Relationships of Genetic Background Among Pyricularia Species, the Blast Pathogens on Gramineous Plants
Project/Area Number |
02454053
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Research Category |
Grant-in-Aid for General Scientific Research (B)
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Allocation Type | Single-year Grants |
Research Field |
植物保護
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Research Institution | Kobe University |
Principal Investigator |
KATO Hajime Kobe Univ. Fac. of Agri. Professor, 農学部, 教授 (60221181)
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Project Period (FY) |
1990 – 1991
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Project Status |
Completed (Fiscal Year 1991)
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Budget Amount *help |
¥7,000,000 (Direct Cost: ¥7,000,000)
Fiscal Year 1991: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 1990: ¥5,700,000 (Direct Cost: ¥5,700,000)
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Keywords | Magnaporthe grisea / Mating type / Mating ability / Host range / millets |
Research Abstract |
Seeds and Pyricularia strains from Panicum miliaceum (Pm) and Setaria itarica (Si) collected from a mountainous area of Japan were used in order to examine the relationships of differentiation of pathogenicity. l. Host range : Seven tribes of gramineous plants were utilized for inoculation tests. 1) Pm-strain attacked eighteen species among twenty seven. No pathogenicity was found against rice, Si and Eleusine coracana (Ec). No differentiated races were detected to Panicum miliaceum from Japan. 2) Si-strain attacked fourteen species among thirty one. There were races to Setaria itarica from Japan and China and no pathogenicity against rice, Pm and Ec. 2. Mating type : Standard isolates of mating types A and a of Ec were crossed with isolates of Pm and Si-strains to decide the mating type. 1) Pm-strain was classified into a-type (26 isoiates out of 39 isolates) and no A-type. 2) Si-strain was six A-type and nine a-type. 3. Mating ability : 1) Pm-strain was mated with Ec-strain, but ascospores were incomplete. Pm-strain was not mated with either rice-strain or Si-strain. 2) Si-strain was mated with both rice -strain and wheat-strain and some ascospores were fertile. Laggingchromosomes appeared 27 to 46% in the cross between Si-strain and Ec-strain and 24 to 35% in the cross between Si-strain and wheat-strain. Based on these results, Pyricularia from Pm and Si has differentiated into two strains (forma specialis), though both plants have been raised in the same area.
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Report
(3 results)
Research Products
(23 results)
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[Publications] Koganezawa,H.,Hibino,H.,Motoyoshi,F.,Kato,H.,Noda,H.,Ishikawa,K.and Omura,T.: "Nucleotide sequence of segment S9 of the genome of rice gall dwargf virus." J.gen.Virology. 71. 1861-1863 (1990)
Description
「研究成果報告書概要(和文)」より
Related Report
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[Publications] Koizumi,S.,Komada,H.,Kato,H.,Yoshino,R.,Ichinoe,M.and Hayashi,N.: "Isolation of wheat and barley scab pathogens from wheat and barley field soil in Japan." 日植病報. 57. 263-267 (1991)
Description
「研究成果報告書概要(和文)」より
Related Report
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[Publications] Noda,H.,Ishikawa,K.,Hibino,H.,Kato,H.and Omura,T.: "Nucleotide sequences of genome segment S8,encoding a capsid protein,and S10,encoding a36K protein,of rice gall dwarf virus" J.gen.Virology. 77. 2873-2842 (1991)
Description
「研究成果報告書概要(和文)」より
Related Report
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[Publications] koganezawa, H., Hibino, H., Motoyoshi, F., Kato, H., Noda, H., Ishikawa, K. and Omura, T.: "Nucleotide sequence of segment S9 of the genome of rice gall dwarf virus." J. gen. Virology. 71. 1861-1863 (1990)
Description
「研究成果報告書概要(欧文)」より
Related Report
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[Publications] Koizumi, S., Komada, H., Kato, H., Yoshino, R., Ichinoe, M. and Hayashi, N.: "Isolation of wheat and barley scab pathogens from wheat and barley field soil in Japan." Ann. Phytopath. Soc. Japan. 57. 263-267 (1991)
Description
「研究成果報告書概要(欧文)」より
Related Report
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[Publications] Noda, H., Ishikawa, K., Hibino, H., Kato, H. and Omura, T.: "Nucleotide sequences of genome segment S8, encoding a capsid protein, and S10, encoding a36K protein, of rice gall dwarf virus." J. gen. Virology. 77. 2873-2842 (1991)
Description
「研究成果報告書概要(欧文)」より
Related Report
-
-
[Publications] Koizumi,S.,Komada,H.,Kato,H.,Yoshino,R.,Ichinoe,M.and Hayashi,N.: "Isolation of wheat and barley scab pathogens from wheat and barley field soil in Japan." 日植病報. 57. 263-267 (1991)
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[Publications] Noda,H.,Ishikata,K.,Hibino,H.,Kato,H.and Omura,T.: "Nucleotide sequences of genome segment S8,encoding a capsid protein,and S10,encoding a36K protein,of rice gall dwarf virus" J.gen.Virology. 77. 2873-2842 (1991)
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[Publications] KOGANEZAWA,H.,HIBINO,H.,MOTOYOSHI,F.,KATO,H.,NODA,H.,ISHIKAWA,K.& OMURA,T.: "Nucleotide sequence of segment S9 of the genome of rice gall dwarf virus" Journal of General Virology. 71. 1861-1863 (1990)
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