Plant Diseases

• 

  Subject Areas on Research

  • A cis-acting sequence homologous to the yeast filamentation and invasion response element regulates expression of a pectinase gene from the bean pathogen Colletotrichum lindemuthianum. 
  • A gain-of-function mutation in a plant disease resistance gene leads to constitutive activation of downstream signal transduction pathways in suppressor of npr1-1, constitutive 1. 
  • A genomic approach to identify regulatory nodes in the transcriptional network of systemic acquired resistance in plants. 
  • A kiss of death--proteasome-mediated membrane fusion and programmed cell death in plant defense against bacterial infection. 
  • A noncanonical role for the CKI-RB-E2F cell-cycle signaling pathway in plant effector-triggered immunity. 
  • A novel gene, ROA, is required for normal morphogenesis and discharge of ascospores in Gibberella zeae. 
  • Activation of an EDS1-mediated R-gene pathway in the snc1 mutant leads to constitutive, NPR1-independent pathogen resistance. 
  • An Arabidopsis thaliana lipoxygenase gene can be induced by pathogens, abscisic acid, and methyl jasmonate. 
  • Arabidopsis BRCA2 and RAD51 proteins are specifically involved in defense gene transcription during plant immune responses. 
  • Arabidopsis SNI1 and RAD51D regulate both gene transcription and DNA recombination during the defense response. 
  • Battle for survival: plants and their allies and enemies. 
  • Biotic interactions. Genomics and coevolution. 
  • Cloning, characterization, and transcription of three laccase genes from Gaeumannomyces graminis var. tritici, the take-all fungus. 
  • Co-evolution and plant resistance to natural enemies. 
  • Composting is an effective treatment option for sanitization of Phytophthora ramorum-infected plant material. 
  • Constitutive disease resistance requires EDS1 in the Arabidopsis mutants cpr1 and cpr6 and is partially EDS1-dependent in cpr5. 
  • Constitutive salicylic acid-dependent signaling in cpr1 and cpr6 mutants requires PAD4. 
  • Coronatine promotes Pseudomonas syringae virulence in plants by activating a signaling cascade that inhibits salicylic acid accumulation. 
  • DNA repair proteins are directly involved in regulation of gene expression during plant immune response. 
  • Different transcript patterns in response to specialist and generalist herbivores in the wild Arabidopsis relative Boechera divaricarpa. 
  • Differential induction of 3-deoxy-D-arabino-heptulosonate 7-phosphate synthase genes in Arabidopsis thaliana by wounding and pathogenic attack. 
  • DsbB is required for the pathogenesis process of Xanthomonas campestris pv. campestris. 
  • Ecological approaches and the development of "truly integrated" pest management. 
  • Environmental variation mediates the deleterious effects of Coleosporium ipomoeae on Ipomoea purpurea. 
  • Evaluating the impacts of multiple generalist fungal pathogens on temperate tree seedling survival. 
  • Evidence for regulation of resistance in Arabidopsis to Egyptian cotton worm by salicylic and jasmonic acid signaling pathways. 
  • Evolution of host range in Coleosporium ipomoeae, a plant pathogen with multiple hosts. 
  • Fitness benefits of systemic acquired resistance during Hyaloperonospora parasitica infection in Arabidopsis thaliana. 
  • Functional characterization of a Nudix hydrolase AtNUDX8 upon pathogen attack indicates a positive role in plant immune responses. 
  • Fungal horizons: the Asilomar Fungal Genetics Conference 2007. 
  • Fungal pathogenesis: gene clusters unveiled as secrets within the Ustilago maydis code. 
  • Genetic dissection of systemic acquired resistance. 
  • Genetic interactions of TGA transcription factors in the regulation of pathogenesis-related genes and disease resistance in Arabidopsis. 
  • Genetics and evolution of insect resistance in Arabidopsis. 
  • Genetics of resistance to the rust fungus Coleosporium ipomoeae in three species of morning glory (Ipomoea). 
  • Hemlock woolly adelgid (Adelges tsugae) infestation affects water and carbon relations of eastern hemlock (Tsuga canadensis) and Carolina hemlock (Tsuga caroliniana). 
  • How do plants achieve immunity? Defence without specialized immune cells. 
  • Identification of regions of the Beet mild curly top virus (family Geminiviridae) capsid protein involved in systemic infection, virion formation and leafhopper transmission. 
  • Induction of Arabidopsis defense genes by virulent and avirulent Pseudomonas syringae strains and by a cloned avirulence gene. 
  • Loop mediated isothermal amplification (LAMP) assay for detection of coconut root wilt disease and arecanut yellow leaf disease phytoplasma. 
  • Major-gene resistance to the rust pathogen Coleosporium ipomoeae is common in natural populations of Ipomoea purpurea. 
  • Making sense of hormone crosstalk during plant immune responses. 
  • Mapping of QTL for resistance against the crucifer specialist herbivore Pieris brassicae in a new Arabidopsis inbred line population, Da(1)-12 x Ei-2. 
  • Molecular characterization of CLPT1, a SEC4-like Rab/GTPase of the phytopathogenic fungus Colletotrichum lindemuthianum which is regulated by the carbon source. 
  • Morning glory as a powerful model in ecological genomics: tracing adaptation through both natural and artificial selection. 
  • NPR1 modulates cross-talk between salicylate- and jasmonate-dependent defense pathways through a novel function in the cytosol. 
  • Natural selection on a polymorphic disease-resistance locus in Ipomoea purpurea. 
  • Parallels in intercellular communication in oomycete and fungal pathogens of plants and humans. 
  • Plant evolutionary ecology. 
  • Plant immunity requires conformational changes [corrected] of NPR1 via S-nitrosylation and thioredoxins. 
  • Post-translational regulation of plant immunity. 
  • Putting plant resistance traits on the map: a test of the idea that plants are better defended at lower latitudes. 
  • Rapid evolution in plant chitinases: molecular targets of selection in plant-pathogen coevolution. 
  • Receptor quality control in the endoplasmic reticulum for plant innate immunity. 
  • Reconstructing genome evolution in historic samples of the Irish potato famine pathogen. 
  • Redox rhythm reinforces the circadian clock to gate immune response. 
  • Regulation of tradeoffs between plant defenses against pathogens with different lifestyles. 
  • Salicylic acid inhibits pathogen growth in plants through repression of the auxin signaling pathway. 
  • Science in Africa: The wheat stalker. 
  • Spatial and temporal regulation of biosynthesis of the plant immune signal salicylic acid. 
  • Systemic acquired resistance: turning local infection into global defense. 
  • The Arabidopsis NPR1 gene that controls systemic acquired resistance encodes a novel protein containing ankyrin repeats. 
  • The CAT(2) Comes Back. 
  • The calmodulin-binding transcription factor SIGNAL RESPONSIVE1 is a novel regulator of glucosinolate metabolism and herbivory tolerance in Arabidopsis. 
  • The evolution of tolerance to deer herbivory: modifications caused by the abundance of insect herbivores. 
  • The human fungal pathogen Cryptococcus can complete its sexual cycle during a pathogenic association with plants. 
  • Timing of plant immune responses by a central circadian regulator. 
  • URF13, a ligand-gated, pore-forming receptor for T-toxin in the inner membrane of cms-T mitochondria. 
  • Uncoupling PR gene expression from NPR1 and bacterial resistance: characterization of the dominant Arabidopsis cpr6-1 mutant. 
  • uORF-mediated translation allows engineered plant disease resistance without fitness costs. 
• 

  Keywords of People

  • Mitchell-Olds, Thomas, Newman Ivey White Professor of Biology in Trinity College of Arts and Sciences, Biology