Combining biocontrol agents to reduce the variability of biological control.

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：: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：:In the Japanese pear pathotype of Alternaria alternata, H2O2 is generated solely from penetration pegs and not from other portions of subcuticular hyphae within the pectin layers of host leaves. A close association between H2O2 generation and fungal aggressiveness is expected because the pegs are important for fungal ...

journal_title：Phytopathology

authors： Hyon GS,Ikeda K,Hosogi N,Shinogi T,Park P

更新日期：2010-09-01 00:00:00

abstract：:Growth chamber and field studies were conducted with organic amendment mixtures of carbon (C) and nitrogen (N) at C:N ratios 10:1, 20:1, 30:1, and 40:1 and amendment rates of C at 2, 4, 6, and 8 mg/g of soil (C:N ratio 30:1) to evaluate anaerobic soil disinfestation (ASD) effects on germination and colonization of Scl...

journal_title：Phytopathology

authors： Shrestha U,Dee ME,Ownley BH,Butler DM

更新日期：2018-03-01 00:00:00

abstract：:Kiwifruit bleeding sap samples, collected in Italian and Chilean orchards from symptomatic and asymptomatic plants, were evaluated for the presence of Pseudomonas syringae pv. actinidiae, the causal agent of bacterial canker. The saps were sampled during the spring in both hemispheres, before the bud sprouting, during...

journal_title：Phytopathology

authors： Biondi E,Zamorano A,Vega E,Ardizzi S,Sitta D,De Salvador FR,Campos-Vargas R,Meneses C,Perez S,Bertaccini A,Fiore N

更新日期：2018-05-01 00:00:00

abstract：:ABSTRACT Application of salicylic acid induces systemic acquired resistance in tobacco. pchA and pchB, which encode for the biosynthesis of salicylic acid in Pseudomonas aeruginosa, were cloned into two expression vectors, and these constructs were introduced into two root-colonizing strains of P. fluorescens. Introdu...

journal_title：Phytopathology

authors： Maurhofer M,Reimmann C,Schmidli-Sacherer P,Heeb S,Haas D,Défago G

更新日期：1998-07-01 00:00:00

abstract：:Understanding pathogen evolution over time is vital for plant breeding and deployment of host resistance. In the context of a soilborne pathogen, the potential of host-directed evolution of a Verticillium dahliae race 1 isolate and genotypic variation of V. dahliae associated with two major hosts (lettuce and tomato) ...

journal_title：Phytopathology

authors： Puri KD,Gurung S,Short DPG,Atallah ZK,Sandoya G,Davis RM,Hayes RJ,Subbarao KV

更新日期：2017-11-01 00:00:00

abstract：:Tamarillo, or tree tomato (Solanum betaceum), is a perennial small tree or shrub species cultivated in subtropical areas for fresh fruit and juice production. In Ecuador, tamarillo orchards are affected by several viruses, with one previously identified as potato virus Y (PVY); however, the specific strain composition...

journal_title：Phytopathology

authors： Green KJ,Funke CN,Chojnacky J,Alvarez-Quinto RA,Ochoa JB,Quito-Avila DF,Karasev AV

更新日期：2020-09-01 00:00:00

abstract：:ABSTRACT Chemical applications, with the exception of mancozeb, reduced population sizes and spread of Clavibacter michiganensis subsp. michiganensis among tomato seedlings in the greenhouse and impacted subsequent plant development and yield in the field. While applications of copper hydroxide, copper hydroxide/manco...

journal_title：Phytopathology

authors： Hausbeck MK,Bell J,Medina-Mora C,Podolsky R,Fulbright DW

更新日期：2000-01-01 00:00:00

abstract：:Crown rust is the most damaging disease of cultivated oat (Avena sativa) and genetic resistance is the primary means of controlling the disease. Quantitative trait loci (QTL) with major and minor effects have been identified in Ogle1040 and TAM O-301 (most notably, Pc58 and PcNQMG/LGCG from TAM O-301 and OT-27 from Og...

journal_title：Phytopathology

authors： Jackson EW,Obert DE,Avant JB,Harrison SA,Chong J,Carson ML,Bonman JM

更新日期：2010-05-01 00:00:00

abstract：:Key weather factors determining the occurrence and severity of powdery mildew and yellow rust epidemics on winter wheat were identified. Empirical models were formulated to qualitatively predict a damaging epidemic (>5% severity) and quantitatively predict the disease severity given a damaging epidemic occurred. The d...

journal_title：Phytopathology

authors： Te Beest DE,Paveley ND,Shaw MW,van den Bosch F

更新日期：2008-05-01 00:00:00

abstract：:ABSTRACT A genetic map including three avirulence (Avr) genes, AvrPik, AvrPiz, and AvrPiz-t, was constructed in a genetic cross of two rice field isolates, 84R-62B and Y93-245c-2. The chromosomal locations of the Avr genes were determined by using selected markers to probe Southern blots of the parental chromosomes th...

journal_title：Phytopathology

authors： Luo CX,Yin LF,Koyanagi S,Farman ML,Kusaba M,Yaegashi H

更新日期：2005-06-01 00:00:00

abstract：:ABSTRACT We evaluated combinations of two strains of plant growth-promoting rhizobacteria (PGPR) formulated with the carrier chitosan for the ability to induce growth promotion of tomato plants and resistance to infection by Cucumber mosaic virus (CMV). Each PGPR combination included GB03 (Bacillus subtilis) and one o...

journal_title：Phytopathology

authors： Murphy JF,Reddy MS,Ryu CM,Kloepper JW,Li R

更新日期：2003-10-01 00:00:00

abstract：:The phytopathogen Phytophthora cactorum infects economically important herbaceous and woody plant species. P. cactorum isolates differ in host specificity; for example, strawberry crown rot is often caused by a specialized pathotype. Here we compared the transcriptomes of two P. cactorum isolates that differ in their ...

journal_title：Phytopathology

authors： Toljamo A,Blande D,Munawar M,Kärenlampi SO,Kokko H

更新日期：2019-05-01 00:00:00

abstract：:The recent rapid emergence of maize lethal necrosis (MLN), caused by coinfection of maize with Maize chlorotic mottle virus (MCMV) and a second virus usually from the family Potyviridae, is causing extensive losses for farmers in East Africa, Southeast Asia, and South America. Although the genetic basis of resistance ...

journal_title：Phytopathology

authors： Jones MW,Penning BW,Jamann TM,Glaubitz JC,Romay C,Buckler ES,Redinbaugh MG

更新日期：2018-06-01 00:00:00

abstract：:ABSTRACT The contribution of gluconic acid secretion to the colonization of apple tissue by Penicillium expansum was analyzed by modulation (increase or decrease) of gluconic acid accumulation at the infection court. P. expansum isolates that express the most gox2 transcripts and concomitant glucose oxidase (GOX) acti...

journal_title：Phytopathology

authors： Hadas Y,Goldberg I,Pines O,Prusky D

更新日期：2007-03-01 00:00:00

abstract：:ABSTRACT Severe epidemics of Fusarium head blight (FHB) caused by Fusarium graminearum, group II (teleomorph: Gibberella zeae) have been occurring on wheat crops in the northcentral United States and southern Canada. Evaluation of resistance to FHB is difficul, because resistance is partial and infection depends upon ...

journal_title：Phytopathology

authors： Campbell KA,Lipps PE

更新日期：1998-10-01 00:00:00

abstract：:ABSTRACT Wheat was assessed at four crop growth stages for take-all (Gaeumannomyces graminis var. tritici) in a series of field trials that studied the effects of five wheat management practices: sowing date, plant density, nitrogen fertilizer dose and form, and removal/burial of cereal straw. An equation expressing d...

journal_title：Phytopathology

authors： Colbach N,Lucas P,Meynard JM

更新日期：1997-01-01 00:00:00

abstract：:ABSTRACT Biocontrol activity of Candida saitoana and its interaction with Botrytis cinerea in apple wounds were investigated. When cultured together, yeast attached to Botrytis sp. hyphal walls. In wounded apple tissue, C. saitoana restricted the proliferation of B. cinerea, multiplied, and suppressed disease caused b...

journal_title：Phytopathology

authors： El-Ghaouth A,Wilson CL,Wisniewski M

更新日期：1998-04-01 00:00:00

abstract：:ABSTRACT Sphaeropsis sapinea is the causal agent of Sphaeropsis tip blight disease of pines. Past surveys of diseased and symptomless Austrian and Scots pines revealed that latent infections of symptomless shoots by S. sapinea are common. The role of these latent infections in the tip blight disease is unknown. A samp...

journal_title：Phytopathology

authors： Flowers J,Hartman J,Vaillancourt L

更新日期：2003-12-01 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 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：: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：:Xanthomonads were detected by using the Xan-D(CCF) medium from the brassica seeds, and their pathogenicity was determined by plant inoculation tests. It was found that some seed lots were infested with Xanthomonas campestris pv. campestris, some with X. campestris pv. raphani, and some with nonpathogenic xanthomonads....

journal_title：Phytopathology

authors： Lee YA,Yang PY,Huang SC

更新日期：2020-05-01 00:00:00

abstract：:Pseudomonas syringae pv. syringae, the causal agent of bacterial apical necrosis (BAN) in mango crops, has been isolated in different mango-producing areas worldwide. An extensive collection of 87 P. syringae pv. syringae strains isolated from mango trees affected by BAN from different countries, but mainly from South...

journal_title：Phytopathology

authors： Gutiérrez-Barranquero JA,Carrión VJ,Murillo J,Arrebola E,Arnold DL,Cazorla FM,de Vicente A

更新日期：2013-11-01 00:00:00

abstract：:Fish emulsion (FE) added to a sandy-loam soil at 1 and 2% rates reduced the viability of Verticillium dahliae microsclerotia by 39 and 74% in 1 day, 87 and 98% in 3 days, and 95 and 99% in 6 days, respectively. The immediate kill of microsclerotia indicated that FE contains toxic substances. We found in FE high concen...

journal_title：Phytopathology

authors： Abbasi PA,Lazarovits G,Jabaji-Hare S

更新日期：2009-03-01 00:00:00

abstract：:We report the detection of the huanglongbing (HLB)-associated bacterium 'Candidatus Liberibacter asiaticus' from both plants and insects in Pakistan and the seasonal variability in the numbers of 'Ca. L. asiaticus'-positive psyllid vector, Diaphorina citri. Our studies showed that 'Ca. L. asiaticus' was detectable fro...

journal_title：Phytopathology

authors： Razi MF,Keremane ML,Ramadugu C,Roose M,Khan IA,Lee RF

更新日期：2014-03-01 00:00:00

abstract：:ABSTRACT Liquid swine manure added to acidic soils killed microsclerotia of the wilt fungus Verticillium dahliae. We investigated whether volatile fatty acids (VFAs) in the manure were responsible for this toxicity. The survival of microsclerotia was determined after exposure to various dilutions of manure or its VFA ...

journal_title：Phytopathology

authors： Tenuta M,Conn KL,Lazarovits G

更新日期：2002-05-01 00:00:00

abstract：:This study investigated the effect of silicon (Si) on the photosynthetic gas exchange parameters (net CO2 assimilation rate [A], stomatal conductance to water vapor [gs], internal CO2 concentration [Ci], and transpiration rate [E]) and chlorophyll fluorescence a parameters (maximum quantum quenching [Fv/Fm and Fv'/Fm'...

journal_title：Phytopathology

authors： Perez CE,Rodrigues FÁ,Moreira WR,DaMatta FM

更新日期：2014-02-01 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