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Distribution,Etiology,Molecular Genetics and Management Perspectives of Northern Corn Leaf Blight of Maize(Zea mays L.)

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Phyton-International Journal of Experimental Botany 2022年第10期91卷 2111-2133页

作者： M.Ashraf Ahangar Shabir Hussain Wani Zahoor A.Dar Jan Roohi Fayaz Mohiddin Monika Bansal Mukesh Choudhary Sumit K.Aggarwal S.A.Waza Khursheed Ahmad Dar Ayman El Sabagh Celaleddin Barutcular Omer Konuşkan Mohammad Anwar Hossain Mountain Research Centre for Field Crops Sher-e-Kashmir University of Agricultural Sciences and Technology of KashmirJammu&Kashmir192124India Dry Land Agriculture Research Station Rangreth Sher-e-Kashmir University of Agricultural Sciences and Technology of KashmirJammu&Kashmir191132India School of Agricultural Biotechnology Punjab Agricultural UniversityLudhiana141001India Indian Institute of Maize Research PAU CampusLudhiana141001India College of Temperate Sericulture Sher-e-Kashmir University of Agricultural Sciences and Technology of KashmirJammu&Kashmir191132India Department of Agronomy Faculty of AgricultureKafrelsheikh UniversityKafr El-Sheikh33516Egypt Department of Field Crops Faculty of AgricultureSiirt UniversitySiirt56100Turkey Department of Field Crops Faculty of AgricultureUniversity ofÇukurovaAdana01330Turkey Department of Field Crops Faculty of AgricultureHatay Mustafa Kemal UniversityHatay31060Turkey Department of Genetics and Plant Breeding Bangladesh Agricultural UniversityMymensingh2202Bangladesh

Maize is cultivated extensively throughout the world and has the highest production among ***,Northern corn leaf blight(NCLB)disease caused by Exherohilum turcicum,is the most devastating limiting factor of maize *** disease causes immense losses to corn yield if it develops prior or during the tasseling and silking stages of crop *** has a worldwide distribution and its development is favoured by cool to moderate temperatures with high relative *** prevalence of the disease has increased in recent years and new races of the pathogen have been reported *** fungus *** is highly variable in *** different management strategies have proved effective to reduce economic losses from NCLB,the development of varieties with resistance to *** is the most efficient and inexpensive way for disease manage*** resistance for NCLB governed by Ht genes is a race-specific resistance which leads to a higher level of ***,some Ht genes can easily become ineffective under the high pressure of virulent strains of the ***,it is imperative to understand and examine the consistency of the genomic locations of quantitative trait loci for resistance to NCLB in diverse maize *** breeding approaches for pyramiding resistant genes against *** in maize can impart NCLB resistance under high disease pressure ***,the genome editing approaches like CRISPR-cas9 and RNAi can also prove vital for developing NCLB resistant maize *** such this review delivers emphasis on the importance and current status of the disease,racial spectrum of the pathogen,genetic nature and breeding approaches for resistance and management strategies of the disease in a sustainable manner.

关键词： Northern corn leaf blight etiology Exherohilum turcicum pathogenic variability disease resistance management strategies

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Evaluation under Semi-Controlled Conditions of the pathogenicity of Three Isolates of Phaeoisariopsis personata (Berk. & M.A Curt.)

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Agricultural Sciences 2023年第3期14卷 356-367页

作者： Bawomon Fidèle Neya Amado Sawadogo Tounwendsida Abel Nana Kadidia Koita University Center of Gaoua Nazi BONI University Bobo Dioulasso Burkina Faso Life and Earth Sciences Unit Joseph KI-ZERBO University Ouagadougou Burkina Faso

Peanut (Arachis hypogaea L.) late leaf spot is an important disease caused by Phaeoisariopsis personata (Berk. Et M. A Curt.). This fungus is responsible for the most damaging leaf spots in peanut production. The present experiment was undertaken to evaluate the pathogenic variability of Phaeoisariopsis personata in Burkina Faso. To this end, detached leaves and healthy plants of three peanut varieties were inoculated. Isolates I3TF, I2TG and I1TK of the pathogen (105 conidia/ml), collected respectively in the western, central and eastern agroecological zones of country, were used. The inoculated leaves were kept in Petri dishes on moist blotting paper and stored in the laboratory during the experimental period. The inoculated plants were grown under glass in pots containing a mixture of sterilized sand and clay. The development of disease was monitored and severity was scored every 15 days using rating scale. The results obtained in the laboratory and in the greenhouse revealed that there is pathogenic variability in the isolates tested. Indeed, for each variety, the highest severity score was recorded in plants inoculated with isolate I3TF and the lowest severity score with isolate I1TG. In the laboratory the severity scores ranged from 6.76 to 8.80 in TS32-1, 6.18 to 8.29 in SH70P and 5.98 to 7.92 in PC79-79. In the greenhouse, the average severity scores ranged from 5.61 to 8.33 in TS32-1, from 5.19 to 8.00 in SH70P, from 4.90 to 7.50 in PC79-79. Thus, the variety TS32-1 was the most susceptible to all three isolates of the pathogen.

关键词： Peanut Late Leaf Spot pathogenic variability Severity Score Isolate

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澳大利亚芥菜型油菜白锈病菌致病性变异及其对芥菜型油菜品种抗性改良的启示(英文)

澳大利亚芥菜型油菜白锈病菌致病性变异及其对芥菜型油菜品种抗性...

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第十二届国际油菜大会

作者： A.M.Gurung W.A.Burton C.Franke A.Salisbury Faculty of Land and Food Resources The University of MelbourneVictoria 3010Australia Victorian Department of Primary Industries HorshamVictoria 3400Australia Saskatchewan Wheat Pool Inc. Research and Development201-407 Downey RoadSaskatoonSaskatchewanS7N 4L8Canada Faculty of Land and Food Resources The University of MelbourneVictoria 3010Australia Victorian Department of Primary IndustriesHorshamVictoria 3400Australia

由卵菌纲的Albugo candida引起的白锈病是澳大利亚芥菜型油菜产业的潜在威胁。侵染芥菜型油菜的***生理小种被分为种类2（race2）,并根据它们对加拿大芥菜型油菜鉴别品种的侵染程度可以进一步划分为两个致病种群,即2A和2V。为了检测出... 详细信息

由卵菌纲的Albugo candida引起的白锈病是澳大利亚芥菜型油菜产业的潜在威胁。侵染芥菜型油菜的***生理小种被分为种类2（race2）,并根据它们对加拿大芥菜型油菜鉴别品种的侵染程度可以进一步划分为两个致病种群,即2A和2V。为了检测出当前侵染澳大利亚芥菜型油菜的的***是哪个种群,在2003年和2004年收集澳大利亚8个地方侵染芥菜型油菜的生理小种,并利用对不同致病群产生不同反应一套加拿大品种进行鉴定。结果所有生理小种都属于种类2的2A致病群。进一步的检测正在进行,以明确澳大利亚是否也存在2V致病群的生理小种。一个澳大利亚2A致病群的生理小种被用来鉴定澳大利亚双低芥菜型油菜育种品系的抗性。这些育种品系同时在加拿大利用加拿大的2A与2V致病型生理小种进行抗病性筛选。利用澳大利亚和加拿大的2A致病群的生理小种得出的油菜品种抗病性等级具有显著的相关性（Pearson’s相关系数为0.87）,有些双低芥菜型育种品系还表现出对2A致病型生理小种的抗性。然而,没有一个澳大利亚油菜育种品系显示出了对加拿大2V致病型的抗性。尽管在澳大利亚至今还没有鉴定出2v致病型生理小种,但将对2V致病型的抗性转入双的芥菜型油菜的工作正在进行,以期在未来能够审定释放抗2V致病型的双低芥菜型油菜品种。

关键词： Indian mustard white rust pathogenic variability resistance

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