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An Integrated QTL Map of fungal disease Resistance in Soybean (Glycine max L. Merr):A Method of Meta-Analysis for Mining R Genes

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Agricultural Sciences in China 2010年第2期9卷 223-232页

作者： WANG Jia-lin LIU Chun-yan WANG Jing QI Zhao-ming LI Hui HU Guo-hua CHEN Qing-shan College of Agriculture Northeast Agricultural University Harbin 150030 P.R.China Land Reclamation Research ＆ Breeding Centre of Heilongjiang Harbin 150090 P.R.China The National Research Center of Soybean Engineering and Technology Harbin 150050 P.R.China College of Science Northeast Agricultural University Harbin 150030 P.R.China

diseases caused by fungal pathogens account for approximately 50% of all soybean disease losses around the world. Conflicting results of fungal disease resistance QTLs from different populations often occurred. The objectives of this study were to：（i） evaluate evidence for reported fungal disease resistance QTLs associations in soybean and （ii） extract relatively reliable and useful information from the ＂real＂ QTLs and mine putative genes in soybean. An integrated map of fungal disease resistance QTLs in soybean was established with soymap 2 published in 2004 as a reference map. QTLs of fungal disease resistance developed from each of separate populations in recent 10 years were integrated into a combinative map for gene cloning and marker assisted selection in soybean. 107 QTLs from different maps were integrated and projected to the reference map with the software BioMercator 2.1. A method of meta-analysis was used to narrow down the confidence interval, and 23 ＂real＂ QTLs and their corresponding markers were obtained from 12 linkage groups （LG）, respectively. Two published R genes were found in these ＂real＂ QTLs intervals. Sequences in the ＂real＂ QTLs intervals were predicted by GENSCAN, and these predicted genes were annotated in Goblet. 228 resistance gene analogs （RGAs） in 12 different terms were mined. The results will lay the foundation for a bioinformatics platform combining abundant QTLs, and offer the basis for marker assisted selection and gene cloning in soybean.

关键词： soybean fungal disease QTL meta-analysis resistance gene analogs

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Heterologous expression of the Haynaldia villosa pattern-recognition receptor CERK1-V in wheat increases resistance to three fungal diseases

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The Crop Journal 2022年第6期10卷 1733-1745页

作者： Anqi Fan Luyang Wei Xu Zhang Jia Liua Li Sun Jin Xiao Yajia Wang Haiyan Wang Jian Hua Ravi P.Singh Zongkuan Wang Xiue Wang State Key Lab of Crop Genetics and Germplasm Enhancement Cytogenetics InstituteNanjing Agricultural University/JCIC-MCPNanjing 210095JiangsuChina Department of Plant Biology Cornell UniversityIthacaNY 14853USA International Maize and Wheat Improvement Center(CIMMYT) El BatanTexcoco 56237Estado de MexicoMexico

Wheat production is under continuous threat by various fungal *** of multipledisease resistance genes may lead to effective disease control via the development of cultivars with broad-spectrum *** Lysin-motif(LysM)-type pattern-recognition receptors,which elicit innate immunity by recognizing fungal pathogen associated molecular patterns such as chitin,are potential candidates for such *** this study,we cloned a LysM receptor-like kinase gene,CERK1-V,from the diploid wheat relative Haynaldia ***1-V expression was induced by chitin and Blumeria graminis ***,the causal agent of wheat powdery *** overexpression of CERK1-V in wheat inhibited the development of three fungal pathogens,thereby increased resistance to powdery mildew,yellow rust,and Fusarium head ***1-V physically interacted with the wheat Lys M protein Ta CEBi ***1-V/Ta CEBi Ps interaction promoted chitin recognition and activated chitin signal transduction in *** plants with excessively high CERK1-V expression showed high resistance but abnormal plant growth,whereas plants with moderate expression level showed adequate resistance level with no marked impairment of plant *** transgenic lines,RNA-seq showed that gene expression involved in plant innate immunity was *** of genes involved in photosynthesis,ER stress and multiple phytohormone pathways was also *** expression of CERK1-V in wheat can confer disease resistance without compromising growth or defense fitness.

关键词： Wheat fungal disease LysM PRR Haynaldia villosa CERK1-V

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Preliminary Investigation on the Main fungal diseases of Sugarcane in Guangxi Province of China

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Plant diseases and Pests 2013年第1期4卷 28-32页

作者： Wei Jinju Deng Zhanyun Huang Chenghua Huang Weihua Yan Meixin Liu Haibin Tang Hongqin Sugarcane Research Center Chinese Academy of Agricultural Sciences/Sugarcane Research Institute Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory for Sugarcane Biotechnology and Genetic Improvement Ministry of Agriculture

[ Objective ] The purpose was to understand species and occurrence status of major fugal diseases in sugarcane cultivation areas of Guangxi in China, so as to provide scientific references for integrated control against sugarcane diseases. [ Method] Species and occurrence degrees of major fugal diseases in sugarcane cultivation areas of Guangxi were investigated through randomized surveys, farmer interviews, literature references and location investigations from 2009 to 2011. diseased sugarcane samples were collected and their species were identified through pathogen isolated culture and other relevant methods. [ Result] Thirteen spe- cies of fungal diseases were identified in the survey, including pineapple disease [ Thielaviopsis paradoxa （ de Seynes ） V. Hohnel ], smut （ Ustilago scitaminea Sydow）, top rot disease （Fusarium moniliforme Sheldon）, rust （Puccinia melanocephala H. ＆ P. Syd. ）, leaf scald disease （Stagonospora sacchari Lo et Ling）, red rot disease （Colletotrichumfalcatum Went）, zonate spot disease （Phyllosticta saccharicola P. Henn. ）, leaf red spot disease [ Pellicularia sasakii （Shirai） Ito], white rash disease （Elsinoe sacchari L. ）, eye spot [Helminthosporium sacchari （Breda de Haan） Butler], yellow spot [Mycovellosiella koepkei （kruger） Deighton], brown stripe [Bipolaris stenospilum （Drechs.） Shoem. ] and brown spot （Cercospora longipes Butler）. Smut, rust, top rot, and pineapple disease were the most rampantly detrimental to quality and yield of sugarcane. [ Conclusion] Smut is the most serious sugarcane disease; it is urgent to breed sugarcane varieties with high resistance and excellent agronomic characters to replace current sugarcane varieties susceptible to diseases.

关键词： Sugarcane fungal disease Symptom Guangxi

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TiO_2 photocatalytic antifungal technique for crops diseases control

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Journal of Environmental Sciences 2006年第2期18卷 397-401页

作者： LU Jian-wei LI Fang-bai GUO Ting LIN Lan-wen HOU Mei-fang LIU Tong-xu Faculty of Resource and Environment Center China Agricultural University Wuhan 430070 China Guangdong Key Laboratory of Agricultural Environment Pollution Integrated Control Guangdong Institute of Eco-Environment and Soil Sciences Guangzhou 510650 China South China Institute of Botany Chinese Academy of Sciences Guangzhou 510650 China

TiO2 and 1% Ce^3＋-TiO2 prepared by hydrothermal method were characterized by means of XRD and UV-visible diffusive reflectance spectra（DRS）. The results of DRS analysis indicated that the 1% Ce^3＋-TiO2 catalyst had significant optical absorption in the visible region between 400-450 nm because electrons could be excited from the valence band of TiO2 or cerium oxides to Ce 4f level. To investigate the photocatalytic activity of different catalysts for crop fungal disease control, a series of Quine tests were carried out for cucumber powdery mildew and litchi downy blight control in home-made photocatalytic reactor. The results showed that TiO2 photocatalysis technique should be effective to inhibit the growth of fungal diseases to some extent and P-25 had a higher activity for antifungal control than home-made TiO2 catalysts. TiO2-A prepared with Ti（SO4）2 is more active to contro 1 antifungal disease than TiO2-B prepared with TiOSO4 as precursor because the crystalline of TiO2-A was higher than that of TiO2-B. The antifungal index litchi downy blight control was greatly enhanced by doping 1% cerium ion. The antifungal index of 1.0%Ce3^＋-TiO2 was（47.0 ± 4.7）%, （82.2 ± 3.5）%, （100 ±0.0）% under indoor weaker light, solar light and black light, respectively. The results of field experiments showed that the antifungal index of 1.0%Ce^3＋-TiO2 was more than that of P-25. The antifungal index of 1.0%Ce^3＋-TiO2 was （81.7 ± 6.5）%, （67.5 ±4.7）%, （38.6±1.9）% for litchi downy blight, maize southern leaf spot, and rice blast, respectively. It was concluded that TiO2 photocatalysis technique should be an effective way for litchi fungal disease control in practice.

关键词： titanium dioxide photocatalytic fungal disease solar light litchi downy blight

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Bacillus amyloliquefaciens Strain W19 can Promote Growth and Yield and Suppress Fusarium Wilt in Banana Under Greenhouse and Field Conditions

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Pedosphere 2016年第5期26卷 733-744页

作者： WANG Beibei SHEN Zongzhuan ZHANG Fengge Waseem RAZA YUAN Jun HUANG Rong RUAN Yunze LI Rong SHEN Qirong National Engineering Research Center for Organic-Based Fertilizers Jiangsu Key Lab and Engineering Center for Solid Organics Waste Utilization Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization Nanjing Agricultural University Hainan Key Laboratory for Sustainable Utilization of Tropical Bio-Resources College of Agriculture Hainan University Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River Ministry of Agriculture Nanjing Agricultural University

Plant growth-promoting rhizobacteria （PGPR） are considered to be the most promising agents for cash crop production via increasing crop yields and decreasing disease occurrence. The Bacillus amyloliquefaciens strain W19 can produce secondary metabolites （iturin and bacillomycin D） effectively against Fusarium oxysporum f. sp. cubense （FOC）. In this study, the ability of a bio-organic fertilizer （BIO） containing strain W19 to promote plant growth and suppress the Fusarium wilt of banana was evaluated in both pot and field experiments. The results showed that application of BIO significantly promoted the growth and fruit yield of banana while suppressing the banana Fusariurn wilt disease. To further determine the beneficial mechanisms of the strain, the colonization of green fluorescent protein-tagged strain W19 on banana roots was observed using confocal laser scanning microscopy and scanning electron microscopy. The effect of banana root exudates on the formation of biofilm of strain W19 indicated that the banana root exudates may enhance colonization. In addition, the strain W19 was able to produce indole-3-acetic acid （IAA）, a plant growth-promoting hormone. The results of these experiments revealed that the application of strain W19-enriched BIO improved the banana root colonization of strain W19 and growth of banana and suppressed the Fusarium wilt. The PGPR strain W19 can be a useful biocontrol agent for the production of banana under field conditions.

关键词： biocontrol bio-organic fertilizer colonization crop yield fungal disease indole-3-acetic acid plant growth-promoting rhizobacteria (PGPR) root exudates

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Suppression of Fusarium Wilt of Banana with Application of Bio-Organic Fertilizers

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Pedosphere 2014年第5期24卷 613-624页

作者： ZHANG Nan HE Xin ZHANG Juan W.RAZA YANG Xing-Ming RUAN Yun-Ze SHEN Qi-Rong HUANG Qi-Wei National Engineering Research Center for Organic-Based Fertilizers Nanjing Agricultural University Shandong Product Quality Inspection Research Institute College of Agronomy Hainan University

Fusarium wilt is one of the most serious diseases of banana plants caused by soil-borne pathogen Fusarium oxysporum ***. cubense(FOC). In this study a pot experiment was conducted to evaluate the effects of different bio-organic fertilizers(BIOs) on Fusarium wilt of banana, including the investigations of disease incidence, chitinase and β-1,3-glucanase activities of banana plants, and FOC populations as well as soil rhizosphere microbial community. Five fertilization treatments were considered, including chemical fertilizer containing the same N, P and K concentrations as the BIO(control), and matured compost mixed with antagonists Paenibacillus polymyxa SQR-21 and Trichoderma harzianum T37(BIO1), Bacillus amyloliquefaciens N6(BIO2), Bacillus subtilis N11(BIO3), and the combination of N6 and N11(BIO4). The results indicated that the application of BIOs significantly decreased the incidence rate of Fusarium wilt by up to 80% compared with the control. BIOs also significantly promoted plant growth, and increased chitinase andβ-1,3-glucanase activities by 55%–65% and 17.3%–120.1%, respectively, in the banana roots. The population of FOC in the rhizosphere soil was decreased significantly to about 104 colony forming units g-1with treatment of BIOs. Serial dilution plating and denaturing gradient gel electrophoresis analysis revealed that the application of BIOs increased the densities of bacteria and actinomycetes but decreased the number of fungi in the rhizosphere soil. In general, the application of BIOs revealed a great potential for the control of Fusarium wilt disease of banana plants.

关键词： biocontrol denaturing gradient gel electrophoresis fungal disease manure compost

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Investigation and Identification of fungal diseases of Kiwifruit in Qiandongnan Prefecture

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Plant diseases and Pests 2023年第1期14卷 1-5页

作者： Guohui ZHANG Huanxian GU Xiangyang LI Shengli SI Wenhua ZHANG School of Life and Health Science Kaili UniversityKaili 556011China Institute of Crop Protection Guizhou UniversityGuiyang 550025China 不详

[Objectives]The paper was to investigate and identify the fungal diseases of wild and red heart kiwifruit in Qiandongnan Prefecture.[Methods]The pathogenic fungi were isolated from diseased leaves and fruits of wild and red heart kiwifruit by tissue separation *** sequencing was carried out by using the sequence analysis of ribosomal r DNA-ITS region,and molecular evolutionary trees were built by using MEGA 4.0 ***,the pathogenic fungi were classified and identified by combining morphological observation.[Results]The main fungal diseases were anthracnose caused by Colletotrichum gloeosporioides on wild kiwifruit,fruit anthracnose caused by *** on red heart kiwifruit,leaf soft rot caused by Fusarium incarnatum on red heart kiwifruit,and brown spot caused by Alternaria alternata on red heart kiwifruit.[Conclusions]The study may provide some theoretical basis for the control of kiwifruit diseases in Qiandongnan Prefecture.

关键词： Wild kiwifruit Red heart kiwifruit fungal disease Pathogen Identification Qiandongnan Prefecture

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Chromosome-scale assembly reveals asymmetric paleo-subgenome evolution and targets for the acceleration of fungal resistance breeding in the nut crop, pecan

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Plant Communications 2021年第6期2卷 96-110页

作者： Lihong Xiao Mengjun Yu Ying Zhang Jie Hu Rui Zhang Jianhua Wang Haobing Guo He Zhang Xinyu Guo Tianquan Deng Saibin Lv Xuan Li Jianqin Huang Guangyi Fan State Key Laboratory of Subtropical Silviculture Zhejiang A&F UniversityNo.666 Wusu St.Lin’an DistrictHangzhou 311300China BGI-Qingdao BGI-ShenzhenNo.2 Hengyunshan Rd.Huangdao DistrictQingdao 266555China BGI Genomics BGI-ShenzhenShenzhen 518083China

Pecan(Carya illinoinensis)is a tree nut crop of worldwide economic importance that is rich in healthpromoting ***,pecan production and nut quality are greatly challenged by environmental stresses such as the outbreak of severe fungal ***,we report a high-quality,chromosome-scale genome assembly of the controlled-cross pecan cultivar‘Pawnee’constructed by integrating Nanopore sequencing and Hi-C *** and evolutionary analyses reveal two whole-genome duplication(WGD)events and two paleo-subgenomes in pecan and *** estimates suggest that the recent WGD event and considerable genome rearrangements in pecan and walnut account for expansions in genome size and chromosome number after the divergence from *** two paleo-subgenomes differ in size and protein-coding gene *** exhibit uneven ancient gene loss,asymmetrical distribution of transposable elements(especially LTR/Copia and LTR/Gypsy),and expansions in transcription factor families(such as the extreme pecan-specific expansion in the far-red impaired response 1 family),which are likely to reflect the long evolutionary history of species in the Juglandaceae.A whole-genome scan of resequencing data from 86 pecan scab-associated core accessions identified 47 chromosome regions containing 185 putative candidate *** changes were detected in the expression of candidate genes associated with the chitin response pathway under chitin treatment in the scab-resistant and scabsusceptible cultivars‘Excell’and‘Pawnee’.These findings enable us to identify key genes that may be important susceptibility factors for fungal diseases in *** high-quality sequences are valuable resources for pecan breeders and will provide a foundation for the production and quality improvement of tree nut crops.

关键词： pecan genome assembly paleo-subgenome pecan scab fungal disease population genetics

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Blastomycosis in China： a case report and literature review

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Chinese Medical Journal 2011年第24期124卷 4368-4371页

作者： ZHAO Tie-mei GAO Jie SHE Dan-yang CHEN Liang-an Department of Respiratory diseases Chinese People＇s Liberation Army General Hospital Beijing 100853 China Department of Pathology Chinese People＇s Liberation Army General Hospital Beijing 100853 China

Blastomycosis is a fungal disease that is endemic in parts of North America. It is very rare in China and also commonly misdiagnosed, often as cancer or other infectious diseases. The clinical profile of a case of disseminated blastomycosis with pulmonary changes and skin ulcers was described. He had been misdiagnosed with tuberculosis, after adequate therapy with a lipid formulation of amphotericin B, followed by itraconazole, the lung and skin lesions improved. Then the five cases reported in China and literatures were reviewed. The aim of this report was to improve the knowledge regarding blastomycosis for physicians in China to avoid delaying adequate therapy.

关键词： blastomycosis Blastomyces dermatitidis fungal disease itraconazole

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First Report on Rhizome Rot disease of Curcuma longa Caused by Fusarium solani in Bangladesh

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American Journal of Plant Sciences 2022年第4期13卷 506-516页

作者： Md. Sabbir Ahmmed Fatema Akter Nisha Nuhu Alam Department of Botany Faculty of Biological Sciences Jahangirnagar University Dhaka Bangladesh

Turmeric (Curcuma longa L.) is a valuable medicinal plant as well as spice crop in Bangladesh. The rhizome rot disease is a severe danger to turmeric cultivation. The current study sought to identify the fungal pathogen linked to turmeric rhizome rot disease. Rhizome of turmeric with distinct rotted symptoms was collected from the experimental site of the Botanical Garden, Jahangirnagar University, Bangladesh. The sample was screened to isolate the causative fungal pathogen through the tissue planting technique. Macro and micro-morphological characterization based on colony appearance, mycelial and conidial characteristics primarily identified the fungus as Fusarium sp. The ITS sequence of rDNA of the fungus exhibited 99 to 100 percent similarity with the other F. solani species formerly deposited in the NCBI database which confirmed the fungal identity as F. solani. An in vitro pathogenicity test validated the pathogenic nature of the fungus. Growth behaviors of the fungus were evaluated on different solid culture media viz., Potato dextrose agar, Potato sucrose agar, Sabouraud dextrose agar and Hansen’s agar;temperature conditions (10?C, 15?C, 20?C, 25?C, 30?C and 35?C) and pH levels (pH 4, pH 5, pH 6, pH 7 and pH 8). Maximum mycelial growth was obtained on PSA medium at 30?C temperature and pH 7 conditions. Current findings also conclude that F. solani favors a wide range of temperature and pH levels. To the best of our search, the present investigation revealed the relationship of F. solani with the rhizome rot disease of turmeric for the first time in Bangladesh.

关键词： Turmeric fungal disease Molecular Identification Culture Media Temperature pH

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