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Basso V, Pinheiro Dillon AJ, Toldi M, Gonçalves Kramer C, Vicenço Bonato C. Beauveria bassiana submerged spores for control of two-spotted spider mite (Tetranychus urticae Koch (Acari: Tetranychidae)): production, stability, and virulence. Arch Microbiol 2023; 206:23. [PMID: 38103058 DOI: 10.1007/s00203-023-03759-7] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 11/17/2023] [Accepted: 11/19/2023] [Indexed: 12/17/2023]
Abstract
In this study, IBCB 66, IBCB 868, and CBMAI 1306 isolates of Beauveria bassiana were grown in liquid culture for 4 days, leading to elevated submerged spores (SS) levels. The influence of the addition of different glycerol concentrations (0, 3, and 6%) (v/v) in the liquid culture was investigated regarding the stability (at 4 and 27 °C) of dried formulations. The virulence of SS was compared with aerial spores (AS) against Tetranychus urticae (Koch) (Acari: Tetranychidae). The results demonstrate the potential of using SS to control T. urticae. CBMAI 1306 and IBCB 868 isolates caused T. urticae mortality rates of 91.11% and 88.89% 5 days after treatment, respectively, when applied at concentrations of 1 × 108 SS mL-1. The median Lethal Time (LT50) values for these strains were 2.64 and 2.61 days, respectively. The dried formulations showed potential acaricidal activity. Higher glycerol concentrations in the liquid culture medium reduced formulation stability at 27 °C.
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Affiliation(s)
- Vanessa Basso
- University of Caxias do Sul, Rua Francisco Getúlio Vargas, 1130, 95070-560, Caxias do Sul, Rio Grande do Sul, Brazil.
- Dillon Biotecnologia LTDA, Estrada Municipal Olimpio Miotto, 95062-600, Caxias do Sul, Rio Grande do Sul, Brazil.
| | - Aldo José Pinheiro Dillon
- University of Caxias do Sul, Rua Francisco Getúlio Vargas, 1130, 95070-560, Caxias do Sul, Rio Grande do Sul, Brazil
- Dillon Biotecnologia LTDA, Estrada Municipal Olimpio Miotto, 95062-600, Caxias do Sul, Rio Grande do Sul, Brazil
| | - Maicon Toldi
- University of Caxias do Sul, Rua Francisco Getúlio Vargas, 1130, 95070-560, Caxias do Sul, Rio Grande do Sul, Brazil
- Dillon Biotecnologia LTDA, Estrada Municipal Olimpio Miotto, 95062-600, Caxias do Sul, Rio Grande do Sul, Brazil
| | - Clarissa Gonçalves Kramer
- University of Caxias do Sul, Rua Francisco Getúlio Vargas, 1130, 95070-560, Caxias do Sul, Rio Grande do Sul, Brazil
- Dillon Biotecnologia LTDA, Estrada Municipal Olimpio Miotto, 95062-600, Caxias do Sul, Rio Grande do Sul, Brazil
| | - Camila Vicenço Bonato
- University of Caxias do Sul, Rua Francisco Getúlio Vargas, 1130, 95070-560, Caxias do Sul, Rio Grande do Sul, Brazil
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Fracchia F, Basso V, Guinet F, Veneault-Fourrey C, Deveau A. Confocal Laser Scanning Microscopy Approach to Investigate Plant-Fungal Interactions. Methods Mol Biol 2023; 2605:325-335. [PMID: 36520401 DOI: 10.1007/978-1-0716-2871-3_16] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Plants interact with a broad range of microorganisms, such as bacteria and fungi. In plant roots, complex microbial communities participate in plant nutrition and development as well as in the protection against stresses. The establishment of the root microbiota is a dynamic process in space and time regulated by abiotic (e.g., edaphic, climate, etc.) and biotic factors (e.g., host genotype, root exudates, etc.). In the last 20 years, the development of metabarcoding surveys, based on high-throughput next-generation sequencing methods, identified the main drivers of microbial community structuration. However, identification of plant-associated microbes by sequencing should be complemented by imaging techniques to provide information on the micrometric spatial organization and its impact on plant-fungal and fungal-fungal interactions. Laser scanning confocal microscopy can provide both types of information and is now used to investigate communities of endophytic, endomycorrhizal, and ectomycorrhizal fungi. In this chapter, we present a protocol enabling the detection of fungal individuals and communities associated to the plant root system.
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Affiliation(s)
- F Fracchia
- Université de Lorraine, INRAE, IAM, Nancy, France.
| | - V Basso
- Université de Lorraine, INRAE, IAM, Nancy, France
| | - F Guinet
- Université de Lorraine, INRAE, IAM, Nancy, France
| | | | - Aurélie Deveau
- University de Lorraine, INRAE, UMR1136 Interactions arbre microorganismes, Centre INRAE Grand Est -Nancy, Champenoux, France.
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Venkat G, Cox CDW, Sola A, Basso V, Morrison K. Measurement of the heat flux normalized spin Seebeck coefficient of thin films as a function of temperature. Rev Sci Instrum 2020; 91:073910. [PMID: 32752805 DOI: 10.1063/5.0007989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 07/02/2020] [Indexed: 06/11/2023]
Abstract
The spin Seebeck effect (SSE) has generated interest in the thermoelectric and magnetic communities for potential high efficiency energy harvesting applications and spintronic communities as a source of pure spin current. Understanding the underlying mechanisms requires characterization of potential materials across a range of temperatures; however, for thin films, the default measurement of an applied temperature gradient (across the sample) has been shown to be compromised by the presence of thermal resistances. Here, we demonstrate a method to perform low temperature SSE measurements where, instead of monitoring the temperature gradient, the heat flux passing through the sample is measured using two calibrated heat flux sensors. This has the advantage of measuring the heat loss through the sample as well as providing a reliable method to normalize the SSE response of thin film samples. We demonstrate this method with an SiO2/Fe3O4/Pt sample where a semiconducting-insulating transition occurs at the Verwey transition, TV, of Fe3O4 and quantify the thermomagnetic response above and below TV.
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Affiliation(s)
- G Venkat
- Department of Physics, Loughborough University, Loughborough LE11 3TU, United Kingdom
| | - C D W Cox
- Department of Physics, Loughborough University, Loughborough LE11 3TU, United Kingdom
| | - A Sola
- Instituto Nazionale di Ricerca Metrologica, Strada delle Cacce 91, 10135 Torino, Italy
| | - V Basso
- Instituto Nazionale di Ricerca Metrologica, Strada delle Cacce 91, 10135 Torino, Italy
| | - K Morrison
- Department of Physics, Loughborough University, Loughborough LE11 3TU, United Kingdom
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Troia A, Olivetti ES, Martino L, Basso V. Sonochemical hydrogenation of metallic microparticles. Ultrason Sonochem 2019; 55:1-7. [PMID: 31084783 DOI: 10.1016/j.ultsonch.2019.03.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 02/04/2019] [Accepted: 03/04/2019] [Indexed: 06/09/2023]
Abstract
We report the sonochemical synthesis of hydrogenated metallic microparticles through room-temperature ultrasonic irradiation of aqueous metallic slurries. The role of saturating gases and of reduction-oxidation mechanism on promoting the hydride formation is investigated. The method is then applied to study the synthesis of different metallic hydrides (Mn, Ti) and the hydrogenation of La(Fe,Mn,Si)13, an intermetallic compound with magnetocaloric properties used in magnetic refrigeration applications. The samples were characterized by X-ray diffraction to identify the presence of hydrogenated phases, by differential scanning calorimetry to evaluate hydrogen release and temperature stability of the hydrides and by electron microscopy to identify morphological modifications induced by acoustic cavitation. The hydrogenation of metallic microparticles and intermetallic compounds is reported for the first time by means of this experimental technique which could represent a new tool for fast and cheap hydrogenation of materials for different technological applications, such as hydrogen storage and magnetic refrigeration.
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Affiliation(s)
- A Troia
- Istituto Nazionale di Ricerca Metrologica, INRIM, Strada delle Cacce 91, 10135 Turin, Italy.
| | - E S Olivetti
- Istituto Nazionale di Ricerca Metrologica, INRIM, Strada delle Cacce 91, 10135 Turin, Italy
| | - L Martino
- Istituto Nazionale di Ricerca Metrologica, INRIM, Strada delle Cacce 91, 10135 Turin, Italy
| | - V Basso
- Istituto Nazionale di Ricerca Metrologica, INRIM, Strada delle Cacce 91, 10135 Turin, Italy
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Vivero F, Campins F, Lancellotti D, Malfante P, Babini S, Sebastiani J, Basso V, Gaser A, Enghelmayer J, Gandara E. Autoimmune interstitial lung disease in Latin-America. Clin Immunol 2019; 199:52-56. [DOI: 10.1016/j.clim.2018.12.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Piovano L, Brunello MM, Musso I, Rocci L, Basso V. Virtual reality representation of Martian soil for space exploration. Pattern Recognit Image Anal 2013. [DOI: 10.1134/s1054661812040141] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Piovano L, Brunello M, Rocci L, Basso V. Representing planetary terrains into a virtual reality environment for space exploration. Pattern Recognit Image Anal 2011. [DOI: 10.1134/s1054661811020878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Pannarale G, Acconcia MC, Gianturco L, Mirabelli F, Licitra R, Mutone D, Basso V, Pergolini A, Madeo A, Gaudio C. Cigarette smoking and ambulatory blood pressure: a case–control study in normotensives. J Hum Hypertens 2007; 22:129-31. [PMID: 17597796 DOI: 10.1038/sj.jhh.1002261] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The aim of our study was the evaluation of the effects of cigarette smoking on ambulatory blood pressure (ABP) in normotensive subjects participating to a cardiovascular prevention program. All subjects were followed up for an average time of 97+/-42 months to assess the event of hypertension development. Prevalence of hypertension development was higher in smokers even if regression logistic analysis was not able to predict hypertension development.
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Pannarale G, Gaudio C, Gianturco L, Iaquinta S, Licitra R, Leonetti S, Basso V, Arrivi A, Fedele F. Ambulatory Blood Pressure Monitoring in Drug-Treated Patients with Isolated Systolic Hypertension. High Blood Press Cardiovasc Prev 2005. [DOI: 10.2165/00151642-200512030-00014] [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: 11/02/2022] Open
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Bertotti G, Mayergoyz ID, Basso V, Magni A. Functional integration approach to hysteresis. Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics 1999; 60:1428-40. [PMID: 11969902 DOI: 10.1103/physreve.60.1428] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/1999] [Indexed: 11/07/2022]
Abstract
A general formulation of scalar hysteresis is proposed. This formulation is based on two steps. First, a generating function g(x) is associated with an individual system, and a hysteresis evolution operator is defined by an appropriate envelope construction applied to g(x), inspired by the overdamped dynamics of systems evolving in multistable free-energy landscapes. Second, the average hysteresis response of an ensemble of such systems is expressed as a functional integral over the space G of all admissible generating functions, under the assumption that an appropriate measure mu has been introduced in G. The consequences of the formulation are analyzed in detail in the case where the measure mu is generated by a continuous, Markovian stochastic process. The calculation of the hysteresis properties of the ensemble is reduced to the solution of the level-crossing problem for the stochastic process. In particular, it is shown that, when the process is translationally invariant (homogeneous), the ensuing hysteresis properties can be exactly described by the Preisach model of hysteresis, and the associated Preisach distribution is expressed in closed analytic form in terms of the drift and diffusion parameters of the Markovian process. Possible applications of the formulation are suggested, concerning the interpretation of magnetic hysteresis due to domain wall motion in quenched-in disorder and the interpretation of critical state models of superconducting hysteresis.
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Affiliation(s)
- G Bertotti
- Istituto Elettrotecnico Nazionale Galileo Ferraris, Corso Massimo d'Azeglio 42, I-10125 Torino, Italy
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Miccio M, Baldini G, Basso V, Gazzin B, Lunazzi GC, Tiribelli C, Sottocasa GL. Bilitranslocase is the protein responsible for the electrogenic movement of sulfobromophthalein in plasma membrane vesicles from rat liver: immunochemical evidence using mono- and poly-clonal antibodies. Biochim Biophys Acta 1989; 981:115-20. [PMID: 2719967 DOI: 10.1016/0005-2736(89)90088-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Monoclonal antibodies raised against bilitranslocase, may display either inhibitory or enhancing activity on the electrogenic transport of sulfobromophthalein, evoked in rat liver plasma-membrane vesicles by the addition of valinomycin in the presence of K+. In both cases, the target protein is identified with a 37 kDa band in SDS-mercaptoethanol gel electrophoresis of solubilized membranes. The electrophoretically homogeneous protein isolated by ion-exchange chromatography, corresponds in all respects to the 37 kDa protein band of bilitranslocase, obtained in the past by different techniques. Using this protein as antigen, a polyclonal monospecific antibody preparation has been obtained. As expected, the antibody preparation inhibits the electrogenic movement of sulfobromophthalein in plasma membrane vesicles from rat liver. It is concluded that the 37 kDa protein of bilitranslocase is at least a necessary component of the transport system involved in the sulfobromophthalein movement in plasma membrane.
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Affiliation(s)
- M Miccio
- Dipartimento di Biochimica, University of Trieste, Italy
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Amirante GA, Basso V. Analytical study of lectins in Squilla mantis L. (Crustacea stomatopoda) using monoclonal antibodies. Dev Comp Immunol 1984; 8:721-726. [PMID: 6500141 DOI: 10.1016/0145-305x(84)90103-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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