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Alonso R, Muñoz F, Bottini R, Piccoli P, Berli FJ. Effects of Wind Exposure and Deficit Irrigation on Vegetative Growth, Yield Components and Berry Composition of Malbec and Cabernet Sauvignon. Plants (Basel) 2024; 13:1292. [PMID: 38794367 DOI: 10.3390/plants13101292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Revised: 04/23/2024] [Accepted: 05/05/2024] [Indexed: 05/26/2024]
Abstract
The impact of global warming on Argentine viticulture may result in a geographical shift, with wine-growing regions potentially moving towards the southwest, known as one of the windiest regions in the world. Deficit irrigation is a widely used strategy to control the shoot growth and improve fruit quality attributes, such as berry skin polyphenols. The present study aimed to assess the effects of different wind intensities and irrigation levels, as well as their interactions, on field-grown Vitis vinifera L. cvs. Malbec and Cabernet Sauvignon. The experiment was conducted during two growing seasons with two wind treatments (sheltered and exposed) and two irrigation treatments (well-watered and moderate deficit irrigation) in a multifactorial design. Vegetative growth, stomatal conductance, shoot biomass partition, fruit yield components and berry skin phenolics were evaluated. Our study found that, generally, wind exposure reduced vegetative growth, and deficit irrigation increased the proportion of smaller berries within the bunches. Meanwhile, deficit irrigation and wind exposure additively increased the concentration of berry skin phenolics. Combined stressful conditions enhance biomass partition across the shoot to fruits in Malbec, increasing the weight of bunches and the number of berries. Our findings offer practical implications for vineyard managers in windy regions, providing actionable insights to optimize grapevine cultivation and enhance wine quality.
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Affiliation(s)
- Rodrigo Alonso
- Grupo de Bioquímica Vegetal, Instituto de Biología Agrícola de Mendoza (IBAM), Consejo Nacional de Investigaciones Científicas y Técnicas-Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, Almirante Brown 500, Chacras de Coria, Mendoza 5507, Argentina
| | - Flavio Muñoz
- Grupo de Bioquímica Vegetal, Instituto de Biología Agrícola de Mendoza (IBAM), Consejo Nacional de Investigaciones Científicas y Técnicas-Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, Almirante Brown 500, Chacras de Coria, Mendoza 5507, Argentina
| | - Rubén Bottini
- Instituto Argentino de Veterinaria, Ambiente y Salud (IAVAS), Universidad Juan Agustín Maza, Av. Acceso Este Lateral Sur 2245, Guaymallén, Mendoza 5519, Argentina
| | - Patricia Piccoli
- Grupo de Bioquímica Vegetal, Instituto de Biología Agrícola de Mendoza (IBAM), Consejo Nacional de Investigaciones Científicas y Técnicas-Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, Almirante Brown 500, Chacras de Coria, Mendoza 5507, Argentina
| | - Federico J Berli
- Grupo de Bioquímica Vegetal, Instituto de Biología Agrícola de Mendoza (IBAM), Consejo Nacional de Investigaciones Científicas y Técnicas-Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, Almirante Brown 500, Chacras de Coria, Mendoza 5507, Argentina
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Antoniolli A, Becerra L, Piccoli P, Fontana A. Phenolic, Nutritional and Sensory Characteristics of Bakery Foods Formulated with Grape Pomace. Plants (Basel) 2024; 13:590. [PMID: 38475437 DOI: 10.3390/plants13050590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/17/2024] [Accepted: 02/20/2024] [Indexed: 03/14/2024]
Abstract
The potentiality of cv. Malbec grape pomace (GP) as a functional ingredient in the formulation of bakery foods (muffins, biscuits and cereal bars) was studied. The effect of GP addition on the phenolic compounds (PCs) composition, nutritional and sensory properties were evaluated. The addition of GP increased the content of dietary fiber, proteins, ash, total phenolic content (TPC), antiradical capacity (AC), anthocyanins and non-anthocyanin PCs while decreasing the carbohydrates content. The main PCs given by the GP to supplemented foods were quercetin-3-O-glucoside, rutin, caffeic acid, syringic acid and (+)-catechin. For anthocyanins, the acylated derivatives were more stable to heat treatment (baking) in food processing which was evidenced by a higher proportion of these PCs compounds when compared to the same derivatives quantified in GP. In general, when the TPC or individual concentrations of PCs were analyzed in a nutritional or functional context, one portion of the supplemented foods showed levels high enough to satisfy the recommended dose per day of these bioactive compounds. Additionally, the foods were well received by consumers during the sensory evaluation and supplemented biscuits received the highest acceptability. This study demonstrated that GP could be a viable functional ingredient in bakery foods to incorporate components like PCs and dietary fiber into traditional consumers' diets.
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Affiliation(s)
- Andrea Antoniolli
- Cátedra de Química Orgánica y Biológica, Departamento de Biomatemática y Fisicoquímica, Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo (UNCuyo), Chacras de Coria M5528AHB, Argentina
- Grupo de Bioquímica Vegetal, Instituto de Biología Agrícola de Mendoza (IBAM), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Cuyo (UNCuyo), Almirante Brown 500, Chacras de Coria M5528AHB, Argentina
| | - Lucía Becerra
- Cátedra de Química Orgánica y Biológica, Departamento de Biomatemática y Fisicoquímica, Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo (UNCuyo), Chacras de Coria M5528AHB, Argentina
| | - Patricia Piccoli
- Cátedra de Química Orgánica y Biológica, Departamento de Biomatemática y Fisicoquímica, Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo (UNCuyo), Chacras de Coria M5528AHB, Argentina
- Grupo de Bioquímica Vegetal, Instituto de Biología Agrícola de Mendoza (IBAM), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Cuyo (UNCuyo), Almirante Brown 500, Chacras de Coria M5528AHB, Argentina
| | - Ariel Fontana
- Cátedra de Química Orgánica y Biológica, Departamento de Biomatemática y Fisicoquímica, Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo (UNCuyo), Chacras de Coria M5528AHB, Argentina
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Pérez-Rodriguez MM, Pontin M, Piccoli P, Lobato Ureche MA, Gordillo MG, Funes-Pinter I, Cohen AC. Halotolerant native bacteria Enterobacter 64S1 and Pseudomonas 42P4 alleviate saline stress in tomato plants. Physiol Plant 2022; 174:e13742. [PMID: 35770943 DOI: 10.1111/ppl.13742] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 06/24/2022] [Accepted: 06/27/2022] [Indexed: 06/15/2023]
Abstract
Salinity is one of the principal abiotic stresses that limit the growth and productivity of crops. The use of halotolerant plant growth-promoting rhizobacteria (PGPR) that increase the growth of salt-stressed crops is an environmentally friendly alternative to promote plant yield under salinity. The aim of this study was to test native PGPR, isolated according to their tolerance to NaCl, and to evaluate their influence on morphological, physiological, and biochemical traits promoted by salt stress in tomato plants. Enterobacter 64S1 and Pseudomonas 42P4 were selected as the most efficient strains in terms of salt tolerance. Both strains were classified as moderately resistant to salinity (NaCl) and maintained their plant growth-promoting activities, such as nitrogen fixation and phosphate solubilization, even in the presence of high levels of salt. The results of a greenhouse experiment demonstrated that PGPR inoculation increased root and shoot dry weight, stem diameter, plant height, and leaf area compared to control noninoculated plants under nonsaline stress conditions, reversing the effects of salinity. Inoculated plants showed increased tolerance to salt conditions by reducing electrolyte leakage (improved membrane stability) and lipid peroxidation and increasing chlorophyll quantum efficiency (Fv/Fm) and the performance index. Also, inoculation increased the accumulation of proline and antioxidant nonenzymatic compounds, such as carotenes and total phenolic compounds. The catalase and peroxidase activities increased with salinity, but the effect was reversed by Enterobacter 64S1. In conclusion, Enterobacter 64S1 and Pseudomonas 42P4 isolated from salt-affected regions have the potential to alleviate the deleterious effects of salt stress in tomato crops.
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Affiliation(s)
- María Micaela Pérez-Rodriguez
- Instituto de Biología Agrícola de Mendoza (IBAM-CONICET), Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, Mendoza, Argentina
| | - Mariela Pontin
- Estación Experimental Agropecuaria La Consulta, Instituto Nacional de Tecnología Agropecuaria, Mendoza, Argentina
| | - Patricia Piccoli
- Instituto de Biología Agrícola de Mendoza (IBAM-CONICET), Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, Mendoza, Argentina
| | - Miguel Andrés Lobato Ureche
- Instituto de Biología Agrícola de Mendoza (IBAM-CONICET), Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, Mendoza, Argentina
| | - María G Gordillo
- Instituto de Biología Agrícola de Mendoza (IBAM-CONICET), Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, Mendoza, Argentina
| | - Iván Funes-Pinter
- Instituto Nacional de Tecnología Agropecuaria, Estación Experimental Mendoza (INTA EEA Mendoza), Mendoza, Argentina
| | - Ana Carmen Cohen
- Instituto de Biología Agrícola de Mendoza (IBAM-CONICET), Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, Mendoza, Argentina
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Arias LA, Berli F, Fontana A, Bottini R, Piccoli P. Climate Change Effects on Grapevine Physiology and Biochemistry: Benefits and Challenges of High Altitude as an Adaptation Strategy. Front Plant Sci 2022; 13:835425. [PMID: 35693157 PMCID: PMC9178254 DOI: 10.3389/fpls.2022.835425] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 04/05/2022] [Indexed: 06/15/2023]
Abstract
Grapevine berry quality for winemaking depends on complex and dynamic relationships between the plant and the environment. Winemakers around the world are demanding a better understanding of the factors that influence berry growth and development. In the last decades, an increment in air temperature, CO2 concentration and dryness occurred in wine-producing regions, affecting the physiology and the biochemistry of grapevines, and by consequence the berry quality. The scientific community mostly agrees in a further raise as a result of climate change during the rest of the century. As a consequence, areas most suitable for viticulture are likely to shift into higher altitudes where mean temperatures are suitable for grape cultivation. High altitude can be defined as the minimum altitude at which the grapevine growth and development are differentially affected. At these high altitudes, the environments are characterized by high thermal amplitudes and great solar radiations, especially ultraviolet-B (UV-B). This review summarizes the environmental contribution of global high altitude-related climatic variables to the grapevine physiology and wine composition, for a better evaluation of the possible establishment of vineyards at high altitude in climate change scenarios.
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Affiliation(s)
- Leonardo A. Arias
- Grupo de Bioquímica Vegetal, Instituto de Biología Agrícola de Mendoza, CONICET, Chacras de Coria, Argentina
| | - Federico Berli
- Grupo de Bioquímica Vegetal, Instituto de Biología Agrícola de Mendoza, CONICET, Chacras de Coria, Argentina
| | - Ariel Fontana
- Grupo de Bioquímica Vegetal, Instituto de Biología Agrícola de Mendoza, CONICET, Chacras de Coria, Argentina
| | - Rubén Bottini
- Instituto Argentino de Veterinaria, Ambiente y Salud, Universidad Juan Agustín Maza, Guaymallén, Argentina
| | - Patricia Piccoli
- Grupo de Bioquímica Vegetal, Instituto de Biología Agrícola de Mendoza, CONICET, Chacras de Coria, Argentina
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Papú S, Berli F, Piccoli P, Patón D, Ortega Rodriguez DR, Roig FA. Physiological, biochemical, and anatomical responses of Araucaria araucana seedlings to controlled water restriction. Plant Physiol Biochem 2021; 165:47-56. [PMID: 34034160 DOI: 10.1016/j.plaphy.2021.05.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 05/03/2021] [Indexed: 06/12/2023]
Abstract
Water stress triggers acclimation responses and can damage plants, which varies by species and stress levels. Ongoing climate change is projected to result in longer and more intense water stress conditions leading to an alarming increase in drought-induced forest decline. The aim of this study was to evaluate the physiological responses of leaves and stem wood anatomy from Araucaria araucana pot-grown three-year old seedlings, a conifer tree from northwestern Patagonia. Plants were subjected to moderate and severe water restriction regimes and compared to well-watered controls. Severe water stress reduced relative leaf water content and triggered an accumulation of free proline in leaves, regardless of age. Epicuticular wax extrusions increased in apical leaf stomata while photosynthetic pigments decreased, resulting in differential oxidative damage. The concentration of phenolic compounds was not affected by water restrictions. Plants exposed to restricted water regimes showed diminished middle leaf biomass and expansion (~60% of total leaves), increased stem wood density, and experienced 7% and 30% mortality rates under moderate and severe water stress, respectively. Our findings suggest that under moderate water stress, analogous to short-term droughts, A. araucana seedlings activate physiological mechanisms that allow them to withstand short periods of drought, while more severe water stress and longer droughts can be severely harmful.
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Affiliation(s)
- S Papú
- Argentine Institute of Nivology, Glaciology and Environmental Sciences (IANIGLA, CONICET-Universidad Nacional de Cuyo), 5500, Mendoza, Argentina.
| | - F Berli
- Agricultural Biology Institute of Mendoza (IBAM, CONICET-Universidad Nacional de Cuyo), 5507, Mendoza, Argentina
| | - P Piccoli
- Agricultural Biology Institute of Mendoza (IBAM, CONICET-Universidad Nacional de Cuyo), 5507, Mendoza, Argentina
| | - D Patón
- Plant Biology, Ecology and Earth Sciences, Faculty of Sciences, University of Extremadura, Avda. de Elvas s/n, 06071, Badajoz, Spain
| | - D R Ortega Rodriguez
- Universidade de Sao Paulo, Escola Superior de Agricultura Luiz de Queiroz, Department of Forest Resource, 13418-900, Piracicaba, Brazil
| | - F A Roig
- Argentine Institute of Nivology, Glaciology and Environmental Sciences (IANIGLA, CONICET-Universidad Nacional de Cuyo), 5500, Mendoza, Argentina; Universidade de Sao Paulo, Escola Superior de Agricultura Luiz de Queiroz, Department of Forest Resource, 13418-900, Piracicaba, Brazil; Hémera Centro de Observación de la Tierra, Facultad de Ciencias, Universidad Mayor, José Toribio Medina 29, Santiago, 8340589, Chile
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6
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Hugalde IP, Agüero CB, Barrios-Masias FH, Romero N, Viet Nguyen A, Riaz S, Piccoli P, McElrone AJ, Walker MA, Vila HF. Modeling vegetative vigour in grapevine: unraveling underlying mechanisms. Heliyon 2020; 6:e05708. [PMID: 33385078 PMCID: PMC7770548 DOI: 10.1016/j.heliyon.2020.e05708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 10/30/2020] [Accepted: 11/09/2020] [Indexed: 11/17/2022] Open
Abstract
Mechanistic modeling constitutes a powerful tool to unravel complex biological phenomena. This study describes the construction of a mechanistic, dynamic model for grapevine plant growth and canopy biomass (vigor). To parametrize and validate the model, the progeny from a cross of Ramsey (Vitis champinii) × Riparia Gloire (V. riparia) was evaluated. Plants with different vigor were grown in a greenhouse during the summer of 2014 and 2015. One set of plants was grafted with Cabernet Sauvignon. Shoot growth rate (b), leaf area (LA), dry biomass, whole plant and root specific hydraulic conductance (kH and Lpr), stomatal conductance (gs), and water potential (Ψ) were measured. Partitioning indices and specific leaf area (SLA) were calculated. The model includes an empirical fit of a purported seasonal pattern of bioactive GAs based on published seasonal evolutionary levels and reference values. The model provided a good fit of the experimental data, with R = 0.85. Simulation of single trait variations defined the individual effect of each variable on vigor determination. The model predicts, with acceptable accuracy, the vigor of a young plant through the measurement of Lpr and SLA. The model also permits further understanding of the functional traits that govern vigor, and, ultimately, could be considered useful for growers, breeders and those studying climate change.
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Affiliation(s)
- Inés P. Hugalde
- Estación Experimental Agropecuaria Mendoza, INTA, San Martín 3853, M. Drummond, 5507, Mendoza, Argentina
- Dept. Viticulture and Enology, UC Davis, One Shields Ave, Davis, CA 95616, USA
- Corresponding author.
| | - Cecilia B. Agüero
- Dept. Viticulture and Enology, UC Davis, One Shields Ave, Davis, CA 95616, USA
| | - Felipe H. Barrios-Masias
- Dept. Viticulture and Enology, UC Davis, One Shields Ave, Davis, CA 95616, USA
- Dept. Agriculture, Veterinary and Rangeland Sciences, University of Nevada, Reno, Reno, NV 89557, USA
| | - Nina Romero
- Dept. Viticulture and Enology, UC Davis, One Shields Ave, Davis, CA 95616, USA
| | - Andy Viet Nguyen
- Dept. Viticulture and Enology, UC Davis, One Shields Ave, Davis, CA 95616, USA
| | - Summaira Riaz
- Dept. Viticulture and Enology, UC Davis, One Shields Ave, Davis, CA 95616, USA
| | - Patricia Piccoli
- Instituto de Biología Agrícola de Mendoza, UNCuyo – CONICET, Argentina
| | - Andrew J. McElrone
- Dept. Viticulture and Enology, UC Davis, One Shields Ave, Davis, CA 95616, USA
- USDA-ARS, Davis, CA, 95616, USA
| | - M. Andrew Walker
- Dept. Viticulture and Enology, UC Davis, One Shields Ave, Davis, CA 95616, USA
| | - Hernán F. Vila
- Estación Experimental Agropecuaria Mendoza, INTA, San Martín 3853, M. Drummond, 5507, Mendoza, Argentina
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Pérez-Rodriguez MM, Piccoli P, Anzuay MS, Baraldi R, Neri L, Taurian T, Lobato Ureche MA, Segura DM, Cohen AC. Native bacteria isolated from roots and rhizosphere of Solanum lycopersicum L. increase tomato seedling growth under a reduced fertilization regime. Sci Rep 2020; 10:15642. [PMID: 32973225 PMCID: PMC7515909 DOI: 10.1038/s41598-020-72507-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 08/27/2020] [Indexed: 11/09/2022] Open
Abstract
In semiarid regions is important to use native strains best adapted to these environments to optimize plant-PGPR interaction. We aimed to isolate and characterize PGPR from roots and rhizosphere of a tomato crop, as well as studying the effect of its inoculation on tomato seedlings growth. We selected four strains considering their effectiveness of fixing nitrogen, solubilizing phosphate, producing siderophores and indole acetic acid. They belong to the genera Enterobacter, Pseudomonas, Cellulosimicrobium, and Ochrobactrum. In addition, we also analyzed the ability to solubilize Ca3(PO4)2, FePO4 and AlPO4 and the presence of one of the genes encoding the cofactor PQQ in their genome. Enterobacter 64S1 and Pseudomonas 42P4 showed the highest phosphorus solubilizing activity and presence of pqqE gene. Furthermore, in a tomato-based bioassay in speed-bed demonstrated that a sole inoculation at seedling stage with the strains increased dry weight of roots (49-88%) and shoots (39-55%), stem height (8-13%) and diameter (5-8%) and leaf area (22-31%) and were equal or even higher than fertilization treatment. Leaf nitrogen and chlorophyll levels were also increased (50-80% and 26-33%) compared to control. These results suggest that Enterobacter 64S1 and Pseudomonas 42P4 can be used as bio-inoculant in order to realize a nutrient integrated management.
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Affiliation(s)
- María Micaela Pérez-Rodriguez
- Instituto de Biología Agrícola de Mendoza (IBAM-CONICET), Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, 5507, Chacras de Coria, Mendoza, Argentina
| | - Patricia Piccoli
- Instituto de Biología Agrícola de Mendoza (IBAM-CONICET), Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, 5507, Chacras de Coria, Mendoza, Argentina
| | - María Soledad Anzuay
- Departamento de Ciencias Naturales, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Agencia Postal 3, 5800, Río Cuarto, Córdoba, Argentina
| | - Rita Baraldi
- National Research Council of Italy, Institute of BioEconomy (CNR-IBE), via P. Gobetti 101, 40129, Bologna, Italy
| | - Luisa Neri
- National Research Council of Italy, Institute of BioEconomy (CNR-IBE), via P. Gobetti 101, 40129, Bologna, Italy
| | - Tania Taurian
- Departamento de Ciencias Naturales, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Agencia Postal 3, 5800, Río Cuarto, Córdoba, Argentina
| | - Miguel Andrés Lobato Ureche
- Instituto de Biología Agrícola de Mendoza (IBAM-CONICET), Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, 5507, Chacras de Coria, Mendoza, Argentina
| | - Diana María Segura
- Instituto de Biología Agrícola de Mendoza (IBAM-CONICET), Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, 5507, Chacras de Coria, Mendoza, Argentina
| | - Ana Carmen Cohen
- Instituto de Biología Agrícola de Mendoza (IBAM-CONICET), Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, 5507, Chacras de Coria, Mendoza, Argentina.
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Cohen AC, Dichiara E, Jofré V, Antoniolli A, Bottini R, Piccoli P. Carotenoid profile produced by Bacillus licheniformis
Rt4M10 isolated from grapevines grown in high altitude and their antioxidant activity. Int J Food Sci Technol 2018. [DOI: 10.1111/ijfs.13879] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ana C. Cohen
- Laboratorio de Bioquímica Vegetal; Facultad de Ciencias Agrarias; Instituto de Biología Agrícola de Mendoza; Consejo Nacional de Investigaciones Científicas y Técnicas and Universidad Nacional de Cuyo; Almirante Brown 500 CP 5507 Chacras de Coria Argentina
| | - Elisa Dichiara
- Laboratorio de Bioquímica Vegetal; Facultad de Ciencias Agrarias; Instituto de Biología Agrícola de Mendoza; Consejo Nacional de Investigaciones Científicas y Técnicas and Universidad Nacional de Cuyo; Almirante Brown 500 CP 5507 Chacras de Coria Argentina
| | - Viviana Jofré
- Laboratorio de Aromas y Sustancias Naturales; Estación Experimental Agropecuaria Mendoza; Instituto Nacional de Tecnología Agropecuaria; San Martín 3853 CP 5507 Mayor Drummond Argentina
| | - Andrea Antoniolli
- Laboratorio de Bioquímica Vegetal; Facultad de Ciencias Agrarias; Instituto de Biología Agrícola de Mendoza; Consejo Nacional de Investigaciones Científicas y Técnicas and Universidad Nacional de Cuyo; Almirante Brown 500 CP 5507 Chacras de Coria Argentina
| | - Rubén Bottini
- Laboratorio de Bioquímica Vegetal; Facultad de Ciencias Agrarias; Instituto de Biología Agrícola de Mendoza; Consejo Nacional de Investigaciones Científicas y Técnicas and Universidad Nacional de Cuyo; Almirante Brown 500 CP 5507 Chacras de Coria Argentina
| | - Patricia Piccoli
- Laboratorio de Bioquímica Vegetal; Facultad de Ciencias Agrarias; Instituto de Biología Agrícola de Mendoza; Consejo Nacional de Investigaciones Científicas y Técnicas and Universidad Nacional de Cuyo; Almirante Brown 500 CP 5507 Chacras de Coria Argentina
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Rodriguez Lanzi C, Perdicaro DJ, Antoniolli A, Piccoli P, Vazquez Prieto MA, Fontana A. Phenolic metabolites in plasma and tissues of rats fed with a grape pomace extract as assessed by liquid chromatography-tandem mass spectrometry. Arch Biochem Biophys 2018; 651:28-33. [DOI: 10.1016/j.abb.2018.05.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 05/15/2018] [Accepted: 05/29/2018] [Indexed: 12/25/2022]
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Funes Pinter I, Salomon MV, Gil R, Mastrantonio L, Bottini R, Piccoli P. Arsenic and trace elements in soil, water, grapevine and onion in Jáchal, Argentina. Sci Total Environ 2018; 615:1485-1498. [PMID: 28927807 DOI: 10.1016/j.scitotenv.2017.09.114] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 09/10/2017] [Accepted: 09/12/2017] [Indexed: 06/07/2023]
Abstract
Contamination by trace elements (TE) is an increasing concern worldwide. In some areas, crop production could be limited by the presence of metals and metalloids, so it is important to determine their concentrations and mobility. The region of Jáchal, province of San Juan, Argentina, has good growing conditions for onion and grapevine production, but their quality and yield are affected by high TE concentration in soils and water. Soils, water, grapevine and onion were sampled and TE content determined. In soils elevated As, B, Cr, Hg, and Tl concentrations were detected (506±46, 149±3, 2714±217, 16±7, and 12±3μgg-1, respectively, for maximum values measured), and physicochemical properties of the soil promotes these elements mobility. Water samples had high As, B, Cr, and Fe concentrations (1438±400, 10,871±471, 11,516±2363, and 3071±257μgL-1, respectively, for maximum values measured) while in onion bulbs and grapevine berries, As, Cr, Cu, and Fe (92±7 and 171±20, 1412±18 and 2965±32, 17±3 and 126±88, and 418±204 and 377±213μgg-1, respectively, for maximum values measured) exceeded the limits for food consumption established by Argentinian law. Correlation analyses indicated that: i) there is a common source of TE in this area, ii) each elements concentration in plants is associated with different soil variables and different soils depths, and iii) the lack of correlation between soil and water indicates that concentration in water is not constant over the time and/or there exists a differential accumulation of elements in soils depending on their own properties. Data obtained demonstrate very high concentration of TE in soil, grapevines, and onion plants in Jáchal region, and different remediation techniques are necessary to stabilize and minimize the bioavailability of these elements.
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Affiliation(s)
- Iván Funes Pinter
- Instituto de Biología Agrícola de Mendoza (IBAM, CONICET-UNCuyo), Almirante Brown 500, M5528AHB Chacras de Coria, Argentina.
| | - M Victoria Salomon
- Instituto de Biología Agrícola de Mendoza (IBAM, CONICET-UNCuyo), Almirante Brown 500, M5528AHB Chacras de Coria, Argentina.
| | - Raúl Gil
- Instituto de Química de San Luis (INQUISAL, CONICET-UNSL), Chacabuco y Pedernera, D5700HOI San Luis, Argentina.
| | - Leandro Mastrantonio
- Cátedra de Edafología, Facultad de Ciencias Agrarias, UNCuyo, Almirante Brown 500, M5528AHB Chacras de Coria, Argentina.
| | - Rubén Bottini
- Instituto de Biología Agrícola de Mendoza (IBAM, CONICET-UNCuyo), Almirante Brown 500, M5528AHB Chacras de Coria, Argentina.
| | - Patricia Piccoli
- Instituto de Biología Agrícola de Mendoza (IBAM, CONICET-UNCuyo), Almirante Brown 500, M5528AHB Chacras de Coria, Argentina.
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Salomon MV, Piccoli P, Funes Pinter I, Stirk WA, Kulkarni M, van Staden J, Bottini R. Bacteria and smoke-water extract improve growth and induce the synthesis of volatile defense mechanisms in Vitis vinifera L. Plant Physiol Biochem 2017; 120:1-9. [PMID: 28945988 DOI: 10.1016/j.plaphy.2017.09.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 09/11/2017] [Accepted: 09/15/2017] [Indexed: 06/07/2023]
Abstract
Sustainable agricultural practices have been developed as alternative to the use of agrochemicals, and viticulture is not exempt of that. Plant growth promoting rhizobacteria (PGPR) and smoke water extracts (SW) are environmentally-friendly alternative to those agrochemicals. The aim of this study was to investigate the single or combined effects of SW and the PGPR Pseudomonas fluorescens (Pf) and Bacillus licheniformis (Bl) on the physiology and biochemistry of grapevines plants. After 38 days, single applications of SW solutions and bacterial suspensions increase rooting and root length. Combined treatments had a slight positive effect compared to the water control. At the end of 60-days pot trial, grapevine treated with 1:1000 SW and Pf applied alone showed increases in stem length, leaf area and fresh weight of the roots, shoot and leaves, although not significantly differences from the water control were found. In addition, Pf augmented chlorophyll relative content, all treatments decreased the stomatal conductance (mainly 1:500 SW, Pf and 1:1000 SW + Bl), as well as lipid peroxidation in roots (mainly in bacterial treatments), and induced the synthesis of mono and sesquiterpenes in leaves, where the effect was enhanced in combined treatments. In conclusion, PGPR and SW are effective to improve growth of V. vinifera cuttings as well as to increase the plants defense mechanisms that may help them to cope with biotic and abiotic stresses.
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Affiliation(s)
- María Victoria Salomon
- Instituto de Biología Agrícola de Mendoza (IBAM), Facultad de Ciencias Agrarias, CONICET, UNCuyo, Almirante Brown 500, Chacras de Coria M5528AHB, Argentina.
| | - Patricia Piccoli
- Instituto de Biología Agrícola de Mendoza (IBAM), Facultad de Ciencias Agrarias, CONICET, UNCuyo, Almirante Brown 500, Chacras de Coria M5528AHB, Argentina
| | - Iván Funes Pinter
- Instituto de Biología Agrícola de Mendoza (IBAM), Facultad de Ciencias Agrarias, CONICET, UNCuyo, Almirante Brown 500, Chacras de Coria M5528AHB, Argentina
| | - Wendy Ann Stirk
- Research Centre for Plant Growth and Development, School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg Campus, P/Bag X01, Scottsville 3209, South Africa
| | - Manoj Kulkarni
- Research Centre for Plant Growth and Development, School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg Campus, P/Bag X01, Scottsville 3209, South Africa
| | - Johannes van Staden
- Research Centre for Plant Growth and Development, School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg Campus, P/Bag X01, Scottsville 3209, South Africa
| | - Rubén Bottini
- Instituto de Biología Agrícola de Mendoza (IBAM), Facultad de Ciencias Agrarias, CONICET, UNCuyo, Almirante Brown 500, Chacras de Coria M5528AHB, Argentina
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Perdicaro DJ, Rodriguez Lanzi C, Fontana AR, Antoniolli A, Piccoli P, Miatello RM, Diez ER, Vazquez Prieto MA. Grape pomace reduced reperfusion arrhythmias in rats with a high-fat-fructose diet. Food Funct 2017; 8:3501-3509. [DOI: 10.1039/c7fo01062a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Metabolic syndrome (MetS) is a risk factor of sudden cardiac death. GP containing bioactive compounds prevents/attenuates MetS-associated cardiovascular pathologies.
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Affiliation(s)
- Diahann J. Perdicaro
- Area de Fisiopatología
- Facultad de Ciencias Médicas
- Universidad Nacional de Cuyo e Instituto de Medicina y Biología Experimental de Cuyo (IMBECU)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
- Mendoza
- Argentina
| | - Cecilia Rodriguez Lanzi
- Area de Fisiopatología
- Facultad de Ciencias Médicas
- Universidad Nacional de Cuyo e Instituto de Medicina y Biología Experimental de Cuyo (IMBECU)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
- Mendoza
- Argentina
| | - Ariel R. Fontana
- Laboratorio de Bioquímica Vegetal
- Instituto de Biología Agrícola de Mendoza (IBAM)
- CONICET y Facultad de Ciencias Agrarias
- Universidad Nacional de Cuyo
- Mendoza
| | - Andrea Antoniolli
- Laboratorio de Bioquímica Vegetal
- Instituto de Biología Agrícola de Mendoza (IBAM)
- CONICET y Facultad de Ciencias Agrarias
- Universidad Nacional de Cuyo
- Mendoza
| | - Patricia Piccoli
- Laboratorio de Bioquímica Vegetal
- Instituto de Biología Agrícola de Mendoza (IBAM)
- CONICET y Facultad de Ciencias Agrarias
- Universidad Nacional de Cuyo
- Mendoza
| | - Roberto M. Miatello
- Area de Fisiopatología
- Facultad de Ciencias Médicas
- Universidad Nacional de Cuyo e Instituto de Medicina y Biología Experimental de Cuyo (IMBECU)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
- Mendoza
- Argentina
| | - Emiliano R. Diez
- Area de Fisiopatología
- Facultad de Ciencias Médicas
- Universidad Nacional de Cuyo e Instituto de Medicina y Biología Experimental de Cuyo (IMBECU)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
- Mendoza
- Argentina
| | - Marcela A. Vazquez Prieto
- Area de Fisiopatología
- Facultad de Ciencias Médicas
- Universidad Nacional de Cuyo e Instituto de Medicina y Biología Experimental de Cuyo (IMBECU)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
- Mendoza
- Argentina
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Alonso R, Berli FJ, Fontana A, Piccoli P, Bottini R. Malbec grape (Vitis vinifera L.) responses to the environment: Berry phenolics as influenced by solar UV-B, water deficit and sprayed abscisic acid. Plant Physiol Biochem 2016; 109:84-90. [PMID: 27642694 DOI: 10.1016/j.plaphy.2016.09.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 08/29/2016] [Accepted: 09/08/2016] [Indexed: 05/26/2023]
Abstract
High-altitude vineyards receive elevated solar ultraviolet-B (UV-B) levels so producing high quality berries for winemaking because of induction in the synthesis of phenolic compounds. Water deficit (D) after veraison, is a commonly used tool to regulate berry polyphenols concentration in red wine cultivars. Abscisic acid (ABA) plays a crucial role in the acclimation to environmental factors/signals (including UV-B and D). The aim of the present study was to evaluate independent and interactive effects of high-altitude solar UV-B, moderate water deficit and ABA applications on Vitis vinifera cv. Malbec berries. The experiment was conducted during two growing seasons with two treatments of UV-B (+UV-B and -UV-B), watering (+D and -D) and ABA (+ABA and -ABA), in a factorial design. Berry fresh weight, sugar content, fruit yield, phenolic compounds profile and antioxidant capacity (ORAC) were analyzed at harvest. Previous incidence of high UV-B prevented deleterious effects of water deficit, i.e. berry weight reduction and diminution of sugar accumulation. High UV-B increased total phenols (mainly astilbin, quercetin and kaempferol) and ORAC, irrespectively of the combination with other factors. Fruit yield was reduced by combining water deficit and high UV-B or water deficit and ABA. Two applications of ABA were enough to induced biochemical changes increasing total anthocyanins, especially those with higher antioxidant capacity.
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Affiliation(s)
- Rodrigo Alonso
- Instituto de Biología Agrícola de Mendoza, CONICET-Universidad Nacional de Cuyo, Facultad de Ciencias Agrarias, Almirante Brown 500, M5507 Chacras de Coria, Mendoza, Argentina; Catena Institute of Wine, Bodega Catena Zapata, Cobos s/n, M5509, Agrelo, Mendoza, Argentina.
| | - Federico J Berli
- Instituto de Biología Agrícola de Mendoza, CONICET-Universidad Nacional de Cuyo, Facultad de Ciencias Agrarias, Almirante Brown 500, M5507 Chacras de Coria, Mendoza, Argentina
| | - Ariel Fontana
- Instituto de Biología Agrícola de Mendoza, CONICET-Universidad Nacional de Cuyo, Facultad de Ciencias Agrarias, Almirante Brown 500, M5507 Chacras de Coria, Mendoza, Argentina
| | - Patricia Piccoli
- Instituto de Biología Agrícola de Mendoza, CONICET-Universidad Nacional de Cuyo, Facultad de Ciencias Agrarias, Almirante Brown 500, M5507 Chacras de Coria, Mendoza, Argentina
| | - Rubén Bottini
- Instituto de Biología Agrícola de Mendoza, CONICET-Universidad Nacional de Cuyo, Facultad de Ciencias Agrarias, Almirante Brown 500, M5507 Chacras de Coria, Mendoza, Argentina
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Salomon MV, Purpora R, Bottini R, Piccoli P. Rhizosphere associated bacteria trigger accumulation of terpenes in leaves of Vitis vinifera L. cv. Malbec that protect cells against reactive oxygen species. Plant Physiol Biochem 2016; 106:295-304. [PMID: 27231874 DOI: 10.1016/j.plaphy.2016.05.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 04/07/2016] [Accepted: 05/04/2016] [Indexed: 06/05/2023]
Abstract
It has been proposed that plant growth promoting rhizobacteria (PGPR) stimulate plant growth and development by inducing the biosynthesis of secondary metabolites, like terpenes, which reduce stress incidence. Three bacteria previously isolated from grapevine roots and adjacent soil (Microbacterium imperiale Rz19M10, Kocuria erythromyxa Rt5M10 and Terribacillus saccharophilus Rt17M10) were tested as PGPR. After 30 days since root inoculation of in vitro grown Vitis vinifera cv. Malbec plants, the monoterpenes α-pinene, terpinolene and 4-carene, and the sesquiterpene nerolidol were detected only in bacterized-plant leaves. Also, the concentrations of the diterpenes α and γ-tocopherol, and the sterols sitosterol and lupeol were significantly enhanced compared to controls. The leaf extracts of bacterized plants showed photoprotective properties since they decreased the oxygen consumption (that is photo-oxidation) of the amino acid tryptophan in a sensitized solution, thus indicating an increment of the antioxidant capacity of the tissues. In addition, experiments with α-pinene and nerolidol standards showed the capability to intercept reactive oxygen species in the sensitized solution. Moreover, bacterized plants infected with the pathogen Botrytis cinerea showed a reduction in the lesion diameter compared with non-bacterized plants. The results suggest that M. imperiale, K. erythromyxa and mainly T. saccharophilus are able to induce a systemic response that trigger increases on monoterpenes, sesquiterpenes, tocopherols and membrane sterols. These compounds enhance the antioxidant capacity in leaf tissues that may help grapevine to cope with stresses.
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Affiliation(s)
- María Victoria Salomon
- Laboratorio de Bioquímica Vegetal, Instituto de Biología Agrícola de Mendoza, Consejo Nacional de Investigaciones Científicas y Técnicas-Universidad Nacional de Cuyo, Almirante Brown 500, Chacras de Coria, Mendoza, Argentina.
| | - Rebeca Purpora
- Laboratorio de Bioquímica Vegetal, Instituto de Biología Agrícola de Mendoza, Consejo Nacional de Investigaciones Científicas y Técnicas-Universidad Nacional de Cuyo, Almirante Brown 500, Chacras de Coria, Mendoza, Argentina.
| | - Rubén Bottini
- Laboratorio de Bioquímica Vegetal, Instituto de Biología Agrícola de Mendoza, Consejo Nacional de Investigaciones Científicas y Técnicas-Universidad Nacional de Cuyo, Almirante Brown 500, Chacras de Coria, Mendoza, Argentina.
| | - Patricia Piccoli
- Laboratorio de Bioquímica Vegetal, Instituto de Biología Agrícola de Mendoza, Consejo Nacional de Investigaciones Científicas y Técnicas-Universidad Nacional de Cuyo, Almirante Brown 500, Chacras de Coria, Mendoza, Argentina.
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Pontin M, Bottini R, Burba JL, Piccoli P. Allium sativum produces terpenes with fungistatic properties in response to infection with Sclerotium cepivorum. Phytochemistry 2015; 115:152-60. [PMID: 25819001 DOI: 10.1016/j.phytochem.2015.02.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Revised: 12/11/2014] [Accepted: 02/04/2015] [Indexed: 05/28/2023]
Abstract
This study investigated terpene biosynthesis in different tissues (root, protobulb, leaf sheath and blade) of in vitro-grown garlic plants either infected or not (control) with Sclerotium cepivorum, the causative agent of Allium White Rot disease. The terpenes identified by gas chromatography-electron impact mass spectrometry (GC-EIMS) in infected plants were nerolidol, phytol, squalene, α-pinene, terpinolene, limonene, 1,8-cineole and γ-terpinene, whose levels significantly increased when exposed to the fungus. Consistent with this, an increase in terpene synthase (TPS) activity was measured in infected plants. Among the terpenes identified, nerolidol, α-pinene and terpinolene were the most abundant with antifungal activity against S. cepivorum being assessed in vitro by mycelium growth inhibition. Nerolidol and terpinolene significantly reduced sclerotia production, while α-pinene stimulated it in a concentration-dependent manner. Parallel to fungal growth inhibition, electron microscopy observations established morphological alterations in the hyphae exposed to terpinolene and nerolidol. Differences in hyphal EtBr uptake suggested that one of the antifungal mechanisms of nerolidol and terpinolene might be disruption of fungal membrane integrity.
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Affiliation(s)
- Mariela Pontin
- Estación Experimental Agropecuaria La Consulta-Instituto Nacional de Tecnología Agropecuaria, CC8, 5567 La Consulta, Mendoza, Argentina; Laboratorio de Bioquímica Vegetal, Instituto de Biología Agrícola de Mendoza, Consejo Nacional de Investigaciones Científicas y Tecnológicas-Universidad Nacional de Cuyo, Almirante Brown 500, M5528AHB Chacras de Coria, Mendoza, Argentina.
| | - Rubén Bottini
- Laboratorio de Bioquímica Vegetal, Instituto de Biología Agrícola de Mendoza, Consejo Nacional de Investigaciones Científicas y Tecnológicas-Universidad Nacional de Cuyo, Almirante Brown 500, M5528AHB Chacras de Coria, Mendoza, Argentina.
| | - José Luis Burba
- Estación Experimental Agropecuaria La Consulta-Instituto Nacional de Tecnología Agropecuaria, CC8, 5567 La Consulta, Mendoza, Argentina.
| | - Patricia Piccoli
- Laboratorio de Bioquímica Vegetal, Instituto de Biología Agrícola de Mendoza, Consejo Nacional de Investigaciones Científicas y Tecnológicas-Universidad Nacional de Cuyo, Almirante Brown 500, M5528AHB Chacras de Coria, Mendoza, Argentina.
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Antoniolli A, Fontana AR, Piccoli P, Bottini R. Characterization of polyphenols and evaluation of antioxidant capacity in grape pomace of the cv. Malbec. Food Chem 2015; 178:172-8. [DOI: 10.1016/j.foodchem.2015.01.082] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2014] [Revised: 01/16/2015] [Accepted: 01/17/2015] [Indexed: 01/03/2023]
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Alonso R, Berli FJ, Bottini R, Piccoli P. Acclimation mechanisms elicited by sprayed abscisic acid, solar UV-B and water deficit in leaf tissues of field-grown grapevines. Plant Physiol Biochem 2015; 91:56-60. [PMID: 25885355 DOI: 10.1016/j.plaphy.2015.03.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Accepted: 03/27/2015] [Indexed: 05/07/2023]
Abstract
The independent and interactive effects of solar ultraviolet-B radiation (UV-B), moderate water deficit and sprayed abscisic acid (ABA) on leaves gas exchange and biochemical aspects of field-grown grapevines of the cv. Malbec were investigated in a high altitude vineyard (1450 m a.s.l.). Two UV-B treatments (ambient solar UV-B or reduced UV-B), two watering treatments (well watered or moderate water deficit) and two ABA treatments (no ABA and sprayed ABA) were given alone and combined in a factorial design. Gas exchange and photosynthesis were reduced by water deficit and highly impaired in the UV-B and water deficit combined treatment. UV-absorbing compounds were stimulated independently by UV-B. The monoterpenes α-pinene, 3-carene and terpinolene, and the sesquiterpene nerolidol were augmented by UV-B, water deficit or sprayed ABA. Levels of the triterpene squalene and the diterpene phytol were significantly higher in the treatment that combined UV-B, water deficit and ABA applications. Environment signals (solar UV-B and moderate water deficit) and sprayed ABA elicited mechanisms of acclimation by augmenting the content of terpenes with antioxidant and antifungal properties, thus enhancing the plant defensive mechanisms towards signals both biotic and abiotic.
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Affiliation(s)
- Rodrigo Alonso
- Laboratorio de Bioquímica Vegetal, Instituto de Biología Agrícola de Mendoza, Facultad de Ciencias Agrarias, CONICET-Universidad Nacional de Cuyo, Almirante Brown 500, M5528AHB, Chacras de Coria, Mendoza, Argentina; Catena Institute of Wine, Bodega Catena Zapata, Cobos s/n, M5509, Agrelo, Mendoza, Argentina.
| | - Federico J Berli
- Laboratorio de Bioquímica Vegetal, Instituto de Biología Agrícola de Mendoza, Facultad de Ciencias Agrarias, CONICET-Universidad Nacional de Cuyo, Almirante Brown 500, M5528AHB, Chacras de Coria, Mendoza, Argentina
| | - Rubén Bottini
- Laboratorio de Bioquímica Vegetal, Instituto de Biología Agrícola de Mendoza, Facultad de Ciencias Agrarias, CONICET-Universidad Nacional de Cuyo, Almirante Brown 500, M5528AHB, Chacras de Coria, Mendoza, Argentina
| | - Patricia Piccoli
- Laboratorio de Bioquímica Vegetal, Instituto de Biología Agrícola de Mendoza, Facultad de Ciencias Agrarias, CONICET-Universidad Nacional de Cuyo, Almirante Brown 500, M5528AHB, Chacras de Coria, Mendoza, Argentina
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Pedica F, Beccari S, Pedron S, Montagna L, Piccoli P, Doglioni C, Chilosi M. PDX-1 (pancreatic/duodenal homeobox-1 protein 1). Pathologica 2014; 106:315-21. [PMID: 25845046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023] Open
Abstract
The homeodomain-containing transcription factor pancreatic duodenal homeobox 1 (PDX-1) plays a key role in pancreatic development and β-cell function. It is a major regulator of transcription in pancreatic cells, and transactivates the insulin gene by binding to a specific DNA motif in its promoter region. Glucose also regulates insulin gene transcription through PDX-1. It has been shown that PDX-1 is required for maintaining pancreatic islet functions by activating gene expression and has a dual role in pancreatic development. It initially contributes to pancreatic formation during embryogenesis and subsequently regulates the pancreatic islet cell physiology in mature islet cells. Because of this key role in the embryologic development of the pancreas, PDX-1 expression has been investigated in pancreatic cancer cell lines and human tumors. Moreover, a few reports have described expression of PDX-1 in other human neoplasms and have investigated its potential role in differential diagnosis, but data on normal human tissues are lacking. Understanding the molecular mechanisms of pancreas formation, and especially the function of PDX-1, may contribute to the improved treatment and prevention of debilitating diseases such as diabetes, insulinomas and pancreatic carcinomas. Nevertheless, further studies are needed concerning its possible application in routine practice.
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Salomon MV, Bottini R, de Souza Filho GA, Cohen AC, Moreno D, Gil M, Piccoli P. Bacteria isolated from roots and rhizosphere of Vitis vinifera retard water losses, induce abscisic acid accumulation and synthesis of defense-related terpenes in in vitro cultured grapevine. Physiol Plant 2014; 151:359-74. [PMID: 24118032 DOI: 10.1111/ppl.12117] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Accepted: 10/01/2013] [Indexed: 05/20/2023]
Abstract
Eleven bacterial strains were isolated at different soil depths from roots and rhizosphere of grapevines from a commercial vineyard. By 16S rRNA gene sequencing 10 different genera and 8 possible at species level were identified. From them, Bacillus licheniformis Rt4M10 and Pseudomonas fluorescens Rt6M10 were selected according to their characteristics as plant growth promoting rhizobacteria (PGPR). Both produced abscisic acid (ABA), indole-3-acetic acid (IAA) and the gibberellins A1 and A3 in chemically-defined medium. They also colonized roots of in vitro grown Vitis vinifera cv. Malbec plants. As result of bacterization ABA levels in 45 days-old in vitro plants were increased 76-fold by B. licheniformis and 40-fold by P. fluorescens as compared to controls. Both bacteria diminished plant water loss rate in correlation with increments of ABA. Twenty and 30 days post bacterization the plants incremented terpenes. The monoterpenes α-pinene, terpinolene, 4-carene, limonene, eucalyptol and lilac aldehyde A, and the sesquiterpenes α-bergamotene, α-farnesene, nerolidol and farnesol were assessed by gas chromatography-electron impact mass spectrometry analysis. α-Pinene and nerolidol were the most abundant (µg per g of tissue in plants bacterized with P. fluorescens). Only α-pinene, eucalyptol and farnesol were identified at low concentration in non-bacterized plants treated with ABA, while no terpenes were detected in controls. The results obtained along with others from literature suggest that B. licheniformis and P. fluorescens act as stress alleviators by inducing ABA synthesis so diminishing water losses. These bacteria also elicit synthesis of compounds of plant defense via an ABA independent mechanism.
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Affiliation(s)
- María Victoria Salomon
- Laboratorio de Bioquímica Vegetal, Instituto de Biología Agrícola de Mendoza, Consejo Nacional de Investigaciones Científicas y Técnicas-Universidad Nacional de Cuyo, Chacras de Coria, Argentina
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Gil M, Bottini R, Berli F, Pontin M, Silva MF, Piccoli P. Volatile organic compounds characterized from grapevine (Vitis vinifera L. cv. Malbec) berries increase at pre-harvest and in response to UV-B radiation. Phytochemistry 2013; 96:148-57. [PMID: 24075072 DOI: 10.1016/j.phytochem.2013.08.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2013] [Revised: 07/31/2013] [Accepted: 08/20/2013] [Indexed: 05/09/2023]
Abstract
Ultraviolet-B solar radiation (UV-B) is an environmental signal with biological effects in plant tissues. Recent investigations have assigned a protective role of volatile organic compounds (VOCs) in plant tissues submitted to biotic and abiotic stresses. This study investigated VOCs in berries at three developmental stages (veraison, pre-harvest and harvest) of Vitis vinifera L. cv. Malbec exposed (or not) to UV-B both, in in vitro and field experiments. By Head Space-Solid Phase Micro Extraction-Gas Chromatography-Electron Impact Mass Spectrometry (HS-SPME-GC-EIMS) analysis, 10 VOCs were identified at all developmental stages: four monoterpenes, three aldehydes, two alcohols and one ketone. Monoterpenes increased at pre-harvest and in response to UV-B in both, in vitro and field conditions. UV-B also augmented levels of some aldehydes, alcohols and ketones. These results along with others from the literature suggest that UV-B induce grape berries to produce VOCs (mainly monoterpenes) that protect the tissues from UV-B itself and other abiotic and biotic stresses, and could affect the wine flavor. Higher emission of monoterpenes was observed in the field experiments as compared in vitro, suggesting the UV-B/PAR ratio is not a signal in itself.
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Affiliation(s)
- Mariana Gil
- Laboratorio de Bioquímica Vegetal, Instituto de Biología Agrícola de Mendoza, Consejo Nacional de Investigaciones Científicas y Tecnológicas-Universidad Nacional de Cuyo, Almirante Brown 500, M5528AHB Chacras de Coria, Argentina
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Frattini F, Bonfanti C, Piccoli P, Camurri N, Mantovani P, Terenziani I, Caramaschi G, Rambaldini M, Manzato F, Franchini M. Triple coronary artery bypass graft surgery in a patient with factor VII deficiency: a case report. Haemophilia 2013; 19:e268-9. [DOI: 10.1111/hae.12164] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/31/2013] [Indexed: 11/28/2022]
Affiliation(s)
- F. Frattini
- UO Immunoematologia e Medicina Trasfusionale; Azienda Ospedaliera Carlo Poma; Mantova; Italy
| | - C. Bonfanti
- UO Immunoematologia e Medicina Trasfusionale; Azienda Ospedaliera Carlo Poma; Mantova; Italy
| | - P. Piccoli
- UO Cardiochirurgia; Azienda Ospedaliera Carlo Poma; Mantova; Italy
| | - N. Camurri
- UO Cardiochirurgia; Azienda Ospedaliera Carlo Poma; Mantova; Italy
| | - P. Mantovani
- UO Cardiologia; Azienda Ospedaliera Carlo Poma; Mantova; Italy
| | - I. Terenziani
- UO Laboratorio Analisi Chimico-Cliniche; Azienda Ospedaliera Carlo Poma; Mantova; Italy
| | - G. Caramaschi
- UO Laboratorio Analisi Chimico-Cliniche; Azienda Ospedaliera Carlo Poma; Mantova; Italy
| | - M. Rambaldini
- UO Cardiochirurgia; Azienda Ospedaliera Carlo Poma; Mantova; Italy
| | - F. Manzato
- UO Laboratorio Analisi Chimico-Cliniche; Azienda Ospedaliera Carlo Poma; Mantova; Italy
| | - M. Franchini
- UO Immunoematologia e Medicina Trasfusionale; Azienda Ospedaliera Carlo Poma; Mantova; Italy
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Gil M, Pontin M, Berli F, Bottini R, Piccoli P. Metabolism of terpenes in the response of grape (Vitis vinifera L.) leaf tissues to UV-B radiation. Phytochemistry 2012; 77:89-98. [PMID: 22277733 DOI: 10.1016/j.phytochem.2011.12.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2011] [Revised: 11/28/2011] [Accepted: 12/14/2011] [Indexed: 05/04/2023]
Abstract
This study investigated the terpene profiles as determined by GC-EIMS analysis of in vitro cultured plants of Vitis vinifera exposed to a "field-like" dose of UV-B (4.75 kJ m(-2)d(-1)) administered at two different fluence rates (low, 16 h at 8.25 μW cm(-2), and high 4 h at 33 μW cm(-2)). Low UV-B treatment increased levels of the membrane-related triterpenes sitosterol, stigmasterol and lupeol, more notable in young leaves, suggesting elicitation of a mechanism for grapevine acclimation. By contrast, accumulation of compounds with antioxidant properties, diterpenes α and γ tocopherol and phytol, the sesquiterpene E-nerolidol and the monoterpenes carene, α-pinene and terpinolene had maximum accumulation under high UV-B, which was accentuated in mature leaves. Also the levels of the sesquiterpenic stress-related hormone abscisic acid (ABA) increased under high UV-B, although 24 h post irradiation ABA concentrations decreased. Such increments of antioxidant terpenes along with ABA suggest elicitation of mechanism of defense. The adaptative responses induced by relatively low UV-B irradiations as suggested by synthesis of terpenes related with membrane stability correlated with augments in terpene synthase activity.
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Affiliation(s)
- Mariana Gil
- Laboratorio de Bioquímica Vegetal, Instituto de Biología Agrícola de Mendoza, Consejo Nacional de Investigaciones Científicas y Tecnológicas-Universidad Nacional de Cuyo, Almirante Brown 500, M5528AHB Chacras de Coria, Argentina
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Berli FJ, Fanzone M, Piccoli P, Bottini R. Solar UV-B and ABA are involved in phenol metabolism of Vitis vinifera L. increasing biosynthesis of berry skin polyphenols. J Agric Food Chem 2011; 59:4874-84. [PMID: 21469737 DOI: 10.1021/jf200040z] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
It has been previously found that abscisic acid (ABA) participates in the activation of grapevine leaf tissue defense against potentially damaging effects of solar ultraviolet-B radiation (UV-B), apparently by triggering biosynthesis of phenols that filter the harmful radiation and act as antioxidants. The present work studies the effect of solar UV-B and exogenously applied ABA on berry growth, sugar accumulation, and phenol (anthocyanin and nonanthocyanin) profiles across berry development and ripening of Vitis vinifera L. cv. Malbec in a vineyard at 1450 m of altitude. The grapevines were exposed to relatively high UV-B irradiation (normal sunlight; +UV-B) and also to a reduced UV-B treatment (filter exclusion; -UV-B). These two UV-B treatments were combined with weekly spray applications to the leaves and berries of 1 mM ABA (+ABA) or H(2)O (-ABA). Reduction of UV-B delayed berry development and maturation, whereas the +UV-B and +ABA combined treatment hastened berry sugar and phenol accumulation. +UV-B/+ABA treatments also reduced berry growth and decreased sugar per berry without affecting sugar concentration (°Brix) at harvest. Berry skin ABA levels were higher in the +UV-B and +ABA combined treatment, which also hastened the onset of ripening up to 20 days. Berry skin ABA levels then decreased toward harvest, implying a possible role for ABA in the control of ripening in this nonclimacteric fruit. Under both +UV-B and +ABA treatments berry skin phenols were additively increased with a change in anthocyanin and nonanthocyanin profiles and increases in the proportion of phenols with high antioxidant capacity.
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Affiliation(s)
- Federico J Berli
- Instituto de Biología Agrícola de Mendoza, Facultad de Ciencias Agrarias, CONICET-Universidad Nacional de Cuyo, Chacras de Coria, Mendoza, Argentina
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Devine DV, Sher GD, Reesink HW, Panzer S, Hetzel PAS, Wong JK, Horvath M, Leitner GC, Schennach H, Nussbaumer W, Genoe K, Cioffi JM, Givisiez FN, Rogerson M, Howe D, Delage G, Sarappa C, Fu Y, Sarlija D, Vuk T, Strauss Patko M, Balija M, Jukić I, Ali A, Auvinen MK, Jaakonsalo E, Cazenave JP, Waller C, Kientz D, David B, Walther-Wenke G, Heiden M, Lin CK, Tsoi WC, Lee CK, Barotine-Toth K, Sawant RB, Murphy W, Quirke B, Bowler P, Shinar E, Yahalom V, Aprili G, Piccoli P, Gandini G, Tadokaro K, Nadarajan VS, de Kort W, Jansen N, Flanagan P, Forsberg PO, Hervig T, Letowska M, Lachert E, Dudziak K, Antoniewicz-Papis J, de Olim G, Nascimento F, Hindawi S, Teo D, Reddy R, Scholtz J, Swanevelder R, Rovira LP, Sauleda S, Carasa MAV, Vaquero MP, Ania MA, Gulliksson H, Holdsworth S, Cotton S, Howell C, Baldwin C, Cusick RM, Geele GA, Paden C, McEvoy P, Gottschall JL, McLaughlin LS, Benjamin RJ, Eder A, Draper NL, AuBuchon JP, León de González G. Inventory management. Vox Sang 2010; 98:e295-363. [PMID: 20432515 DOI: 10.1111/j.1423-0410.2009.01252.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
A critical aspect of blood transfusion is the timely provision of high quality blood products. This task remains a significant challenge for many blood services and blood systems reflecting the difficulty of balancing the recruitment of sufficient donors, the optimal utilization of the donor's gift, the increasing safety related restrictions on blood donation, a growing menu of specialized blood products and an ever-growing imperative to increase the efficiency of blood product provision from a cost perspective. As our industry now faces questions about our standard practices including whether or not the age of blood has a negative impact on recipients, it is timely to take a look at our collective inventory management practices. This International Forum represents an effort to get a snap shot of inventory management practices around the world, and to understand the range of different products provided for patients. In addition to sharing current inventory management practices, this Forum is intended to foster an exchange of ideas around where we see our field moving with respect to various issues including specialty products, new technologies, and reducing recipient risk from blood transfusion products.
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Piccoli P, Carrieri M, Padovano L, Di Mare M, Bartolucci G, Fracasso M, Lepera J, Manno M. In vivo CYP2E1 phenotyping as a new potential biomarker of occupational and experimental exposure to benzene. Toxicol Lett 2010; 192:29-33. [DOI: 10.1016/j.toxlet.2009.10.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2009] [Accepted: 10/21/2009] [Indexed: 10/20/2022]
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Berli FJ, Moreno D, Piccoli P, Hespanhol-Viana L, Silva MF, Bressan-Smith R, Cavagnaro JB, Bottini R. Abscisic acid is involved in the response of grape (Vitis vinifera L.) cv. Malbec leaf tissues to ultraviolet-B radiation by enhancing ultraviolet-absorbing compounds, antioxidant enzymes and membrane sterols. Plant Cell Environ 2010; 33:1-10. [PMID: 19781012 DOI: 10.1111/j.1365-3040.2009.02044.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
We investigated the interactions of abscisic acid (ABA) in the responses of grape leaf tissues to contrasting ultraviolet (UV)-B treatments. One-year-old field-grown plants of Vitis vinifera L. were exposed to photosynthetically active radiation (PAR) where solar UV-B was eliminated by using polyester filters, or where PAR was supplemented with UV-B irradiation. Treatments combinations included weekly foliar sprays of ABA or a water control. The levels of UV-B absorbing flavonols, quercetin and kaempferol were significantly decreased by filtering out UV-B, while applied ABA increased their content. Concentration of two hydroxycinnamic acids, caffeic and ferulic acids, were also increased by ABA, but not affected by plus UV-B (+UV-B) treatments. Levels of carotenoids and activities of the antioxidant enzymes, catalase, ascorbate peroxidase and peroxidase were elevated by +ABA treatments, but only if +UV-B was given. Cell membrane beta-sitosterol was enhanced by ABA independently of +UV-B. Changes in photoprotective compounds, antioxidant enzymatic activities and sterols were correlated with lessened membrane harm by UV-B, as assessed by ion leakage. Oxidative damage expressed as malondialdehyde content was increased under +UV-B treatments. Our results suggest that the defence system of grape leaf tissues against UV-B is activated by UV-B irradiation with ABA acting downstream in the signalling pathway.
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Affiliation(s)
- Federico J Berli
- Facultad de Ciencias Agrarias-CONICET, Universidad Nacional de Cuyo, Almirante Brown 500, Chacras de Coria, Argentina
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Hoffmann C, Bau R, Schultz A, Koetzle T, Piccoli P. TOPAZ: a new time-of-flight Laue diffractometer for new science. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308094051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Engelfriet CP, Reesink HW, Fontão-Wendel R, Lazar A, Cardoso RA, Olyntho S, Achkar R, Wendel S, Pisacka M, Taaning E, Koski T, Matilainen J, Kretschmer V, Karger R, Politis C, Katsea P, Malamou V, Aprili G, Piccoli P, Gandini G, Franchini M, Schonewille H, Brand A, Solheim BG, Flesland O, Seyfried H, Michalewska B, Letowska M, Tissot JD, Milkins C, Knowles S, DeSilva M, Contreras M, Stainsby D, Combs MR, Arney RS, Telen MJ. Prevention and diagnosis of delayed haemolytic transfusion reactions. Vox Sang 2006; 91:353-68. [PMID: 17105616 DOI: 10.1111/j.1423-0410.2006.00812_1.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- C P Engelfriet
- Sanguin Research and Sanquin Diagnostic Services, Amsterdam, The Netherlands
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Aprili G, Piccoli P, Gandini G, Franchini M. Prevention and diagnosis of delayed haemolytic transfusion reactions. Vox Sang 2006. [DOI: 10.1111/j.1423-0410.2006.00812_8.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Fontão-Wendel R, Lazar A, Cardoso RA, Olyntho S, Achkar R, Wendel S, Pisacka M, Taaning E, Koski T, Matilainen J, Kretschmer V, Karger R, Politis C, Katsea P, Malamou V, Aprili G, Piccoli P, Gandini G, Franchini M, Schonewille H, Brand A, Solheim BG, Flesland O, Seyfried H, Michalewska B, Letowska M, Tissot JD, Milkins C, Knowles S, DeSilva M, Contreras M, Stainsby D, Combs MR, Arney RS, Telen MJ. Prevention and diagnosis of delayed haemolytic transfusion reactions. Vox Sang 2006. [DOI: 10.1111/j.1423-0410.2006.00812.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Codecasa LR, Ferrarese M, Penati V, Lacchini C, Cirillo D, Scarparo C, Piccoli P, Piersimoni C, Migliori GB. Comparison of tuberculin skin test and Quantiferon immunological assay for latent tuberculosis infection. Monaldi Arch Chest Dis 2005; 63:158-62. [PMID: 16312206 DOI: 10.4081/monaldi.2005.634] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Correct identification of individuals with latent tuberculosis infection (LTBI) is a crucial element of the elimination strategy, allowing their adequate treatment. In addition to tuberculin skin test (TST), the Quantiferon test (QFT, based on whole blood gamma-interferon release) had been recently proposed. Aim of the study is to compare this test to TST for identification of LTBI in a non-selected population, in order to verify their value in identifying truly infected individuals (entitled to receive preventive chemotherapy), and to exclude from treatment those having a positive TST for other reasons (e.g. after BCG vaccination). METHODS 136 consecutive persons (78 males, mean age 34 +/- 9 years) referred to the clinic for TST were recruited (78 born in low--or middle--income countries). Based on their history, the cases were divided into 4 groups: 1) recently traced contacts of whom 18 TST negative and 28 TST positive; 2) 22 screening subjects, all TST negative; 3) BCG vaccinated subjects (14); and 4) 54 subjects already undergoing treatment of LTBI for exposure to TB. RESULTS The overall agreement between TST and QFT was 72% (64% in TST positive and 88.4% in TST negative subjects). The proportion of TST positive/QFT negative BCG vaccinated individuals was 23.1%. The K coefficient was 0.474 in recently traced contacts, 0.366 in BCG vaccinated individuals and 0.451 overall. CONCLUSIONS The study results suggest that agreement between TST and QFT is lower in TST positive than in negative subjects, being lower in individuals treated for LTBI. Quantiferon does not seem to have brought significant improvement in the diagnosis of LTBI.
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Affiliation(s)
- L R Codecasa
- Lombardia Region TB Reference Clinic and Laboratory, Villa Marelli Institute, Niguarda Hospital, Milano, Italy
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Hoffmann C, Stoica A, Schultz A, Piccoli P, Bau R, Koetzle T. Advances in neutron single crystal diffraction towards a smaller sample sizes. Acta Crystallogr A 2005. [DOI: 10.1107/s0108767305093864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Tortoli E, Rindi L, Bartoloni A, Garzelli C, Manfrin V, Mantella A, Piccoli P, Scarparo C. Isolation of a novel sequevar of Mycobacterium flavescens from the synovial fluid of an AIDS patient. Clin Microbiol Infect 2005; 10:1017-9. [PMID: 15522008 DOI: 10.1111/j.1469-0961.2004.00947.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This report describes the characterisation of a mycobacterium involved in a case of septic arthritis in an AIDS patient that was treated successfully with specific anti-mycobacterial drugs. The biochemical and cultural features, and the mycolic acid pattern as assessed by high-performance liquid chromatography, were fully compatible with the isolate being Mycobacterium flavescens. However, the isolate's 16S rDNA sequence differed by five nucleotides from the two known sequevars of M. flavescens, thus indicating that this isolate belonged to a new 16S rDNA sequevar.
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Affiliation(s)
- E Tortoli
- Regional Reference Centre for Mycobacteria, Microbiology and Virology Laboratory, Careggi Hospital, Florence, Italy.
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Bottini R, Cassán F, Piccoli P. Gibberellin production by bacteria and its involvement in plant growth promotion and yield increase. Appl Microbiol Biotechnol 2004; 65:497-503. [PMID: 15378292 DOI: 10.1007/s00253-004-1696-1] [Citation(s) in RCA: 155] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2004] [Revised: 06/08/2004] [Accepted: 06/11/2004] [Indexed: 10/26/2022]
Abstract
This review focuses on studies with bacteria for which biosynthesis/production of the plant hormones gibberellins have been demonstrated. Actual data on gibberellin metabolism by bacteria are analyzed in comparison with the biosynthetic pathways known for vascular plants and fungi. The potential involvement of gibberellins produced by symbiotic and soil-endophytic microorganisms in plant growth promotion and yield increase is also discussed.
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Affiliation(s)
- Rubén Bottini
- Cátedra de Química Orgánica y Biológica, Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, 5505, Chacras de Coria, Argentina.
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Tortoli E, Rindi L, Bartoloni A, Garzelli C, Mantella A, Mazzarelli G, Piccoli P, Scarparo C. Mycobacterium elephantis: not an exceptional finding in clinical specimens. Eur J Clin Microbiol Infect Dis 2003; 22:427-30. [PMID: 12827531 DOI: 10.1007/s10096-003-0950-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Following the recent report of new 16S rDNA sequences of Mycobacterium elephantis, three clinical strains suspected to belong to such species were investigated using biochemical and cultural tests, high performance liquid chromatography of cell wall mycolic acids and genetic sequencing. Antimicrobial susceptibility was also determined. The findings confirmed recent data concerning human isolates of this new mycobacterium and identified a new 16S rDNA sequevar for this species.
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Affiliation(s)
- E Tortoli
- Regional Reference Center for Mycobacteria, Microbiology and Virology Laboratory, Piastra dei Servizi, Careggi Hospital, viale Morgagni 85, 50134 Florence, Italy.
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Scarparo C, Piccoli P, Ricordi P, Scagnelli M. Comparative evaluation of two commercial chromogenic media for detection and presumptive identification of urinary tract pathogens. Eur J Clin Microbiol Infect Dis 2002; 21:283-9. [PMID: 12072939 DOI: 10.1007/s10096-002-0718-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The performance of two commercial chromogenic media for the isolation and presumptive identification of urinary tract pathogens, the CPS ID2 (bioMérieux, France) and the CHROMagar Orientation (BBL Becton Dickinson, USA), was evaluated and compared with that of cystine-lactose-electrolyte-deficient agar and tryptic soy agar with 5% sheep blood. The detection, determination of bacterial counts, and presumptive identification of bacteria causing urinary tract infections were evaluated in 3,000 urine specimens. The two chromogenic media showed excellent correlation with the standard media for the detection and the bacterial count of urinary pathogens. The Escherichia coli strains produced the expected colour on the CHROMagar Orientation and the CPS ID2 media in 99% and 90% of the cases, respectively. The Klebsiella-Enterobacter-Citrobacter and the Proteus-Morganella-Providencia groups were easily identified on both chromogenic media, but further biochemical tests were needed to differentiate them to a species level. Both media enabled the differentiation, with varying degrees of difficulty, of Pseudomonas spp. strains from members of the family Enterobacteriaceae. All isolates of Enterococcus spp. were correctly identified and were easily distinguished from the Streptococcus agalactiae isolates. Staphylococcus saprophyticus isolates were easy to identify only on the CHROMagar Orientation medium. No substantial difference was observed when comparing the results of the susceptibility tests, which were performed according to the standardized disk diffusion method as described by the National Committee for Clinical Laboratory Standards, for colonies recovered from the blood agar versus those recovered from the chromogenic media. In conclusion, the CPS ID2 and CHROMagar Orientation media enabled excellent detection, count determination, and presumptive identification of urinary pathogens, both in pure and mixed cultures, and reliable and accurate antimicrobial susceptibility testing directly from primary isolates. Moreover, these media allowed a remarkable reduction in the workload and a significant savings of time. On the basis of their performance, these media can replace the standard primary plating media used in the routine diagnosis of urinary tract infections.
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Affiliation(s)
- C Scarparo
- Laboratory of Clinical Microbiology and Virology, S. Bortolo Hospital, Viale Rodolfi 37, 36100 Vicenza, Italy.
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Scarparo C, Piccoli P, Rigon A, Ruggiero G, Nista D, Piersimoni C. Direct identification of mycobacteria from MB/BacT alert 3D bottles: comparative evaluation of two commercial probe assays. J Clin Microbiol 2001; 39:3222-7. [PMID: 11526154 PMCID: PMC88322 DOI: 10.1128/jcm.39.9.3222-3227.2001] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The new INNO-LiPA Mycobacteria (Innogenetics, Ghent, Belgium), a reverse-hybridization-based line probe assay, and the AccuProbe assay (Gen-Probe Inc., San Diego, Calif.) were applied to MB/BacT Alert 3D (MB/BacT) system (Organon Teknika, Boxtel, The Netherlands) culture bottles and evaluated for mycobacterial identification. From 2,532 respiratory and extrapulmonary specimens submitted for culture, 168 were flagged positive by the MB/BacT system and promptly evaluated for identification (within 24 h). Each of 163 vials grew one mycobacterial isolate, including Mycobacterium tuberculosis complex (n = 73), M. avium complex (n = 3), M. avium (n = 8), M. intracellulare (n = 5), M. kansasii (n = 15), M. gordonae (n = 8), M. malmoense (n = 3), M. chelonae (n = 13), M. abscessus (n = 2), M. xenopi (n = 11), M. scrofulaceum (n = 2), M. fortuitum (n = 7), M. terrae (n = 3), M. simiae (n = 2), M. celatum (n = 3), M. flavescens (n = 1), M. interjectum (n = 1), M. bohemicum (n = 1), and M. pulveris (n = 2). Five cultures yielded mixed growth of two mycobacterial species: M. tuberculosis complex plus M. gordonae (n = 2), M. tuberculosis complex plus M. chelonae (n = 1), M. tuberculosis complex plus M. xenopi (n = 1), and M. avium plus M. chelonae (n = 1). In testing of one-isolate vials, both systems showed excellent sensitivity and specificity for all species and complexes for which they are licensed (nine for INNO-LiPA Mycobacteria versus six for AccuProbe). There were minor discrepancies in results for two isolates identified by INNO-LiPA Mycobacteria as M. avium - M. intracellulare - M. scrofulaceum (MAIS) complex and by AccuProbe as M. intracellulare. In testing of two-isolate vials, INNO-LiPA Mycobacteria correctly identified all isolates, while the AccuProbe assay failed to identify three M. tuberculosis complex isolates and one M. avium isolate. The AccuProbe assay was completed within 2 h, while INNO-LiPA Mycobacteria required a 6-h period. In our opinion, INNO-LiPA Mycobacteria offers the following advantages: (i) it contains a genus-specific probe that, in addition to being used in genus identification, may be used as an internal control for both the amplification and hybridization steps; (ii) it simultaneously identifies M. tuberculosis complex, MAIS complex, and seven other mycobacterial species, even from mixed cultures; (iii) its mycobacterial DNA amplification ensures reliable results independent from the concentration of viable microorganisms; and (iv) it genotypically identifies M. kansasii and M. chelonae. In conclusion, even though INNO-LiPA Mycobacteria is considerably less easy to use than AccuProbe, requiring personnel skilled in molecular biology techniques, it represents an excellent approach for routine identification of frequently encountered mycobacteria.
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Affiliation(s)
- C Scarparo
- Regional Mycobacteria Reference Centre, Laboratory of Clinical Microbiology and Virology, San Bortolo Hospital, Vicenza, Italy.
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40
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Granziero L, Ghia P, Circosta P, Gottardi D, Strola G, Geuna M, Montagna L, Piccoli P, Chilosi M, Caligaris-Cappio F. Survivin is expressed on CD40 stimulation and interfaces proliferation and apoptosis in B-cell chronic lymphocytic leukemia. Blood 2001; 97:2777-83. [PMID: 11313271 DOI: 10.1182/blood.v97.9.2777] [Citation(s) in RCA: 252] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
In B-cell chronic lymphocytic leukemia (B-CLL), defective apoptosis causes the accumulation of mature CD5(+) B cells in lymphoid organs, bone marrow (BM), and peripheral blood (PB). These cells are the progeny of a proliferating pool that feeds the accumulating compartment. The authors sought to determine which molecular mechanisms govern the proliferating pool, how they relate to apoptosis, and what the role is of the microenvironment. To begin to resolve these problems, the expression and modulation of the family of inhibitor of apoptosis proteins (IAPs) were investigated, with consideration given to the possibility that physiological stimuli, such as CD40 ligand (CD40L), available to B cells in the microenvironment, might modulate IAP expression. The in vitro data on mononuclear cells from PB or BM of 30 patients demonstrate that B-CLL cells on CD40 stimulation express Survivin and that Survivin is the only IAP whose expression is induced by CD40L. Through immunohistochemistry, in vivo Survivin expression in lymph node (LN) and BM biopsies was evaluated. In reactive LN, Survivin was detected only in highly proliferating germinal center cells. In LN from patients with B-CLL, Survivin was detected only in pseudofollicles. Pseudofollicle Survivin(+) cells were actively proliferating and, in contrast to Survivin(+) B cells found in normal GC, were Bcl-2(+). In B-CLL BM biopsies, CD5(+), Survivin(+) cells were observed in clusters interspersed with T cells. These findings establish that Survivin controls the B-CLL proliferative pool interfacing apoptosis and that its expression may be modulated by microenvironmental stimuli.
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MESH Headings
- Aged
- Aged, 80 and over
- Apoptosis/immunology
- CD40 Antigens/immunology
- Cell Division/immunology
- Female
- Humans
- Inhibitor of Apoptosis Proteins
- Leukemia, Lymphocytic, Chronic, B-Cell/immunology
- Leukemia, Lymphocytic, Chronic, B-Cell/metabolism
- Leukemia, Lymphocytic, Chronic, B-Cell/pathology
- Male
- Microtubule-Associated Proteins
- Neoplasm Proteins
- Protein Biosynthesis
- Proteins/immunology
- Survivin
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Affiliation(s)
- L Granziero
- Department of Biomedical Sciences and Human Oncology, University of Torino, Italy
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41
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Cassán F, Bottini R, Schneider G, Piccoli P. Azospirillum brasilense and Azospirillum lipoferum hydrolyze conjugates of GA20 and metabolize the resultant aglycones to GA1 in seedlings of rice dwarf mutants. Plant Physiol 2001; 125:2053-8. [PMID: 11299384 PMCID: PMC88860 DOI: 10.1104/pp.125.4.2053] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2000] [Revised: 10/18/2000] [Accepted: 01/03/2001] [Indexed: 05/23/2023]
Abstract
Azospirillum species are plant growth-promotive bacteria whose beneficial effects have been postulated to be partially due to production of phytohormones, including gibberellins (GAs). In this work, Azospirillum brasilense strain Cd and Azospirillum lipoferum strain USA 5b promoted sheath elongation growth of two single gene GA-deficient dwarf rice (Oryza sativa) mutants, dy and dx, when the inoculated seedlings were supplied with [17,17-2H2]GA20-glucosyl ester or [17,17- 2H2]GA20-glucosyl ether. Results of capillary gas chromatography-mass spectrometry analysis show that this growth was due primarily to release of the aglycone [17,17-2H2]GA20 and its subsequent 3beta-hydroxylation to [17,17-2H2]GA1 by the microorganism for the dy mutant, and by both the rice plant and microorganism for the dx mutant.
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Affiliation(s)
- F Cassán
- Laboratorio de Fisiología Vegetal, Departamento de Ciencias Naturales, Universidad Nacional de Río Cuarto, Campus Universitario, 5800 Río Cuarto, Argentina
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42
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Palatini P, Floreani M, Padrini R, Piccoli P, Bertoli M, Calò L, Orlando R. Effects of chronic renal failure and hemodialysis on the monoethylglycinexylidide liver function test. Clin Chem 2000; 46:1406-8. [PMID: 10973873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Affiliation(s)
- P Palatini
- Department of Pharmacology and Anesthesiology and Department of Medical and Surgical Sciences, University of Padova, 35131 Padova, Italy.
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43
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Bianco G, Di Raimondo R, Luongo G, Paoleschi C, Piccoli P, Piccoli C, Rangert B. Osseointegrated Implant for Single-Tooth Replacement: A Retrospective Multicenter Study on Routine Use in Private Practice. Clin Implant Dent Relat Res 2000; 2:152-8. [PMID: 11359260 DOI: 10.1111/j.1708-8208.2000.tb00006.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Implant restorations first started with total edentulism. Later, the scientific community gave its approval for restorations in partial edentulism, and only recently some studies confirmed the validity of the treatment for single-tooth replacement. PURPOSE The purpose of the study was to evaluate implant survival and prosthesis stability of Brånemark implants (titanium screws) when used routinely for single-tooth replacement in all regions. MATERIALS AND METHODS Two hundred and fourteen patients received 252 implants for single-tooth replacement over a period of 8 years at five private clinics in Italy. The patients were treated in accordance with the protocol for Brånemark implants, and the data gathered have been analyzed according to established evaluation methods. RESULTS During the observation period, 10 failures were recorded and 229 restorations were carried out. After the first year of loading, the total cumulative survival rate (CSR) was 96%, which then remained stable over the study time. The most frequent complication was loosening of the abutment screws (n = 22), amounting to 35% of all of the complications. This problem was related mainly to earlier types of abutments, whereas the more recent design, CeraOne abutment, showed a low frequency of screw loosening. CONCLUSIONS The high survival rate, which is similar to that presented for prospective multicenter studies for single-tooth restorations with Brånemark implants, led to the conclusion that the use of this treatment modality is a reliable treatment for routine use in all oral regions.
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Scarparo C, Piccoli P, Rigon A, Ruggiero G, Scagnelli M, Piersimoni C. Comparison of enhanced Mycobacterium tuberculosis amplified direct test with COBAS AMPLICOR Mycobacterium tuberculosis assay for direct detection of Mycobacterium tuberculosis complex in respiratory and extrapulmonary specimens. J Clin Microbiol 2000; 38:1559-62. [PMID: 10747143 PMCID: PMC86489 DOI: 10.1128/jcm.38.4.1559-1562.2000] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The new Roche COBAS AMPLICOR Mycobacterium tuberculosis Assay was compared to the Gen-Probe enhanced Mycobacterium tuberculosis Amplified Direct Test (AMTDII). A total of 486 specimens (296 respiratory and 190 extrapulmonary) collected from 323 patients were tested in parallel with both assays. Results were compared with those of acid-fast staining and culture, setting the combination of culture and clinical diagnosis as the "gold standard." After resolution of discrepant results, the sensitivity, specificity, and positive and negative predictive values for AMTDII were 85.7, 100, 100, and 90.4% for respiratory specimens and 82.9, 100, 100, and 95. 5% for extrapulmonary specimens, respectively. The corresponding values for AMPLICOR were 94.2, 100, 100, and 96.6% for respiratory specimens and 85, 100, 100, and 96.1% for extrapulmonary specimens, respectively. No significant differences were observed between the results of both assays or, within each one, between respiratory and extrapulmonary specimens. The difference between AMTDII and AMPLICOR sensitivities was related to the presence of inhibitory samples, which the former assay, lacking an internal amplification control (IAC), could not detect. The overall inhibition rate for the AMPLICOR assay was 3.9% (19 specimens). It is concluded that, although both amplification assays proved to be rapid and specific for the detection of M. tuberculosis complex in clinical samples, AMPLICOR, by a completely automated amplification and detection procedure, was shown to be particularly feasible for a routine laboratory setting. Finally, AMTDII is potentially an excellent diagnostic technique for both respiratory and extrapulmonary specimens, provided that an IAC is included with the assay.
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Affiliation(s)
- C Scarparo
- Regional Mycobacteria Reference Centre, San Bortolo Hospital, Vicenza, Italy
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45
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Mazzariol A, Cornaglia G, Piccoli P, Lauretti L, Riccio ML, Rossolini GM, Fontana R. Carbapenem-hydrolyzing metallo-beta-lactamases in Pseudomonas aeruginosa. Eur J Clin Microbiol Infect Dis 1999; 18:455-6. [PMID: 10442429 DOI: 10.1007/s100960050320] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- A Mazzariol
- Istituto di Microbiologia, Università di Verona, Italy
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46
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Fornaro P, Gandini F, Marin M, Pedrazzi C, Piccoli P, Tognetti D, Assael BM, Lucioni C, Mazzi S. Epidemiology and cost analysis of varicella in Italy: results of a sentinel study in the pediatric practice. Italian Sentinel Group on Pediatric Infectious Diseases. Pediatr Infect Dis J 1999; 18:414-9. [PMID: 10353513 DOI: 10.1097/00006454-199905000-00004] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Describing the epidemiology of varicella is relevant to the development of specific prevention strategies and to building up of economic models evaluating the cost:efficiency ratios of these strategies. AIM Our study was designed to describe the epidemiology of chickenpox among Italian children and to assess the resulting economic and health burden on the country. METHODS Thirty-nine Italian pediatricians participated in a sentinel network on pediatric infectious diseases representing a total pediatric population of 30 168 children. Each case of varicella observed from January through December, 1997, was recorded. Economic analysis was conducted from the societal point of view. All costs were broken down into two groups: direct and indirect costs. RESULTS A total of 1599 cases of varicella were reported among children 0 to 14 years old. There were 1266 primary cases (mean age, 4.5 +/- 2 years) and 333 secondary cases (mean age, 3.6 +/- 3.2 years). The global incidence of chickenpox was 51.01/1000/year. Complications were seen in 56 cases (3.5%). Drugs were prescribed in 672 cases. A group of adults (364 susceptible and 193 with uncertain status) were exposed to primary cases. Seventy (12.5%) were eventually infected among whom there were 4 pregnant women. For pediatric patients an average cost of $146.90 (250 400 lire) was estimated; this is largely accounted for by indirect costs. CONCLUSIONS The epidemiology of varicella in Italy is consistent with that found in previous studies in industrialized countries. Severe complications did not occur in our population. We believe that the health arguments in favor of universal vaccination of children > 18 months of age do not differ in our own country from those of other industrialized nations. Our data could now be incorporated into pharmacoeconomic models to establish cost-efficient strategies for Italy.
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Affiliation(s)
- P Fornaro
- Italian Sentinel Group on Pediatric Infectious Diseases, Milan
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47
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Girelli D, Piccoli P, Corrocher R. ["Hyperferritinemia-cataract syndrome." Description of a new hereditary disease, from anamnesis to molecular diagnosis]. Minerva Med 1997; 88:405-10. [PMID: 9417535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A new autosomal-dominant genetic disorder, which has been recently identified by our group is described. The disease is clinically characterized by the combination of a substantial increase of serum ferritin and early-onset bilateral cataract. Moreover, it is clearly distinguishable from genetic hemochromatosis because of: 1) normal to low serum iron and transferrin saturation, without evidence of parenchymal iron overload; 2) the dominant transmission; 3) the lack of any relation with HLA; 4) the rapid development of iron-deficient anemia when unnecessary phlebotomies are performed. The molecular basis of the new syndrome is a mutation in the L-subunit ferritin gene on chromosome 19 (19q13.3-->19qter). The mutation involves a five nucleotide sequence [CAGUG] of the iron-responsive-element (IRE), which is critical for the post-transcriptional regulation of ferritin synthesis by means of the binding with an Iron Regulatory Protein. As a consequence, ferritin synthesis is up-regulated, irrespective of cell iron status.
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Affiliation(s)
- D Girelli
- Istituto di Patologia Medica, Cattedra di Medicina Interna, Università degli Studi, Verona
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48
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Dorizzi RM, Schiavon R, Disperati A, Capuzzo E, Piccoli P. Testing for hepatitis C virus in Italy. BMJ 1991; 303:1331. [PMID: 1660746 PMCID: PMC1671409 DOI: 10.1136/bmj.303.6813.1331-b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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49
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Gaozza E, Piccoli P, Ferrara GB, Bacigalupo A. RFLP analysis with cDNA probes for DQ/DP region in HLA identical sibling marrow transplants: lack of correlation with GvHD. Haematologica 1991; 76:8-13. [PMID: 1676012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND The role of HLA-DP as transplantation antigen in contributing to GvHD is a matter of current debate. HLA-DP, is encoded centromeric to DR-DQ and its alleles are in weak linkage disequilibrium with the rest of the MHC; thus a certain number of HLA matched pairs could be actually DP incompatible to study a possible correlation between HLA-DP matching and GvHD, 24 HLA identical BMT/donor-recipient sibling pairs (serologically tested for HLA Class I and DR antigens) were tested for DQ and DP genes using restriction fragment length polymorphism (RFLP) analysis. METHODS DNA extracts were digested according to a standard procedure with two different restriction enzymes (HIND III and MSP I) and hybridised with DQ (alpha and beta) and DP (alpha and beta) specific probes. Highly stringent hybridization and washing conditions were used to prevent cross-hybridizations. RESULTS Twenty four out of 24 pairs proved to be DQ and DP identical. GvHD developed in 16 out of 24 (66.6%) recipients. DISCUSSION These data suggest that DNa analysis of DQ-DP regions, with the probes and enzymes used, does not give predictive informations for GvHD in HLA genotypically identical pairs.
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Affiliation(s)
- E Gaozza
- Divisione di Ematologia, Ospedale San Martino, Genova, Italy
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50
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Piccoli P, De Leon G, Grecchi MT, Crozzoli P, Garattini G. [Multidisciplinary approach to repositioning of impacted upper canines]. Mondo Ortod 1989; 14:609-14. [PMID: 2640946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
In this paper, the Authors present epidemiology, ethiopatology, diagnosis and treatments elements of the impacted canines. Furthermore they describe the different surgical techniques needed for the exposure of these teeth.
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