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 constructed by comparing the area under the disease progress curve (AUDPC) values of 172 genotypes with that of susceptible control 'Yungay'. In total, 70 potato genotypes had a coefficient of variability <0.5 and were considered stable across the environments tested. A principal component analysis demonstrated that the ensemble of experiments formed two distinct groups that reflect the stability of genotype resistance to late blight. Phytophthora infestans isolates present in the experimental fields belonged to the EC-1 clonal lineage and showed variation in virulence beyond the concept of the avirulence determined by the conventionally used R1-R11 differential set. A single-nucleotide polymorphism (SNP) marker on chromosome 9 was associated with late blight resistance and linked to instability. Genotypes with either AACC or AAAC combinations for this SNP were highly resistant only in some environments, while the genotypes with the AAAA combination had more moderate levels of resistance but were stable across environments.
journal_name
Phytopathologyjournal_title
Phytopathologyauthors
Lindqvist-Kreuze H,Gastelo M,Perez W,Forbes GA,de Koeyer D,Bonierbale Mdoi
10.1094/PHYTO-10-13-0270-Rsubject
Has Abstractpub_date
2014-06-01 00:00:00pages
624-33issue
6eissn
0031-949Xissn
1943-7684journal_volume
104pub_type
杂志文章相关文献
PHYTOPATHOLOGY文献大全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
pub_type: 杂志文章
doi:10.1094/PHYTO-08-17-0278-R
更新日期:2018-05-01 00:00:00
abstract::ABSTRACT Ten wild-type strains and two benomyl-resistant mutants of Talaromyces flavus were examined for their ability to secrete the cell wall-degrading enzymes chitinase, beta-1,3-glucanase, and cellulase, to parasitize sclerotia of Sclerotium rolfsii, to reduce bean stem rot caused by S. rolfsii, and to secrete ant...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO.1997.87.10.1054
更新日期:1997-10-01 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
pub_type: 杂志文章
doi:10.1094/PHYTO.1999.89.9.728
更新日期:1999-09-01 00:00:00
abstract::Reniform nematode (RN) is an important pest in cotton production. Knowledge of the distribution patterns of RN is essential for selecting sampling strategies and for site-specific management. A 3-year study was conducted in two fields in South Carolina with the purpose of characterizing the distribution of RN using a ...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO-09-14-0240-R
更新日期:2015-05-01 00:00:00
abstract::ABSTRACT The role of riboflavin as an elicitor of systemic resistance and an activator of a novel signaling process in plants was demonstrated. Following treatment with riboflavin, Arabidopsis thaliana developed systemic resistance to Peronospora parasitica and Pseudomonas syringae pv. Tomato, and tobacco developed sy...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO.2000.90.8.801
更新日期:2000-08-01 00:00:00
abstract::ABSTRACT Epicuticular wax on needles was evaluated for its influence on Cronartium ribicola infection of resistant and susceptible selections of Pinus strobus. Environmental scanning electron microscopy comparisons revealed that needles from a resistant selection of eastern white pine, P327, had a significantly higher...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO-96-0171
更新日期:2006-02-01 00:00:00
abstract::ABSTRACT Natural potato late blight epidemics were studied to assess the relative impact of various inoculum sources of Phytophthora infestans in Southern Flevoland (the Netherlands) from 1994 through 1996. Disease surveys were combined with characterization of isolates for mating type and DNA fingerprint pattern usin...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO.1998.88.8.754
更新日期:1998-08-01 00:00:00
abstract::Murraya paniculata and Swinglea glutinosa are aurantioid hosts of the Asian citrus psyllid (ACP) Diaphorina citri, the principal vector of 'Candidatus Liberibacter asiaticus' (Las). Las is the pathogen associated with huanglongbing (HLB), the Asian form of which is the most devastating disease of Citrus species and cu...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO-06-19-0216-R
更新日期:2019-12-01 00:00:00
abstract::Cucurbit downy mildew (CDM), caused by the obligate oomycete Pseudoperonospora cubensis, has resurged around the world during the past three decades. A new pathotype or genetic recombinant of P. cubensis have been suggested as possible reasons for the resurgence of CDM in the United States in 2004. In total, 22 isolat...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO-07-16-0277-R
更新日期:2017-06-01 00:00:00
abstract::The new broad-spectrum fungicides from the succinate dehydrogenase inhibitor (SDHI) class have been quickly adopted by the market, which may lead to a high selection pressure on various pathogens. Cases of resistance have been observed in 14 fungal pathogens to date and are caused by different mutations in genes encod...
journal_title:Phytopathology
pub_type: 杂志文章,评审
doi:10.1094/PHYTO-01-13-0009-RVW
更新日期:2013-09-01 00:00:00
abstract::ABSTRACT In 1980, over 90% of all plant-pathogenic pseudomonads and xanthomonads were lumped into Pseudomonas syringae and Xanthomonas campestris, respectively, as pathovars. The term "pathovar" was created to preserve the name of plant pathogens, but has no official standing in nomenclature. Proposals to elevate and ...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO.2000.90.3.208
更新日期:2000-03-01 00:00:00
abstract::ABSTRACT Pasteuria penetrans is a bacterial parasite of root-knot nematodes that shows great potential as a biocontrol agent. Scanning and transmission electron microscopy were used to study the ultrastructure, morphology, and sporogenesis of four isolates of P. penetrans. The effects of different Meloidogyne spp. and...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO.1997.87.3.273
更新日期:1997-03-01 00:00:00
abstract::ABSTRACT Barley has two flowering types, chasmogamous (open-flowering) and cleistogamous (closed-flowering). We examined the effect of the timing of Fusarium graminearum infection on Fusarium head blight (FHB) and mycotoxin accumulation in barley cultivars with different flowering types using greenhouse experiments. I...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO-97-9-1054
更新日期:2007-09-01 00:00:00
abstract::ABSTRACT Isolates of Colletotrichum spp. from almond, avocado, and strawberry from Israel and isolates of the pink subpopulation from almond from the United States were characterized by various molecular methods and compared with morphological identification. Taxon-specific primer analysis grouped the avocado isolates...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO.2000.90.6.608
更新日期:2000-06-01 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
pub_type: 杂志文章
doi:10.1094/PHYTO-100-9-0840
更新日期:2010-09-01 00:00:00
abstract::There is increasing use of networks in ecology and epidemiology, but still relatively little application in phytopathology. Networks are sets of elements (nodes) connected in various ways by links (edges). Network analysis aims to understand system dynamics and outcomes in relation to network characteristics. Many exi...
journal_title:Phytopathology
pub_type: 杂志文章,评审
doi:10.1094/PHYTO-07-10-0192
更新日期:2011-04-01 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
pub_type: 杂志文章
doi:10.1094/PHYTO.2002.92.4.378
更新日期:2002-04-01 00:00:00
abstract::ABSTRACT Recently, the gene-for-gene host-parasite coevolution model of Leonard was extended by incorporating two kinds of perturbations. The first kind was the natural perturbations that include those caused by pathogen migration between the two subpopulations of the host, forward and backward mutations in the host o...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO.1999.89.9.811
更新日期:1999-09-01 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
pub_type: 杂志文章
doi:10.1094/PHYTO.1999.89.12.1233
更新日期:1999-12-01 00:00:00
abstract::ABSTRACT Sudden death syndrome (SDS) of soybean is caused by the soilborne Fusarium solani f. sp. glycines (synonym F. virguliforme). In a sequential approach, two multifactor factorial-design microplot experiments were conducted to investigate the effects of fungal infestation levels and soil moisture on both root ne...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO-96-0763
更新日期:2006-07-01 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
pub_type: 杂志文章
doi:10.1094/PHYTO.2003.93.7.881
更新日期:2003-07-01 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
pub_type: 杂志文章
doi:10.1094/PHYTO.2004.94.7.766
更新日期:2004-07-01 00:00:00
abstract::ABSTRACT Effective biocontrol strains of Trichoderma virens can induce the production of defense-related compounds in the roots of cotton. Ineffective strains do not induce these compounds to significant levels. This elicittation was found to be heat stable, insoluble in chloroform, passed through a 5K molecular weigh...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO.2004.94.2.171
更新日期:2004-02-01 00:00:00
abstract::ABSTRACT An epidemiological model integrating three organizational scales of host plant populations (e.g., sites, leaves, and plants) is presented. At the lowest (site) scale, the model simulates the dynamics of vacant, latent, infectious, and removed sites. Three types of vacant sites are distinguished, depending on ...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO.2004.94.8.883
更新日期:2004-08-01 00:00:00
abstract::Barley is a host to Puccinia striiformis f. sp. hordei, and is an intermediate or near nonhost to the formae speciales adapted to wheat (P. striiformis f. sp. tritici) and to barley grass (P. striiformis f. sp. pseudo-hordei). The genetic basis of resistance to these forms of P. striiformis is not well understood. Acc...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO-10-17-0345-R
更新日期:2018-05-01 00:00:00
abstract::ABSTRACT Geminiviruses are a group of single-stranded DNA viruses that cause major losses on a number of important crops throughout the world. Bean golden mosaic virus (BGMV) is a typical bipartite, whitefly-transmitted geminivirus that causes a severe disease on beans (Phaseolus vulgaris) in the Western Hemisphere. T...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO.1999.89.6.480
更新日期:1999-06-01 00:00:00
abstract::Pierce's disease (PD) of Vitis vinifera grapevines is caused by the bacterium Xylella fastidiosa, a pathogen with a wide plant host range. Exposure of X. fastidiosa-infected plant tissue to cold temperatures has been shown to be effective at eliminating the pathogen from some plant hosts such as grapevines. This "cold...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO-08-10-0207
更新日期:2011-12-01 00:00:00
abstract::ABSTRACT An experiment was designed to compare cycles of selection of four maize genotypes for ear- and grain-quality characteristics, interactions with Aspergillus flavus and Fusarium verticillioides infection, and insect ear infestation in two seasons. Mean infection levels by A. flavus and F. verticillioides were s...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO.2000.90.3.276
更新日期:2000-03-01 00:00:00
abstract::ABSTRACT Meta-analysis is a set of statistical procedures for synthesizing research results from a number of different studies. An estimate of a statistical effect, such as the difference in disease severity for plants with or without a management treatment, is collected from each study along with a measure of the var...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO.2004.94.9.1013
更新日期:2004-09-01 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
pub_type: 杂志文章
doi:10.1094/PHYTO-12-11-0330
更新日期:2012-07-01 00:00:00