A5102858236- Plant Disease Management Techniques
- Plant Pathogens and Fungal Diseases
- Plant Virus Research Studies
- RNA and protein synthesis mechanisms
- Bacterial Genetics and Biotechnology
- Nematode management and characterization studies
- Plant Pathogens and Resistance
- Powdery Mildew Fungal Diseases
- Plant tissue culture and regeneration
- RNA Research and Splicing
- Plant Disease Resistance and Genetics
- Bacteriophages and microbial interactions
- Enzyme-mediated dye degradation
- Plant-Microbe Interactions and Immunity
- Plant Pathogenic Bacteria Studies
- Advances in Cucurbitaceae Research
- Growth and nutrition in plants
- Fungal Biology and Applications
- RNA modifications and cancer
- Mycorrhizal Fungi and Plant Interactions
- Ecology and Conservation Studies
- Plant Micronutrient Interactions and Effects
- Agriculture, Soil, Plant Science
- Plant and Fungal Interactions Research
- Chromium effects and bioremediation
Agricultural Research Organization
2008-2022
Hebrew University of Jerusalem
1978-2022
Technion – Israel Institute of Technology
2016-2019
Arava Institute
2016
Mayo Clinic in Florida
2008
University of Chicago
2008
Atlanta Gastroenterology Associates
2008
University of Wisconsin–Madison
2002-2006
Highland Community College - Illinois
2006
Due to limited availability of arable land and high market demand for off-season vegetables, cucurbits (plants in the family Cucurbitaceae) are continuously cultivated under unfavorable conditions some countries. These include environments that too cold, wet, or dry, cool low-light winter greenhouses. Successive cropping can increase salinity, incidence cucurbit pests, soilborne diseases like fusarium wilt caused by Fusarium spp. cause various physiological pathological disorders leading...
SummarySuccess in grafting depends on the identification of a compatible rootstock (RS) that promotes rapid formation vascular connections between RS and scion, resumption root shoot growth. In this study, we used incompatible Cucurbita rootstocks, with melon (Cucumis melo L. 'Arava') to identify physiological biochemical factors scion-RS interface could be associated graft compatibility. Anatomical characterisation showed regeneration differentiation elements was similar, at first, both...
Fungal pathogens are a significant threat to crops worldwide. The soil fungus, Magnaporthiopsis maydis, severely affects sensitive maize hybrids by causing the rapid wilting of plants at maturity stage. Similarly, Macrophomina phaseolina, develops in variety host plants, which leads rot and plant mortality. presence both together diseased cotton Israel suggests possible interactions between them. Here, these relationships were tested series experiments accompanied real-time PCR tracking...
It is often proposed that brown rot basidiomycetes use extracellular reactive oxygen species (ROS) to accomplish the initial depolymerization of cellulose in wood, but little evidence has been presented show fungi produce these oxidants physiologically relevant quantities. We used [ 14 C]phenethyl polyacrylate as a radical trap estimate ROS production by two fungi, Gloeophyllum trabeum and Postia placenta , were degrading cellulose. Both oxidized aromatic rings on give monohydroxylated more...
SUMMARY Linking genotype with phenotype is a fundamental goal in biology and requires robust data for both. Recent advances plant‐genome sequencing have expedited comparisons among multiple‐related individuals. The abundance of structural genomic within‐species variation that has been discovered indicates single reference genome cannot represent the complete sequence diversity species, leading to expansion pan‐genome concept. For high‐resolution forward genetics, this unprecedented access...
Sudden wilt of melons induced by Monosporascus cannonballus is a worldwide problem, mainly in arid and semi-arid regions. Soil disinfestation fumigation with methyl bromide common very effective treatment for disease control. However, expected to be banned from use within the next 5 10 years; therefore, alternative measures management are urgently needed. In this study, efficacy at reduced rate (15 g/m2 instead 50 g/m2) grafted plants, alone or combination, was examined. Experiments were...
Macrophomina phaseolina is a soil-borne fungal pathogen infecting many important crop plants. The fungus, which can survive on debris for long period of time, causes charcoal rot disease by secreting diverse array cell-wall degrading enzymes and toxins. M. thrives during periods high temperatures arid conditions, as typically occur in Israel other countries with Mediterranean climate. Crop losses due to be expected increase spread warming global Management this challenging, requiring an...
The white‐rot fungus Pleurotus ostreatus produces both manganese‐dependent peroxidase (MnP) and versatile (VP) in non‐manganese‐amended peptone medium (PM). We studied the effect of Mn 2+ supplementation on MnPs VPs P. by analysing enzymatic transcript abundance profiles peroxidases, as well lignin mineralization rate. was grown PM under solid‐state conditions using perlite an inert solid support. amendment resulted a 1.7‐fold increase [ 14 C]‐lignin relative to unamended medium....
Fungi belonging to five genera, Monosporascus sp., Pythium aphanidermatum, Rhizoctonia solani, Olpidium Fusarium and F. proliferatum, were the species most frequently isolated from root systems of wilted melon. Diseased plants collected 24 fields in northern central Arava region southern Israel during fall seasons 1994 1995. In pathogenicity tests conducted under field conditions, artificially inoculated microplots, first wilt symptoms observed at various stages fruit maturation. High...
We use an oligonucleotide library of >10,000 variants to identify insulation mechanism encoded within a subset σ54 promoters. Insulation manifests itself as reduced protein expression for downstream gene that is expressed by transcriptional readthrough. It strongly associated with the presence short CT-rich motifs (3-5 bp), positioned 25 bp upstream Shine-Dalgarno (SD) motif silenced gene. provide evidence triggered binding ribosome site (RBS) motif. also show that, in E. coli, insulator...
We study translation repression in bacteria by engineering a regulatory circuit that functions as binding assay for RNA proteins (RBP) vivo. do so inducing expression of fluorescent protein-RBP chimera, together with encoding its site at various positions within the ribosomal initiation region (+11-13 nt from AUG) reporter module. show when bound their cognate RBPs, phage coat PP7 (PCP) and Qβ (QCP), strong is observed all hairpin region. Yet, sharp transition to no-effect positioned...
ABSTRACT The effect of Mn 2+ amendment on peroxidase gene expression was studied during Pleurotus ostreatus growth cotton stalks. Four peroxidase-encoding genes were expressed differentially and in a manner different from that observed defined media. affects mnp3 even 2 h after its addition to the cultures, suggesting direct metal ion expression.
SummaryMelon (Cucumis melo L.) ‘Arava’ was grafted onto 22 experimental Cucurbita rootstocks including intra- or interspecific hybrids to examine scion-rootstock compatibility and correlate plant performance under greenhouse field conditions. The commercial ‘TZ-148’ rootstock non-grafted plants were used as controls. Numbers of leaves, stem length fresh weights recorded three weeks after planting. Vegetative growth the varied markedly, indicating differences in between scion rootstocks. A...
Rust, caused by Puccinia dracunculina , is the main foliar disease of open‐field tarragon ( Artemisia dracunculus ) crops in Israel. As not much known about biology or epidemiology this pathogen, long‐term objective current study was to accumulate knowledge needed develop an effective, environmentally friendly means adequately managing disease. autoecious brachy‐form but it whether life cycle completed under field conditions Field observations and greenhouse studies revealed that although...