Testing Taxonomic Predictivity of Foliar and Tuber Resistance to Phytophthora infestans in Wild Relatives of Potato.

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：: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：: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：: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：:Wheat landrace PI 177906 has seedling resistance to stem rust caused by Puccinia graminis f. sp. tritici races TTKSK, TTKST, and BCCBC and field resistance to the Ug99 race group. Parents, 140 recombinant inbred lines, and 138 double haploid (DH) lines were evaluated for seedling resistance to races TTKSK and BCCBC. P...

journal_title：Phytopathology

authors： Babiker EM,Gordon TC,Chao S,Rouse MN,Wanyera R,Acevedo M,Brown-Guedira G,Bonman JM

更新日期：2017-02-01 00:00:00

abstract：:Sphaeropsis sapinea sensu lato is a conifer fungal pathogen that causes shoot blight and stem cankers. Recently, the former S. sapinea has been divided into two species, Diplodia pinea and D. scrobiculata. The aims of the study were to determine the contribution of each species in disease development on red and jack p...

journal_title：Phytopathology

authors： Santamaría O,Smith DR,Stanosz GR

更新日期：2011-03-01 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：:Oomycetes are fungal-like pathogens that cause notorious diseases. Protecting crops against oomycetes requires regular spraying with chemicals, many with an unknown mode of action. In the 1990s, flumorph was identified as a novel crop protection agent. It was shown to inhibit the growth of oomycete pathogens including...

journal_title：Phytopathology

authors： Hua C,Kots K,Ketelaar T,Govers F,Meijer HJ

更新日期：2015-04-01 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：:ABSTRACT Vegetative compatibility has been used to assess the population biology of many fungal plant pathogens. However, for many species, including Fusarium graminearum, this has meant making auxotrophic mutants to force heterokaryon formation. A method was developed to observe barrage zones of thick, raised myceliu...

journal_title：Phytopathology

authors： McCallum BD,Tekauz A,Gilbert J

更新日期：2004-05-01 00:00:00

abstract：:ABSTRACT Leaf rust and stripe rust, caused by Puccinia triticina and P. striiformis, respectively, are important diseases of wheat in many countries. In this study we sought to identify molecular markers for adult plant resistance genes that could aid in incorporating such durable resistance into wheat. We used a doub...

journal_title：Phytopathology

authors： Suenaga K,Singh RP,Huerta-Espino J,William HM

更新日期：2003-07-01 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 A 3.3-kb fragment of genomic DNA from bacteriophage Phi-Ea1h encoding an amylovoran-directed depolymerase lyase was sequenced, and three open reading frames (ORFs) were detected. The first ORF could encode a lysozyme and the second a holin that may form a pore supporting cell lysis by the lysozyme. The third ...

journal_title：Phytopathology

authors： Kim WS,Geider K

更新日期：2000-11-01 00:00:00

abstract：:Wine contamination with ochratoxin A (OTA) is due to the attack of wine grapes by ochratoxigenic Aspergillus carbonarius and Aspergillus spp. section Nigri. Four A. pullulans strains, AU14-3-1, AU18-3B, AU34-2, and LS30, are resistant to and actively degrade ochratoxin A in vitro. The less toxic ochratoxin alpha and t...

journal_title：Phytopathology

authors： de Felice DV,Solfrizzo M,De Curtis F,Lima G,Visconti A,Castoria R

更新日期：2008-12-01 00:00:00

abstract：:ABSTRACT Monoconidial isolates of Venturia inaequalis were collected in 1990 and 1991 from orchards in New York, Michigan, and Nova Scotia that had never or only sporadically been treated with fungicides acting as sterol demethylation inhibitors (DMIs). Sensitivities of isolates to two representative DMIs (fenarimol a...

journal_title：Phytopathology

authors： Köller W,Wilcox WF,Barnard J,Jones AL,Braun PG

更新日期：1997-02-01 00:00:00

abstract：:ABSTRACT Ageratum conyzoides plants exhibiting yellow vein symptoms, collected near Haikou, Hainan Province, China, contained begomoviral DNA-A-like molecules. The complete sequences of the molecules from two samples, Hn2 and Hn2-19, were shown to consist of 2,768 and 2,748 nucelotides (nt), respectively. These sequen...

journal_title：Phytopathology

authors： Xiong Q,Fan S,Wu J,Zhou X

更新日期：2007-04-01 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：:ABSTRACT The effects of date of inoculation on the development of Pierce's disease (PD) were evaluated in California grapevines during 1997 through 2000 at four locations. Some vines that had been inoculated either by using blue-green sharpshooters (Graphocephala atropunctata) as vectors or mechanically by needle punc...

journal_title：Phytopathology

authors： Feil H,Feil WS,Purcell AH

更新日期：2003-02-01 00:00:00

abstract：:β-Tubulin is the target of benzimidazole fungicides, the most widely used of which is carbendazim (methyl benzimidazol-2-ylcarbamate [MBC]). MBC sensitivity is determined by the differential affinity of MBC for β-tubulins. However, the mechanism of less sensitivity of Fusarium graminearum to MBC compared with other fu...

journal_title：Phytopathology

authors： Zhu Y,Liang X,Li Y,Duan Y,Zheng Z,Wang J,Zhou M

更新日期：2018-03-01 00:00:00

abstract：:ABSTRACT To explore the potential for nontoxic crop protection technologies based on the inhibition of fungal spore adhesion, we have tested the effect of synthetic zosteric acid (p-(sulfo-oxy) cinnamic acid), a naturally occurring phenolic acid in eelgrass (Zostera marina L.) plants, on spore adhesion and infection i...

journal_title：Phytopathology

authors： Stanley MS,Callow ME,Perry R,Alberte RS,Smith R,Callow JA

更新日期：2002-04-01 00:00:00

abstract：:ABSTRACT The complete sequence of the 7.07 Mb genome of the biological control agent Pseudomonas fluorescens Pf-5 is now available, providing a new opportunity to advance knowledge of biological control through genomics. P. fluorescens Pf-5 is a rhizosphere bacterium that suppresses seedling emergence diseases and pro...

journal_title：Phytopathology

authors： Loper JE,Kobayashi DY,Paulsen IT

更新日期：2007-02-01 00:00:00

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：:Xylella fastidiosa infects a wide range of plant hosts and causes Pierce's disease (PD) of grapevines. The type 1 multidrug resistance (MDR) efflux system is essential for pathogenicity and survival of bacterial pathogens in planta. X. fastidiosa, with a single MDR system, is significantly more vulnerable to inhibitio...

journal_title：Phytopathology

authors： Zhang S,Jain M,Fleites LA,Rayside PA,Gabriel DW

更新日期：2019-02-01 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：:The root-lesion nematode Pratylenchus thornei is a major pathogen of wheat (Triticum aestivum) in many regions globally. Resistance of wheat genotypes to P. thornei can be determined from final nematode population densities in glasshouse experiments but combining results across multiple experiments presents challenges...

journal_title：Phytopathology

authors： Thompson JP,Sheedy JG,Robinson NA

更新日期：2020-02-01 00:00:00

abstract：:The increase in the incidence of gastroenteritis outbreaks linked to the consumption of foods of plant origin has ignited public concern and scientific interest in understanding interactions of human enteric pathogens with plants. Enteric disease caused by nontyphoidal Salmonella is a major public health burden, with ...

journal_title：Phytopathology

authors： Brandl MT,Cox CE,Teplitski M

更新日期：2013-04-01 00:00:00

abstract：:In planta growth of Zymoseptoria tritici, causal agent of Septoria tritici blotch of wheat, during the infection process has remained an understudied topic due to the long symptomless latent period before the emergence of fruiting bodies. In this study, we attempted to understand the relationship between in planta gro...

journal_title：Phytopathology

authors： Rahman A,Doohan F,Mullins E

更新日期：2020-06-01 00:00:00

abstract：:ABSTRACT Laboratory studies were conducted on the characteristics of beet yellows closterovirus (BYV) transmission to sugar beets by the bean aphid, Aphis fabae. The relative transmission efficiency and the retention, acquisition, and inoculation thresholds were evaluated using clonal aphid colonies. Transmission effi...

journal_title：Phytopathology

authors： Limburg DD,Mauk PA,Godfrey LD

更新日期：1997-07-01 00:00:00

abstract：:ABSTRACT Pectobacterium and Dickeya spp. are related broad-host-range entero-bacterial pathogens of angiosperms. A review of the literature shows that these genera each cause disease in species from at least 35% of angiosperm plant orders. The known host ranges of these pathogens partially overlap and, together, these...

journal_title：Phytopathology

authors： Ma B,Hibbing ME,Kim HS,Reedy RM,Yedidia I,Breuer J,Breuer J,Glasner JD,Perna NT,Kelman A,Charkowski AO

更新日期：2007-09-01 00:00:00

abstract：:A growth assay in lemon juice and polymerase chain reaction amplifications using newly designed species-specific primers from endopolygalacturonase and β-tubulin genes rapidly differentiated isolates of the morphologically similar fruit sour rot pathogens Galactomyces citriaurantii and G. geotrichum. Isolates of both ...

journal_title：Phytopathology

authors： McKay AH,Förster H,Adaskaveg JE

更新日期：2012-05-01 00:00:00