Multiplex Polymerase Chain Reaction Identification of Single Individuals of the Longidorid Nematodes Xiphinema index, X. diversicaudatum, X. vuittenezi, and X. italiae Using Specific Primers from Ribosomal Genes.

abstract：:ABSTRACT Xanthomonas axonopodis pv. glycines is the causal agent of bacterial pustule disease of soybeans. A transposon insertional mutant (KU-P-M670) of X. axonopodis pv. glycines derived from wild-type strain KU-P-34017 lost the ability to induce the hypersensitive response (HR) on tobacco and pepper but retained it...

journal_title：Phytopathology

authors： Kaewnum S,Prathuangwong S,Burr TJ

更新日期：2006-11-01 00:00:00

abstract：:The online community resource Phytophthora database (PD) was developed to support accurate and rapid identification of Phytophthora and to help characterize and catalog the diversity and evolutionary relationships within the genus. Since its release in 2008, the sequence database has grown to cover 1 to 12 loci for ≈2...

journal_title：Phytopathology

authors： Park B,Martin F,Geiser DM,Kim HS,Mansfield MA,Nikolaeva E,Park SY,Coffey MD,Russo J,Kim SH,Balci Y,Abad G,Burgess T,Grünwald NJ,Cheong K,Choi J,Lee YH,Kang S

更新日期：2013-12-01 00:00:00

abstract：:ABSTRACT A major leaf rust (Puccinia triticina) resistance quantitative trait locus (QTL) (QLrP.sfr-7DS) previously has been described on chromosome 7DS in the winter wheat (Triticum aestivum) cv. Forno. It was detected in a population of single-seed descent (SSD) lines derived from the cross Arina x Forno. QLrP.sfr-7...

journal_title：Phytopathology

authors： Schnurbusch T,Bossolini E,Messmer M,Keller B

更新日期：2004-10-01 00:00:00

abstract：:ABSTRACT Fusarium verticillioides, F. proliferatum, and Aspergillus flavus cause ear rots of maize and contaminate the grain with mycotoxins (fumonisin or aflatoxin). The objective of this study was to investigate the relationships between resistance to Fusarium and Aspergillus ear rots and fumonisin and aflatoxin con...

journal_title：Phytopathology

authors： Robertson-Hoyt LA,Betrán J,Payne GA,White DG,Isakeit T,Maragos CM,Molnár TL,Holland JB

更新日期：2007-03-01 00:00:00

abstract：:Exploring the genetic diversity and evolutionary history of plant viruses is critical to understanding their ecology and epidemiology. In this study, maximum-likelihood and population genetics-based methods were used to investigate the population structure, genetic diversity, and sources of genetic variation in field ...

journal_title：Phytopathology

authors： Kaye AC,Moyer JW,Parks EJ,Carbone I,Cubeta MA

更新日期：2011-01-01 00:00:00

abstract：:The genetic variability of a Cucurbit aphid-borne yellows virus (CABYV) (genus Polerovirus, family Luteoviridae) population was evaluated by determining the nucleotide sequences of two genomic regions of CABYV isolates collected in open-field melon and squash crops during three consecutive years in Murcia (southeaster...

journal_title：Phytopathology

authors： Kassem MA,Juarez M,Gómez P,Mengual CM,Sempere RN,Plaza M,Elena SF,Moreno A,Fereres A,Aranda MA

更新日期：2013-11-01 00:00:00

abstract：:Bean common mosaic virus (BCMV) exists as a complex of strains classified by reactions to resistance genes found in common bean (Phaseolus vulgaris); seven BCMV pathotypes have been distinguished thus far, numbered I to VII. Virus genetic determinants involved in pathogenicity interactions with resistance genes have n...

journal_title：Phytopathology

authors： Feng X,Poplawsky AR,Nikolaeva OV,Myers JR,Karasev AV

更新日期：2014-07-01 00:00:00

abstract：:A study was designed to screen individual strains of plant growth-promoting rhizobacteria (PGPR) for broad-spectrum disease suppression in vitro and in planta. In a preliminary screen, 28 of 196 strains inhibited eight different tested pathogens in vitro. In a secondary screen, these 28 strains showed broad spectrum a...

journal_title：Phytopathology

authors： Liu K,Newman M,McInroy JA,Hu CH,Kloepper JW

更新日期：2017-08-01 00:00:00

abstract：:ABSTRACT One of the major concerns with Fusarium head blight (FHB) of barley is the potential health risks to livestock and humans through the accumulation of the mycotoxin deoxynivalenol (DON) in infected grain. To define the role of the host in DON accumulation during the early stages of disease development, we cond...

journal_title：Phytopathology

authors： Smith KP,Evans CK,Dill-Macky R,Gustus C,Xie W,Dong Y

更新日期：2004-07-01 00:00:00

abstract：:ABSTRACT Sweet pepper-Leveillula taurica microclimate relations were studied under controlled conditions and in commercial greenhouses. Conidial germination occurred at 10 to 37 degrees C and was optimal at 20 degrees C. Conidial viability declined as temperatures increased to 40 degrees C for 6 h. Leaf colonization w...

journal_title：Phytopathology

authors： Elad Y,Messika Y,Brand M,David DR,Sztejnberg A

更新日期：2007-07-01 00:00:00

abstract：:ABSTRACT Locations of silicon accumulation in rice leaves and its possible association with resistance to rice blast were investigated by electron microscopy and X-ray microanalysis. A blast-susceptible cultivar, Jinmi, and a partially resistant cultivar, Hwaseong, were grown under a hydroponic culture system with mod...

journal_title：Phytopathology

authors： Kim SG,Kim KW,Park EW,Choi D

更新日期：2002-10-01 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：:ABSTRACT The influence exerted by Pythium group F (a minor pathogen ubiquitous in soilless cultures) and P. uncinulatum (a nonpathogenic species) colonization on tomato roots was investigated. In both interactions, infected roots did not exhibit obvious symptoms; however, major physiological changes occurred within th...

journal_title：Phytopathology

authors： Rey P,Benhamou N,Tirilly Y

更新日期：1998-03-01 00:00:00

abstract：:For an ordinary least-squares regression model, the coefficient of determination (R2) describes the proportion (or percentage) of variance of the response variable explained by the model, and is a widely accepted summary measure of predictive power. A number of R2-analogues are available as summary measures of predict...

journal_title：Phytopathology

authors： Hughes G,Choudhury RA,McRoberts N

更新日期：2019-05-01 00:00:00

abstract：:Avirulence (AVR) genes in Magnaporthe oryzae, the fungal pathogen that causes the devastating rice blast disease, have been documented to be major targets subject to mutations to avoid recognition by resistance (R) genes. In this study, an AVR-gene-based diagnosis tool for determining the virulence spectrum of a rice ...

journal_title：Phytopathology

authors： Selisana SM,Yanoria MJ,Quime B,Chaipanya C,Lu G,Opulencia R,Wang GL,Mitchell T,Correll J,Talbot NJ,Leung H,Zhou B

更新日期：2017-06-01 00:00:00

abstract：:We studied spore dispersal by Dothistroma septosporum, causal agent of a serious outbreak of red band needle blight in lodgepole pine plantations in northwest British Columbia. Spore abundance was assessed at different distances and heights from inoculum sources and microclimatic factors were recorded during two conse...

journal_title：Phytopathology

authors： Boateng K,Lewis KJ

更新日期：2015-01-01 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 Strains of Xylella fastidiosa, isolated from sweet orange trees (Citrus sinensis) and coffee trees (Coffea arabica) with symptoms of citrus variegated chlorosis and Requeima do Café, respectively, were indistinguishable based on repetitive extragenic palindromic polymerase chain reaction (PCR) and enterobacte...

journal_title：Phytopathology

authors： Qin X,Miranda VS,Machado MA,Lemos EG,Hartung JS

更新日期：2001-06-01 00:00:00

abstract：:A collection of 565 isolates of Verticillium dahliae, recovered between 1992 and 1997 from 13 host plant species and soil at 47 sites in Israel, was tested for vegetative compatibility using nitrate-nonutilizing (nit) mutants. Three vegetative compatibility groups (VCGs) were found and identified as VCG2A (28 isolates...

journal_title：Phytopathology

authors： Korolev N,Katan J,Katan T

更新日期：2000-05-01 00:00:00

abstract：:Grapevine downy mildew (GDM) is a severe disease of grapevines. Because of the lack of reliable information about the dates of GDM symptom onset, many vine growers begin fungicide treatments early in the season. We evaluate the extent to which such preventive treatments are justified. Observational data for 266 untrea...

journal_title：Phytopathology

authors： Chen M,Brun F,Raynal M,Makowski D

更新日期：2019-05-01 00:00:00

abstract：:The defense-related gene LsGRP1 exhibits an increased level of expression in Lilium spp. after being infected by Botrytis elliptica, the fungal pathogen of lily leaf blight. In this study, the expression profile of the LsGRP1 protein (a plant class II glycine-rich protein) was characterized biochemically and its subce...

journal_title：Phytopathology

authors： Lin CH,Chen CY

更新日期：2014-10-01 00:00:00

abstract：:ABSTRACT A glycoprotein of 34 kDa (GP 34) was solubilized at acidic pH from the mycelium of Phytophthora parasitica var. nicotianae and was purified by ion exchange and gel permeation chromatography. Whole tobacco plants treated with GP 34 through their roots showed an enhanced lipoxygenase activity as well as hydroxy...

journal_title：Phytopathology

authors： Séjalon-Delmas N,Mateos FV,Bottin A,Rickauer M,Dargent R,Esquerré-Tugayé MT

更新日期：1997-09-01 00:00:00

abstract：:The major quantitative trait locus (QTL) qHS2.09 plays an important role in resistance to head smut during maize breeding and production. In this study, a near-isogenic line (NIL), L34, which harbors the major QTL qHS2.09 in bin 2.09, was developed using a resistant donor 'Mo17' in a susceptible genetic background 'Hu...

journal_title：Phytopathology

authors： Weng J,Liu X,Wang Z,Wang J,Zhang L,Hao Z,Xie C,Li M,Zhang D,Bai L,Liu C,Zhang S,Li X

更新日期：2012-07-01 00:00:00

abstract：:ABSTRACT In the rice blast fungus pathosystem, cerebroside, a compound categorized as a sphingolipid, was found in our previous study to be a non-racespecific elicitor, which elicits defense responses in rice. Here we describe that cerebroside C is produced in diverse strains of Fusarium oxysporum, a common soilborne ...

journal_title：Phytopathology

authors： Umemura K,Tanino S,Nagatsuka T,Koga J,Iwata M,Nagashima K,Amemiya Y

更新日期：2004-08-01 00:00:00

abstract：:A well-studied severe isolate of Citrus tristeza virus (CTV) known as SY568 has previously been shown to contain multiple variants of the virus which differ in their genetic and biological characters. Aphid transmission was used in an attempt to segregate some of these variants for further characterization. Resulting ...

journal_title：Phytopathology

authors： Velazquez-Monreal JJ,Mathews DM,Dodds JA

更新日期：2009-10-01 00:00:00

abstract：:ABSTRACT Culture filtrates of a pathogenic isolate (IT37) of Stemphylium vesicarium, causing brown spot of European pear, induced veinal necrosis only on pear leaves susceptible to the pathogen. Two host-specific toxins, SV-toxins I and II, were purified from culture filtrates of IT37 by successively using Amberlite X...

journal_title：Phytopathology

authors： Singh P,Bugiani R,Cavanni P,Nakajima H,Kodama M,Otani H,Kohmoto K

更新日期：1999-10-01 00:00:00

abstract：:ABSTRACT Our objective was to determine the value of corn (Zea mays) inbred Oh516 as a source of resistance to Aspergillus ear rot and aflatoxin accumulation in grain. Types and magnitudes of gene action associated with resistance were determined with generation means analysis. Molecular markers associated with resist...

journal_title：Phytopathology

authors： Busboom KN,White DG

更新日期：2004-10-01 00:00:00

abstract：:Squash leaf curl virus (SLCV) and Watermelon chlorotic stunt virus (WmCSV) are cucurbit-infecting bipartite begomoviruses. Both viruses are found in the eastern Mediterranean basin but the effects of dual infection of both viruses on melon (Cucumis melo L.) have not been described. 'Arava' melon plants were inoculated...

journal_title：Phytopathology

authors： Sufrin-Ringwald T,Lapidot M

更新日期：2011-02-01 00:00:00

abstract：:ABSTRACT Genetic structure of Phytophthora infestans, the causal agent of potato and tomato late blight, was analyzed spatially in a mixed potato and tomato production area in the Del Fuerte Valley, Sinaloa, Mexico. Isolates of P. infestans were characterized by mating type, allozyme analysis at the glucose-6-phosphat...

journal_title：Phytopathology

authors： Jaime-Garcia R,Orum TV,Felix-Gastelum R,Trinidad-Correa R,Vanetten HD,Nelson MR

更新日期：2001-12-01 00:00:00

abstract：:ABSTRACT Fusarium oxysporum f. sp. ciceris and the root-lesion nematode Pratylenchus thornei coinfect chickpeas in southern Spain. The influence of root infection by P. thornei on the reaction of Fusarium wilt-susceptible (CPS 1 and PV 61) and wilt-resistant (UC 27) chickpea cultivars to F. oxysporum f. sp. ciceris ra...

journal_title：Phytopathology

authors： Castillo P,Mora-Rodríguez MP,Navas-Cortés JA,Jiménez-Díaz RM

更新日期：1998-08-01 00:00:00