78 results match your criteria: "ARO-Volcani Center[Affiliation]"

-Nitroso--acetylcysteine (NAC-SNO) . nitrite as an anti-clostridial additive for meat products.

Food Funct

March 2021

Institute of Biochemistry, Food Science and Nutrition, Faculty of Agriculture Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel.

Nitrite is added to meat products as a preservative and it acts as a bacteriostatic compound against Clostridium botulinum growth. Nitric-oxide (˙NO), myoglobin and S-nitroso-compounds seem to be the main molecules generated from nitrite in meat products, which by decomposition to ˙NO, form the main anti-clostridial factor. The growth of C.

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Genetic improvement of wheat early vigor promote weed-competitiveness under Mediterranean climate.

Plant Sci

February 2021

The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, Rehovot 7610001, Israel. Electronic address:

Article Synopsis
  • Chemical weed control is currently the most effective method for managing weeds in wheat crops, but the rise of herbicide-resistant weeds threatens food security, necessitating the use of integrated non-chemical practices.
  • The research explores the integration of GA-responsive dwarfing genes into popular wheat cultivars to enhance early growth and competitiveness against weeds, focusing on promising near-isogenic lines (NILs) that show varied responses to gibberellic acid.
  • NIL OC1, exhibiting superior early vigor compared to its parent lines, was identified through greenhouse and field tests, emphasizing the importance of genetic modification in improving weed competitiveness and laying groundwork for more sustainable wheat production strategies in Mediterranean climates.
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The HrpG/HrpX Regulon of Xanthomonads-An Insight to the Complexity of Regulation of Virulence Traits in Phytopathogenic Bacteria.

Microorganisms

January 2021

Citrus Research and Education Center, Department of Microbiology and Cell Science, Institute of Food and Agricultural Sciences, University of Florida, Lake Alfred, FL 33850, USA.

Bacteria of the genus cause a wide variety of economically important diseases in most crops. The virulence of the majority of spp. is dependent on secretion and translocation of effectors by the type 3 secretion system (T3SS) that is controlled by two master transcriptional regulators HrpG and HrpX.

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Shoot Regeneration Is Not a Single Cell Event.

Plants (Basel)

December 2020

Institute of Plant Sciences, ARO Volcani Center, P.O. Box 15159, Rishon LeZion 7528809, Israel.

Shoot regeneration is a key tool of modern plant biotechnology. While many researchers use this process empirically, very little is known about the early molecular genetic factors and signaling events that lead to shoot regeneration. Using tobacco as a model system, we found that the inductive events required for shoot regeneration occur in the first 4-5 days following incubation on regeneration medium.

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Effect of dietary oils from various sources on carbohydrate and fat metabolism in mice.

Food Nutr Res

August 2020

Institute of Biochemistry, Food Science and Nutrition, Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel.

Background: Dietary oils differ in their fatty acid composition and the presence of additional microcomponents (antioxidants, etc.). These differences are thought to invoke different biochemical pathways, thus affecting fats and carbohydrates metabolism differently.

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Human health benefits from different polyphenols molecules consumption in the diet, derived mainly by their common activities in the gastrointestinal tract and at the level of blood micro-capillary. In the stomach, intestine and colon, polyphenols act as reducing agents preventing lipid peroxidation, generation and absorption of AGEs/ALEs (advanced glycation end products/advanced lipid oxidation end products) and postprandial oxidative stress. The low absorption of polyphenols in blood does not support their activity as antioxidants and their mechanism of activity is not fully understood.

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Water availability is arguably the most important environmental factor limiting crop growth and productivity. Erratic precipitation patterns and increased temperatures resulting from climate change will likely make drought events more frequent in many regions, increasing the demand on freshwater resources and creating major challenges for agriculture. Addressing these challenges through increased irrigation is not always a sustainable solution so there is a growing need to identify and/or breed drought-tolerant crop varieties in order to maintain sustainability in the context of climate change.

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Pod and Seed Trait QTL Identification To Assist Breeding for Peanut Market Preferences.

G3 (Bethesda)

July 2020

Department of Horticulture and Institute of Plant Breeding, Genetics & Genomics, University of Georgia, Tifton, GA 31793,

Although seed and pod traits are important for peanut breeding, little is known about the inheritance of these traits. A recombinant inbred line (RIL) population of 156 lines from a cross of Tifrunner x NC 3033 was genotyped with the Axiom_Arachis1 SNP array and SSRs to generate a genetic map composed of 1524 markers in 29 linkage groups (LG). The genetic positions of markers were compared with their physical positions on the peanut genome to confirm the validity of the linkage map and explore the distribution of recombination and potential chromosomal rearrangements.

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-Nitroso--acetylcysteine (NAC-SNO) as an Antioxidant in Cured Meat and Stomach Medium.

J Agric Food Chem

October 2019

Institute of Biochemistry, Food Science and Nutrition, Faculty of Agriculture Food and Environment , The Hebrew University of Jerusalem, Rehovot 76100 , Israel.

The stability of lipids in meat products depends on the initial concentration of hydroperoxides, the catalytic involvement of metal ions and myoglobin, endogenous antioxidants, and biological and technological factors. Ground meat was treated with additives, sealed in vacuum bags, heated to 75 °C, and stored opened to air at 4 °C. -Nitroso--acetylcysteine (NAC-SNO) at concentration like nitrite used by the industry prevents lipid peroxidation in the product, even after storage for 1 month at 4 °C.

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The wheat Pm3 resistance gene against the powdery mildew pathogen occurs as an allelic series encoding functionally different immune receptors which induce resistance upon recognition of isolate-specific avirulence (AVR) effectors from the pathogen. Here, we describe the identification of five effector proteins from the mildew pathogens of wheat, rye, and the wild grass Dactylis glomerata, specifically recognized by the PM3B, PM3C and PM3D receptors. Together with the earlier identified AVRPM3, the recognized AVRs of PM3B/C, (AVRPM3), and PM3D (AVRPM3) belong to a large group of proteins with low sequence homology but predicted structural similarities.

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The Liberibacter genus comprises insect endosymbiont bacterial species that cause destructive plant diseases, including Huanglongbing in citrus and zebra chip in potato. To date, pathogenic 'Candidatus Liberibacter spp.' (CLs) remain uncultured, therefore the plant-associated Liberibacter crescens (Lcr), only cultured species of the genus, has been used as a biological model for in vitro studies.

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Visualizing Embolism Propagation in Gas-Injected Leaves.

Plant Physiol

June 2019

Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts 02138.

Because the xylem in leaves is thought to be at the greatest risk of cavitation, reliable and efficient methods to characterize leaf xylem vulnerability are of interest. We report a method to generate leaf xylem vulnerability curves (VCs) by gas injection. Using optical light transmission, we visualized embolism propagation in grapevine () and red oak () leaves injected with positive gas pressure.

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Distinguishing between Bread Wheat and Spelt Grains Using Molecular Markers and Spectroscopy.

J Agric Food Chem

April 2019

Department of Vegetable and Field Crops, Institute of Plant Sciences , Agricultural Research Organization (ARO)-Volcani Center, Rishon LeZion 7528809 , Israel.

The increasing demand for spelt products requires the baking industry to develop accurate and efficient tools to differentiate between spelt and bread wheat grains. We subjected a 272-sample spelt-bread wheat set to several potential diagnostic methods. DNA markers for γ-gliadin-D ( GAG56D), γ-gliadin-B ( GAG56B), and the Q-gene were used, alongside phenotypic assessment of ease-of-threshing and near-infrared spectroscopy (NIRS).

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Introduction: Projected temperature rise in the upcoming years due to climate change has increased interest in studying the effects of heat stress in dairy cows. Environmental indices are commonly used for detecting heat stress, but have been used mainly in studies focused on the productivity-related effects of heat stress. The welfare approach involves identifying physiological and behavioural measurements so as to start heat stress mitigation protocols before the appearance of impending severe health or production issues.

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Virtual water flows and water-footprint of agricultural crop production, import and export: A case study for Israel.

Sci Total Environ

May 2018

Institute of Soil, Water and Environmental Sciences, ARO- Volcani Center, 68 HaMaccabim Rd., P.O.B 15159, Rishon LeZion 7505101, Israel. Electronic address:

Agriculture is the largest global consumer of freshwater. As the volume of international trade continues to rise, so does the understanding that trade of water-intensive crops from areas with high precipitation, to arid regions can help mitigate water scarcity, highlighting the importance of crop water accounting. Virtual-Water, or Water-Footprint [WF] of agricultural crops, is a powerful indicator for assessing the extent of water use by plants, contamination of water bodies by agricultural practices and trade between countries, which underlies any international trade of crops.

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Recognition of the AVRPM3 avirulence protein from powdery mildew by the wheat PM3A/F immune receptor induces a hypersensitive response after co-expression in Nicotiana benthamiana. The molecular determinants of this interaction and how they shape natural AvrPm3 allelic diversity are unknown. We sequenced the AvrPm3 gene in a worldwide collection of 272 mildew isolates.

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Citrus hydraulic physiology and PIP transcript levels were characterized in heavy (clay) and light (sandy loam) soils with and without treated waste water (TWW) irrigation after a summer irrigation season and at the end of a winter rainy season recovery period. Consistent reductions in clay soils compared to sandy loam were found for fresh water (FW) and TWW irrigation, respectively, in root water uptake, as well as in hydraulic conductivity of whole plant (K plant), stem (K stem) and root (K root). Transcript levels of most PIPs down-regulated following TWW irrigation in both soils, but relative gene expression of three PIPs was significantly higher in summer for sandy soil and FW than for clay soil and TWW; their mRNA levels was significantly correlated to K root.

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Heat stress negatively affects cow performance, compromises immune function, and increases susceptibility to metabolic disorders, particularly during the dry period and as cows transition from gestation to lactation. Metabolic adaptations of the liver are critical for successful transition, yet it is unclear how heat stress affects metabolic pathways within the liver at the proteomic level. The objective of this study was to investigate the liver proteome of postpartum cows that were cooled or heat stressed during the dry period to gain insight into how protein expression is altered by prior heat stress and may contribute to performance and disease outcomes.

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Our "diabetogenic diet" composition [1] was indeed based on the one described by Funda et al. [2] with regards to dietary requirements.[.

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Review on Anti-Cancer Activity in Wild Plants of the Middle East.

Curr Med Chem

January 2019

Institute of Plant Sciences, Agriculture Research Organization, Volcani Center, Rishon LeZion, Israel.

Background: The Mediterranean basin is one of the richest biodiversity areas in the world, and the use of medicinal plants for treating cancer in this area has been documented for generations in different cultures.

Objective: To present and discuss the findings related to medicinal plants with confirmed data on active compounds and/or clear mode of action.

Methods: We undertook a structured search of bibliography of peer-reviewed research literature using key words and a focused review question.

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Nutrition, especially wheat consumption, is a major factor involved in the onset of type 1 diabetes (T1D) and other autoimmune diseases such as celiac. While modern wheat cultivars possess similar gliadin proteins associated with the onset of celiac disease and T1D, alternative dietary wheat sources from Israeli landraces and native ancestral species may be lacking the epitopes linked with T1D, potentially reducing the incidence of T1D. The Non-Obese Diabetic (NOD) mouse model was used to monitor the effects of dietary wheat sources on the onset and development of T1D.

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Red-meat lipid peroxidation in the stomach results in postprandial oxidative stress (POS) which is characterized by the generation of a variety of reactive cytotoxic aldehydes including malondialdehyde (MDA). MDA is absorbed in the blood system reacts with cell proteins to form adducts resulting in advanced lipid peroxidation end products (ALEs), producing dysfunctional proteins and cellular responses. The pathological consequences of ALEs tissue damage include inflammation and increased risk for many chronic diseases that are associated with a Western-type diet.

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This is a protocol to evaluate gross primary productivity (GPP) of a forest stand based on the measurements of tree's sap flow (SF), C derived water use efficiency (WUE), and meteorological (met) data. GPP was calculated from WUE and stomatal conductance (g), the later obtained from SF up-scaled from sampled trees to stand level on a daily time-scale and met data. WUE is obtained from C measurements in dated tree-ring wood and/or foliage samples.

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The amount of cholesterol made by many plants is not negligible. Whereas cholesterogenesis in animals was elucidated decades ago, the plant pathway has remained enigmatic. Among other roles, cholesterol is a key precursor for thousands of bioactive plant metabolites, including the well-known Solanum steroidal glycoalkaloids.

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