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Article
Sequence analysis of cytochrome b gene in Vietnamese isolates of Hemileia vastatrix, the causal agent of coffee leaf rust, in relation to potential QoI fungicide resistance
Coffee leaf rust, caused by Hemileia vastatrix, is a devastating fungal disease threat to coffee production and the economy globally. Spraying fungicides including quinone outside inhibitors (QoIs) can effectivel...
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Article
PCR–RFLP analysis for detecting potential QoI and CAA fungicide resistance in onion and lettuce downy mildews
Downy mildew of onion and lettuce, caused by Peronospora destructor and Bremia lactucae, respectively, is distributed worldwide. Control of these serious diseases largely relies on oomycete fungicides including q...
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Article
Infection through wounds on shoots of pine seedlings by basidiospores of Cronartium orientale
Cronartium orientale is a heteroecious rust fungus that causes pine gall rust of two-needle pines, e.g., Japanese black pine (Pinus thunbergii) and Japanese red pine (Pinus densiflora). Basidiospores are discharg...
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Article
Control efficacy of the systemic acquired resistance (SAR) inducer acibenzolar-S-methyl against Venturia nashicola in Japanese pear orchards
Scab caused by Venturia nashicola is one of the most serious diseases of Asian pears, and conventional fungicides used to control scab can lose their efficacy when fungicide-resistant strains develop. In contrast...
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Article
Pathogenicity of Fusarium solani associated with a bark beetle, Scolytogenes birosimensis, to Pittosporum tobira
Pittosporum tobira seedlings were inoculated with Fusarium solani isolated from Scolytogenes birosimensis, a bark beetle that infects P. tobira. The fungus produced necrotic lesions in th...
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Article
A morphological and molecular survey of Japanese Melampsora species on willows reveals a new species and two new records
During morphological and molecular phylogenetic studies of Melampsora species on willows, one novel species, Melampsora salicis-reinii sp. nov., and two new records, M. ribesii-viminalis and M. ribesii-purpureae,...
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Article
Multiple Rpp-gene pyramiding confers resistance to Asian soybean rust isolates that are virulent on each of the pyramided genes
Since Asian soybean rust (ASR) isolates in South America are highly virulent, diverse, and distantly related to Japanese ones, limited numbers of resistance resources are available in soybean breeding in that ...
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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
Two new species and one new record of Melampsora on willows from China
Two new species of rust fungi, Melampsora salicis-purpureae sp. nov. and M. salicis-argyraceae sp. nov., and a new record, M. iranica, are described from China based on morphological characteristics and molecular...
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Article
Recent outbreaks of rust diseases and the importance of basic biological research for controlling rusts
Rust fungi are obligate plant parasites belonging to the order Pucciniales; they comprise about 7,800 species throughout the world. Some species seriously damage crops, vegetables, fruits and trees. Of these s...
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Article
Pathogenic races of soybean rust Phakopsora pachyrhizi collected in Tsukuba and vicinity in Ibaraki, Japan
Six races were identified among 26 single-lesion isolates of Phakopsora pachyrhizi from rust-infected leaves of nine samples of cultivated soybean and one sample of the wild host plant kudzu (Pueraria lobata) col...
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Article
Pathogenic diversity of soybean rust in Argentina, Brazil, and Paraguay
Phakopsora pachyrhizi, the cause of soybean rust, is an economically important pathogen of soybean in South America. Understanding the pathogenicity of indigenous fungal populations is useful for...
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Article
Phakopsora montana, another grapevine leaf rust pathogen in Japan
A new grapevine leaf rust (GLR) was found to be caused by Phakopsora montana. This new fungus naturally infects Crimson Glory vine (Vitis coignetiae), forming uredinia and telia on the leaves. Under experimental ...
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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 ...
