefolia were for the first time recorded. Field observations and inoculation experiments showed that the spermogonial and a...
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Article
Mating type of isolates derived from the spermogonial state ofPuccinia coronata var.coronata
Hyphal confrontation between two haploid cultures originating from single basidiospores was used to determine the mating type ofPuccinia coronata var.coronata. Pairs of 15 single-basidiospore cultures were placed...