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Meroterpenes from Psoralea corylifolia against Pyricularia oryzae
Planta Medica, 2014Six new meroterpenes, namely, 13-methoxyisobakuchiol (1), 13-ethoxyisobakuchiol (2), 12,13-dihydro-13-hydroxybakuchiol (3), Δ(10)-12,13-dihydro-12-(R,S)-methoxyisobakuchiol (4 and 5), and 15-demetyl-12,13-dihydro-13-ketobakuchiol (6), together with four known ones, namely, Δ(3),2-hydroxybakuchiol (7), Δ(1),3-hydroxybakuchiol (8), bakuchiol (9), and Δ(1,
Yingchun Wu, Yiming Li, Fujiang Guo
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Heterokaryosis and parasexuality in Pyricularia oryzae Cavara
Canadian Journal of Microbiology, 1976Auxotrophs in three different races of Pyricularia oryzae were obtained following ultraviolet mutagenesis, and tested for complementarity on minimal medium. Prototrophic growth resulted between combinations of different auxotrophs of single strains, but not between strains.
A D, Genovesi, C W, Magill
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Studies on the Sporulation of Pyricularia Oryzae Cav.
Madras Agricultural Journal, 1971It has been the experience of many Research workers engaged in the study of rice blast disease that considerable difficulties are being encountered in securing sufficient amount of sporulation in culture while multiplying the pathogen for inoculation purposes. It is also known that unless the spore load is of sufficient magnitude successful results are
GOVINDASWAMY C.V +2 more
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Mechanism of resistance to pyrazophos in Pyricularia oryzae
Netherlands Journal of Plant Pathology, 1980Pyrazophos-resistant strains ofPyricularia oryzae were isolated from sectors in colonies of the fungus on a pyrazophos-containing agar medium. In contrast to the wild-type strain, resistant strains did not metabolize pyrazophos (Afugan, Curamil) into its phosphate analogue and 2-hydroxy-5-methyl-6-ethoxycarbonylpyrazolo(1,5-a)pyrimidine (PP), which is ...
de Waard, M.A., van Nistelrooy, J.G.M.
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Microbiology Research, 2020
Pyricularia oryzae is a plant pathogenic fungus that severely affects rice production. Past studies, primarily using mutants generated by spontaneous mutations or artificial physical and chemical mutagenesis, have determined that melanin is required for ...
Siyi Zhu +7 more
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Pyricularia oryzae is a plant pathogenic fungus that severely affects rice production. Past studies, primarily using mutants generated by spontaneous mutations or artificial physical and chemical mutagenesis, have determined that melanin is required for ...
Siyi Zhu +7 more
semanticscholar +1 more source
Role of Energy in Pathogenic Variability of Pyricularia oryzae
Journal of Phytopathology, 1983Abstract Pyricularia oryzae Cav. reacts differently to different varieties. IB race group attacked Zenith for three consecutive years for both rabi and kharif seasons under artificial inoculation condition. Three different isolates were obtained in IB race which differed in their pathogenicity giving a constant susceptible reaction to Zenith.
C. R. Mohanty, S. Gangopadhyay
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Action of the antipenetrant, tricyclazole, on appressoria of Pyricularia oryzae
Physiological Plant Pathology, 1983The antipenetrant, tricyclazole, blocked melanin biosynthesis and protected unwounded, but not wounded, rice plants from infection by a wild-type isolate of Pyricularia oryzae. Two "buff mutants" genetically deficient in melanin biosynthesis infected wounded but not unwounded plants.
C.P. Woloshuk, H.D. Sisler, E.L. Vigil
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แอนตาโกนิสติกแบคทีเรียเพื่อยับยั้ง Pyricularia oryzae ที่ก่อโรคใหม่ในข้าว
งานวิจัยนี้มีจุดมุ่งหมายเพื่อค้นหาแบคทีเรียที่มีความสามารถยับยั้ง Pyricularia oryzae ที่ก่อ โรคไหม้ในข้าว โดยนำแบคทีเรีย 10 สายพันธุ์ที่คัดแยกมาจากดินและน้ำทะเลจากงานวิจัยก่อนหน้านี้มา ทดสอบความสามารถในการยับยั้งราด้วยวิธี dual culture และพบว่าแบคทีเรียสายพันธุ์ M23, M25 และ M26 มีความสามารถยับยั้ง P. oryzae ได้สูงที่สุด ด้วยเปอร์เซ็นต์การยับยั้ง 48.33,openaire +1 more source
Overwintering of Pyricularia oryzae in wild infected foxtails
Journal of General Plant Pathology, 2017The rice blast fungus Pyricularia oryzae mainly overwinters in infested rice organs stored indoors, whereas it is difficult or impossible for the pathogen to overwinter outdoors. By contrast, blast pathogens infecting weed grasses must overwinter outdoors every winter to continue their life cycle.
Kosuke Akase, Motoaki Kusaba
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Mass cultivation of conidia of Pyricularia oryzae
Journal of Plant Pathology, 2021Zhong-na Hao +7 more
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