Gentian mosaic virus: A New Species in the Genus Fabavirus.

abstract：:To support the search for alternative, non-chemical plant disease control strategies, we present a review of the pathogen-suppressive effects of biochar, a product derived from agricultural and other organic wastes, used as a soil amendment. A wide range of biochar effects contribute to the control of root or foliar f...

journal_title：Phytopathology

authors： Poveda J,Martínez Gómez Á,Fenoll C,Escobar C

更新日期：2021-02-02 00:00:00

abstract：:ABSTRACT Fifty-one isolates representing the four Botrytis spp. associated with onion neck rot were clustered by unweighted pair group method with arithmetic mean based on universal-primed polymerase chain reaction (UP-PCR) fingerprints. Bootstrap analysis of the consensus phenogram clearly demonstrated five strong cl...

journal_title：Phytopathology

authors： Nielsen K,Justesen AF,Jensen DF,Yohalem DS

更新日期：2001-06-01 00:00:00

abstract：:Venturia effusa (syn. Fusicladium effusum), causal agent of pecan scab, is the most prevalent pathogen of pecan (Carya illinoinensis), causing severe yield losses in the southeastern United States. V. effusa is currently known only by its asexual (conidial) stage. However, the degree and distribution of genetic divers...

journal_title：Phytopathology

authors： Young CA,Bock CH,Charlton ND,Mattupalli C,Krom N,Bowen JK,Templeton M,Plummer KM,Wood BW

更新日期：2018-07-01 00:00:00

abstract：:Effects of the root-knot nematode Meloidogyne incognita and the fungal pathogen Thielaviopsis basicola on cotton seedling growth and root morphology were evaluated in controlled environmental experiments. Four pathogen treatments, including noninfested soil, soil infested with M. incognita, soil infested with T. basic...

journal_title：Phytopathology

authors： Ma J,Jaraba J,Kirkpatrick TL,Rothrock CS

更新日期：2014-05-01 00:00:00

abstract：:ABSTRACT Septoria speckled leaf blotch (SSLB) caused by Septoria passerinii is a common disease in barley. SSLB resistance genes Rsp1, Rsp2, and Rsp3 have previously been identified in the United States Department of Agriculture National Small Grains collection accessions CIho 14300, CIho 4780, and CIho 10644, respect...

journal_title：Phytopathology

authors： Lee SH,Neate SM

更新日期：2007-02-01 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 An isometric virus ca. 25 nm in diameter with angular contour was isolated from onion plants showing yellow leaf striping and necrotic tips. The virus was mechanically transmitted onto 28 species of indicator plants belonging to five families, viz. Amaranthaceae, Chenopodiaceae, Cucurbitaceae, Leguminosae, an...

journal_title：Phytopathology

authors： Maliogka VI,Dovas CI,Lesemann DE,Winter S,Katis NI

更新日期：2006-06-01 00:00:00

abstract：:ABSTRACT Disease assessments and cytological investigations provided valuable information on the modes of action and efficacies of two prophylactic compounds, Milsana and benzothiadiazole (BTH), against powdery mildew development on long English cucumber. Milsana application significantly reduced disease incidence rel...

journal_title：Phytopathology

authors： Wurms K,Labbé C,Benhamou N,Bélanger RR

更新日期：1999-09-01 00:00:00

abstract：:As the causal agent of late blight on potato, Phytophthora infestans is one of the most destructive plant pathogens worldwide and widely known as the Irish potato famine pathogen. Understanding the genetic structure of P. infestans populations is important both for breeding and deployment of resistant varieties and fo...

journal_title：Phytopathology

authors： Tian Y,Yin J,Sun J,Ma H,Ma Y,Quan J,Shan W

更新日期：2015-06-01 00:00:00

abstract：:ABSTRACT We developed a rapid and miniaturized bioassay for screening large numbers of rhizosphere microorganisms for their ability to induce systemic resistance to bacterial leaf spot of radish caused by Xanthomonas campestris pv. armoraciae. In this bioassay, Pantoea agglomerans strain E278Ar controlled symptoms of ...

journal_title：Phytopathology

authors： Han DY,Coplin DL,Bauer WD,Hoitink HA

更新日期：2000-04-01 00:00:00

abstract：:The Fusarium oxysporum species complex (FOSC) is a widely distributed group of fungi that includes both pathogenic and nonpathogenic isolates. In a previous study, isolates within the FOSC collected primarily from soybean were assessed for the presence of 12 fungal effector genes. Although none of the assayed genes wa...

journal_title：Phytopathology

authors： Lanubile A,Ellis ML,Marocco A,Munkvold GP

更新日期：2016-11-01 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：:Potyviral helper component protease (HC-Pro), as a major determinant of symptom expression in susceptible plants, is a likely target candidate in the production of attenuated strains for cross-protection. In this study, single or double mutations of Lys (K) to Glu (E) in the Lys-Ile-Thr-Cys motif and Arg (R) to Ile (I...

journal_title：Phytopathology

authors： Tuo D,Zhou P,Zhao G,Yan P,Tan D,Li X,Shen W

更新日期：2020-01-01 00:00:00

abstract：:ABSTRACT One susceptible and two resistant cultivars of tomato were tested for differences in infection by Ralstonia solanacearum and for the subsequent multiplication, colonization, and production of the wilt-inducing virulence factor, exopolysaccharide I (EPS I). Bacterial ingress into the taproot was fastest in the...

journal_title：Phytopathology

authors： McGarvey JA,Denny TP,Schell MA

更新日期：1999-12-01 00:00:00

abstract：:ABSTRACT The effect of temperature on infection of lettuce by Bremia lactucae was investigated in controlled environment studies and in the field. In controlled conditions, lettuce seedlings inoculated with B. lactucae were incubated at 15, 20, 25, or 30 degrees C during a 4-h wet period immediately after inoculation ...

journal_title：Phytopathology

authors： Wu BM,van Bruggen AH,Subbarao KV,Scherm H

更新日期：2002-06-01 00:00:00

abstract：:ABSTRACT Twenty-one strains of Botrytis cinerea isolated from 13 species of plants grown in China were compared for pathogenicity on Brassica napus, mycelial growth on potato dextrose agar, and presence of double-stranded (ds)RNA. The results showed that the strain CanBc-1 was severely debilitated in pathogenicity and...

journal_title：Phytopathology

authors： Wu MD,Zhang L,Li GQ,Jiang DH,Hou MS,Huang HC

更新日期：2007-12-01 00:00:00

abstract：:ABSTRACT The infection of Arabidopsis thaliana roots with the obligate parasite Orobanche ramosa represents a useful model for a study of the molecular events involved in the host plant response to a parasitic plant attack. To avoid analysis problems due to the subterranean development of O. ramosa, we developed two i...

journal_title：Phytopathology

authors： Dos Santos CV,Letousey P,Delavault P,Thalouarn P

更新日期：2003-04-01 00:00:00

abstract：:Late blight caused by Phytophthora infestans (Mont.) de Bary is a constraint to both potato and tomato crops in Nicaragua. The hypothesis that the Nicaraguan population of P. infestans is genotypically and phenotypically diverse and potentially subdivided based on host association was tested. A collection of isolates ...

journal_title：Phytopathology

authors： Blandón-Díaz JU,Widmark AK,Hannukkala A,Andersson B,Högberg N,Yuen JE

更新日期：2012-03-01 00:00:00

abstract：:Seiridium cardinale is the pathogenic fungus of unknown origin responsible for a world pandemic known as cypress canker affecting several species of Cupressaceae in both the Northern and Southern Hemisphere. In this study, a comparative genetic analysis of worldwide populations was performed using sequence analysis of...

journal_title：Phytopathology

authors： Della Rocca G,Eyre CA,Danti R,Garbelotto M

更新日期：2011-12-01 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：: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：:Xylella fastidiosa releases outer membrane vesicles (OMVs) known to play a role in the systemic dissemination of this pathogen. OMVs inhibit bacterial attachment to xylem wall and traffic lipases/esterases that act on the degradation of plant cell wall. Here, we extended the characterization of X. fastidiosa OMVs by i...

journal_title：Phytopathology

authors： Feitosa-Junior OR,Stefanello E,Zaini PA,Nascimento R,Pierry PM,Dandekar AM,Lindow SE,da Silva AM

更新日期：2019-08-01 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：:ABSTRACT Comparison of a sampling of complementary DNA (cDNA) sequences from the Florida citrus tristeza virus (CTV) isolates T3 and T30 to the sequence of the genome of the Israeli isolate VT showed a relatively consistent or symmetrical distribution of nucleotide sequence identity in both the 5' and 3' regions of th...

journal_title：Phytopathology

authors： Hilf ME,Karasev AV,Albiach-Marti MR,Dawson WO,Garnsey SM

更新日期：1999-04-01 00:00:00

abstract：:Citrus is an economically important fruit crop that is severely afflicted by Asiatic citrus bacterial canker (CBC), a disease caused by the phytopathogen Xanthomonas citri subsp. citri (X. citri). To gain insight into the molecular epidemiology of CBC, 42 Xanthomonas isolates were collected from a range of Citrus spp....

journal_title：Phytopathology

authors： Chiesa MA,Siciliano MF,Ornella L,Roeschlin RA,Favaro MA,Delgado NP,Sendín LN,Orce IG,Ploper LD,Vojnov AA,Vacas JG,Filippone MP,Castagnaro AP,Marano MR

更新日期：2013-06-01 00:00:00

abstract：:ABSTRACT Crown rust (Puccinia coronata) in indigenous populations of Avena sterilis has been cited as an example of stability of wild pathosystems that consist of natural mixtures of resistance and virulence. This study confirmed that virulence/avirulence polymorphisms in P. coronata on A. sterilis in Israel are highl...

journal_title：Phytopathology

authors： Leonard KJ,Anikster Y,Manisterski J

更新日期：2004-05-01 00:00:00

abstract：:ABSTRACT The colonization of individual flowers in mature pear orchards by Pseudomonas fluorescens strain A506 applied at different times during bloom was measured to determine the receptivity of flowers to colonization and the extent of intra-tree movement over time. Strain A506 populations in flowers open at inocula...

journal_title：Phytopathology

authors： Lindow SE,Suslow TV

更新日期：2003-06-01 00:00:00

abstract：:The Lasiodiplodia theobromae genome encodes numerous glycoside hydrolases involved in organic matter degradation and conducive to pathogen infection, whereas their molecular mechanisms are still largely unknown. Here, we identified the glycoside hydrolase family 28 endopolygalacturonase LtEPG1 in L. theobromae and cha...

journal_title：Phytopathology

authors： Thilini Chethana KW,Peng J,Li X,Xing Q,Liu M,Zhang W,Hyde KD,Zhao W,Yan J

更新日期：2020-10-01 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：:Indicator species analysis (ISA) uses indices of an organism's relative abundance and occurrence to estimate the strength of its associations with a priori groups of interest and a simple randomization test to evaluate the probability of association. Because ISA values tend to be greatest when a species is both relati...

journal_title：Phytopathology

authors： Severns PM,Sykes EM

更新日期：2020-12-01 00:00:00