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 necrosis and foliar SDS severity, and the interaction between F. solani f. sp. glycines and Heterodera glycines in fumigated versus nonfumigated soil. In 2003, soybean cv. Spencer was grown in nonfumigated or methyl bromide-fumigated soil and infested with increasing levels of F. solani f. sp. glycines, either under rainfall or irrigated after growth stage V6/R1. In 2004, interactions between F. solani f. sp. glycines and H. glycines were explored in a factorial inoculation design in fumigated or nonfumigated soil, planted to Williams 82 or Cyst-X20-18. In both years, higher levels of foliar SDS severity and root necrosis were found in F. solani f. sp. glycines-infested soils with H. glycines than in soils without the nematode on the soybean cultivars susceptible to both pathogens. Both natural infestations of H. glycines in 2003 and artificially amended populations of H. glycines in 2004 contributed to higher foliar SDS severity. More severe foliar SDS symptoms always were associated with more root necrosis, but elevated levels of root necrosis did not predict severe leaf symptoms. In contrast to the critical role of H. glycines, increasing fungal infestation levels had no significant effects on increasing either foliar SDS symptoms or root necrosis. Effects of moisture regime and fungal infestation levels also were examined in factorial greenhouse and growth chamber experiments. High soil moisture resulted in higher levels of SDS root necrosis. In the greenhouse, root necrosis increased at a higher rate in low soil moisture than the rate in high soil moisture. The two pathogens acted as a complex and the disease development was strongly dependent on high soil moisture.
journal_name
Phytopathologyjournal_title
Phytopathologyauthors
Xing L,Westphal Adoi
10.1094/PHYTO-96-0763subject
Has Abstractpub_date
2006-07-01 00:00:00pages
763-70issue
7eissn
0031-949Xissn
1943-7684journal_volume
96pub_type
杂志文章相关文献
PHYTOPATHOLOGY文献大全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::Moroccan watermelon mosaic virus (MWMV) represents an emerging threat to cucurbit production in the Mediterranean Basin. We sequenced the near complete genome of MWMV-SQ10_1.1, a cloned Spanish isolate. MWMV-SQ10_1.1 has the typical potyvirus genomic structure, and phylogenetic analysis showed that it shared a common ...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO-10-18-0395-R
更新日期:2019-05-01 00:00:00
abstract::We used a real time polymerase chain reaction-based assay and visual disease assessment to evaluate the efficacies of Js399-19, tebuconazole, a mixture of tebuconazole and thiram, azoxystrobin, carbendazim, and thiram on the development of Fusarium head blight (FHB) and deoxynivalenol (DON) contamination and on the yi...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO-99-1-0095
更新日期:2009-01-01 00:00:00
abstract::Although 'Candidatus Liberibacter asiaticus' (Las) is a major pathogen associated with citrus huanglongbing (HLB), some characteristics of transmission by the psyllid vector Diaphorina citri are not fully understood. We examined the latent period and persistence of transmission of Las by D. citri in a series of experi...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO-02-16-0088-R
更新日期:2017-03-01 00:00:00
abstract::ABSTRACT Suppressive effects of soil amendment with residues of 12 cultivars of Brassica rapa on damping-off of sugar beet were evaluated in soils infested with Rhizoctonia solani. Residues of clover and peanut were tested as noncruciferous controls. The incidence of damping-off was significantly and consistently supp...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO-96-1372
更新日期:2006-12-01 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
pub_type: 杂志文章
doi:10.1094/PHYTO-100-5-0484
更新日期:2010-05-01 00:00:00
abstract::Tomato is an economic crop worldwide. Many limiting factors reduce the production of tomato, with bacterial wilt caused by Ralstonia solanacearum being the most destructive disease. Our previous study showed that the disease resistance to bacterial soft rot is enhanced by Bacillus amyloliquefaciens strain PMB05. This ...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO-01-20-0026-R
更新日期:2020-12-01 00:00:00
abstract::Pantoea agglomerans strain E325, a commercially available antagonist for fire blight of apple and pear, was originally selected through screening based on suppression of Erwinia amylovora on flower stigmas, but specific mechanisms of antagonism were unknown. Bacterial modification of pH was evaluated as a possible mec...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO-98-10-1136
更新日期:2008-10-01 00:00:00
abstract::Xanthomonas oryzae pv. oryzicola causes bacterial leaf streak in rice, a destructive disease worldwide. In this study, six putative hypothetical secreted proteins, which were absent in X. oryzae pv. oryzae, were detected from X. oryzae pv. oryzicola strain BLS256. Disruption-based mutagenesis study revealed that one o...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO-02-12-0020-R
更新日期:2012-09-01 00:00:00
abstract::ND2710 is a hard red spring wheat line with a very high level of resistance to Fusarium head blight (FHB). It was selected from the progeny of a cross between ND2603 (an advanced breeding line derived from the Sumai 3/Wheaton cross) and Grandin (a spring wheat cultivar). The FHB resistance of ND2710 is presumably deri...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO-12-17-0392-R
更新日期:2018-08-01 00:00:00
abstract::ABSTRACT Mycosphaerella citri, the cause of citrus greasy spot, produces pseudothecia and ascospores in decomposing leaf litter on the grove floor. In laboratory studies, the effect of wetting and drying and temperature on the formation, maturation, and production of pseudothecia and ascospores was evaluated on mature...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO.2002.92.12.1267
更新日期:2002-12-01 00:00:00
abstract::Soybean vein necrosis-associated virus has been linked to an emerging soybean disease in the United States and Canada. Virus distribution and population structure in major growing areas were evaluated. Data were employed to design and develop sensitive detection protocols, able to detect all virus isolates available i...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO-12-12-0322-R
更新日期:2013-09-01 00:00:00
abstract::Beet powdery mildew incited by Erysiphe betae is a serious foliar fungal disease of worldwide distribution causing losses of up to 30%. In the present work, we searched for resistance in a germplasm collection of 184 genotypes of Beta vulgaris including fodder (51 genotypes), garden (60 genotypes), leaf (51 genotypes)...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO-99-4-0385
更新日期:2009-04-01 00:00:00
abstract::Deoxynivalenol (DON) concentrations in mature wheat grain are usually correlated with symptoms produced by Gibberella zeae infection. However, there have been numerous observations of unacceptably high DON in asymptomatic crops, which can lead to lower-than-expected milling reductions in DON. We conducted a field expe...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO-100-7-0719
更新日期:2010-07-01 00:00:00
abstract::The smut fungi form a large, diverse, and nonmonophyletic group of plant pathogens that have long served as both important pests of human agriculture and, also, as fertile organisms of scientific investigation. As modern techniques of molecular genetic analysis became available, many previously studied species that pr...
journal_title:Phytopathology
pub_type: 杂志文章,评审
doi:10.1094/PHYTO-02-16-0075-RVW
更新日期:2016-11-01 00:00:00
abstract::The evolutionary relationships among Verticillium dahliae vegetative compatibility (VCG) subgroups VCG1A, VCG1B, VCG2A, VCG2B, VCG4A, VCG4B, and VCG6 were investigated by parsimony analysis of amplified fragment length polymorphism (AFLP) fingerprints and sequences of six DNA regions (actin, beta-tubulin, calmodulin, ...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO-98-9-1019
更新日期:2008-09-01 00:00:00
abstract::Yellows diseases, caused by phytopathogenic bacteria of the genus Phytoplasma, are a major threat to grapevines worldwide. Because conventional applications against this pathogen are inefficient and disease management is highly challenging, the use of beneficial bacteria has been suggested as a biocontrol solution. A ...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO-06-17-0199-R
更新日期:2018-03-01 00:00:00
abstract::Parastagonospora nodorum is an important fungal pathogen that causes Septoria nodorum blotch (SNB) in wheat. This pathogen produces several necrotrophic effectors that act as virulence factors; three have been cloned, SnToxA, SnTox1, and SnTox3. In this study, P. nodorum and its sister species P. avenaria f. tritici (...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO-05-20-0207-R
更新日期:2020-12-01 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
pub_type: 杂志文章
doi:10.1094/PHYTO-04-17-0152-R
更新日期:2018-03-01 00:00:00
abstract::ABSTRACT Since 1991, dramatic changes have occurred in the genetic composition of populations of Phytophthora infestans in the United States. Clonal lineages recently introduced into the United States (US-7 and US-8) are more common now than the previously dominant lineage (US-1). To help determine why these changes o...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO.1997.87.9.973
更新日期:1997-09-01 00:00:00
abstract::Leaf rust, caused by Puccinia triticina, is one of the main fungal diseases limiting durum wheat production. This study aimed to characterize previously undescribed genes for leaf rust resistance in durum wheat. Six different resistant durum genotypes were crossed to two susceptible International Maize and Wheat Impro...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO-03-14-0065-R
更新日期:2014-12-01 00:00:00
abstract::Generating effective and stable strategies for resistance breeding requires an understanding of the genetics of host-pathogen interactions and the implications for pathogen dynamics and evolution. Setosphaeria turcica causes northern leaf blight (NLB), an important disease of maize for which major resistance genes hav...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO-01-17-0021-R
更新日期:2018-02-01 00:00:00
abstract::Succinate dehydrogenase inhibitors (SDHI) comprise a class of broad-spectrum fungicides utilized for management of diseases caused by phytopathogenic fungi. In many cases, reduced sensitivity to SDHI fungicides has been correlated with point mutations in the SdhB and SdhC target genes that encode components of the suc...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO-09-20-0421-R
更新日期:2020-11-03 00:00:00
abstract::ABSTRACT Resistance to Soybean mosaic virus (SMV) was identified in PI 88788 soybean, a germ plasm accession from China that is used widely as a source of resistance to soybean cyst nematode. Strains SMV-G1 through -G7 infected the inoculated leaves of PI 88788 but were not detected in upper, noninoculated trifoliolat...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO.2004.94.7.687
更新日期:2004-07-01 00:00:00
abstract::Stem nematode (Ditylenchus destructor) is one of most serious diseases that limit the productivity and quality of sweet potato (Ipomoea batatas), a root crop with worldwide importance for food security and nutrition improvement. Hence, there is a global demand for developing sweet potato varieties that are resistant t...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO-04-15-0087-R
更新日期:2015-11-01 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
pub_type: 杂志文章
doi:10.1094/PHYTO-02-17-0071-R
更新日期:2017-11-01 00:00:00
abstract::Triticum pathotype (MoT) of Magnaporthe oryzae (syn. Pyricularia oryzae) causes wheat blast, which has recently spread to Asia. To assess the potential risk of wheat blast in rice-wheat growing regions, we investigated the pathogenicity of 14 isolates of P. oryzae on 32 wheat cultivars, among which MoO isolates were c...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO-10-20-0470-R
更新日期:2021-01-20 00:00:00
abstract::ABSTRACT Diseases of cacao, Theobroma cacao, account for losses of more than 30% of the potential crop. These losses have caused a steady decline in production and a reduction in bean quality in almost all the cacao-producing areas in the world, especially in small-holder farms in Latin America and West Africa. The mo...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO-97-12-1658
更新日期:2007-12-01 00:00:00
abstract::ABSTRACT Apple fruit tissues infected with Botryosphaeria dothidea were examined by transmission electron microscopy using susceptible cv. Fuji and resistant cv. Jonathan. Immature (green) and mature (red) fruits of cv. Fuji with restricted or expanding lesions were also examined to reveal subcellular characteristics ...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO.2001.91.2.165
更新日期:2001-02-01 00:00:00
abstract::Previous research has shown that Botrytis cinerea isolates with resistance to multiple chemical classes of fungicides exist in eastern strawberry fields. In this study, the fungicide resistance profiles of 2,130 isolates from flowers of commercial strawberry fields located in multiple states was determined over four c...
journal_title:Phytopathology
pub_type: 杂志文章
doi:10.1094/PHYTO-04-16-0161-R
更新日期:2016-12-01 00:00:00