Abstract:
:SUMMARY The hxc1 mutant was identified by screening an EMS (ethylmethane sulphonate) mutagenized population of Arabidopsis Col-0 plants for an altered hypersensitive response (HR), after spray inoculation with an HR-inducing isolate of Xanthomonas campestris pv. campestris (Xcc) (strain 147). The hxc1 mutant shows a susceptible phenotype several days after initiation of the interaction with the avirulent strain. This macroscopically observed phenotype was confirmed by measurement of in planta bacterial growth and by microscopical analysis. Interestingly, the hxc1 mutation acts very specifically. Hxc1 displays a pathophenotype identical to that observed in the wild-type with several extensively characterized avirulent and virulent bacteria, except in response to Pseudomonas syringae pv. tomato strain DC3000/avrRpm1, for which a partial loss of resistance was observed. Finally, the mutation causes an attenuation of expression of several defence markers regulated through different signalling pathways. Together, these data underline the complexity of this novel defence mutant, and support the hypothesis of a mutation affecting a key component acting during the first steps of the plant defence response leading to resistance to Xcc147 and Pseudomonas syringae pv. tomato containing the avr gene, avrRpm1.
journal_name
Mol Plant Patholjournal_title
Molecular plant pathologyauthors
Lummerzheim M,Kroj T,Ferreira M,Tronchet M,Godard F,VAN Montagu M,Roby Ddoi
10.1111/j.1364-3703.2004.00245.xsubject
Has Abstractpub_date
2004-09-01 00:00:00pages
453-64issue
5eissn
1464-6722issn
1364-3703pii
MPP245journal_volume
5pub_type
杂志文章abstract::Genetic and genomics tools to characterize host-pathogen interactions are disproportionately directed to the host because of the focus on resistance. However, understanding the genetics of pathogen virulence is equally important and has been limited by the high cost of de novo genotyping of species with limited marker...
journal_title:Molecular plant pathology
pub_type: 杂志文章
doi:10.1111/mpp.12214
更新日期:2015-08-01 00:00:00
abstract::Plant pathology has a long-standing tradition of classifying microbes as pathogens, endophytes or saprophytes. Lifestyles of pathogens are categorized as biotrophic, necrotrophic or hemibiotrophic. Botrytis species are considered by many to be archetypal examples of necrotrophic fungi, with B. cinerea being the most e...
journal_title:Molecular plant pathology
pub_type: 杂志文章,评审
doi:10.1111/mpp.12148
更新日期:2014-12-01 00:00:00
abstract::Plant viruses often harm their hosts, which have developed mechanisms to prevent or minimize the effects of virus infection. Resistance and tolerance are the two main plant defences to pathogens. Although resistance to plant viruses has been studied extensively, tolerance has received much less attention. Theory predi...
journal_title:Molecular plant pathology
pub_type: 杂志文章
doi:10.1111/mpp.12629
更新日期:2018-06-01 00:00:00
abstract::The two-component signal transduction system PhoBR regulates the adaptation to phosphate limitation and the virulence of many animal bacterial pathogens. However, PhoBR in phytopathogens has rarely been investigated. In this study, we found that PhoBR in Xanthomonas oryzae pv. oryzae (Xoo), the pathogen of rice bacter...
journal_title:Molecular plant pathology
pub_type: 杂志文章
doi:10.1111/mpp.12680
更新日期:2018-09-01 00:00:00
abstract::LuxR-type regulators regulate many bacterial processes and play important roles in bacterial motility and virulence. Acidovorax citrulli is a seedborne bacterial pathogen responsible for bacterial fruit blotch, which causes great losses in melon and watermelon worldwide. We identified a LuxR-type, nonquorum sensing-re...
journal_title:Molecular plant pathology
pub_type: 杂志文章
doi:10.1111/mpp.12910
更新日期:2020-04-01 00:00:00
abstract::Verticillium dahliae is a soil-borne, hemibiotrophic phytopathogenic fungus that causes wilting in crop plants. Here, we constructed a random insertional mutant library using Agrobacterium tumefaciens-mediated transformation to study the pathogenicity and regulatory mechanisms of V. dahliae. The fungal-specific transc...
journal_title:Molecular plant pathology
pub_type: 杂志文章
doi:10.1111/mpp.12367
更新日期:2016-12-01 00:00:00
abstract::Triggering of defences by microbes has mainly been investigated using single elicitors or microbe-associated molecular patterns (MAMPs), but MAMPs are released in planta as complex mixtures together with endogenous oligogalacturonan (OGA) elicitor. We investigated the early responses in Arabidopsis of calcium influx a...
journal_title:Molecular plant pathology
pub_type: 杂志文章
doi:10.1111/j.1364-3703.2009.00537.x
更新日期:2009-05-01 00:00:00
abstract::Powdery mildew is a common and widespread plant disease of considerable agronomic relevance. It is caused by obligate biotrophic fungal pathogens which, in most cases, epiphytically colonize aboveground plant tissues. The disease has been typically studied as a binary interaction of the fungal pathogen with its plant ...
journal_title:Molecular plant pathology
pub_type: 杂志文章,评审
doi:10.1111/mpp.12771
更新日期:2019-04-01 00:00:00
abstract::Cloning the first avirulence (avr) gene has led not only to a deeper understanding of gene-for-gene interactions in plant disease, but also to fundamental insights into the suppression of basal defences against microbial attack. This article (focusing on Pseudomonas syringae) charts the development of ideas and resear...
journal_title:Molecular plant pathology
pub_type: 杂志文章,评审
doi:10.1111/j.1364-3703.2009.00576.x
更新日期:2009-11-01 00:00:00
abstract::The potato cyst nematodes (PCNs) Globodera pallida and Globodera rostochiensis are important parasites of potato. PCNs undergo complex biotrophic interactions with their hosts that involve gene expression changes in both the nematode and the host plant. The aim of this study was to determine key genes that are differe...
journal_title:Molecular plant pathology
pub_type: 杂志文章
doi:10.1111/j.1364-3703.2012.00821.x
更新日期:2012-12-01 00:00:00
abstract::SUMMARY Recent studies have shown that resistance in several dicotyledonous plants to viruses in the genus Potyvirus is controlled by recessive alleles of the plant translation initiation factor eIF4E or eIF(iso)4E genes. Here we provide evidence that the barley rym4 gene locus, controlling immunity to viruses in the ...
journal_title:Molecular plant pathology
pub_type: 杂志文章
doi:10.1111/j.1364-3703.2005.00294.x
更新日期:2005-07-01 00:00:00
abstract::For several years, researchers working on the plant pathogen Botrytis cinerea and a number of other related fungi have routinely used the pLOB1 vector system, based on hygromycin resistance, under the control of the Aspergillus nidulans oliC promoter and what was reported to be the beta-tubulin (tubA) terminator. Rece...
journal_title:Molecular plant pathology
pub_type: 杂志文章
doi:10.1111/j.1364-3703.2010.00632.x
更新日期:2010-09-01 00:00:00
abstract::It is increasingly clear that chloroplasts play a central role in plant stress responses. Upon activation of immune responses, chloroplasts are the source of multiple defensive signals, including reactive oxygen species (ROS). Intriguingly, it has been described that chloroplasts establish physical contact with the nu...
journal_title:Molecular plant pathology
pub_type: 杂志文章
doi:10.1111/mpp.12840
更新日期:2019-09-01 00:00:00
abstract::Sclerotinia sclerotiorum is a devastating necrotrophic fungal pathogen that infects over 400 species of plants worldwide. Reactive oxygen species (ROS) modulations are critical for the pathogenic development of S. sclerotiorum. The fungus applies enzymatic and non-enzymatic antioxidants to cope with the oxidative stre...
journal_title:Molecular plant pathology
pub_type: 杂志文章
doi:10.1111/mpp.12801
更新日期:2019-07-01 00:00:00
abstract::Flower malformation represented by phyllody is a common symptom of phytoplasma infection induced by a novel family of phytoplasma effectors called phyllogens. Despite the accumulation of functional and structural phyllogen information, the molecular mechanisms of phyllody have not yet been integrated with their evolut...
journal_title:Molecular plant pathology
pub_type: 杂志文章
doi:10.1111/mpp.12981
更新日期:2020-10-01 00:00:00
abstract::Histone acetylation has been established as a principal epigenetic regulatory mechanism in eukaryotes. Sas3, a histone acetyltransferase belonging to the largest family of acetyltransferase, MYST, is the catalytic subunit of a conserved histone acetyltransferase complex. To date, the functions of Sas3 and its ortholog...
journal_title:Molecular plant pathology
pub_type: 杂志文章
doi:10.1111/mpp.12856
更新日期:2019-11-01 00:00:00
abstract::Piriformospora indica is a basidiomycete of the order Sebacinales, representing a model for the study of mutualistic symbiosis and, beyond that, the plant immune system. The fungus colonizes the roots of a wide range of vascular plants, increasing their growth, seed yield and adaptation to abiotic and biotic stresses....
journal_title:Molecular plant pathology
pub_type: 杂志文章,评审
doi:10.1111/j.1364-3703.2011.00764.x
更新日期:2012-06-01 00:00:00
abstract::An outbreak of the potato late blight pathogen Phytophthora infestans in Denmark was characterized in order to resolve the population structure and determine to what extent sexual reproduction was occurring. A standard set of microsatellite simple sequence repeats (SSRs) and single nucleotide polymorphism (SNP) marker...
journal_title:Molecular plant pathology
pub_type: 杂志文章
doi:10.1111/mpp.12819
更新日期:2019-08-01 00:00:00
abstract::Erwinia amylovora is the causal agent of fire blight, one of the most devastating diseases of apple and pear. Erwinia amylovora is thought to have originated in North America and has now spread to at least 50 countries worldwide. An understanding of the diversity of the pathogen population and the transmission to diff...
journal_title:Molecular plant pathology
pub_type: 杂志文章
doi:10.1111/mpp.12647
更新日期:2018-07-01 00:00:00
abstract::The tangerine pathotype of the ascomycete fungus Alternaria alternata is the causal agent of citrus brown spot, which can result in significant losses of both yield and marketability for tangerines worldwide. A conditionally dispensable chromosome (CDC), which harbours the host-selective ACT toxin gene cluster, is req...
journal_title:Molecular plant pathology
pub_type: 杂志文章
doi:10.1111/mpp.12848
更新日期:2019-10-01 00:00:00
abstract::SUMMARY Two of the currently widely accepted species in the section Nigrescentia of the genus Verticillium are major plant pathogens inducing wilt diseases in a wide range of mainly dicotyledonous hosts. Three species closely related to these two are less important wilt pathogens and soil saprophytes. A sixth species,...
journal_title:Molecular plant pathology
pub_type: 杂志文章
doi:10.1046/j.1364-3703.2003.00172.x
更新日期:2003-07-01 00:00:00
abstract::In all fungi studied so far, mitogen-activated protein (MAP) kinase cascades serve as central signalling complexes that are involved in various aspects of growth, stress response and infection. In this work, putative components of the yeast Fus3/Kss1-type MAP kinase cascade and the putative downstream transcription fa...
journal_title:Molecular plant pathology
pub_type: 杂志文章
doi:10.1111/j.1364-3703.2009.00579.x
更新日期:2010-01-01 00:00:00
abstract::Erwinia amylovora is the causal agent of the fire blight disease in some plants of the Rosaceae family. The non-host plant Arabidopsis serves as a powerful system for the dissection of mechanisms of resistance to E. amylovora. Although not yet known to mount gene-for-gene resistance to E. amylovora, we found that Arab...
journal_title:Molecular plant pathology
pub_type: 杂志文章
doi:10.1111/mpp.12588
更新日期:2018-05-01 00:00:00
abstract::Systemic acquired resistance (SAR) is a potent plant defence system that, in response to a first contact with a plant pathogen, prepares the whole plant for subsequent attacks, so that it becomes more resistant to the same and to other pathogens. BcSpl1, a cerato-platanin family protein abundantly secreted by Botrytis...
journal_title:Molecular plant pathology
pub_type: 杂志文章
doi:10.1111/j.1364-3703.2012.00842.x
更新日期:2013-02-01 00:00:00
abstract::Summary There is evidence that the necrotrophic fungal pathogen Botrytis cinerea is exposed to oxidative processes within plant tissues. The pathogen itself also generates active oxygen species and H(2)O(2) as pathogenicity factors. Our aim was to study how the pathogen may defend itself against cellular damage caused...
journal_title:Molecular plant pathology
pub_type: 杂志文章
doi:10.1046/j.1364-3703.2002.00114.x
更新日期:2002-07-01 00:00:00
abstract::Recently, Tomato spotted wilt virus (TSWV) nonstructural protein NSs has been identified unambiguously as an avirulence (Avr) determinant for Tomato spotted wilt (Tsw)-based resistance. The observation that NSs from two natural resistance-breaking isolates had lost RNA silencing suppressor (RSS) activity and Avr sugge...
journal_title:Molecular plant pathology
pub_type: 杂志文章
doi:10.1111/mpp.12082
更新日期:2014-02-01 00:00:00
abstract::Black spot disease, which is caused by the ascomycete Diplocarpon rosae, is the most severe disease in field-grown roses in temperate regions and has been distributed worldwide, probably together with commercial cultivars. Here, we present data indicating that muRdr1A is the active Rdr1 gene, a single-dominant TIR-NBS...
journal_title:Molecular plant pathology
pub_type: 杂志文章
doi:10.1111/mpp.12589
更新日期:2018-05-01 00:00:00
abstract::Abstract To identify virulence genes of P. syringae pv. tomato strain DC3000 we screened for mutants with reduced virulence on its plant hosts, Arabidopsis thaliana and tomato. We isolated a Tn5-insertion mutant that exhibited reduced virulence on both hosts. Further characterization showed that this mutant carried a ...
journal_title:Molecular plant pathology
pub_type: 杂志文章
doi:10.1046/j.1364-3703.2000.00016.x
更新日期:2000-03-01 00:00:00
abstract::SUMMARY The infection of plants by pathogenic microbes and the subsequent establishment of disease involves substantial changes in the biochemistry and physiology of both partners. Analysis of genes that are expressed during these interactions represents a powerful strategy to obtain insights into the molecular events...
journal_title:Molecular plant pathology
pub_type: 杂志文章
doi:10.1111/j.1364-3703.2004.00219.x
更新日期:2004-05-01 00:00:00
abstract::The identification of chemical compounds that prevent and combat bacterial diseases is fundamental for crop production. Bacterial virulence inhibitors are a promising alternative to classical control treatments, because they have a low environmental impact and are less likely to generate bacterial resistance. The majo...
journal_title:Molecular plant pathology
pub_type: 杂志文章
doi:10.1111/mpp.12736
更新日期:2019-01-01 00:00:00