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Transient Overexpression of the Pepper WRKY2 Gene in Nicotiana benthamiana Markedly Delays the Systemic Necrosis Caused by Tobacco Mosaic Virus Open
The role of WRKY transcription factor proteins in plant defense reactions against fungal and bacterial pathogens is well studied, but less information is available about plant–virus interactions. We observed the rapid and strong activation…
Changes in RNase activities and in expression of two RNase genes in powdery mildew infected barley, wheat and Brachypodium distachyon leaves Open
Changes in RNase activities were investigated in extracts from barley near isogenic lines without or with various powdery mildew resistance genes and were compared to changes in wheat and Brachypodium distachyon leaves after powdery mildew…
Heat Pre-Treatment Modified Host and Non-Host Interactions of Powdery Mildew with Barley Brassinosteroid Mutants and Wild Types Open
High temperatures associated with climate change may increase the severity of plant diseases. This study investigated the effect of heat shock treatment on host and non-host barley powdery mildew interactions using brassinosteroid (BR) mut…
Enhanced Resistance to Viruses in <i>Nicotiana edwardsonii</i> ‘Columbia’ Is Dependent on Salicylic Acid, Correlates with High Glutathione Levels, and Extends to Plant-Pathogenic Bacteria and Abiotic Stress Open
Our earlier research showed that an interspecific tobacco hybrid ( Nicotiana edwardsonii ‘Columbia’ [NEC]) displays elevated levels of salicylic acid (SA) and enhanced resistance to localized necrotic symptoms (hypersensitive response [HR]…
View article: Redox and Hormonal Changes in the Transcriptome of Grape (Vitis vinifera) Berries during Natural Noble Rot Development
Redox and Hormonal Changes in the Transcriptome of Grape (Vitis vinifera) Berries during Natural Noble Rot Development Open
Noble rot is a favorable form of the interaction between grape (Vitis spp.) berries and the phytopathogenic fungus Botrytis cinerea. The transcriptome pattern of grapevine cells subject to natural noble rot development in the historic Hung…
Transcriptome profiling of pepper leaves by RNA-Seq during an incompatible and a compatible pepper-tobamovirus interaction Open
Upon virus infections, the rapid and comprehensive transcriptional reprogramming in host plant cells is critical to ward off virus attack. To uncover genes and defense pathways that are associated with virus resistance, we carried out the …
The Versatile Roles of Sulfur-Containing Biomolecules in Plant Defense—A Road to Disease Resistance Open
Sulfur (S) is an essential plant macronutrient and the pivotal role of sulfur compounds in plant disease resistance has become obvious in recent decades. This review attempts to recapitulate results on the various functions of sulfur-conta…
Powdery Mildew-Induced Hormonal and Photosynthetic Changes in Barley Near Isogenic Lines Carrying Various Resistant Genes Open
The present work focused on the characterization of some physiological mechanisms activated upon powdery mildew inoculation of the susceptible barley cultivar Ingrid and its near-isogenic lines (NILs) carrying various resistant genes (Mla,…
Glutathione Can Compensate for Salicylic Acid Deficiency in Tobacco to Maintain Resistance to Tobacco Mosaic Virus Open
Earlier studies showed that the artificial elevation of endogenous glutathione (GSH) contents can markedly increase the resistance of plants against different viruses. On the other hand, salicylic acid (SA)-deficient NahG plants display en…
Artificial elevation of glutathione contents in salicylic acid‐deficient tobacco (<i>Nicotiana tabacum</i> cv. Xanthi <i>NahG</i>) reduces susceptibility to the powdery mildew pathogen <i>Euoidium longipes</i> Open
The effects of elevated glutathione levels on defence responses to powdery mildew ( Euoidium longipes ) were investigated in a salicylic acid‐deficient tobacco ( Nicotiana tabacum cv. Xanthi NahG ) and wild‐type cv. Xanthi plants, where sa…
Glutathione S-Transferase Enzymes in Plant-Pathogen Interactions Open
Plant glutathione S-transferases (GSTs) are ubiquitous and multifunctional enzymes encoded by large gene families. A characteristic feature of GST genes is their high inducibility by a wide range of stress conditions including biotic stres…
Contribution of cell wall peroxidase‐ and NADPH oxidase‐derived reactive oxygen species to <i>Alternaria brassicicola</i> ‐induced oxidative burst in <i>Arabidopsis</i> Open
Summary Cell wall peroxidases and plasma membrane‐localized NADPH oxidases are considered to be the main sources of the apoplastic oxidative burst in plants attacked by microbial pathogens. In spite of this established doctrine, approaches…
Comparative studies of compatible and incompatible pepper-Tobamovirus interactions and the evaluation of effects of 24-epibrassinolide Open
The aim of study was to gain a deeper knowledge about local and systemic changes in photosynthetic processes and sugar production of pepper infected by Obuda pepper virus (ObPV) and Pepper mild mottle virus (PMMoV). PSII efficiency, reflec…
Evaluation of TMV Lesion Formation and Timing of Signal Transduction during Induction of Systemic Acquired Resistance (SAR) in Tobacco with a Computer-Assisted Method Open
Nicotiana tabacum L. cv. Xanthi nc plants were inoculated with tobacco mosaic virus (TMV) in order to develop a method for evaluation of lesion size and its distribution characteristics during the induction of systemic acquired resistance …