Showing papers in "Physiological and Molecular Plant Pathology in 2013"

TL;DR: It is revealed that sustained and timely induction and accumulation of these defense enzymes and PR-proteins enhance the resistance in groundnut against leafminer insect and collar rot disease.

TL;DR: Peroxidase might be involved in phenolics production, as an effective resistance mechanism in the pathosystem, after resistance interactions of four tomato cultivars to five Rhizoctonia solani isolates.

TL;DR: Gene expression analysis conducted at 72 h post inoculation via TOM2 microarray revealed regulation of 204 and 126 genes in genotypes King Kong 2 and L390, respectively, with their majority classified into the categories defense-related, signal transduction and transcription.

TL;DR: Real-time PCR is an effective method to quantify mRNA levels, but requires validated reference genes for data normalisation, and the GeNorm-Plus algorithm was used to examine the expression stability of six candidate reference genes in resistant Avocet Yr1 wheat infected with Puccinia triticina, PuCCinia striiformis and Puccinian graminis f.sp.

TL;DR: Findings show that resistance of melon plants against C. lagenarium is associated with the rapid, localised and intense release of reactive oxygen, resulting in altered cellular redox status, cell wall strengthening, accumulation of antifungal phenolic compounds and pathogenesis-related proteins.

TL;DR: Intense phenolic synthesis was characteristic for the bordering zone between the healthy and infected plant tissue resulting in higher total phenolic content which might hinder the fungus to spread from the infected cells into the healthy tissue, suggesting a lesser role of apigenin glycosides in pepper plant defence against the Colletotrichum fungus.

TL;DR: A dual effect of SPS4 biological activity on TMV infection by affecting of virus accumulation/infectivity and enhancing locally plant immunity against TMV is indicated.

TL;DR: In this paper, a transcriptome analysis of tomato ( Solanum lycopersicum ) stem tissue was performed to elucidate gene expression analysis in plant treated with silicon and/or rhizobacteria strain Bacillus pumilis following inoculation with Ralstonia solanacearum strain ToUdk2.

TL;DR: Taken together at the whole plant level, HLB infection induces fewer disruptive anatomical changes in rough lemon than in sweet orange, and the absence of obvious changes in the rough lemon root system is suggested to be critical for sustaining plant growth after infection, and may contribute greatly to its HLB tolerance.

TL;DR: The results revealed that promotion of photosynthetic efficiency was probably mainly due to effects on non-stomatal processes by U. esculenta infection, which induced a decreased plant height, but significantly increased above-ground biomass production as compared to control plants.

TL;DR: It is indicated that Foatf1 could be necessary to induce the full virulence of Foc 4 by regulating the transcription of catalase to impair plant defenses mediated by reactive oxygen species.

TL;DR: Trichothecene production analyses indicated that MBC resistance increased 3-AcDON yield and percentage, especially site-directed mutants at codon 167 in the β2-tubulin gene.

TL;DR: The current understanding on the mechanism of plant–microbe interaction is summarized and the strategies for disease-resistance breeding of crop cultivars are discussed.

TL;DR: Changes in Mr gene expression patterns and levels of specific metabolites in necrotic sporulating pods 60 DAI indicated that the glyoxylate cycle of Mr was up regulated during the shift from biotrophic to necrotrophic phases of the disease cycle.

TL;DR: The objective of this work was to further characterize two genes isolated from the Chilean strawberry species which were previously reported as over expressed after Botrytis infection, suggesting these genes could be implicated in the pathogen response in a tissue specific manner.

TL;DR: High genetic variability present in M.grisea isolates calls for the continuous monitoring of M. grisea populations anticipating blast resistance breakdown in finger millet cultivars grown in India.

TL;DR: Findings indicate that Pst infection can upregulate genes involved in photosynthesis to promote the photosynthetic rate and ultimately induce sucrose accumulation in infected wheat leaves.

TL;DR: Sequence alignment and phylogenetic analysis indicate that CtNH1 is closely-related to the Arabidopsis NPR1 gene and its orthologs from rice, grapevine, and cacao, suggesting that Ct NH1 is orthologous to NPR1.

TL;DR: This study is the first to report a concanavalin A-like lectin/glucanase involved in plant defense against pathogen infection, and it is found that some PR protein genes kept high expression levels longer in the adult plants than in seedlings after Pst infection.

TL;DR: The potential induction of phenolics in response to Xf infection did not affect phenolic levels as much as phenology or cultivar, and Merlot grapevines generally possessed greater Phenolic levels than Chardonnay or Rubired, and also had greater symptoms than Rubired.

TL;DR: Results show that cmps are commonly secreted by fungal pathogens of Brassicaceae plants and suggest that interfering with fungalysin cmp activity may improve plant resistance to multiple fungal diseases.

TL;DR: Cv Sardes was found out to be relatively tolerant with sustainable growth performance, better leaf water status and lower lipid peroxidation levels under this condition; this relative tolerance could be related to the fine tuning of the activities of the antioxidative enzymes and proline levels.

TL;DR: Higher resistance of Arabidopsis plants growing in an olive marc compost against Botrytis cinerea is found than in plants grown in perlite, suggesting the need for SA signalling in compost-induced resistance.

TL;DR: Beta-1,3-glucanase and chitinase were found only in pathogen-challenged plants of the resistance variety compared with the control plants at 6, 12, 24, 48 and 72 hpi, but shown by qRT-PCR beta-1-3- Glucanases were expressed both in the resistance and susceptible variety in the roots of TR 4-infected bananas.

TL;DR: This finding suggests that heat shock induces strawberry resistance against Colletotrichum crown rot and assumes that mechanisms other than SAR probably mediated the protective effect of heat shock-induced resistance.

TL;DR: It was found that the treatment of heat shock on the first leaves reduced lesions of gray mold on the untreated second leaves and it was assumed that SAR occurred in HSIR, however it was not as the first mechanism.

TL;DR: Structural and phylogenetic analyses grouped CzR1 within the non-TIR (homology to Toll/interleukin-1 receptors) subclass of NBS-LRR R-genes and semi quantitative RT-PCR analysis showed constitutive expression of CZR1 which gets significantly upregulated in response to infection by different strains of P. aphanidermatum.

TL;DR: The differentially expressed RGCLc28 of DSG-6 is predicted to have strong association with the resistance trait against the leaf curl and mosaic disease in sponge gourd and may serve as important genomic resource for candidate gene discovery.

TL;DR: BABA treatment led to proper balance of oxidant & antioxidants suitable for expression of resistance resulting in curtail of pathogen ingress during early stages of colonization.

TL;DR: In this article, suppression subtractive hybridization (SSH) library was constructed to study the genes involved in response to fusarium wilt disease in banana, and the expression pattern of selected eight defense related genes namely peroxidase, glutaredoxin, polyphenol oxidase, glutamate synthase, S-adenosyl methionine synthetase, 14-3-3, heat shock protein, mannose binding lectin were analyzed through real-time PCR.