Two weather-based models for predicting the onset of seasonal release of ascospores of Leptosphaeria maculans or L. biglobosa
نویسندگان
چکیده
a Centre for Cropping Systems, Department of Agriculture and Food, Western Australia, PO Box 483, Northam, WA 6401, Australia; b Rothamsted Research, Harpenden, Hertfordshire, AL5 2QJ, UK; c UMR d’Agronomie INRA/INA P-G, BP 1, 78850 Thiverval-Grignon, France; d Department of Agriculture and Food, Western Australia, Locked Bag 4, Bentley Delivery Centre, WA 6983, Australia; e School of Plant Biology, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia; f ADAS, Boxworth, Cambridge, CB3 8NN, UK; g Institute of Plant Genetics, Polish Academy of Sciences, Strzeszynska 34, 60-479 Poznan, Poland; h NSW Department of Primary Industries, Wagga Wagga Agricultural Institute, PMB, Wagga Wagga, NSW 2650, Australia; i Department of Plant Science, University of Manitoba, Winnipeg, MB, R5T 2N2, Canada; j CETIOM, Centre de Grignon, BP 4, 78850, Thiverval-Grignon, France; and k School of Earth and Geographical Sciences, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
منابع مشابه
Detection of Leptosphaeria maculans and Leptosphaeria biglobosa Causing Blackleg Disease in Canola from Canadian Canola Seed Lots and Dockage.
Blackleg, caused by Leptosphaeria maculans, is a major threat to canola production in Canada. With the exception of China, L. maculans is present in areas around the world where cruciferous crops are grown. The pathogen can cause trade barriers in international canola seed export due to its potential risk as a seed contaminant. The most recent example is China restricting canola seeds imported ...
متن کاملSeasonal and Diurnal Patterns of Spore Dispersal by Leptosphaeria maculans
Canola (Brassica napus L. and B. rapa L.), is one of the major oilseed crops grown worldwide. With significant expansion of acreage sown to canola during the past two decades, concern about blackleg, the most serious disease of canola, has increased (3,4). Blackleg disease is caused by Leptosphaeria maculans (Desmaz.) Ces. & De Not. (anamorph: Phoma lingam (Tode:Fr.) Desmaz.). The pathogen can ...
متن کاملتفکیک گونههای Leptosphaeria maculans و Leptosphaeria biglobosa عوامل بیماری ساق سیاه کلزا با برخی خصوصیات هاگهای جنسی در برخی جدایهها از استانهای مازندران و گلستان
خصوصیات آسکوسپورهای هشت جمعیت قارچهای عوامل بیماری ساق سیاه کلزا Leptosphaeria maculans و L. biglobosa در استانهای مازندران و گلستان جداسازی شده از بقایای کلزا و خردل وحشی مورد ارزیابی قرار گرفت. نتایج تجزیه واریانس طول و عرض آسکوسپورها نشان داد که اختلاف معنی داری در سطح 1% در جمعیتهای هر دو گونه وجود دارد. تغییرات طول و عرض آسکوسپورها به ترتیب 25/6 و 5/2 میکرومتر از بالاترین تغییرات دامنه ...
متن کاملGenomes and Transcriptomes of Partners in Plant-Fungal- Interactions between Canola (Brassica napus) and Two Leptosphaeria Species
Leptosphaeria maculans 'brassicae' is a damaging fungal pathogen of canola (Brassica napus), causing lesions on cotyledons and leaves, and cankers on the lower stem. A related species, L. biglobosa 'canadensis', colonises cotyledons but causes few stem cankers. We describe the complement of genes encoding carbohydrate-active enzymes (CAZys) and peptidases of these fungi, as well as of four rela...
متن کاملEpidemiology / Épidémiologie Prevalence of pathogenicity groups of Leptosphaeria maculans in western Canada and North Dakota, USA
Blackleg, caused by Leptosphaeria maculans, is an economically important disease of canola (Brassica napus). Little is known about the current distribution of pathogenicity groups (PGs) of L. maculans in Canada and the United States. Four hundred and eighty-nine isolates of L. maculans or Leptosphaeria biglobosa from western Canada and North Dakota, United States, were placed in five PGs (PG-1 ...
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