Purification, Elicitor Activity, and Cell Wall Localization of a Glycoprotein from Phytophthora parasitica var. nicotianae, a Fungal Pathogen of Tobacco.

abstract：:ABSTRACT Citrus bacterial canker disease has been introduced at least three times into Florida in the last 15 years and, despite federal and state quarantine and eradication efforts, continues to spread in Florida. Accurate, fast, and reliable detection of the causal agent is of great importance. However, citrus bacte...

journal_title：Phytopathology

authors： Mavrodieva V,Levy L,Gabriel DW

更新日期：2004-01-01 00:00:00

abstract：:Yellowing diseases of sugar beet can be caused by a range of strains classified as Beet mild yellowing virus (BMYV) or Beet western yellows virus (BWYV), both belonging to the genus Polerovirus of the family Luteoviridae. Host range, genomic, and serological studies have shown that isolates of these viruses can be gro...

journal_title：Phytopathology

authors： Hauser S,Stevens M,Mougel C,Smith HG,Fritsch C,Herrbach E,Lemaire O

更新日期：2000-05-01 00:00:00

abstract：:ABSTRACT Restriction fragment length polymorphisms (RFLPs) were used to characterize the genetic structures of three field populations of Phaeosphaeria nodorum from Texas, Oregon, and Switzerland. Data from seven nuclear RFLP loci were used to estimate gene diversity and genetic distances and to make indirect measures...

journal_title：Phytopathology

authors： Keller SM,McDermott JM,Pettway RE,Wolfe MS,McDonald BA

更新日期：1997-03-01 00:00:00

abstract：:ABSTRACT We determined that multiple and independent introductions of copper resistance genes have taken place for strains of Xanthomonas citri subsp. citri from Argentina and strains of X. alfalfae subsp. citrumelonis from Florida. This study compared the partial nucleotide sequences of principal copper resistance ge...

journal_title：Phytopathology

authors： Behlau F,Hong JC,Jones JB,Graham JH

更新日期：2013-05-01 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：:Despite being the first closterovirus documented in grapevines (Vitis sp.), the molecular biology of Grapevine leafroll-associated virus 1 (GLRaV-1, genus Ampelovirus, family Closteroviridae) is still in its infancy. In this study, the complete genome sequence of two GLRaV-1 isolates was determined to be 18,731 (isola...

journal_title：Phytopathology

authors： Donda BP,Jarugula S,Naidu RA

更新日期：2017-09-01 00:00:00

abstract：:The potential host range of mycoviruses is poorly understood because of the lack of suitable inoculation methods. Recently, successful transfection has been reported for somatically incompatible fungal isolates with purified virus particles of two mycoviruses, the partitivirus RnPV1-W8 (RnPV1) and the mycoreovirus RnM...

journal_title：Phytopathology

authors： Kanematsu S,Sasaki A,Onoue M,Oikawa Y,Ito T

更新日期：2010-09-01 00:00:00

abstract：:ABSTRACT Black dot of potato, caused by Colletotrichum coccodes, is a disease of growing economic importance, but the degree of genetic diversity and pathogenic differentiation among isolates is unknown. Using nitrate auxotrophic (Nit) mutants, we characterized vegetative compatibility groups (VCG) diversity for C. co...

journal_title：Phytopathology

authors： Nitzan N,Hazanovsky M,Tal M,Tsror Lahkim L

更新日期：2002-08-01 00:00:00

abstract：:ABSTRACT The prevalence of brown stem rot (caused by Phialophora gregata), Heterodera glycines, and Phytophthora sojae in the north central United States was investigated during the fall of 1995 and 1996. Soybean fields were randomly selected using an area-frame sampling design in collaboration with the National Agric...

journal_title：Phytopathology

authors： Workneh F,Tylka GL,Yang XB,Faghihi J,Ferris JM

更新日期：1999-03-01 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：:Forty-eight inbred lines of maize with varying levels of resistance to gray leaf spot (GLS) were artificially inoculated with Cercospora zeina and evaluated to characterize partial disease resistance in maize under field conditions from 2012 to 2014 across 12 environments in western Kenya. Eight measures of disease ep...

journal_title：Phytopathology

authors： Nyanapah JO,Ayiecho PO,Nyabundi JO,Otieno W,Ojiambo PS

更新日期：2020-10-01 00:00:00

abstract：:ABSTRACT In order to understand the molecular mechanisms underlying transmission of Spiroplasma citri by the leafhopper Circulifer haematoceps, we screened leafhopper proteins as putative S. citri-binding molecules using a spiroplasma overlay assay of protein blots (Far-western assay). Insect proteins were separated b...

journal_title：Phytopathology

authors： Killiny N,Castroviejo M,Saillard C

更新日期：2005-05-01 00:00:00

abstract：:ABSTRACT Greasy spot, caused by Mycosphaerella citri, produces a leaf spot disease affecting all citrus species in Florida and the Caribbean Basin. M. citri produces pseudothecia and ascospores, which are considered the principal source of inoculum, in decomposing leaves on the grove floor. In studies using a computer...

journal_title：Phytopathology

authors： Mondal SN,Gottwald TR,Timmer LW

更新日期：2003-08-01 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：:ABSTRACT Inoculation of bean hypocotyls with a nonpathogenic binucleate Rhizoctonia (BNR) species induced systemic resistance and protection of the roots and cotyledons to later challenge with the root rot pathogen Rhizoctonia solani or the anthracnose pathogen Colletotrichum lindemuthianum. Bean seedlings that were t...

journal_title：Phytopathology

authors： Xue L,Charest PM,Jabaji-Hare SH

更新日期：1998-04-01 00:00:00

abstract：:ABSTRACT Late leaf spot disease caused by Cercosporidium personatum is one of the most destructive foliar diseases of peanut (Arachis hypogaea) worldwide. The objective of this research was to identify resistance genes in response to leaf spot disease using microarray and real-time polymerase chain reaction (PCR). To ...

journal_title：Phytopathology

authors： Luo M,Dang P,Bausher MG,Holbrook CC,Lee RD,Lynch RE,Guo BZ

更新日期：2005-04-01 00:00:00

abstract：:ABSTRACT Mycosphaerella citri, the cause of citrus greasy spot, produces pseudothecia and ascospores in decomposing leaf litter on the grove floor. In laboratory studies, the effect of wetting and drying and temperature on the formation, maturation, and production of pseudothecia and ascospores was evaluated on mature...

journal_title：Phytopathology

authors： Mondal SN,Timmer LW

更新日期：2002-12-01 00:00:00

abstract：:The ability to develop fungicide resistance was assessed in Monilinia fructicola isolates with different fungicide sensitivity phenotypes by adapting mycelium and conidia to increasing concentrations of selective fungicides and UV mutagenesis. Results showed that adaptation to Quinone outside inhibitor (QoI) fungicide...

journal_title：Phytopathology

authors： Luo CX,Schnabel G

更新日期：2008-02-01 00:00:00

abstract：:Resistance to the eight races (3, 7, 19, 31, 81, 449, 453, and 1545) of the pathogenic fungus Colletotrichum lindemuthianum (anthracnose) was evaluated in F(3) families derived from the cross between the anthracnose differential bean cultivars Kaboon and Michelite. Molecular marker analyses were carried out in the F(2...

journal_title：Phytopathology

authors： Campa A,Giraldez R,Ferreira JJ

更新日期：2011-06-01 00:00:00

abstract：:Potato genotypes from a breeding population adapted to tropical highlands were analyzed for the stability of late blight resistance and also for marker-phenotype association. We harmonized the historical evaluation data, consisting of observations spanning 6 years from two field sites utilizing a resistance scale cons...

journal_title：Phytopathology

authors： Lindqvist-Kreuze H,Gastelo M,Perez W,Forbes GA,de Koeyer D,Bonierbale M

更新日期：2014-06-01 00:00:00

abstract：:ABSTRACT Perennial ryegrass (Lolium perenne) was inoculated with urediniospores of Puccinia graminis subsp. graminicola at four stages of reproductive tiller development. All developmental stages, from expansion of the penultimate leaf through anthesis, were equally susceptible to infection measured as number of pustu...

journal_title：Phytopathology

authors： Pfender WF

更新日期：2004-03-01 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 genetic basis of systemic resistance to bacterial blight disease (blight) of anthurium (Anthurium andraeanum) caused by Xanthomonas axonopodis pv. dieffenbachiae was investigated in progenies of 53 crosses involving 31 parent cultivars using segregation analysis. Inoculation of parents and progenies was achieved b...

journal_title：Phytopathology

authors： Elibox W,Umaharan P

更新日期：2008-04-01 00:00:00

abstract：:ABSTRACT The dominant gene Am from Lycopersicon hirsutum f. sp. glabratum PI134417 confers resistance to most strains of Alfalfa mosaic virus, including the recently identified necrotic strains. The phenotypic response includes a lack of symptom development following mechanical inoculation of leaves. To study the resi...

journal_title：Phytopathology

authors： Parrella G,Moretti A,Gognalons P,Lesage ML,Marchoux G,Gebre-Selassie K,Caranta C

更新日期：2004-04-01 00:00:00

abstract：:ABSTRACT Genetic resistance often fails because a resistance-breaking (RB) pathogen genotype increases in frequency. On the basis of an analysis of cellular plant pathogens, it was recently proposed that the evolutionary potential of a pathogen is a major determinant of the durability of resistance. We test this hypot...

journal_title：Phytopathology

authors： García-Arenal F,McDonald BA

更新日期：2003-08-01 00:00:00

abstract：:ABSTRACT The aggressiveness of strains of Xanthomonas axonopodis pv. citri on seven Citrus species, including Citrus sinensis (navel orange), C. paradisi (grapefruit), C. unshiu (Satsuma mandarin), C. junos (Yuzu), C. aurantifolia ('Mexican' lime), C. tachibana (Tachibana), and C. grandis (pummelo: 'Otachibana', 'Banp...

journal_title：Phytopathology

authors： Shiotani H,Ozaki K,Tsuyumu S

更新日期：2000-12-01 00:00:00

abstract：:Developing oat cultivars with partial resistance to crown rust would be beneficial and cost-effective for disease management. Two recombinant inbred-line populations were generated by crossing the susceptible cultivar Provena with two partially resistant sources, CDC Boyer and breeding line 94197A1-9-2-2-2-5. A third ...

journal_title：Phytopathology

authors： Babiker EM,Gordon TC,Jackson EW,Chao S,Harrison SA,Carson ML,Obert DE,Bonman JM

更新日期：2015-02-01 00:00:00

abstract：:Studies on infection processes and gene expression were done to determine differential responses of cultivars of Trifolium subterraneum resistant and susceptible to infection by races of Phytophthora clandestina. In the infection process study, one race was inoculated onto the roots of T. subterraneum cvs. Woogenellup...

journal_title：Phytopathology

authors： Ma X,Li H,Sivasithamparam K,Barbetti MJ

更新日期：2010-06-01 00:00:00

abstract：:Western X (WX) disease, caused by 'Candidatus Phytoplasma pruni', is a devastating disease of sweet cherry resulting in the production of small, bitter-flavored fruits that are unmarketable. Escalation of WX disease in Washington State prompted the development of a rapid detection assay based on recombinase polymerase...

journal_title：Phytopathology

authors： Villamor DEV,Eastwell KC

更新日期：2019-06-01 00:00:00

abstract：:ABSTRACT None of the chemical alternatives currently registered and available has the full spectrum of activity and versatility of methyl bromide as a pre-plant soil fumigant. Chloropicrin and 1,3-dichloropropene (Telone) can provide significant control of many plant pathogens in soil and growth stimulation in annual ...

journal_title：Phytopathology

authors： Duniway JM

更新日期：2002-12-01 00:00:00