Molecular mapping of the major resistance quantitative trait locus qHS2.09 with simple sequence repeat and single nucleotide polymorphism markers in maize.

abstract：:Downy mildew of grape caused by Plasmopara viticola is a global pathogen of economic importance to commercial viticulture. In contrast to populations in the northern hemisphere, few studies have investigated the population biology, genetic diversity, and origin of the pathogen in Australian production systems. DNA was...

journal_title：Phytopathology

authors： Taylor AS,Knaus BJ,Grünwald NJ,Burgess T

更新日期：2019-11-01 00:00:00

abstract：:Yellows diseases, caused by phytopathogenic bacteria of the genus Phytoplasma, are a major threat to grapevines worldwide. Because conventional applications against this pathogen are inefficient and disease management is highly challenging, the use of beneficial bacteria has been suggested as a biocontrol solution. A ...

journal_title：Phytopathology

authors： Iasur-Kruh L,Zahavi T,Barkai R,Freilich S,Zchori-Fein E,Naor V

更新日期：2018-03-01 00:00:00

abstract：:Beet powdery mildew incited by Erysiphe betae is a serious foliar fungal disease of worldwide distribution causing losses of up to 30%. In the present work, we searched for resistance in a germplasm collection of 184 genotypes of Beta vulgaris including fodder (51 genotypes), garden (60 genotypes), leaf (51 genotypes)...

journal_title：Phytopathology

authors： Fernández-Aparicio M,Prats E,Emeran AA,Rubiales D

更新日期：2009-04-01 00:00:00

abstract：:Previous research has shown that Botrytis cinerea isolates with resistance to multiple chemical classes of fungicides exist in eastern strawberry fields. In this study, the fungicide resistance profiles of 2,130 isolates from flowers of commercial strawberry fields located in multiple states was determined over four c...

journal_title：Phytopathology

authors： Hu MJ,Cox KD,Schnabel G

更新日期：2016-12-01 00:00:00

abstract：:Reniform nematode (RN) is an important pest in cotton production. Knowledge of the distribution patterns of RN is essential for selecting sampling strategies and for site-specific management. A 3-year study was conducted in two fields in South Carolina with the purpose of characterizing the distribution of RN using a ...

journal_title：Phytopathology

authors： Holguin CM,Gerard P,Mueller JD,Khalilian A,Agudelo P

更新日期：2015-05-01 00:00:00

abstract：:ABSTRACT Naturally established lowbush blueberry clones in four fields were evaluated for the incidence of leaf and flower blight, proportion of mummy berries, and yield reductions caused by Monilinia vacciniicorymbosi. The relationship between the phenology of flower and leaf bud development and susceptibility also w...

journal_title：Phytopathology

authors： Penman LN,Annis SL

更新日期：2005-10-01 00:00:00

abstract：:Stem nematode (Ditylenchus destructor) is one of most serious diseases that limit the productivity and quality of sweet potato (Ipomoea batatas), a root crop with worldwide importance for food security and nutrition improvement. Hence, there is a global demand for developing sweet potato varieties that are resistant t...

journal_title：Phytopathology

authors： Fan W,Wei Z,Zhang M,Ma P,Liu G,Zheng J,Guo X,Zhang P

更新日期：2015-11-01 00:00:00

abstract：:Wheat powdery mildew is a disease of global importance that occurs across a wide geographic area in the United States. A virulence survey of Blumeria graminis f. sp. tritici, the causal agent, was conducted by sampling 36 wheat fields in 15 U.S. states in the years 2013 and 2014. Using a hierarchical sampling protocol...

journal_title：Phytopathology

authors： Cowger C,Mehra L,Arellano C,Meyers E,Murphy JP

更新日期：2018-03-01 00:00:00

abstract：:Previous works indicated a considerable variation in the pathogenicity, virulence, and host range of Oidium neolycopersici isolates causing tomato powdery mildew epidemics in many parts of the world. In this study, rDNA internal transcribed spacer (ITS) sequences, and amplified fragment length polymorphism (AFLP) patt...

journal_title：Phytopathology

authors： Jankovics T,Bai Y,Kovács GM,Bardin M,Nicot PC,Toyoda H,Matsuda Y,Niks RE,Kiss L

更新日期：2008-05-01 00:00:00

abstract：:ABSTRACT Colletotrichum gloeosporioides forms a specialized infection structure, an appressorium, for host infection. Contacting hard surface induces appressorium formation in C. gloeosporioides, whereas hydrophobicity of the contact surface does not affect this infection-related differentiation. To determine if the c...

journal_title：Phytopathology

authors： Uhm KH,Ahn IP,Kim S,Lee YH

更新日期：2003-01-01 00:00:00

abstract：:Acidovorax avenae subsp. citrulli, causal agent of bacterial fruit blotch, has caused considerable damage to the watermelon and melon industry in China and the United States. Understanding the emergence and spread of this pathogen is important for controlling the disease. To build a fingerprinting database for reliabl...

journal_title：Phytopathology

authors： Feng J,Schuenzel EL,Li J,Schaad NW

更新日期：2009-08-01 00:00:00

abstract：:ABSTRACT Plasmopara viticola populations collected from three islands in the Ionian Sea-an arm of the Mediterranean Sea to the west of Greece-were analyzed with microsatellite molecular markers in order to investigate the pathogen population structure. Downy mildew populations from mainland regions previously studied ...

journal_title：Phytopathology

authors： Rumbou A,Gessler C

更新日期：2006-05-01 00:00:00

abstract：:ABSTRACT Pear blossoms were sampled during various stages of bloom in 1991 and 1992 from orchards at Cashmere, WA, and Corvallis and Medford, OR, for epiphytic populations of culturable bacteria. On stigmatic surfaces, bacteria were isolated from 2 to 32% of blossoms prior to petal expansion and from 47 to 94% of blos...

journal_title：Phytopathology

authors： Stockwell VO,McLaughlin RJ,Henkels MD,Loper JE,Sugar D,Roberts RG

更新日期：1999-12-01 00:00:00

abstract：:ABSTRACT Long-distance dispersal of spores generally presents anisotropy. This anisotropy can appear in the mean number of spores deposited along a given direction (anisotropy in density) and in the mean distance that a spore travels in a given direction (anisotropy in distance). Specific experiments together with a s...

journal_title：Phytopathology

authors： Soubeyrand S,Enjalbert J,Sanchez A,Sache I

更新日期：2007-10-01 00:00:00

abstract：:Vitis rupestris B38 is a North American grapevine resistant to the major pathogen of cultivated grapevines, Erysiphe necator. Sources of powdery mildew resistance, like V. rotundifolia, are widely used in grape breeding but are already threatened, even before commercialization, by isolates that can reproduce on Run1 a...

journal_title：Phytopathology

authors： Barba P,Cadle-Davidson L,Galarneau E,Reisch B

更新日期：2015-08-01 00:00:00

abstract：:Candidatus Liberibacter asiaticus (CLas) is the predominant causal agent of citrus huanglongbing (HLB). The pathogen population size in local tissues and the whole plant are critical for the development of disease symptoms via pathogenicity factors and causing metabolic burden to the host. However, the total populatio...

journal_title：Phytopathology

authors： N C Vasconcelos F,Li J,Pang Z,Vincent C,Wang N

更新日期：2020-10-22 00:00:00

abstract：:ABSTRACT An epidemiological model integrating three organizational scales of host plant populations (e.g., sites, leaves, and plants) is presented. At the lowest (site) scale, the model simulates the dynamics of vacant, latent, infectious, and removed sites. Three types of vacant sites are distinguished, depending on ...

journal_title：Phytopathology

authors： Willocquet L,Savary S

更新日期：2004-08-01 00:00:00

abstract：:ABSTRACT To follow the movement of Erwinia amylovora in plant tissue without dissection, this bacterium was marked with either the lux operon from Vibrio fischeri or the gfp gene from the jellyfish Aequorea victoria, both carried on multicopy plasmids and expressed under the control of the lac promoter from Escherichi...

journal_title：Phytopathology

authors： Bogs J,Bruchmüller I,Erbar C,Geider K

更新日期：1998-05-01 00:00:00

abstract：:Tomato is an economic crop worldwide. Many limiting factors reduce the production of tomato, with bacterial wilt caused by Ralstonia solanacearum being the most destructive disease. Our previous study showed that the disease resistance to bacterial soft rot is enhanced by Bacillus amyloliquefaciens strain PMB05. This ...

journal_title：Phytopathology

authors： Ho TH,Chuang CY,Zheng JL,Chen HH,Liang YS,Huang TP,Lin YH

更新日期：2020-12-01 00:00:00

abstract：:In this study, spatial analyses were conducted at three different scales to better understand the epidemiology of rice blast, a major rice disease caused by Magnaporthe oryzae. At the regional scale, across the major rice production regions in China, rice blast incidence was monitored on 101 dates at 193 stations from...

journal_title：Phytopathology

authors： Guo F,Chen X,Lu M,Yang L,Wang S,Wu BM

更新日期：2018-11-01 00:00:00

abstract：:ABSTRACT Tomato race 3 (T3) strains of Xanthomonas campestris pv. vesicatoria are antagonistic in vitro to tomato race 1 (T1) strains of the bacterium. All T1 strains and 11 strains of other X. campestris pathovars tested were inhibited by T3 strains. Sensitivity of tomato race 2 (T2) strains was variable. No strains ...

journal_title：Phytopathology

authors： Tudor-Nelson SM,Minsavage GV,Stall RE,Jones JB

更新日期：2003-11-01 00:00:00

abstract：:Rice blast is one of the most damaging diseases of rice worldwide. In the present study, we analyzed DNA sequence variation of avirulence (AVR) genes of AVR-Pita1 in field isolates of Magnaporthe oryzae in order to understand the effectiveness of the resistance gene Pi-ta in China. Genomic DNA of 366 isolates of M. or...

journal_title：Phytopathology

authors： Li J,Lu L,Jia Y,Li C

更新日期：2014-07-01 00:00:00

abstract：:The smut fungi form a large, diverse, and nonmonophyletic group of plant pathogens that have long served as both important pests of human agriculture and, also, as fertile organisms of scientific investigation. As modern techniques of molecular genetic analysis became available, many previously studied species that pr...

journal_title：Phytopathology

authors： Toh SS,Perlin MH

更新日期：2016-11-01 00:00:00

abstract：:Few molecular details of effectors of Heterodera avenae parasitism are known. We performed a high-throughput sequencing analysis of the H. avenae transcriptome at five developmental stages. A total of 82,549 unigenes were ultimately obtained, and 747 transcripts showed best hits to genes putatively encoding carbohydra...

journal_title：Phytopathology

authors： Cui JK,Peng H,Qiao F,Wang GF,Huang WK,Wu DQ,Peng D

更新日期：2018-02-01 00:00:00

abstract：:The fungus Rhizoctonia oryzae-sativae is an important pathogen that causes the aggregated sheath spot disease on rice. In this study, we investigated the genetic structure of rice-adapted populations of R. oryzae-sativae sampled from traditional rice-cropping areas from the Paraíba Valley, São Paulo, Brazil, and from ...

journal_title：Phytopathology

authors： Pereira DA,Ceresini PC,Castroagudín VL,Ramos-Molina LM,Chavarro-Mesa E,Negrisoli MM,Campos SN,Pegolo ME,Takada HM

更新日期：2017-01-01 00:00:00

abstract：:ABSTRACT The influence of varying environmental and cropping conditions including temperature, light, soil type, pathogen isolate and race, and cultivar of tomato on biological control of Fusarium wilt of tomato by isolates of nonpathogenic Fusarium oxysporum (CS-20 and CS-24) and F. solani (CS-1) was evaluated in gre...

journal_title：Phytopathology

authors： Larkin RP,Fravel DR

更新日期：2002-11-01 00:00:00

abstract：:ABSTRACT Meloidogyne chitwoodi and M. fallax are serious pests of potato, and both species have been recently designated as quarantine organisms in the European Community and in Canada. The sympatric and less damaging species M. hapla is often found associated with both of them under temperate climates. Here, we descr...

journal_title：Phytopathology

authors： Castagnone-Sereno P,Leroy F,Bongiovanni M,Zijlstra C,Abad P

更新日期：1999-05-01 00:00:00

abstract：:Previously, oscillations in beet seedling damping-off by Pythium ultimum, measured as area under the disease progress curve (AUDPC), were demonstrated after incorporation of organic materials into organic and conventional soils. These periodic fluctuations of P. ultimum infections were cross-correlated with oscillatio...

journal_title：Phytopathology

authors： He M,Tian G,Semenov AM,van Bruggen AH

更新日期：2012-04-01 00:00:00

abstract：:Deoxynivalenol (DON) concentrations in mature wheat grain are usually correlated with symptoms produced by Gibberella zeae infection. However, there have been numerous observations of unacceptably high DON in asymptomatic crops, which can lead to lower-than-expected milling reductions in DON. We conducted a field expe...

journal_title：Phytopathology

authors： Cowger C,Arrellano C

更新日期：2010-07-01 00:00:00

abstract：:ABSTRACT Recently, the gene-for-gene host-parasite coevolution model of Leonard was extended by incorporating two kinds of perturbations. The first kind was the natural perturbations that include those caused by pathogen migration between the two subpopulations of the host, forward and backward mutations in the host o...

journal_title：Phytopathology

authors： Sun P,Yang XB

更新日期：1999-09-01 00:00:00