1
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Russo G, Capitanio S, Trasoletti M, Morabito C, Korwin Krukowski P, Visentin I, Genre A, Schubert A, Cardinale F. Strigolactones promote the localization of the ABA exporter ABCG25 at the plasma membrane in root epidermal cells of Arabidopsis thaliana. J Exp Bot 2023; 74:5881-5895. [PMID: 37519212 DOI: 10.1093/jxb/erad298] [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] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 07/29/2023] [Indexed: 08/01/2023]
Abstract
The phytohormones strigolactones crosstalk with abscisic acid (ABA) in acclimation to osmotic stress, as ascertained in leaves. However, our knowledge about underground tissues is limited, and lacking in Arabidopsis: whether strigolactones affect ABA transport across plasma membranes has never been addressed. We evaluated the effect of strigolactones on the localization of ATP BINDING CASSETTE G25 (ABCG25), an ABA exporter in Arabidopsis thaliana. Wild-type, strigolactone-insensitive, and strigolactone-depleted seedlings expressing a green fluorescent protein:ABCG25 construct were treated with ABA or strigolactones, and green fluorescent protein was quantified by confocal microscopy in different subcellular compartments of epidermal root cells. We show that strigolactones promote the localization of an ABA transporter at the plasma membrane by enhancing its endosomal recycling. Genotypes altered in strigolactone synthesis or perception are not impaired in ABCG25 recycling promotion by ABA, which acts downstream or independent of strigolactones in this respect. Additionally, we confirm that osmotic stress decreases strigolactone synthesis in A. thaliana root cells, and that this decrease may support local ABA retention under low water availability by allowing ABCG25 internalization. Thus, we propose a new mechanism for ABA homeostasis regulation in the context of osmotic stress acclimation: the fine-tuning by strigolactones of ABCG25 localization in root cells.
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Affiliation(s)
- Giulia Russo
- PlantStressLab, DISAFA, University of Turin, Largo Braccini 2, I-10095 Grugliasco (TO), Italy
| | - Serena Capitanio
- PlantStressLab, DISAFA, University of Turin, Largo Braccini 2, I-10095 Grugliasco (TO), Italy
- DBIOS, University of Turin, Viale Mattioli 25, I-10125 Torino, Italy
| | - Marta Trasoletti
- PlantStressLab, DISAFA, University of Turin, Largo Braccini 2, I-10095 Grugliasco (TO), Italy
| | - Cristina Morabito
- PlantStressLab, DISAFA, University of Turin, Largo Braccini 2, I-10095 Grugliasco (TO), Italy
| | - Paolo Korwin Krukowski
- PlantStressLab, DISAFA, University of Turin, Largo Braccini 2, I-10095 Grugliasco (TO), Italy
| | - Ivan Visentin
- PlantStressLab, DISAFA, University of Turin, Largo Braccini 2, I-10095 Grugliasco (TO), Italy
| | - Andrea Genre
- DBIOS, University of Turin, Viale Mattioli 25, I-10125 Torino, Italy
| | - Andrea Schubert
- PlantStressLab, DISAFA, University of Turin, Largo Braccini 2, I-10095 Grugliasco (TO), Italy
| | - Francesca Cardinale
- PlantStressLab, DISAFA, University of Turin, Largo Braccini 2, I-10095 Grugliasco (TO), Italy
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2
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Zhang D, Zhu K, Shen X, Meng J, Huang X, Tan Y, Cardinale F, Liu J, Li G, Liu J. Two interacting ethylene response factors negatively regulate peach resistance to Lasiodiplodia theobromae. Plant Physiol 2023:7159814. [PMID: 37165714 PMCID: PMC10400035 DOI: 10.1093/plphys/kiad279] [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] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/31/2023] [Accepted: 05/10/2023] [Indexed: 05/12/2023]
Abstract
Gummosis is one of the most common and destructive diseases threatening global peach (Prunus persica) production. Our previous studies have revealed that ethylene and methyl-jasmonate enhance peach susceptibility to Lasiodiplodia theobromae, a virulent pathogen inducing gummosis; however, the underlying molecular mechanisms remain obscure. Here, two ethylene response factors, PpERF98 and PpERF1, were identified as negative regulators in peach response to L. theobromae infection. Expression of two putative paralogs, PpERF98-1/2, was dramatically induced by ethylene and L. theobromae treatments and accumulated highly in the gummosis-sensitive cultivar. Silencing of PpERF98-1/2 increased salicylic acid (SA) content and pathogenesis-related genes PpPR1 and PpPR2 transcripts, conferring peach resistance to L. theobromae, whereas peach and tomato (Solanum lycopersicum) plants overexpressing either of PpERF98-1/2 showed opposite changes. Also, jasmonic acid markedly accumulated in PpERF98-1/2-silenced plants, but reduction in PpPR3, PpPR4, and PpCHI (Chitinase) transcripts indicated a blocked signaling pathway. PpERF98-1/2 were further demonstrated to directly bind the promoters of two putative paralogous PpERF1 genes and to activate the ERF branch of the jasmonate/ethylene signaling pathway, thus attenuating SA-dependent defenses. The lesion phenotypes of peach seedlings overexpressing PpERF1-1/2 and PpERF98-1/2 were similar. Furthermore, PpERF98-1/2 formed homo-/hetero-dimers and interacted with the two PpERF1 proteins to amplify the jasmonate/ethylene signaling pathway, as larger lesions were observed in peach plants co-overexpressing PpERF98 with PpERF1 relative to individual PpERF98 overexpression. Overall, our work deciphers an important regulatory network of ethylene-mediated peach susceptibility to L. theobromae based on a PpERF98-PpERF1 transcriptional cascade, which could be utilized as a potential target for genetic engineering to augment protection against L. theobromae-mediated diseases in crops and trees.
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Affiliation(s)
- Dongmei Zhang
- National Key Lab for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, Hubei Province, China
| | - Kaijie Zhu
- National Key Lab for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, Hubei Province, China
| | - Xingyi Shen
- National Key Lab for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, Hubei Province, China
| | - Jian Meng
- National Key Lab for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, Hubei Province, China
| | - Xue Huang
- National Key Lab for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, Hubei Province, China
| | - Yuqi Tan
- National Key Lab for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, Hubei Province, China
| | - Francesca Cardinale
- PlantStressLab, Department of Agriculture, Forestry and Food Science DISAFA, Turin University, 10095 Grugliasco (Torino), Italy
| | - Jihong Liu
- National Key Lab for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, Hubei Province, China
| | - Guohuai Li
- National Key Lab for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, Hubei Province, China
| | - Junwei Liu
- National Key Lab for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, Hubei Province, China
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Korwin Krukowski P, Visentin I, Russo G, Minerdi D, Bendahmane A, Schubert A, Cardinale F. Transcriptome Analysis Points to BES1 as a Transducer of Strigolactone Effects on Drought Memory in Arabidopsis thaliana. Plant Cell Physiol 2023; 63:1873-1889. [PMID: 35489066 DOI: 10.1093/pcp/pcac058] [Citation(s) in RCA: 1] [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: 11/28/2021] [Revised: 04/09/2022] [Accepted: 04/29/2022] [Indexed: 05/21/2023]
Abstract
Strigolactones (SLs) are carotenoid-derived phytohormones governing a wide range of physiological processes, including drought-associated stomatal closure. We have previously shown in tomato that SLs regulate the so-called after-effect of drought, whereby stomatal conductance is not completely restored for some time during recovery after a drought spell, irrespective of the water potential. To ease the elucidation of its molecular underpinnings, we investigated whether this SL effect is conserved in Arabidopsis thaliana by contrasting the physiological performances of the wild-type with SL-depleted (more axillary growth 4, max4) and insensitive (dwarf 14, d14) mutants in a drought and recovery protocol. Physiological analyses showed that SLs are important to achieve a complete after-effect in A. thaliana, while transcriptome results suggested that the SL-dependent modulation of drought responses extends to a large subset (about 4/5) of genes displaying memory transcription patterns. Among these, we show that the activation of over 30 genes related to abscisic acid metabolism and signaling strongly depends on SL signaling. Furthermore, by using promoter-enrichment tools, we identified putative cis- and trans-acting factors that may be important in the SL-dependent and SL-independent regulation of genes during drought and recovery. Finally, in order to test the accuracy of our bioinformatic prediction, we confirmed one of the most promising transcription factor candidates mediating SL signaling effects on transcriptional drought memory-BRI-EMS SUPPRESSOR1 (BES1). Our findings reveal that SLs are master regulators of Arabidopsis transcriptional memory upon drought and that this role is partially mediated by the BES1 transcription factor.
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Affiliation(s)
- Paolo Korwin Krukowski
- PlantStressLab, DISAFA-University of Turin, Largo Paolo Braccini 2, Grugliasco (TO) I-10095, Italy
| | - Ivan Visentin
- PlantStressLab, DISAFA-University of Turin, Largo Paolo Braccini 2, Grugliasco (TO) I-10095, Italy
| | - Giulia Russo
- PlantStressLab, DISAFA-University of Turin, Largo Paolo Braccini 2, Grugliasco (TO) I-10095, Italy
| | - Daniela Minerdi
- PlantStressLab, DISAFA-University of Turin, Largo Paolo Braccini 2, Grugliasco (TO) I-10095, Italy
| | - Abdelhafid Bendahmane
- Biology Department, Institute of Plant Sciences-Paris-Saclay, CS80004, Gif-sur-Yvette Cedex 91192, France
| | - Andrea Schubert
- PlantStressLab, DISAFA-University of Turin, Largo Paolo Braccini 2, Grugliasco (TO) I-10095, Italy
| | - Francesca Cardinale
- PlantStressLab, DISAFA-University of Turin, Largo Paolo Braccini 2, Grugliasco (TO) I-10095, Italy
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Trasoletti M, Visentin I, Campo E, Schubert A, Cardinale F. Strigolactones as a hormonal hub for the acclimation and priming to environmental stress in plants. Plant Cell Environ 2022; 45:3611-3630. [PMID: 36207810 PMCID: PMC9828678 DOI: 10.1111/pce.14461] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/29/2022] [Accepted: 10/04/2022] [Indexed: 06/16/2023]
Abstract
Strigolactones are phytohormones with many attributed roles in development, and more recently in responses to environmental stress. We will review evidence of the latter in the frame of the classic distinction among the three main stress acclimation strategies (i.e., avoidance, tolerance and escape), by taking osmotic stress in its several facets as a non-exclusive case study. The picture we will sketch is that of a hormonal family playing important roles in each of the mechanisms tested so far, and influencing as well the build-up of environmental memory through priming. Thus, strigolactones appear to be backstage operators rather than frontstage players, setting the tune of acclimation responses by fitting them to the plant individual history of stress experience.
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Affiliation(s)
| | | | - Eva Campo
- DISAFA, PlantStressLabTurin UniversityTurinItaly
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Pasqua S, Monaco F, Cardinale F, Bonelli S, Conaldi PG, D’Apolito D. Growth Performance and Recovery of Nosocomial Aspergillus spp. in Blood Culture Bottles. Microorganisms 2022; 10:microorganisms10102026. [PMID: 36296302 PMCID: PMC9608713 DOI: 10.3390/microorganisms10102026] [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: 09/01/2022] [Revised: 10/05/2022] [Accepted: 10/11/2022] [Indexed: 11/21/2022] Open
Abstract
Theoretically, Aspergillus spp. grow in culture media, but frequently, blood cultures of patients with invasive Aspergillosis are negative, even if until now, the reasons are not clear. This aspect underlines the lack of a good strategy for the cultivation and isolation of Aspergillus spp. In order to develop a complete analytical method to detect Aspergillus in clinical and pharmaceutical samples, we investigated the growth performance of two blood culture systems versus the pharmacopeia standard method. At <72 h, all test systems showed comparable sensitivity, about 1−2 conidia. However, the subculture analysis showed a suboptimal recovery for the methods, despite the positive growth and the visualization of the “Aspergillus balls” in the culture media. To investigate this issue, we studied three different subculture approaches: (i) the use of a sterile subculture unit, (ii) the use of a sterile subculture unit and the collection of a larger aliquot (100 µL), following vigorous agitation of the vials, and (iii) to decapsulate the bottle, withdrawing and centrifuging the sample, and aliquot the pellet onto SDA plates. Our results showed that only the third procedure recovered Aspergillus from all positive culture bottles. This work confirmed that our strategy is a valid and faster method to culture and isolate Aspergillus spp. from blood culture bottles.
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Affiliation(s)
- Salvatore Pasqua
- Unità Prodotti Cellulari (GMP), Fondazione Ri.MED c/o IRCCS-ISMETT, Via E. Tricomi 5, 90127 Palermo, Italy
| | - Francesco Monaco
- Unità di Medicina di Laboratorio e Biotecnologie Avanzate, IRCCS-ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione), Via E. Tricomi 5, 90127 Palermo, Italy
| | - Francesca Cardinale
- Unità di Medicina di Laboratorio e Biotecnologie Avanzate, IRCCS-ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione), Via E. Tricomi 5, 90127 Palermo, Italy
| | - Simone Bonelli
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, Edificio 16, 90128 Palermo, Italy
- Proteomics Group of Fondazione Ri.MED, Department of Research IRCCS ISMETT, Via Ernesto Tricomi 5, 90145 Palermo, Italy
| | - Pier Giulio Conaldi
- Unità di Medicina di Laboratorio e Biotecnologie Avanzate, IRCCS-ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione), Via E. Tricomi 5, 90127 Palermo, Italy
| | - Danilo D’Apolito
- Unità Prodotti Cellulari (GMP), Fondazione Ri.MED c/o IRCCS-ISMETT, Via E. Tricomi 5, 90127 Palermo, Italy
- Unità di Medicina di Laboratorio e Biotecnologie Avanzate, IRCCS-ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione), Via E. Tricomi 5, 90127 Palermo, Italy
- Correspondence: mailto: or ; Tel.: +39-091-2192472
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Fiorilli V, Forgia M, de Saint Germain A, D’Arrigo G, Cornu D, Le Bris P, Al‐Babili S, Cardinale F, Prandi C, Spyrakis F, Boyer F, Turina M, Lanfranco L. A structural homologue of the plant receptor D14 mediates responses to strigolactones in the fungal phytopathogen Cryphonectria parasitica. New Phytol 2022; 234:1003-1017. [PMID: 35119708 PMCID: PMC9306968 DOI: 10.1111/nph.18013] [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] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 01/26/2022] [Indexed: 05/27/2023]
Abstract
Strigolactones (SLs) are plant hormones and important signalling molecules required to promote arbuscular mycorrhizal (AM) symbiosis. While in plants an α/β-hydrolase, DWARF14 (D14), was shown to act as a receptor that binds and cleaves SLs, the fungal receptor for SLs is unknown. Since AM fungi are currently not genetically tractable, in this study, we used the fungal pathogen Cryphonectria parasitica, for which gene deletion protocols exist, as a model, as we have previously shown that it responds to SLs. By means of computational, biochemical and genetic analyses, we identified a D14 structural homologue, CpD14. Molecular homology modelling and docking support the prediction that CpD14 interacts with and hydrolyses SLs. The recombinant CpD14 protein shows α/β hydrolytic activity in vitro against the SLs synthetic analogue GR24; its enzymatic activity requires an intact Ser/His/Asp catalytic triad. CpD14 expression in the d14-1 loss-of-function Arabidopsis thaliana line did not rescue the plant mutant phenotype. However, gene inactivation by knockout homologous recombination reduced fungal sensitivity to SLs. These results indicate that CpD14 is involved in SLs responses in C. parasitica and strengthen the role of SLs as multifunctional molecules acting in plant-microbe interactions.
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Affiliation(s)
- Valentina Fiorilli
- Dipartimento di Scienze della Vita e Biologia dei SistemiUniversità di TorinoViale P.A. Mattioli 25Torino10125Italy
| | - Marco Forgia
- Istituto per la Protezione Sostenibile delle Piante – CNRStrada delle Cacce 7310135TorinoItaly
| | | | - Giulia D’Arrigo
- Dipartimento di Scienza e Tecnologia del FarmacoUniversità di Torinovia P. Giuria 1110125TorinoItaly
| | - David Cornu
- CEA, CNRSInstitute for Integrative Biology of the Cell (I2BC)Université Paris‐Saclay1 Avenue de la Terrasse91198Gif‐sur‐YvetteFrance
| | - Philippe Le Bris
- INRAE, AgroParisTechInstitut Jean‐Pierre Bourgin (IJPB)Université Paris‐Saclay78000VersaillesFrance
| | - Salim Al‐Babili
- Division of Biological and Environmental Science and EngineeringKing Abdullah University of Science and TechnologyThuwal23955‐6900Saudi Arabia
| | - Francesca Cardinale
- Dipartimento di Scienze Agrarie, Forestali e AlimentariUniversità di TorinoLargo Braccini 210095GrugliascoItaly
| | - Cristina Prandi
- Dipartimento di ChimicaUniversità di Torinovia P. Giuria 710125TorinoItaly
| | - Francesca Spyrakis
- Dipartimento di Scienza e Tecnologia del FarmacoUniversità di Torinovia P. Giuria 1110125TorinoItaly
| | - François‐Didier Boyer
- CNRSInstitut de Chimie des Substances NaturellesUPR 2301Université Paris‐Saclay1 Avenue de la Terrasse91198Gif‐sur‐YvetteFrance
| | - Massimo Turina
- Istituto per la Protezione Sostenibile delle Piante – CNRStrada delle Cacce 7310135TorinoItaly
| | - Luisa Lanfranco
- Dipartimento di Scienze della Vita e Biologia dei SistemiUniversità di TorinoViale P.A. Mattioli 25Torino10125Italy
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Zhang D, Shen X, Zhang H, Huang X, He H, Ye J, Cardinale F, Liu J, Liu J, Li G. Integrated transcriptomic and metabolic analyses reveal that ethylene enhances peach susceptibility to Lasiodiplodia theobromae-induced gummosis. Hortic Res 2022; 9:6510707. [PMID: 35040976 PMCID: PMC8958899 DOI: 10.1093/hr/uhab019] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 09/03/2021] [Accepted: 09/07/2021] [Indexed: 05/05/2023]
Abstract
Gummosis, one of the most detrimental diseases to the peach industry worldwide, can be induced by Lasiodiplodia theobromae. Ethylene (ET) is known to trigger the production of gum exudates, but the mechanism underlying fungus-induced gummosis remains unclear. In this study, L. theobromae infection triggered the accumulation of ET and jasmonic acid (JA) but not salicylic acid (SA) in a susceptible peach variety. Gaseous ET and its biosynthetic precursor increased gum formation, whereas ET inhibitors repressed it. SA and methyl-jasmonate treatments did not influence gum formation. RNA-seq analysis indicated that L. theobromae infection and ET treatment induced a shared subset of 1808 differentially expressed genes, which were enriched in the category "starch and sucrose, UDP-sugars metabolism". Metabolic and transcriptional profiling identified a pronounced role of ET in promoting the transformation of primary sugars (sucrose, fructose, and glucose) into UDP-sugars, which are substrates of gum polysaccharide biosynthesis. Furthermore, ethylene insensitive3-like1 (EIL1), a key transcription factor in the ET pathway, could directly target the promoters of the UDP-sugar biosynthetic genes UXS1a, UXE, RGP and MPI and activate their transcription, as revealed by firefly luciferase and yeast one-hybrid assays. On the other hand, the supply of SA and inhibitors of ET and JA decreased the lesion size. ET treatment reduced JA levels and the transcription of the JA biosynthetic gene OPR but increased the SA content and the expression of its biosynthetic gene PAL. Overall, we suggest that endogenous and exogenous ET aggravate gummosis disease by transactivating UDP-sugar metabolic genes through EIL1 and modulating JA and SA biosynthesis in L. theobromae-infected peach shoots. Our findings shed light on the molecular mechanism by which ET regulates plant defense responses in peach during L. theobromae infection.
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Affiliation(s)
- Dongmei Zhang
- Key Laboratory of Horticultural Plant Biology-Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, Hubei Province, China
| | - Xingyi Shen
- Key Laboratory of Horticultural Plant Biology-Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, Hubei Province, China
| | - He Zhang
- Key Laboratory of Horticultural Plant Biology-Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, Hubei Province, China
| | - Xue Huang
- Key Laboratory of Horticultural Plant Biology-Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, Hubei Province, China
| | - Hanzi He
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei Province, China
| | - Junli Ye
- Key Laboratory of Horticultural Plant Biology-Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, Hubei Province, China
| | - Francesca Cardinale
- Plant Stress Lab, Department of Agriculture, Forestry and Food Science DISAFA - Turin University, 10095 Grugliasco (Torino), Italy
| | - Jihong Liu
- Key Laboratory of Horticultural Plant Biology-Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, Hubei Province, China
| | - Junwei Liu
- Key Laboratory of Horticultural Plant Biology-Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, Hubei Province, China
- Corresponding author. E-mail: ;
| | - Guohuai Li
- Key Laboratory of Horticultural Plant Biology-Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, Hubei Province, China
- Corresponding author. E-mail: ;
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Cuscino N, Fatima A, Di Pilato V, Bulati M, Alfano C, Monaca E, Di Mento G, Di Carlo D, Cardinale F, Monaco F, Rossolini GM, Khan AM, Conaldi PG, Douradinha B. Computational design and characterization of a multiepitope vaccine against carbapenemase-producing Klebsiella pneumoniae strains, derived from antigens identified through reverse vaccinology. Comput Struct Biotechnol J 2022; 20:4446-4463. [PMID: 36051872 PMCID: PMC9418682 DOI: 10.1016/j.csbj.2022.08.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 08/15/2022] [Accepted: 08/15/2022] [Indexed: 11/10/2022] Open
Abstract
Klebsiella pneumoniae is a Gram-negative pathogen of clinical relevance, which can provoke serious urinary and blood infections and pneumonia. This bacterium is a major public health threat due to its resistance to several antibiotic classes. Using a reverse vaccinology approach, 7 potential antigens were identified, of which 4 were present in most of the sequences of Italian carbapenem-resistant K. pneumoniae clinical isolates. Bioinformatics tools demonstrated the antigenic potential of these bacterial proteins and allowed for the identification of T and B cell epitopes. This led to a rational design and in silico characterization of a multiepitope vaccine against carbapenem-resistant K. pneumoniae strains. As adjuvant, the mycobacterial heparin-binding hemagglutinin adhesin (HBHA), which is a Toll-like receptor 4 (TLR-4) agonist, was included, to increase the immunogenicity of the construct. The multiepitope vaccine candidate was analyzed by bioinformatics tools to assess its antigenicity, solubility, allergenicity, toxicity, physical and chemical parameters, and secondary and tertiary structures. Molecular docking binding energies to TLR-2 and TLR-4, two important innate immunity receptors involved in the immune response against K. pneumoniae infections, and molecular dynamics simulations of such complexes supported active interactions. A codon optimized multiepitope sequence cloning strategy is proposed, for production of recombinant vaccine in classical bacterial vectors. Finally, a 3 dose-immunization simulation with the multiepitope construct induced both cellular and humoral immune responses. These results suggest that this multiepitope construct has potential as a vaccination strategy against carbapenem-resistant K. pneumoniae and deserves further validation.
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Di Mento G, Gona F, Russelli G, Cuscino N, Barbera F, Carreca AP, Di Carlo D, Cardinale F, Monaco F, Campanella M, Mularoni A, Grossi P, Conaldi PG, Douradinha B. A retrospective molecular epidemiological scenario of carbapenemase-producing Klebsiella pneumoniae clinical isolates in a Sicilian transplantation hospital shows a swift polyclonal divergence among sequence types, resistome and virulome. Microbiol Res 2021; 256:126959. [PMID: 34995971 DOI: 10.1016/j.micres.2021.126959] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 12/24/2021] [Accepted: 12/27/2021] [Indexed: 12/24/2022]
Abstract
In this work, we assessed and characterized the epidemiological scenario of carbapenem-resistant Klebsiella pneumoniae strains (CR-Kp) at IRCCS-ISMETT, a transplantation hospital in Palermo, Italy, from 2008 to 2017. A total of 288 K. pneumoniae clinical isolates were selected based on their resistance to carbapenems. Molecular characterization was also done in terms of the presence of virulence and resistance genes. All patients were inpatients from our facility and clinical isolates were collected from several sources, either from infection or colonization cases. We observed that, in agreement with the Italian epidemiological scenario, initially only ST258 and ST512 clade II (but not from clade I) were identified from 2008 to 2011. From 2012 onwards, other STs have been observed, including the clinically relevant ST101 and ST307, but also others not previously observed in other Italian health settings, such as ST220 and ST753. The presence of genes involved in resistance and virulence was confirmed, and a heterogeneous genetic resistance profile throughout the years was observed. Our work highlights that resistance genes are rapidly disseminating between different and novel K. pneumoniae clones which, combined with resistance to multiple antibiotics, can derive into more aggressive and pathogenic multidrug-resistant strains of clinical importance. Our results stress the importance of continuous surveillance of CR Enterobacterales in health facilities so that novel STs carrying resistance and virulence genes that may become increasingly pathogenic can be identified and adequate therapies to adopted to avoid their dissemination and derived pathologies.
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Affiliation(s)
- Giuseppina Di Mento
- Dipartimento di Ricerca, IRCCS-ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione), Palermo, Italy
| | - Floriana Gona
- Dipartimento di Ricerca, IRCCS-ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione), Palermo, Italy
| | - Giovanna Russelli
- Dipartimento di Ricerca, IRCCS-ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione), Palermo, Italy
| | - Nicola Cuscino
- Dipartimento di Ricerca, IRCCS-ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione), Palermo, Italy
| | - Floriana Barbera
- Dipartimento di Ricerca, IRCCS-ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione), Palermo, Italy
| | - Anna Paola Carreca
- Unità di Medicina Rigenerativa ed Immunologia, Fondazione Ri.MED, Palermo, Italy
| | - Daniele Di Carlo
- Dipartimento di Ricerca, IRCCS-ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione), Palermo, Italy
| | - Francesca Cardinale
- Dipartimento di Ricerca, IRCCS-ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione), Palermo, Italy
| | - Francesco Monaco
- Dipartimento di Ricerca, IRCCS-ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione), Palermo, Italy
| | - Maria Campanella
- Dipartimento per la Cura e lo Studio delle Patologie Addominali e dei Trapianti Addominali, IRCCS-ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione), Palermo, Italy
| | - Alessandra Mularoni
- Dipartimento per la Cura e lo Studio delle Patologie Addominali e dei Trapianti Addominali, IRCCS-ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione), Palermo, Italy
| | - Paolo Grossi
- Dipartimento di Malattie Infettive e Tropicali, Università di Insubria, Ospedale di Circolo Fondazione Macchi, Varese, Italy
| | - Pier Giulio Conaldi
- Dipartimento di Ricerca, IRCCS-ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione), Palermo, Italy
| | - Bruno Douradinha
- Dipartimento di Ricerca, IRCCS-ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione), Palermo, Italy; Unità di Medicina Rigenerativa ed Immunologia, Fondazione Ri.MED, Palermo, Italy.
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10
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Santoro V, Schiavon M, Visentin I, Constán‐Aguilar C, Cardinale F, Celi L. Strigolactones affect phosphorus acquisition strategies in tomato plants. Plant Cell Environ 2021; 44:3628-3642. [PMID: 34414578 PMCID: PMC9290678 DOI: 10.1111/pce.14169] [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: 06/07/2021] [Revised: 07/22/2021] [Accepted: 08/09/2021] [Indexed: 05/23/2023]
Abstract
Strigolactones (SLs) are plant hormones that modulate morphological, physiological and biochemical changes as part of the acclimation strategies to phosphorus (P) deficiency, but an in-depth description of their effects on tomato P-acquisition strategies under P shortage is missing. Therefore, in this study, we investigate how SLs impact on root exudation and P uptake, in qualitative and quantitative terms over time, in wild-type and SL-depleted tomato plants grown with or without P. Under P shortage, SL-depleted plants were unable to efficiently activate most mechanisms associated with the P starvation response (PSR), except for the up-regulation of P transporters and increased activity of P-solubilizing enzymes. The reduced SL biosynthesis had negative effects also under normal P provision, because plants over-activated high-affinity transporters and enzymatic activities (phytase, acidic phosphatase) to sustain elevated P uptake, at great carbon and nitrogen costs. A shift in the onset of PSR was also highlighted in these plants. We conclude that SLs are master kinetic regulators of the PSR in tomato and that their defective synthesis might lead both to suboptimal nutritional outcomes under P depletion and an unbalanced control of P uptake when P is available.
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Affiliation(s)
| | | | | | - Christian Constán‐Aguilar
- DISAFA DepartmentUniversity of TurinGrugliascoItaly
- Department of Plant Physiology, Faculty of SciencesUniversity of GranadaGranadaSpain
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11
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Vaudano AE, Mirandola L, Talami F, Giovannini G, Monti G, Riguzzi P, Volpi L, Michelucci R, Bisulli F, Pasini E, Tinuper P, Di Vito L, Gessaroli G, Malagoli M, Pavesi G, Cardinale F, Tassi L, Lemieux L, Meletti S. fMRI-Based Effective Connectivity in Surgical Remediable Epilepsies: A Pilot Study. Brain Topogr 2021; 34:632-650. [PMID: 34152513 DOI: 10.1007/s10548-021-00857-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 06/13/2021] [Indexed: 11/24/2022]
Abstract
Simultaneous EEG-fMRI can contribute to identify the epileptogenic zone (EZ) in focal epilepsies. However, fMRI maps related to Interictal Epileptiform Discharges (IED) commonly show multiple regions of signal change rather than focal ones. Dynamic causal modeling (DCM) can estimate effective connectivity, i.e. the causal effects exerted by one brain region over another, based on fMRI data. Here, we employed DCM on fMRI data in 10 focal epilepsy patients with multiple IED-related regions of BOLD signal change, to test whether this approach can help the localization process of EZ. For each subject, a family of competing deterministic, plausible DCM models were constructed using IED as autonomous input at each node, one at time. The DCM findings were compared to the presurgical evaluation results and classified as: "Concordant" if the node identified by DCM matches the presumed focus, "Discordant" if the node is distant from the presumed focus, or "Inconclusive" (no statistically significant result). Furthermore, patients who subsequently underwent intracranial EEG recordings or surgery were considered as having an independent validation of DCM results. The effective connectivity focus identified using DCM was Concordant in 7 patients, Discordant in two cases and Inconclusive in one. In four of the 6 patients operated, the DCM findings were validated. Notably, the two Discordant and Invalidated results were found in patients with poor surgical outcome. Our findings provide preliminary evidence to support the applicability of DCM on fMRI data to investigate the epileptic networks in focal epilepsy and, particularly, to identify the EZ in complex cases.
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Affiliation(s)
- A E Vaudano
- Neurology Unit, OCB Hospital, Azienda Ospedaliero-Universitaria of Modena, Via Giardini 1355, 41100, Modena, Italy. .,Center for Neuroscience and Neurotechnology, Department of Biomedical, Metabolic, and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy.
| | - L Mirandola
- Center for Neuroscience and Neurotechnology, Department of Biomedical, Metabolic, and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - F Talami
- Center for Neuroscience and Neurotechnology, Department of Biomedical, Metabolic, and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - G Giovannini
- Neurology Unit, OCB Hospital, Azienda Ospedaliero-Universitaria of Modena, Via Giardini 1355, 41100, Modena, Italy.,Center for Neuroscience and Neurotechnology, Department of Biomedical, Metabolic, and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - G Monti
- Neurology Unit, AUSL Modena, Ospedale Ramazzini, Carpi, MO, Italy
| | - P Riguzzi
- IRCCS Istituto delle Scienze Neurologiche di Bologna, Unit of Neurology, Bellaria Hospital, Bologna, Italy
| | - L Volpi
- IRCCS Istituto delle Scienze Neurologiche di Bologna, Unit of Neurology, Bellaria Hospital, Bologna, Italy
| | - R Michelucci
- IRCCS Istituto delle Scienze Neurologiche di Bologna, Unit of Neurology, Bellaria Hospital, Bologna, Italy
| | - F Bisulli
- Department of Biomedical and NeuroMotor Sciences (DIBINEM), University of Bologna, Bologna, Italy.,IRCCS Istituto delle Scienze Neurologiche di Bologna, Epilepsy Center (Reference Center for Rare and Complex Epilepsies - EpiCARE), Bologna, Italy
| | - E Pasini
- IRCCS Istituto delle Scienze Neurologiche di Bologna, Unit of Neurology, Bellaria Hospital, Bologna, Italy
| | - P Tinuper
- Department of Biomedical and NeuroMotor Sciences (DIBINEM), University of Bologna, Bologna, Italy.,IRCCS Istituto delle Scienze Neurologiche di Bologna, Epilepsy Center (Reference Center for Rare and Complex Epilepsies - EpiCARE), Bologna, Italy
| | - L Di Vito
- Department of Biomedical and NeuroMotor Sciences (DIBINEM), University of Bologna, Bologna, Italy.,IRCCS Istituto delle Scienze Neurologiche di Bologna, Epilepsy Center (Reference Center for Rare and Complex Epilepsies - EpiCARE), Bologna, Italy
| | - G Gessaroli
- Neurology Unit, OCB Hospital, Azienda Ospedaliero-Universitaria of Modena, Via Giardini 1355, 41100, Modena, Italy
| | - M Malagoli
- Neuroradiology Unit, OCB Hospital, Azienda Ospedaliero-Universitaria of Modena, Modena, Italy
| | - G Pavesi
- Center for Neuroscience and Neurotechnology, Department of Biomedical, Metabolic, and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy.,Neurosurgery Unit, OCB Hospital, Azienda Ospedaliero-Universitaria of Modena, Modena, Italy
| | - F Cardinale
- "Claudio Munari" Epilepsy Surgery Center, Niguarda Hospital, Milan, Italy
| | - L Tassi
- "Claudio Munari" Epilepsy Surgery Center, Niguarda Hospital, Milan, Italy
| | - L Lemieux
- Department of Clinical and Experimental Epilepsy, UCL Queen Square Institute of Neurology, London, UK
| | - S Meletti
- Neurology Unit, OCB Hospital, Azienda Ospedaliero-Universitaria of Modena, Via Giardini 1355, 41100, Modena, Italy.,Center for Neuroscience and Neurotechnology, Department of Biomedical, Metabolic, and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
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12
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Bulati M, Busà R, Carcione C, Iannolo G, Di Mento G, Cuscino N, Di Gesù R, Piccionello AP, Buscemi S, Carreca AP, Barbera F, Monaco F, Cardinale F, Conaldi PG, Douradinha B. Klebsiella pneumoniae Lipopolysaccharides Serotype O2afg Induce Poor Inflammatory Immune Responses Ex Vivo. Microorganisms 2021; 9:microorganisms9061317. [PMID: 34204279 PMCID: PMC8234205 DOI: 10.3390/microorganisms9061317] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 05/03/2021] [Revised: 06/12/2021] [Accepted: 06/15/2021] [Indexed: 01/05/2023] Open
Abstract
Currently, Klebsiella pneumoniae is a pathogen of clinical relevance due to its plastic ability of acquiring resistance genes to multiple antibiotics. During K. pneumoniae infections, lipopolysaccharides (LPS) play an ambiguous role as they both activate immune responses but can also play a role in immune evasion. The LPS O2a and LPS O2afg serotypes are prevalent in most multidrug resistant K. pneumoniae strains. Thus, we sought to understand if those two particular LPS serotypes were involved in a mechanism of immune evasion. We have extracted LPS (serotypes O1, O2a and O2afg) from K. pneumoniae strains and, using human monocytes ex vivo, we assessed the ability of those LPS antigens to induce the production of pro-inflammatory cytokines and chemokines. We observed that, when human monocytes are incubated with LPS serotypes O1, O2a or O2afg strains, O2afg and, to a lesser extent, O2a but not O1 failed to elicit the production of pro-inflammatory cytokines and chemokines, which suggests a role in immune evasion. Our preliminary data also shows that nuclear translocation of NF-κB, a process which regulates an immune response against infections, occurs in monocytes incubated with LPS O1 and, to a smaller extent, with LPS O2a, but not with the LPS serotype O2afg. Our results indicate that multidrug resistant K. pneumoniae expressing LPS O2afg serotypes avoid an initial inflammatory immune response and, consequently, are able to systematically spread inside the host unharmed, which results in the several pathologies associated with this bacterium.
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Affiliation(s)
- Matteo Bulati
- Istituto di Ricovero e Cura a Carattere Scientifico-Istituto Mediterraneo per i Trapianti e Terapie ad Alta, Specializzazione (IRCCS-ISMETT), 90127 Palermo, Italy; (M.B.); (R.B.); (G.I.); (G.D.M.); (N.C.); (F.B.); (F.M.); (F.C.); (P.G.C.)
| | - Rosalia Busà
- Istituto di Ricovero e Cura a Carattere Scientifico-Istituto Mediterraneo per i Trapianti e Terapie ad Alta, Specializzazione (IRCCS-ISMETT), 90127 Palermo, Italy; (M.B.); (R.B.); (G.I.); (G.D.M.); (N.C.); (F.B.); (F.M.); (F.C.); (P.G.C.)
| | - Claudia Carcione
- Fondazione Ri.MED, 90133 Palermo, Italy; (C.C.); (R.D.G.); (A.P.C.)
| | - Gioacchin Iannolo
- Istituto di Ricovero e Cura a Carattere Scientifico-Istituto Mediterraneo per i Trapianti e Terapie ad Alta, Specializzazione (IRCCS-ISMETT), 90127 Palermo, Italy; (M.B.); (R.B.); (G.I.); (G.D.M.); (N.C.); (F.B.); (F.M.); (F.C.); (P.G.C.)
| | - Giuseppina Di Mento
- Istituto di Ricovero e Cura a Carattere Scientifico-Istituto Mediterraneo per i Trapianti e Terapie ad Alta, Specializzazione (IRCCS-ISMETT), 90127 Palermo, Italy; (M.B.); (R.B.); (G.I.); (G.D.M.); (N.C.); (F.B.); (F.M.); (F.C.); (P.G.C.)
| | - Nicola Cuscino
- Istituto di Ricovero e Cura a Carattere Scientifico-Istituto Mediterraneo per i Trapianti e Terapie ad Alta, Specializzazione (IRCCS-ISMETT), 90127 Palermo, Italy; (M.B.); (R.B.); (G.I.); (G.D.M.); (N.C.); (F.B.); (F.M.); (F.C.); (P.G.C.)
| | - Roberto Di Gesù
- Fondazione Ri.MED, 90133 Palermo, Italy; (C.C.); (R.D.G.); (A.P.C.)
| | - Antonio Palumbo Piccionello
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies-STEBICEF, University of Palermo, 90133 Palermo, Italy; (A.P.P.); (S.B.)
| | - Silvestre Buscemi
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies-STEBICEF, University of Palermo, 90133 Palermo, Italy; (A.P.P.); (S.B.)
| | | | - Floriana Barbera
- Istituto di Ricovero e Cura a Carattere Scientifico-Istituto Mediterraneo per i Trapianti e Terapie ad Alta, Specializzazione (IRCCS-ISMETT), 90127 Palermo, Italy; (M.B.); (R.B.); (G.I.); (G.D.M.); (N.C.); (F.B.); (F.M.); (F.C.); (P.G.C.)
| | - Francesco Monaco
- Istituto di Ricovero e Cura a Carattere Scientifico-Istituto Mediterraneo per i Trapianti e Terapie ad Alta, Specializzazione (IRCCS-ISMETT), 90127 Palermo, Italy; (M.B.); (R.B.); (G.I.); (G.D.M.); (N.C.); (F.B.); (F.M.); (F.C.); (P.G.C.)
| | - Francesca Cardinale
- Istituto di Ricovero e Cura a Carattere Scientifico-Istituto Mediterraneo per i Trapianti e Terapie ad Alta, Specializzazione (IRCCS-ISMETT), 90127 Palermo, Italy; (M.B.); (R.B.); (G.I.); (G.D.M.); (N.C.); (F.B.); (F.M.); (F.C.); (P.G.C.)
| | - Pier Giulio Conaldi
- Istituto di Ricovero e Cura a Carattere Scientifico-Istituto Mediterraneo per i Trapianti e Terapie ad Alta, Specializzazione (IRCCS-ISMETT), 90127 Palermo, Italy; (M.B.); (R.B.); (G.I.); (G.D.M.); (N.C.); (F.B.); (F.M.); (F.C.); (P.G.C.)
| | - Bruno Douradinha
- Istituto di Ricovero e Cura a Carattere Scientifico-Istituto Mediterraneo per i Trapianti e Terapie ad Alta, Specializzazione (IRCCS-ISMETT), 90127 Palermo, Italy; (M.B.); (R.B.); (G.I.); (G.D.M.); (N.C.); (F.B.); (F.M.); (F.C.); (P.G.C.)
- Fondazione Ri.MED, 90133 Palermo, Italy; (C.C.); (R.D.G.); (A.P.C.)
- Correspondence: ; Tel.: +39-091-2192649; Fax: +39-091-2192423
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13
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Sedaghat M, Emam Y, Mokhtassi-Bidgoli A, Hazrati S, Lovisolo C, Visentin I, Cardinale F, Tahmasebi-Sarvestani Z. The Potential of the Synthetic Strigolactone Analogue GR24 for the Maintenance of Photosynthesis and Yield in Winter Wheat under Drought: Investigations on the Mechanisms of Action and Delivery Modes. Plants (Basel) 2021; 10:plants10061223. [PMID: 34208497 PMCID: PMC8233996 DOI: 10.3390/plants10061223] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 06/11/2021] [Accepted: 06/12/2021] [Indexed: 12/21/2022]
Abstract
Strigolactones (SLs) have been implicated in many plant biological and physiological processes, including the responses to abiotic stresses such as drought, in concert with other phytohormones. While it is now clear that exogenous SLs may help plants to survive in harsh environmental condition, the best, most effective protocols for treatment have not been defined yet, and the mechanisms of action are far from being fully understood. In the set of experiments reported here, we contrasted two application methods for treatment with a synthetic analog of SL, GR24. A number of morphometric, physiological and biochemical parameters were measured following foliar application of GR24 or application in the residual irrigation water in winter wheat plants under irrigated and drought stress conditions. Depending on the concentration and the method of GR24 application, differentiated photosynthesis and transpiration rate, stomatal conductance, leaf water potential, antioxidant enzyme activities and yield in drought conditions were observed. We present evidence that different methods of GR24 application led to increased photosynthesis and yield under stress by a combination of drought tolerance and escape factors, which should be considered for future research exploring the potential of this new family of bioactive molecules for practical applications.
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Affiliation(s)
- Mojde Sedaghat
- Department of Environmental and Plant Biology, Ohio University, Athens, OH 45701, USA
- Correspondence:
| | - Yahya Emam
- Department of Plant Production and Genetics, School of Agriculture, Shiraz University, Shiraz 7144165186, Iran;
| | - Ali Mokhtassi-Bidgoli
- Department of Agronomy, Faculty of Agriculture, Tarbiat Modares University, Tehran 14115111, Iran; (A.M.-B.); (Z.T.-S.)
| | - Saeid Hazrati
- Department of Agronomy, Faculty of Agriculture, Azarbaijan Shahid Madani University, Tabriz 53714161, Iran;
| | - Claudio Lovisolo
- Department of Agricultural, Forest and Food Sciences (DISAFA), University of Turin, 10095 Grugliasco, Italy; (C.L.); (I.V.); (F.C.)
| | - Ivan Visentin
- Department of Agricultural, Forest and Food Sciences (DISAFA), University of Turin, 10095 Grugliasco, Italy; (C.L.); (I.V.); (F.C.)
| | - Francesca Cardinale
- Department of Agricultural, Forest and Food Sciences (DISAFA), University of Turin, 10095 Grugliasco, Italy; (C.L.); (I.V.); (F.C.)
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14
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Pasqua S, Vitale G, Pasquariello A, Douradinha B, Tuzzolino F, Cardinale F, Cusimano C, Di Bartolo C, Conaldi PG, D'Apolito D. Use of 27G needles improves sensitivity and performance of ATCC anaerobe reference microorganism detection in BacT/Alert system. Mol Ther Methods Clin Dev 2021; 20:542-550. [PMID: 33665224 PMCID: PMC7890369 DOI: 10.1016/j.omtm.2021.01.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 01/18/2021] [Indexed: 11/26/2022]
Abstract
Effective detection of microbiological contaminations present in medicinal cellular products is a crucial step to ensure patients' safety. In recent decades, several rapid microbiological methods have been developed and validated, but variabilities linked to the use of different resources have led to discordant validation of methods and performance results. Considering this, while developing an in-house BacT/Alert-based method, we evaluated all of the materials used in its validation. Of particular importance, we noticed that the syringe gauge used to inject the samples into the bottles was crucial to obtain robust results. We chose to conduct a comparative test between the BacT/Alert system and the compendial method described in the European Pharmacopoeia, using five dilutions of nine reference microorganism strains and 21G or 27G needles. Our results confirmed that the BacT/Alert system is a valid and faster alternative method to assess sterility of clinical cell therapy products, and that the use of 27G needles increases its sensitivity to detect reference anaerobe microorganisms.
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Affiliation(s)
- Salvatore Pasqua
- Unità Prodotti Cellulari (GMP), Fondazione Ri.MED c/o IRCCS-ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione), Via E. Tricomi 5, 90127 Palermo, Italy
| | - Giampiero Vitale
- Unità Prodotti Cellulari (GMP), Fondazione Ri.MED c/o IRCCS-ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione), Via E. Tricomi 5, 90127 Palermo, Italy
| | - Anna Pasquariello
- Unità di Medicina di Laboratorio e Biotecnologie Avanzate, IRCCS-ISMETT, Via E. Tricomi 5, 90127 Palermo, Italy
| | - Bruno Douradinha
- Unità di Medicina di Laboratorio e Biotecnologie Avanzate, IRCCS-ISMETT, Via E. Tricomi 5, 90127 Palermo, Italy.,Unità Medicina Rigenerativa ed Immunologia, Fondazione Ri.MED c/o IRCCS-ISMETT, Via E. Tricomi 5, 90127 Palermo, Italy
| | - Fabio Tuzzolino
- Ufficio Ricerca, IRCCS-ISMETT, Via E. Tricomi 5, 90127 Palermo, Italy
| | - Francesca Cardinale
- Unità di Medicina di Laboratorio e Biotecnologie Avanzate, IRCCS-ISMETT, Via E. Tricomi 5, 90127 Palermo, Italy
| | - Chiara Cusimano
- Unità di Medicina di Laboratorio e Biotecnologie Avanzate, IRCCS-ISMETT, Via E. Tricomi 5, 90127 Palermo, Italy
| | - Chiara Di Bartolo
- Unità Prodotti Cellulari (GMP), Fondazione Ri.MED c/o IRCCS-ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione), Via E. Tricomi 5, 90127 Palermo, Italy.,Unità di Medicina di Laboratorio e Biotecnologie Avanzate, IRCCS-ISMETT, Via E. Tricomi 5, 90127 Palermo, Italy
| | - Pier Giulio Conaldi
- Unità di Medicina di Laboratorio e Biotecnologie Avanzate, IRCCS-ISMETT, Via E. Tricomi 5, 90127 Palermo, Italy
| | - Danilo D'Apolito
- Unità Prodotti Cellulari (GMP), Fondazione Ri.MED c/o IRCCS-ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione), Via E. Tricomi 5, 90127 Palermo, Italy.,Unità di Medicina di Laboratorio e Biotecnologie Avanzate, IRCCS-ISMETT, Via E. Tricomi 5, 90127 Palermo, Italy
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15
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Korwin Krukowski P, Ellenberger J, Röhlen-Schmittgen S, Schubert A, Cardinale F. Phenotyping in Arabidopsis and Crops-Are We Addressing the Same Traits? A Case Study in Tomato. Genes (Basel) 2020; 11:E1011. [PMID: 32867311 PMCID: PMC7564427 DOI: 10.3390/genes11091011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 08/21/2020] [Accepted: 08/24/2020] [Indexed: 11/18/2022] Open
Abstract
The convenient model Arabidopsis thaliana has allowed tremendous advances in plant genetics and physiology, in spite of only being a weed. It has also unveiled the main molecular networks governing, among others, abiotic stress responses. Through the use of the latest genomic tools, Arabidopsis research is nowadays being translated to agronomically interesting crop models such as tomato, but at a lagging pace. Knowledge transfer has been hindered by invariable differences in plant architecture and behaviour, as well as the divergent direct objectives of research in Arabidopsis versus crops compromise transferability. In this sense, phenotype translation is still a very complex matter. Here, we point out the challenges of "translational phenotyping" in the case study of drought stress phenotyping in Arabidopsis and tomato. After briefly defining and describing drought stress and survival strategies, we compare drought stress protocols and phenotyping techniques most commonly used in the two species, and discuss their potential to gain insights, which are truly transferable between species. This review is intended to be a starting point for discussion about translational phenotyping approaches among plant scientists, and provides a useful compendium of methods and techniques used in modern phenotyping for this specific plant pair as a case study.
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Affiliation(s)
- Paolo Korwin Krukowski
- Plant Stress Lab, Department of Agriculture, Forestry and Food Sciences DISAFA-Turin University, 10095 Grugliasco, Italy; (A.S.); (F.C.)
| | - Jan Ellenberger
- INRES Horticultural Sciences, University of Bonn, 53121 Bonn, Germany;
| | | | - Andrea Schubert
- Plant Stress Lab, Department of Agriculture, Forestry and Food Sciences DISAFA-Turin University, 10095 Grugliasco, Italy; (A.S.); (F.C.)
| | - Francesca Cardinale
- Plant Stress Lab, Department of Agriculture, Forestry and Food Sciences DISAFA-Turin University, 10095 Grugliasco, Italy; (A.S.); (F.C.)
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D'Apolito D, Arena F, Conte V, De Angelis LH, Di Mento G, Carreca AP, Cuscino N, Russelli G, Iannolo G, Barbera F, Pasqua S, Monaco F, Cardinale F, Rossolini GM, Conaldi PG, Douradinha B. Phenotypical and molecular assessment of the virulence potential of KPC-3-producing Klebsiella pneumoniae ST392 clinical isolates. Microbiol Res 2020; 240:126551. [PMID: 32652494 DOI: 10.1016/j.micres.2020.126551] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 06/28/2020] [Accepted: 07/03/2020] [Indexed: 12/31/2022]
Abstract
Klebsiella pneumoniae is a Gram-negative bacterium of clinical importance, due to its resistance to several antibiotic classes. We have identified 4 clinical isolates of K. pneumoniae sequence type (ST) 392 KPC-3-producing strains from patients at the Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione (IRCCS-ISMETT), a Southern Italian transplantation health facility, during a routine surveillance for carbapenemase-producing Enterobacterales from in-house clinical samples. Since those were among, to the best of our knowledge, the first KPC-producing K. pneumoniae ST392 isolated in Europe, we assessed their virulence potential, to understand if this particular ST can become an endemic clinical threat. ST392 isolates were investigated to assess their virulence potential, namely resistance to human sera, formation of abiotic biofilms, adhesion to biotic surfaces, exopolysaccharide production and in vivo pathogenesis in the wax moth Galleria mellonella animal model. ST392-belonging strains were highly resistant to human sera. These strains also have a high capacity to form abiotic biofilms and high levels of adhesion to the human epithelial colorectal adenocarcinoma HT-29 cell line. An increase of transcriptional levels of genes involved in serum resistance (aroE and traT) and adhesion (pgaA) was observed when compared with the Klebsiella quasipneumoniae subsp. similipneumoniae strain ATCC 700603 reference strain. Infection of G. mellonella larvae with ST392 clinical isolates showed that the latter were not highly pathogenic in this model. Together, our results indicate that ST392 isolates have the potential to become a strain of clinical relevance, especially in health settings where patients are immunosuppressed, e.g., transplant recipients.
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Affiliation(s)
| | - Fabio Arena
- Dipartimento di Medicina Clinica e Sperimentale, Università di Foggia, Foggia, Italy; IRCCS Fondazione Don Carlo Gnocchi, Milan, Italy
| | - Viola Conte
- Dipartimento di Biotecnologie Mediche, Università degli Studi di Siena, Siena, Italy
| | | | | | | | | | | | | | | | | | | | | | - Gian Maria Rossolini
- Dipartimento di Medicina Sperimentale e Clinica, Università degli Studi di Firenze, Florence, Italy; SOD Microbiologia e Virologia, Azienda Ospedaliera Universitaria Careggi Florence, Italy
| | | | - Bruno Douradinha
- Fondazione Ri.MED, Palermo, Italy; IRCCS-ISMETT, Palermo, Italy.
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Visentin I, Pagliarani C, Deva E, Caracci A, Turečková V, Novák O, Lovisolo C, Schubert A, Cardinale F. A novel strigolactone-miR156 module controls stomatal behaviour during drought recovery. Plant Cell Environ 2020; 43:1613-1624. [PMID: 32196123 DOI: 10.1111/pce.13758] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [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: 01/17/2020] [Revised: 03/05/2020] [Accepted: 03/08/2020] [Indexed: 05/12/2023]
Abstract
miR156 is a conserved microRNA whose role and induction mechanisms under stress are poorly known. Strigolactones are phytohormones needed in shoots for drought acclimation. They promote stomatal closure ABA-dependently and independently; however, downstream effectors for the former have not been identified. Linkage between miR156 and strigolactones under stress has not been reported. We compared ABA accumulation and sensitivity as well as performances of wt and miR156-overexpressing (miR156-oe) tomato plants during drought. We also quantified miR156 levels in wt, strigolactone-depleted and strigolactone-treated plants, exposed to drought stress. Under irrigated conditions, miR156 overexpression and strigolactone treatment led to lower stomatal conductance and higher ABA sensitivity. Exogenous strigolactones were sufficient for miR156 accumulation in leaves, while endogenous strigolactones were required for miR156 induction by drought. The "after-effect" of drought, by which stomata do not completely re-open after rewatering, was enhanced by both strigolactones and miR156. The transcript profiles of several miR156 targets were altered in strigolactone-depleted plants. Our results show that strigolactones act as a molecular link between drought and miR156 in tomato, and identify miR156 as a mediator of ABA-dependent effect of strigolactones on the after-effect of drought on stomata. Thus, we provide insights into both strigolactone and miR156 action on stomata.
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Affiliation(s)
- Ivan Visentin
- Plant Stress Lab, Department of Agriculture, Forestry and Food Science DISAFA - Turin University, Grugliasco, Italy
| | - Chiara Pagliarani
- Plant Stress Lab, Department of Agriculture, Forestry and Food Science DISAFA - Turin University, Grugliasco, Italy
- Institute for Sustainable Plant Protection, National Research Council, Turin, Italy
| | - Eleonora Deva
- Plant Stress Lab, Department of Agriculture, Forestry and Food Science DISAFA - Turin University, Grugliasco, Italy
- Centre for Biotech & Agricultural Research StrigoLab Srl, Turin, Italy
| | - Alessio Caracci
- Plant Stress Lab, Department of Agriculture, Forestry and Food Science DISAFA - Turin University, Grugliasco, Italy
| | - Veronika Turečková
- Laboratory of Growth Regulators, Centre of the Region Haná for Biotechnological and Agricultural Research, Palacký University and Institute of Experimental Botany, Czech Academy of Sciences, Olomouc, Czech Republic
| | - Ondrej Novák
- Laboratory of Growth Regulators, Centre of the Region Haná for Biotechnological and Agricultural Research, Palacký University and Institute of Experimental Botany, Czech Academy of Sciences, Olomouc, Czech Republic
| | - Claudio Lovisolo
- Plant Stress Lab, Department of Agriculture, Forestry and Food Science DISAFA - Turin University, Grugliasco, Italy
| | - Andrea Schubert
- Plant Stress Lab, Department of Agriculture, Forestry and Food Science DISAFA - Turin University, Grugliasco, Italy
| | - Francesca Cardinale
- Plant Stress Lab, Department of Agriculture, Forestry and Food Science DISAFA - Turin University, Grugliasco, Italy
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18
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Santoro V, Schiavon M, Gresta F, Ertani A, Cardinale F, Sturrock CJ, Celi L, Schubert A. Strigolactones Control Root System Architecture and Tip Anatomy in Solanum Lycopersicum L. Plants under P Starvation. Plants (Basel) 2020; 9:E612. [PMID: 32403352 PMCID: PMC7285494 DOI: 10.3390/plants9050612] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/05/2020] [Accepted: 05/06/2020] [Indexed: 01/11/2023]
Abstract
The hormones strigolactones accumulate in plant roots under phosphorus (P) shortage, inducing variations in plant phenotype. In this study, we aimed at understanding whether strigolactones control morphological and anatomical changes in tomato (Solanum lycopersicum L.) roots under varying P supply. Root traits were evaluated in wild-type seedlings grown in high vs low P, with or without exogenous strigolactones, and in wild-type and strigolactone-depleted plants grown first under high vs no P, and then under high vs no P after acclimation on low P. Exogenous strigolactones stimulated primary root and lateral root number under low P. Root growth was reduced in strigolactone-depleted plants maintained under continuous P deprivation. Total root and root hair length, lateral root number and root tip anatomy were impaired by low strigolactone biosynthesis in plants grown under low P or transferred from low to no P. Under adequate P conditions, root traits of strigolactone-depleted and wild-type plants were similar. Concluding, our results indicate that strigolactones i) control macro- and microscopic changes of root in tomato depending on P supply; and ii) do not affect root traits significantly when plants are supplemented with adequate P, but are needed for acclimation to no P and typical responses to low P.
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Affiliation(s)
- Veronica Santoro
- Dipartimento di Scienze Agrarie, Forestali e Alimentari (DISAFA), Largo Paolo Braccini 2 (già Via Leonardo da Vinci, 44), 10095 Grugliasco (Torino), Italy; (V.S.); (F.G.); (A.E.); (F.C.); (L.C.); (A.S.)
| | - Michela Schiavon
- Dipartimento di Agronomia, Animali, Alimenti, Risorse naturali e Ambiente (DAFNAE), Viale dell’Università 16, 35020 Legnaro (Padova), Italy
| | - Francesco Gresta
- Dipartimento di Scienze Agrarie, Forestali e Alimentari (DISAFA), Largo Paolo Braccini 2 (già Via Leonardo da Vinci, 44), 10095 Grugliasco (Torino), Italy; (V.S.); (F.G.); (A.E.); (F.C.); (L.C.); (A.S.)
| | - Andrea Ertani
- Dipartimento di Scienze Agrarie, Forestali e Alimentari (DISAFA), Largo Paolo Braccini 2 (già Via Leonardo da Vinci, 44), 10095 Grugliasco (Torino), Italy; (V.S.); (F.G.); (A.E.); (F.C.); (L.C.); (A.S.)
| | - Francesca Cardinale
- Dipartimento di Scienze Agrarie, Forestali e Alimentari (DISAFA), Largo Paolo Braccini 2 (già Via Leonardo da Vinci, 44), 10095 Grugliasco (Torino), Italy; (V.S.); (F.G.); (A.E.); (F.C.); (L.C.); (A.S.)
| | - Craig J. Sturrock
- School of Biosciences, University of Nottingham, Loughborough LE12 5RD, UK;
| | - Luisella Celi
- Dipartimento di Scienze Agrarie, Forestali e Alimentari (DISAFA), Largo Paolo Braccini 2 (già Via Leonardo da Vinci, 44), 10095 Grugliasco (Torino), Italy; (V.S.); (F.G.); (A.E.); (F.C.); (L.C.); (A.S.)
| | - Andrea Schubert
- Dipartimento di Scienze Agrarie, Forestali e Alimentari (DISAFA), Largo Paolo Braccini 2 (già Via Leonardo da Vinci, 44), 10095 Grugliasco (Torino), Italy; (V.S.); (F.G.); (A.E.); (F.C.); (L.C.); (A.S.)
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19
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Chiappini E, Petrolini C, Caffarelli C, Calvani M, Cardinale F, Duse M, Licari A, Manti S, Martelli A, Minasi D, Miraglia Del Giudice M, Pajno GB, Pietrasanta C, Pugni L, Tosca MA, Mosca F, Marseglia GL. Hexavalent vaccines in preterm infants: an update by Italian Society of Pediatric Allergy and Immunology jointly with the Italian Society of Neonatology. Ital J Pediatr 2019; 45:145. [PMID: 31744514 PMCID: PMC6862761 DOI: 10.1186/s13052-019-0742-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 10/23/2019] [Indexed: 03/16/2023] Open
Abstract
Hexavalent vaccines, protecting against six diseases (diphtheria, tetanus, pertussis [DTaP], poliovirus, hepatitis B virus [HBV], and Haemophilus influenzae type b [Hib], are routinely the standard of care in Europe. The use of combined vaccines allows the reduction of number of injections and side effects, the reduction of costs, and the increase in adherence of the family to the vaccination schedule both in terms of the number of doses and timing. The safety profile, efficacy and effectiveness of hexavalent vaccines have been extensively documented in infants and children born at term, and data are accumulating in preterm infants. Hexavalent vaccines are particularly important for preterm infants, who are at increased risk for severe forms of vaccine preventable diseases. However, immunization delay has been commonly reported in this age group. All the three hexavalent vaccines currently marketed in Italy can be used in preterm infants, and recent data confirm that hexavalent vaccines have a similar or lower incidence of adverse events in preterm compared to full-term infants; this is likely due to a weaker immune system response and reduced ability to induce an inflammatory response in preterm infants. Apnoea episodes are the adverse events that can occur in the most severe preterm infants and / or with history of respiratory distress. The risk of apnoea after vaccination seems to be related to a lower gestational age and a lower birth weight, supporting the hypothesis that it represents an unspecific response of the preterm infant to different procedures. High seroprotection rates have been reported in preterm infants vaccinated with hexavalent vaccine. However, a lower gestational age seems to be associated with lower antibody titres against some vaccine antigens (e.g. HBV, Hib, poliovirus serotype 1, and pertussis), regardless of the type of hexavalent vaccine used. Waiting for large effectiveness studies, hexavalent vaccines should be administered in preterm infants according to the same schedule recommended for infants born at term, considering their chronological age and providing an adequate monitoring for cardio-respiratory events in the 48–72 h after vaccination, especially for infants at risk of recurrence of apnoea.
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Affiliation(s)
- E Chiappini
- SODc Malattie Infettive AOU Meyer, Dipartimento di Scienze della Salute, Università di Firenze, Firenze, Italy.
| | - C Petrolini
- Dipartimento di Scienze della Salute, Università di Firenze, Firenze, Italy
| | - C Caffarelli
- Clinica Pediatrica, Dipartimento di Medicina e Chirurgia, Università di Parma, Parma, Italy
| | - M Calvani
- Dipartimento di Pediatria, Ospedale S. Camillo-Forlanini, Roma, Italy
| | - F Cardinale
- UOC Pediatria, Servizio di Allergologia e Pneumologia Pediatrica, Azienda Ospedaliera-Universitaria "Consorziale-Policlinico", Ospedale Pediatrico Giovanni XXIII, Bari, Italy
| | - M Duse
- Dipartimento di Pediatria, Policlinico Umberto I, Università Sapienza di Roma, Roma, Italy
| | - A Licari
- Clinica Pediatrica, Fondazione IRCCS Policlinico "S. Matteo", Università di Pavia, Pavia, Italy
| | - S Manti
- Dipartimento di Medicina Clinica e Sperimentale, Unità di Broncopneumologia Pediatrica, Università di Catania, Catania, Italy
| | - A Martelli
- UOC Pediatria, Azienda Ospedaliera G. Salvini, Ospedali di Garbagnate Milanese e Bollate, Milano, Italy
| | - D Minasi
- Unità Pediatria, Ospedale di Polistena, Reggio Calabria, Italy
| | - M Miraglia Del Giudice
- Dipartimento della Donna, del Bambino e di Chirurgia Generale e Specialistica, Università della Campania Luigi Vanvitelli, Napoli, Italy
| | - G B Pajno
- Dipartimento di Pediatria, Unità di Allergologia, Università di Messina, Messina, Italy
| | - C Pietrasanta
- Terapia intensiva neonatale, Fondazione IRCCS "Ca' Granda", Ospedale Maggiore Policlinico; Dipartimento di Scienze Cliniche e di Comunità, Università di Milano, Milano, Italy
| | - L Pugni
- Terapia intensiva neonatale, Fondazione IRCCS "Ca' Granda", Ospedale Maggiore Policlinico; Dipartimento di Scienze Cliniche e di Comunità, Università di Milano, Milano, Italy
| | - M A Tosca
- Allergologia Pediatrica, Istituto Giannina Gaslini, Genova, Italy
| | - F Mosca
- Terapia intensiva neonatale, Fondazione IRCCS "Ca' Granda", Ospedale Maggiore Policlinico; Dipartimento di Scienze Cliniche e di Comunità, Università di Milano, Milano, Italy
| | - G L Marseglia
- Clinica Pediatrica, Fondazione IRCCS Policlinico "S. Matteo", Università di Pavia, Pavia, Italy
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Ferrero M, Pagliarani C, Novák O, Ferrandino A, Cardinale F, Visentin I, Schubert A. Exogenous strigolactone interacts with abscisic acid-mediated accumulation of anthocyanins in grapevine berries. J Exp Bot 2018; 69:2391-2401. [PMID: 29401281 PMCID: PMC5913642 DOI: 10.1093/jxb/ery033] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [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: 10/03/2017] [Accepted: 01/22/2018] [Indexed: 05/18/2023]
Abstract
Besides signalling to soil organisms, strigolactones (SLs) control above- and below-ground morphology, in particular shoot branching. Furthermore, SLs interact with stress responses, possibly thanks to a crosstalk with the abscisic acid (ABA) signal. In grapevine (Vitis vinifera L.), ABA drives the accumulation of anthocyanins over the ripening season. In this study, we investigated the effects of treatment with a synthetic strigolactone analogue, GR24, on anthocyanin accumulation in grape berries, in the presence or absence of exogenous ABA treatment. Experiments were performed both on severed, incubated berries, and on berries attached to the vine. Furthermore, we analysed the corresponding transcript concentrations of genes involved in anthocyanin biosynthesis, and in ABA biosynthesis, metabolism, and membrane transport. During the experiment time courses, berries showed the expected increase in soluble sugars and anthocyanins. GR24 treatment had no or little effect on anthocyanin accumulation, or on gene expression levels. Exogenous ABA treatment activated soluble sugar and anthocyanin accumulation, and enhanced expression of anthocyanin and ABA biosynthetic genes, and that of genes involved in ABA hydroxylation and membrane transport. Co-treatment of GR24 with ABA delayed anthocyanin accumulation, decreased expression of anthocyanin biosynthetic genes, and negatively affected ABA concentration. GR24 also enhanced the ABA-induced activation of ABA hydroxylase genes, while it down-regulated the ABA-induced activation of ABA transport genes. Our results show that GR24 affects the ABA-induced activation of anthocyanin biosynthesis in this non-climacteric fruit. We discuss possible mechanisms underlying this effect, and the potential role of SLs in ripening of non-ABA-treated berries.
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Affiliation(s)
- Manuela Ferrero
- PlantStressLab, Department of Agricultural, Forestry, and Food Sciences, University of Turin, Grugliasco, Italy
| | - Chiara Pagliarani
- PlantStressLab, Department of Agricultural, Forestry, and Food Sciences, University of Turin, Grugliasco, Italy
| | - Ondřej Novák
- Laboratory of Growth Regulators, Palacký University & Institute of Experimental Botany AS CR, Olomouc, Czech Republic
| | - Alessandra Ferrandino
- PlantStressLab, Department of Agricultural, Forestry, and Food Sciences, University of Turin, Grugliasco, Italy
| | - Francesca Cardinale
- PlantStressLab, Department of Agricultural, Forestry, and Food Sciences, University of Turin, Grugliasco, Italy
| | - Ivan Visentin
- PlantStressLab, Department of Agricultural, Forestry, and Food Sciences, University of Turin, Grugliasco, Italy
| | - Andrea Schubert
- PlantStressLab, Department of Agricultural, Forestry, and Food Sciences, University of Turin, Grugliasco, Italy
- Correspondence:
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21
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Sanchez E, Artuso E, Lombardi C, Visentin I, Lace B, Saeed W, Lolli ML, Kobauri P, Ali Z, spyrakis F, Cubas P, Cardinale F, Prandi C. Structure-activity relationships of strigolactones via a novel, quantitative in planta bioassay. J Exp Bot 2018; 69:2333-2343. [PMID: 29554337 PMCID: PMC5913603 DOI: 10.1093/jxb/ery092] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [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: 01/15/2018] [Accepted: 02/27/2018] [Indexed: 06/01/2023]
Abstract
Strigolactones (SLs) are plant hormones with various functions in development, responses to stress, and interactions with (micro)organisms in the rhizosphere, including with seeds of parasitic plants. Their perception for hormonal functions requires an α,β-hydrolase belonging to the D14 clade in higher plants; perception of host-produced SLs by parasitic seeds relies on similar but phylogenetically distinct proteins (D14-like). D14 and D14-like proteins are peculiar receptors, because they cleave SLs before undergoing a conformational change that elicits downstream events. Structure-activity relationship data show that the butenolide D-ring is crucial for bioactivity. We applied a bioisosteric approach to the structure of SLs by synthetizing analogues and mimics of natural SLs in which the D-ring was changed from a butenolide to a lactam and then evaluating their bioactivity. This was done by using a novel bioassay based on Arabidopsis transgenic lines expressing AtD14 fused to firefly luciferase, in parallel with the quantification of germination-inducing activity on parasitic seeds. The results obtained showed that the in planta bioassay is robust and quantitative, and thus can be confidently added to the SL-survey toolbox. The results also showed that modification of the butenolide ring into a lactam one significantly hampers the biological activity exhibited by SLs possessing a canonical lactonic D-ring.
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Affiliation(s)
- Elena Sanchez
- Centro Nacional de Biotecnología-CSIC, Plant Molecular Genetics Department, C/ Darwin, Campus UAM, Madrid, Spain
| | - Emma Artuso
- Department of Chemistry, University of Turin, via P. Giuria Turin, Italy
| | - Chiara Lombardi
- Centro Nacional de Biotecnología-CSIC, Plant Molecular Genetics Department, C/ Darwin, Campus UAM, Madrid, Spain
| | - Ivan Visentin
- Department of Agricultural, Forestry and Food Science, Largo P. Braccini, Grugliasco (TO), Italy
| | - Beatrice Lace
- Centro Nacional de Biotecnología-CSIC, Plant Molecular Genetics Department, C/ Darwin, Campus UAM, Madrid, Spain
- University of Freiburg, Faculty of Biology, Cell Biology, Schänzlestr., Freiburg, Germany
| | - Wajeeha Saeed
- Department of Agricultural, Forestry and Food Science, Largo P. Braccini, Grugliasco (TO), Italy
- Department of Biosciences, COMSATS Institute of Information Technology, Islamabad, Pakistan
| | - Marco L Lolli
- Department of Drug Science and Technology, University of Turin, via P. Giuria Turin, Italy
| | - Piermichele Kobauri
- Department of Drug Science and Technology, University of Turin, via P. Giuria Turin, Italy
| | - Zahid Ali
- Department of Biosciences, COMSATS Institute of Information Technology, Islamabad, Pakistan
| | - Francesca spyrakis
- Department of Drug Science and Technology, University of Turin, via P. Giuria Turin, Italy
| | - Pilar Cubas
- Department of Chemistry, University of Turin, via P. Giuria Turin, Italy
| | - Francesca Cardinale
- Department of Agricultural, Forestry and Food Science, Largo P. Braccini, Grugliasco (TO), Italy
| | - Cristina Prandi
- Centro Nacional de Biotecnología-CSIC, Plant Molecular Genetics Department, C/ Darwin, Campus UAM, Madrid, Spain
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Cardinale F, Korwin Krukowski P, Schubert A, Visentin I. Strigolactones: mediators of osmotic stress responses with a potential for agrochemical manipulation of crop resilience. J Exp Bot 2018; 69:2291-2303. [PMID: 29346683 DOI: 10.1093/jxb/erx494] [Citation(s) in RCA: 11] [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] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 12/19/2017] [Indexed: 05/03/2023]
Abstract
After quickly touching upon general aspects of strigolactone biology and functions, including structure, synthesis, and perception, this review focuses on the role and regulation of the strigolactone pathway during osmotic stress, in light of the most recent research developments. We discuss available data on organ-specific dynamics of strigolactone synthesis and interaction with abscisic acid in the acclimatization response, with emphasis on the ecophysiological implications of the effects on the stomatal closure process. We highlight the importance of considering roots and shoots separately as well as combined versus individual stress treatments; and of performing reciprocal grafting experiments to work out organ contributions and long-distance signalling events and components under more realistic conditions. Finally, we elaborate on the question of if and how synthetic or natural strigolactones, alone or in combination with crop management strategies such as grafting, hold potential to maximize crop resilience to abiotic stresses.
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Affiliation(s)
- Francesca Cardinale
- Department of Agriculture, Forestry and Food Science (DISAFA), Plant Stress Laboratory, Turin University, Largo Paolo Braccini, Grugliasco (TO), Italy
| | - Paolo Korwin Krukowski
- Department of Agriculture, Forestry and Food Science (DISAFA), Plant Stress Laboratory, Turin University, Largo Paolo Braccini, Grugliasco (TO), Italy
| | - Andrea Schubert
- Department of Agriculture, Forestry and Food Science (DISAFA), Plant Stress Laboratory, Turin University, Largo Paolo Braccini, Grugliasco (TO), Italy
| | - Ivan Visentin
- Department of Agriculture, Forestry and Food Science (DISAFA), Plant Stress Laboratory, Turin University, Largo Paolo Braccini, Grugliasco (TO), Italy
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23
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Carlsson GH, Hasse D, Cardinale F, Prandi C, Andersson I. The elusive ligand complexes of the DWARF14 strigolactone receptor. J Exp Bot 2018; 69:2345-2354. [PMID: 29394369 PMCID: PMC5913616 DOI: 10.1093/jxb/ery036] [Citation(s) in RCA: 9] [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: 10/03/2017] [Accepted: 01/19/2018] [Indexed: 05/07/2023]
Abstract
Strigolactones, a group of terpenoid lactones, control many aspects of plant growth and development, but the active forms of these plant hormones and their mode of action at the molecular level are still unknown. The strigolactone protein receptor is unusual because it has been shown to cleave the hormone and supposedly forms a covalent bond with the cleaved hormone fragment. This interaction is suggested to induce a conformational change in the receptor that primes it for subsequent interaction with partners in the signalling pathway. Substantial efforts have been invested into describing the interaction of synthetic strigolactone analogues with the receptor, resulting in a number of crystal structures. This investigation combines a re-evaluation of models in the Protein Data Bank with a search for new conditions that may permit the capture of a receptor-ligand complex. While weak difference density is frequently observed in the binding cavity, possibly due to a low-occupancy compound, the models often contain features not supported by the X-ray data. Thus, at this stage, we do not believe that any detailed deductions about the nature, conformation, or binding mode of the ligand can be made with any confidence.
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Affiliation(s)
- Gunilla H Carlsson
- Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, Uppsala University, Husargatan, Uppsala, Sweden
| | - Dirk Hasse
- Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, Uppsala University, Husargatan, Uppsala, Sweden
| | - Francesca Cardinale
- Department of Agricultural, Forestry and Food Science, University of Turin, Largo Paolo Braccini, Grugliasco, Italy
| | - Cristina Prandi
- Department of Chemistry, University of Turin, via P. Giuria, Torino, Italy
| | - Inger Andersson
- Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, Uppsala University, Husargatan, Uppsala, Sweden
- Correspondence:
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Gonthier P, Visentin I, Valentino D, Tamietti G, Cardinale F. The Legitimate Name of a Fungal Plant Pathogen and the Ethics of Publication in the Era of Traceability. Sci Eng Ethics 2017; 23:631-633. [PMID: 27349909 DOI: 10.1007/s11948-016-9800-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 05/30/2016] [Accepted: 06/08/2016] [Indexed: 06/06/2023]
Abstract
When more scientists describe independently the same species under different valid Latin names, a case of synonymy occurs. In such a case, the international nomenclature rules stipulate that the first name to appear on a peer-reviewed publication has priority over the others. Based on a recent episode involving priority determination between two competing names of the same fungal plant pathogen, this letter wishes to open a discussion on the ethics of scientific publications and points out the necessity of a correct management of the information provided through personal communications, whose traceability would prevent their fraudulent or accidental manipulation.
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Affiliation(s)
- Paolo Gonthier
- Department of Agricultural, Forest and Food Sciences, University of Torino, Largo Paolo Braccini 2, 10095, Grugliasco, Italy.
| | - Ivan Visentin
- Department of Agricultural, Forest and Food Sciences, University of Torino, Largo Paolo Braccini 2, 10095, Grugliasco, Italy
| | - Danila Valentino
- Department of Agricultural, Forest and Food Sciences, University of Torino, Largo Paolo Braccini 2, 10095, Grugliasco, Italy
| | - Giacomo Tamietti
- Department of Exploitation and Protection of the Agricultural and Forestry Resources, University of Torino, via Leonardo da Vinci 44, 10095, Grugliasco, Italy
| | - Francesca Cardinale
- Department of Agricultural, Forest and Food Sciences, University of Torino, Largo Paolo Braccini 2, 10095, Grugliasco, Italy
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Scala V, Visentin I, Cardinale F. Evaluating Fumonisin Gene Expression in Fusarium verticillioides. Methods Mol Biol 2016; 1542:249-257. [PMID: 27924543 DOI: 10.1007/978-1-4939-6707-0_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: 02/21/2023]
Abstract
Transcript levels of key genes in a biosynthetic pathway are often taken as a proxy for metabolite production. This is the case of FUM1, encoding the first dedicated enzyme in the metabolic pathway leading to the production of the mycotoxins Fumonisins by fungal species belonging to the genus Fusarium. FUM1 expression can be quantified by different methods; here, we detail a protocol based on quantitative reverse transcriptase polymerase chain reaction (RT-qPCR), by which relative or absolute transcript abundance can be estimated in Fusaria grown in vitro or in planta. As very seldom commercial kits for RNA extraction and cDNA synthesis are optimized for fungal samples, we developed a protocol tailored for these organisms, which stands alone but can be also easily integrated with specific reagents and kits commercially available.
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Affiliation(s)
- Valeria Scala
- Department of Environmental Biology, University of Rome "Sapienza", Largo Cristina di Svezia, 24, 00165, Rome, Italy
| | - Ivan Visentin
- Department of Agricultural, Forest and Food Sciences, University of Turin, Largo Paolo Braccini, 2, 10095, Grugliasco (TO), Italy
| | - Francesca Cardinale
- Department of Agricultural, Forest and Food Sciences, University of Turin, Largo Paolo Braccini, 2, 10095, Grugliasco (TO), Italy.
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Visentin I, Vitali M, Ferrero M, Zhang Y, Ruyter-Spira C, Novák O, Strnad M, Lovisolo C, Schubert A, Cardinale F. Low levels of strigolactones in roots as a component of the systemic signal of drought stress in tomato. New Phytol 2016; 212:954-963. [PMID: 27716937 DOI: 10.1111/nph.14190] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [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: 05/19/2016] [Accepted: 08/04/2016] [Indexed: 05/03/2023]
Abstract
Strigolactones (SL) contribute to drought acclimatization in shoots, because SL-depleted plants are hypersensitive to drought due to stomatal hyposensitivity to abscisic acid (ABA). However, under drought, SL biosynthesis is repressed in roots, suggesting organ specificity in their metabolism and role. Because SL can be transported acropetally, such a drop may also affect shoots, as a systemic indication of stress. We investigated this hypothesis by analysing molecularly and physiologically wild-type (WT) tomato (Solanum lycopersicum) scions grafted onto SL-depleted rootstocks, compared with self-grafted WT and SL-depleted genotypes, during a drought time-course. Shoots receiving few SL from the roots behaved as if under mild stress even if irrigated. Their stomata were hypersensitive to ABA (likely via a localized enhancement of SL synthesis in shoots). Exogenous SL also enhanced stomata sensitivity to ABA. As the partial shift of SL synthesis from roots to shoots mimics what happens under drought, a reduction of root-produced SL might represent a systemic signal unlinked from shootward ABA translocation, and sufficient to prime the plant for better stress avoidance.
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Affiliation(s)
- Ivan Visentin
- Laboratory of Plant Physiology, DISAFA - Turin University, Grugliasco, 10095, TO, Italy
| | - Marco Vitali
- Laboratory of Plant Physiology, DISAFA - Turin University, Grugliasco, 10095, TO, Italy
| | - Manuela Ferrero
- Laboratory of Plant Physiology, DISAFA - Turin University, Grugliasco, 10095, TO, Italy
| | - Yanxia Zhang
- Laboratory of Plant Physiology, Wageningen University, 6708, PB Wageningen, the Netherlands
| | - Carolien Ruyter-Spira
- Laboratory of Plant Physiology, Wageningen University, 6708, PB Wageningen, the Netherlands
| | - Ondřej Novák
- Laboratory of Growth Regulators, Institute of Experimental Botany ASCR & Palacky University Olomouc, Olomouc, Czech Republic
| | - Miroslav Strnad
- Laboratory of Growth Regulators, Institute of Experimental Botany ASCR & Palacky University Olomouc, Olomouc, Czech Republic
| | - Claudio Lovisolo
- Laboratory of Plant Physiology, DISAFA - Turin University, Grugliasco, 10095, TO, Italy
| | - Andrea Schubert
- Laboratory of Plant Physiology, DISAFA - Turin University, Grugliasco, 10095, TO, Italy
| | - Francesca Cardinale
- Laboratory of Plant Physiology, DISAFA - Turin University, Grugliasco, 10095, TO, Italy
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Caffarelli C, Stringari G, Del Giudice MM, Crisafulli G, Cardinale F, Peroni D, Bernardini R. Prevention of Allergic Reactions in Anesthetized Patients. Int J Immunopathol Pharmacol 2016; 24:S91-9. [DOI: 10.1177/03946320110240s313] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Hypersensitivity reactions during perioperative period are increasing and may be potentially life-threatening. Therefore, major emphasis is given to prevention. We perform a review to examine which measures should be taken to prevent reactions to products used in elective and emergency surgery. Any patient with a history of previous anaphylaxis or severe reaction during anaesthesia should be referred to allergist for detection of the offending compound. However, the identification of the triggering agent is not always feasible because of the low accuracy of diagnostic tests. In these cases and when emergency surgery is required, it should be considered to replace all drugs administered before the onset of the reaction with alternatives. Furthermore, any cross-reacting agent and latex, especially in patients belonging to populations at-risk for latex allergy should be avoided. In susceptible patients, premedication with antihistamines and corticosteroids might reduce the severity of reaction to drugs or contrast material while it is unclear whether pre-treatment decreases incidence of anaphylactic reactions. There is no evidence that premedication prevents allergic reactions to latex. Overall, physicians should not rely on the efficacy of premedication.
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Affiliation(s)
- C. Caffarelli
- Pediatric Clinic, Department of Pediatrics, University of Parma, Parma, Italy
| | - G. Stringari
- Pediatric Clinic, Department of Pediatrics, University of Parma, Parma, Italy
| | | | - G. Crisafulli
- Allergy Unit, Department of Pediatrics, University of Messina, Messina, Italy
| | - F. Cardinale
- Department of Allergy and Pulmonology, Pediatric Hospital “Giovanni XXIII”, University of Bari, Bari, Italy
| | - D.G. Peroni
- Department of Pediatrics, University of Verona, Verona, Italy
| | - R. Bernardini
- Pediatric Unit, “San Giuseppe” Hospital, Empoli, Florence, Italy
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Giordano D, Provenzano S, Ferrandino A, Vitali M, Pagliarani C, Roman F, Cardinale F, Castellarin SD, Schubert A. Characterization of a multifunctional caffeoyl-CoA O-methyltransferase activated in grape berries upon drought stress. Plant Physiol Biochem 2016; 101:23-32. [PMID: 26851572 DOI: 10.1016/j.plaphy.2016.01.015] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [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: 09/21/2015] [Revised: 01/12/2016] [Accepted: 01/19/2016] [Indexed: 05/25/2023]
Abstract
Drought stress affects anthocyanin accumulation and modification in vegetative and reproductive plant tissues. Anthocyanins are the most abundant flavonoids in grape (Vitis vinifera L.) coloured berry genotypes and are essential markers of grape winemaking quality. They are mostly mono- and di-methylated, such modifications increase their stability and improve berry quality for winemaking. Anthocyanin methylation in grape berries is induced by drought stress. A few caffeoyl-CoA O-methyltransferases (CCoAOMTs) active on anthocyanins have been described in grape. However, no drought-activated O-methyltransferases have been described in grape berries yet. In this study, we characterized VvCCoAOMT, a grapevine gene known to induce methylation of CoA esters in cultured grape cells. Transcript accumulation of VvCCoAOMT was detected in berry skins, and increased during berry ripening on the plant, and in cultured berries treated with ABA, concomitantly with accumulation of methylated anthocyanins, suggesting that anthocyanins may be substrates of this enzyme. Contrary as previously observed in cell cultures, biotic stress (Botrytis cinerea inoculation) did not affect VvCCoAOMT gene expression in leaves or berries, while drought stress increased VvCCoAOMT transcript in berries. The recombinant VvCCoAOMT protein showed in vitro methylating activity on cyanidin 3-O-glucoside. We conclude that VvCCoAOMT is a multifunctional O-methyltransferase that may contribute to anthocyanin methylation activity in grape berries, in particular under drought stress conditions.
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Affiliation(s)
- Debora Giordano
- University of Turin, Dept. Agricultural, Forestry and Food Sciences, Largo Paolo Braccini 2, 10095 Grugliasco, TO, Italy
| | - Sofia Provenzano
- University of Turin, Dept. Agricultural, Forestry and Food Sciences, Largo Paolo Braccini 2, 10095 Grugliasco, TO, Italy
| | - Alessandra Ferrandino
- University of Turin, Dept. Agricultural, Forestry and Food Sciences, Largo Paolo Braccini 2, 10095 Grugliasco, TO, Italy
| | - Marco Vitali
- University of Turin, Dept. Agricultural, Forestry and Food Sciences, Largo Paolo Braccini 2, 10095 Grugliasco, TO, Italy
| | - Chiara Pagliarani
- University of Turin, Dept. Agricultural, Forestry and Food Sciences, Largo Paolo Braccini 2, 10095 Grugliasco, TO, Italy
| | - Federica Roman
- University of Turin, Dept. Agricultural, Forestry and Food Sciences, Largo Paolo Braccini 2, 10095 Grugliasco, TO, Italy
| | - Francesca Cardinale
- University of Turin, Dept. Agricultural, Forestry and Food Sciences, Largo Paolo Braccini 2, 10095 Grugliasco, TO, Italy
| | - Simone D Castellarin
- The University of British Columbia Wine Research Centre, 2205 East Mall, Vancouver, BC V6T 1Z4, Canada
| | - Andrea Schubert
- University of Turin, Dept. Agricultural, Forestry and Food Sciences, Largo Paolo Braccini 2, 10095 Grugliasco, TO, Italy.
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Caorsi R, Rice G, Volpi S, Cardinale F, Buoncompagni A, Crow Y, Martini A, Gattorno M, Picco P. Enlarging the clinical spectrum of SAVI syndrome. Pediatr Rheumatol Online J 2015. [PMCID: PMC4600054 DOI: 10.1186/1546-0096-13-s1-p70] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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30
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Job A, Hamery P, De Mezzo S, Fialaire JC, Roux A, Untereiner M, Cardinale F, Michel H, Klein C, Belcourt B. Rifle impulse noise affects middle-ear compliance in soldiers wearing protective earplugs. Int J Audiol 2015; 55:30-7. [DOI: 10.3109/14992027.2015.1070967] [Citation(s) in RCA: 8] [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] [Indexed: 12/15/2022]
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31
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Liu J, He H, Vitali M, Visentin I, Charnikhova T, Haider I, Schubert A, Ruyter-Spira C, Bouwmeester HJ, Lovisolo C, Cardinale F. Osmotic stress represses strigolactone biosynthesis in Lotus japonicus roots: exploring the interaction between strigolactones and ABA under abiotic stress. Planta 2015; 241:1435-51. [PMID: 25716094 DOI: 10.1007/s00425-015-2266-8] [Citation(s) in RCA: 104] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Accepted: 02/10/2015] [Indexed: 05/02/2023]
Abstract
Strigolactone changes and cross talk with ABA unveil a picture of root-specific hormonal dynamics under stress. Strigolactones (SLs) are carotenoid-derived hormones influencing diverse aspects of development and communication with (micro)organisms, and proposed as mediators of environmental stimuli in resource allocation processes; to contribute to adaptive adjustments, therefore, their pathway must be responsive to environmental cues. To investigate the relationship between SLs and abiotic stress in Lotus japonicus, we compared wild-type and SL-depleted plants, and studied SL metabolism in roots stressed osmotically and/or phosphate starved. SL-depleted plants showed increased stomatal conductance, both under normal and stress conditions, and impaired resistance to drought associated with slower stomatal closure in response to abscisic acid (ABA). This confirms that SLs contribute to drought resistance in species other than Arabidopsis. However, we also observed that osmotic stress rapidly and strongly decreased SL concentration in tissues and exudates of wild-type Lotus roots, by acting on the transcription of biosynthetic and transporter-encoding genes and independently of phosphate abundance. Pre-treatment with exogenous SLs inhibited the osmotic stress-induced ABA increase in wild-type roots and down-regulated the transcription of the ABA biosynthetic gene LjNCED2. We propose that a transcriptionally regulated, early SL decrease under osmotic stress is needed (but not sufficient) to allow the physiological increase of ABA in roots. This work shows that SL metabolism and effects on ABA are seemingly opposite in roots and shoots under stress.
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Affiliation(s)
- Junwei Liu
- Department of Agricultural, Forest and Food Sciences (DISAFA), University of Turin, Largo P. Braccini 2, 10095, Grugliasco, TO, Italy,
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Caorsi R, Rice G, Cardinale F, Volpi S, Buoncompagni A, Crow Y, Martini A, Gattorno M, Picco P. AB1014 Enlarging the Clinical Spectrum of Sting-Associated Vasculopathy with Onset in Infancy (SAVI). Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.6115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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33
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Scala V, Giorni P, Cirlini M, Ludovici M, Visentin I, Cardinale F, Fabbri AA, Fanelli C, Reverberi M, Battilani P, Galaverna G, Dall'Asta C. LDS1-produced oxylipins are negative regulators of growth, conidiation and fumonisin synthesis in the fungal maize pathogen Fusarium verticillioides. Front Microbiol 2014; 5:669. [PMID: 25566199 PMCID: PMC4263177 DOI: 10.3389/fmicb.2014.00669] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [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: 09/05/2014] [Accepted: 11/18/2014] [Indexed: 11/13/2022] Open
Abstract
Oxylipins are fatty acid-derived signaling compounds produced by all eukaryotes so far investigated; in mycotoxigenic fungi, they modulate toxin production and interactions with the host plants. Among the many enzymes responsible for oxylipin generation, Linoleate Diol Synthase 1 (LDS1) produces mainly 8-hydroperoxyoctadecenoic acid and subsequently different di-hydroxyoctadecenoic acids. In this study, we inactivated a copy of the putative LDS1 ortholog (acc. N. FVEG_09294.3) of Fusarium verticillioides, with the aim to investigate its influence on the oxylipin profile of the fungus, on its development, secondary metabolism and virulence. LC-MS/MS oxylipin profiling carried out on the selected mutant strain revealed significant quali-quantitative differences for several oxylipins when compared to the WT strain. The Fvlds1-deleted mutant grew better, produced more conidia, synthesized more fumonisins and infected maize cobs faster than the WT strain. We hypothesize that oxylipins may act as regulators of gene expression in the toxigenic plant pathogen F. verticillioides, in turn causing notable changes in its phenotype. These changes could relate to the ability of oxylipins to re-shape the transcriptional profile of F. verticillioides by inducing chromatin modifications and exerting a direct control on the transcription of secondary metabolism in fungi.
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Affiliation(s)
- Valeria Scala
- Department of Environmental Biology, University of Rome "Sapienza" Rome, Italy
| | - Paola Giorni
- Istituto di Entomologia e Patologia Vegetale, Università Cattolica del Sacro Cuore Piacenza, Italy
| | - Martina Cirlini
- Food Chemistry and Natural Substances Unit, Department of Organic and Industrial Chemistry, University of Parma Parma, Italy
| | - Matteo Ludovici
- Department of Environmental Biology, University of Rome "Sapienza" Rome, Italy
| | - Ivan Visentin
- Department of Agricultural, Food and Forestry Science, University of Turin Torino, Italy
| | - Francesca Cardinale
- Department of Agricultural, Food and Forestry Science, University of Turin Torino, Italy
| | - Anna A Fabbri
- Department of Environmental Biology, University of Rome "Sapienza" Rome, Italy
| | - Corrado Fanelli
- Department of Environmental Biology, University of Rome "Sapienza" Rome, Italy
| | - Massimo Reverberi
- Department of Environmental Biology, University of Rome "Sapienza" Rome, Italy
| | - Paola Battilani
- Istituto di Entomologia e Patologia Vegetale, Università Cattolica del Sacro Cuore Piacenza, Italy
| | - Gianni Galaverna
- Food Chemistry and Natural Substances Unit, Department of Organic and Industrial Chemistry, University of Parma Parma, Italy
| | - Chiara Dall'Asta
- Food Chemistry and Natural Substances Unit, Department of Organic and Industrial Chemistry, University of Parma Parma, Italy
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De Momi E, Caborni C, Cardinale F, Casaceli G, Castana L, Cossu M, Mai R, Gozzo F, Francione S, Tassi L, Lo Russo G, Antiga L, Ferrigno G. Multi-trajectories automatic planner for StereoElectroEncephaloGraphy (SEEG). Int J Comput Assist Radiol Surg 2014; 9:1087-97. [PMID: 24748210 DOI: 10.1007/s11548-014-1004-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Accepted: 04/02/2014] [Indexed: 10/25/2022]
Abstract
PURPOSE StereoElectroEncephaloGraphy (SEEG) is done to identify the epileptogenic zone of the brain using several multi-lead electrodes whose positions in the brain are pre-operatively defined. Intracranial hemorrhages due to disruption of blood vessels can cause major complications of this procedure ([Formula: see text]1%). In order to increase the intervention safety, we developed and tested planning tools to assist neurosurgeons in choosing the best trajectory configuration. METHODS An automated planning method was developed that maximizes the distance of the electrode from the vessels and avoids the sulci as entry points. The angle of the guiding screws is optimized to reduce positioning error. The planner was quantitatively and qualitatively compared with manually computed trajectories on 26 electrodes planned for three patients undergoing SEEG by four neurosurgeons. Quantitative comparison was performed computing for each trajectory using (a) the Euclidean distance from the closest vessel and (b) the incidence angle. RESULTS Quantitative evaluation shows that automatic planned trajectories are safer in terms of distance from the closest vessel with respect to manually planned trajectories. Qualitative evaluation performed by four neurosurgeons showed that the automatically computed trajectories would have been preferred to manually computed ones in 30% of the cases and were judged good or acceptable in about 86% of the cases. A significant reduction in time required for planning was observed with the automated system (approximately 1/10). CONCLUSION The automatic SEEG electrode planner satisfied the essential clinical requirements, by providing safe trajectories in an efficient timeframe.
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Affiliation(s)
- E De Momi
- Department of Electronics, Information and Bioengineering (DEIB), Politecnico di Milano, Milan, Italy.
| | - C Caborni
- Department of Electronics, Information and Bioengineering (DEIB), Politecnico di Milano, Milan, Italy
| | - F Cardinale
- "Claudio Munari" Centre for Epilepsy and Parkinson Surgery Ospedale Niguarda Ca' Granda, Milan, Italy
| | - G Casaceli
- "Claudio Munari" Centre for Epilepsy and Parkinson Surgery Ospedale Niguarda Ca' Granda, Milan, Italy
| | - L Castana
- "Claudio Munari" Centre for Epilepsy and Parkinson Surgery Ospedale Niguarda Ca' Granda, Milan, Italy
| | - M Cossu
- "Claudio Munari" Centre for Epilepsy and Parkinson Surgery Ospedale Niguarda Ca' Granda, Milan, Italy
| | - R Mai
- "Claudio Munari" Centre for Epilepsy and Parkinson Surgery Ospedale Niguarda Ca' Granda, Milan, Italy
| | - F Gozzo
- "Claudio Munari" Centre for Epilepsy and Parkinson Surgery Ospedale Niguarda Ca' Granda, Milan, Italy
| | - S Francione
- "Claudio Munari" Centre for Epilepsy and Parkinson Surgery Ospedale Niguarda Ca' Granda, Milan, Italy
| | - L Tassi
- "Claudio Munari" Centre for Epilepsy and Parkinson Surgery Ospedale Niguarda Ca' Granda, Milan, Italy
| | - G Lo Russo
- "Claudio Munari" Centre for Epilepsy and Parkinson Surgery Ospedale Niguarda Ca' Granda, Milan, Italy
| | | | - G Ferrigno
- Department of Electronics, Information and Bioengineering (DEIB), Politecnico di Milano, Milan, Italy
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Liu J, Novero M, Charnikhova T, Ferrandino A, Schubert A, Ruyter-Spira C, Bonfante P, Lovisolo C, Bouwmeester HJ, Cardinale F. Carotenoid cleavage dioxygenase 7 modulates plant growth, reproduction, senescence, and determinate nodulation in the model legume Lotus japonicus. J Exp Bot 2013; 64:1967-81. [PMID: 23567864 PMCID: PMC3638823 DOI: 10.1093/jxb/ert056] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Strigolactones (SLs) are newly identified hormones that regulate multiple aspects of plant development, infection by parasitic weeds, and mutualistic symbiosis in the roots. In this study, the role of SLs was studied for the first time in the model plant Lotus japonicus using transgenic lines silenced for carotenoid cleavage dioxygenase 7 (LjCCD7), the orthologue of Arabidopsis More Axillary Growth 3. Transgenic LjCCD7-silenced plants displayed reduced height due to shorter internodes, and more branched shoots and roots than the controls, and an increase in total plant biomass, while their root:shoot ratio remained unchanged. Moreover, these lines had longer primary roots, delayed senescence, and reduced flower/pod numbers from the third round of flower and pod setting onwards. Only a mild reduction in determinate nodule numbers and hardly any impact on the colonization by arbuscular mycorrhizal fungi were observed. The results show that the impairment of CCD7 activity in L. japonicus leads to a phenotype linked to SL functions, but with specific features possibly due to the peculiar developmental pattern of this plant species. It is believed that the data also link determinate nodulation, plant reproduction, and senescence to CCD7 function for the first time.
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Affiliation(s)
- Junwei Liu
- Department of Agriculture, Forestry and Food Sciences, University of Turin, via Leonardo da Vinci 44, 10095 Grugliasco (TO), Italy
| | - Mara Novero
- Department of Life Sciences and Systems Biology, University of Turin, viale Mattioli 25, 10025 Turin, Italy
| | - Tatsiana Charnikhova
- Laboratory of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, NL-6708 PB Wageningen, The Netherlands
| | - Alessandra Ferrandino
- Department of Agriculture, Forestry and Food Sciences, University of Turin, via Leonardo da Vinci 44, 10095 Grugliasco (TO), Italy
| | - Andrea Schubert
- Department of Agriculture, Forestry and Food Sciences, University of Turin, via Leonardo da Vinci 44, 10095 Grugliasco (TO), Italy
| | - Carolien Ruyter-Spira
- Laboratory of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, NL-6708 PB Wageningen, The Netherlands
| | - Paola Bonfante
- Department of Life Sciences and Systems Biology, University of Turin, viale Mattioli 25, 10025 Turin, Italy
| | - Claudio Lovisolo
- Department of Agriculture, Forestry and Food Sciences, University of Turin, via Leonardo da Vinci 44, 10095 Grugliasco (TO), Italy
| | - Harro J. Bouwmeester
- Laboratory of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, NL-6708 PB Wageningen, The Netherlands
| | - Francesca Cardinale
- Department of Agriculture, Forestry and Food Sciences, University of Turin, via Leonardo da Vinci 44, 10095 Grugliasco (TO), Italy
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Montis V, Pasquali M, Visentin I, Karlovsky P, Cardinale F. Identification of a cis-acting factor modulating the transcription of FUM1, a key fumonisin-biosynthetic gene in the fungal maize pathogen Fusarium verticillioides. Fungal Genet Biol 2012; 51:42-9. [PMID: 23219667 DOI: 10.1016/j.fgb.2012.11.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2012] [Revised: 10/26/2012] [Accepted: 11/26/2012] [Indexed: 10/27/2022]
Abstract
Fumonisins, toxic secondary metabolites produced by some Fusarium spp. and Aspergillus niger, have strong agro-economic and health impacts. The genes needed for their biosynthesis, named FUM, are clustered and co-expressed in fumonisin producers. In eukaryotes, coordination of transcription can be attained through shared transcription factors, whose specificity relies on the recognition of cis-regulatory elements on target promoters. A bioinformatic analysis on FUM promoters in the maize pathogens Fusarium verticillioides and Aspergillus niger identified a degenerated, over-represented motif potentially involved in the cis-regulation of FUM genes, and of fumonisin biosynthesis. The same motif was not found in various FUM homologues of fungi that do not produce fumonisins. Comparison of the transcriptional strength of the intact FUM1 promoter with a synthetic version, where the motif had been mutated, was carried out in vivo and in planta for F. verticillioides. The results showed that the motif is important for efficient transcription of the FUM1 gene.
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Affiliation(s)
- V Montis
- Dipartimento di Scienze Agrarie, Forestali e Alimentari, Università degli Studi di Torino, Via Leonardo da Vinci, 44, 10095 Grugliasco, Italy.
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Gaiji N, Cardinale F, Prandi C, Bonfante P, Ranghino G. The computational-based structure of Dwarf14 provides evidence for its role as potential strigolactone receptor in plants. BMC Res Notes 2012; 5:307. [PMID: 22713366 PMCID: PMC3436726 DOI: 10.1186/1756-0500-5-307] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [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: 12/06/2011] [Accepted: 06/19/2012] [Indexed: 11/28/2022] Open
Abstract
Background Strigolactones (SLs) are recently identified plant hormones modulating root and shoot branching. Besides their endogenous role within the producing organism, SLs are also key molecules in the communication of plants with arbuscular mycorrhizal (AM) fungi and parasitic weeds. In fact SLs are exuded into the rhizosphere where they act as a host-derived signal, stimulating the germination of the seeds of parasitic plants which would not survive in the absence of a host root to colonize. Similarly, their perception by AM fungi causes extensive hyphal branching; this is a prerequisite for effective root colonization, since it increases the number of potential contact points with the host surface. In spite of the crucial and multifaceted biological role of SLs, there is no information on the receptor(s) which bind(s) such active molecules, neither in the producing plants, or in parasitic weeds or AM fungi. Results In this work, we applied homology modelling techniques to investigate the structure of the protein encoded by the gene Dwarf14, which was first identified in rice as conferring SLs insensitivity when mutated. The best sequence identity was with bacterial RsbQ. Both proteins belong to the superfamily of alpha/beta-fold hydrolases, some members of which play a role in the metabolism or signalling of plant hormones. The Dwarf14 (D14) structure was refined by means of molecular dynamics simulations. In order to support the hypothesis that D14 could be an endogenous SLs receptor, we performed docking experiments with a natural ligand. Conclusions It is suggested that D14 interacts with and thereby may act as a receptor for SLs in plants. This hypothesis offers a starting point to experimentally study the mechanism of its activity in vivo by means of structural, molecular and genetic approaches. Lastly, knowledge of the putative receptor structure will boost the research on analogues of the natural substrates as required for agricultural applications.
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Pajno GB, Crisafulli G, Caminiti L, Marseglia GL, Cardinale F, Paravati F, Caffarelli C. Perioperative allergy: therapy. Int J Immunopathol Pharmacol 2012; 24:S101-4. [PMID: 22014932 DOI: 10.1177/03946320110240s314] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Perioperative allergic reactions manifest in various ways. The majority of systemic reactions occur during anesthesia within minutes of intravenous induction; however, agents which are administered via other routes may cause reactions after more than 15 minutes. Anaphylaxis during anesthesia may present in many different ways and the signs and symptoms, which do not vary from those of anaphylactic reactions in general, may be masked by hypovolemia, light, deep anesthesia or extensive regional blockade. Recommendations for treatment are based on available evidence in the literature. A treatment algorithm is suggested, with emphasis on the incremental titration of adrenaline and fluid therapy as first-line treatment. Increased focus on this subject will hopefully lead to prompt diagnosis and rapid, correct treatment.
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Affiliation(s)
- G B Pajno
- Department of Pediatrics, University of Messina, Messina, Italy
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Cardinale F, Mastrototaro MF, Cappiello A, Caffarelli C, Caimmi S, Barberi S, Bernardini R. Immunological modifications induced from products used during the perioperative period. Int J Immunopathol Pharmacol 2012; 24:S13-20. [PMID: 22014921 DOI: 10.1177/03946320110240s303] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Anesthetics and other products used during the perioperative period may influence immune function not only merely by reducing the HPA-axis stress response but also by directly modulating innate and adaptive immune responses. Most of the literature on the immune effects of anesthetics has been derived from in vitro or animal studies, due to the number of confounding variables in real life surgical settings. These immunosuppressive effects might not normally have clinical consequences for an immune-competent patient, but may act as important modifiers in postoperative morbidity and mortality. Furthermore, some inhibitory effects on neutrophil functions may provide a therapeutically beneficial effect under specific surgical clinical conditions, such as ischemia-reperfusion injury.
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Affiliation(s)
- F Cardinale
- Department of Allergy and Pulmonology, Pediatric Hospital Giovanni XXIII, University of Bari, Bari, Italy.
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Caimmi S, Caimmi D, Cardinale F, Indinnimeo L, Crisafulli G, Peroni DG, Marseglia GL. Perioperative allergy: uncommon agents. Int J Immunopathol Pharmacol 2012; 24:S61-8. [PMID: 22014927 DOI: 10.1177/03946320110240s309] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Anesthesia may often be considered as a high-risk procedure and anaphylaxis remains a major cause of concern for anesthetists who routinely administer many potentially allergenic agents. Neuromuscular blocking agents, latex and antibiotics are the substances involved in most of the reported reactions. Besides these three agents, a wide variety of substances may cause an anaphylactic reaction during anesthesia. Basically all the administered drugs or substances may be potential causes of anaphylaxis. Among them, those reported the most in literature include hypnotics, opioids, local anesthetics, colloids, dye, Non-Steroidal Anti-Inflammatory Drugs (NSAIDs), Iodinated Contrast Media (ICM), antiseptics, aprotinin, ethylene oxyde and formaldehyde, and protamine and heparins. No premedication can effectively prevent an allergic reaction and a systematic preoperative screening is not justified for all patients; nevertheless, an allergy specialist should evaluate those patients with a history of anesthesia-related allergy. Patients must be fully informed of investigation results, and advised to provide a detailed report prior to future anesthesia.
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Affiliation(s)
- S Caimmi
- Department of Pediatrics, University of Pavia, Italy.
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Cardinale F, Chinellato I, Caimmi S, Peroni DG, Franceschini F, Miraglia Del Giudice M, Bernardini R. Perioperative period: immunological modifications. Int J Immunopathol Pharmacol 2012; 24:S3-12. [PMID: 22014920 DOI: 10.1177/03946320110240s302] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Surgical stress induces complex modifications in the hemodynamic, metabolic, neuro-hormonal and immune response of the individual. The magnitude of these alterations depends on preoperative events leading to surgery, the severity of surgical trauma, and also on post-operative/post-traumatic complications (multiple hit hypothesis). As in other conditions of tissue damage, surgery trauma is followed by an immune-inflammatory response, initiated at the site of injury by the innate immune system, followed by a compensatory anti-inflammatory (or immunosuppressive) response (CARS), involving mainly cells of the adaptive immune system, which predispose the host to septic complications. The up-regulated inflammatory response, together with a profound impairment of macrophage and cell-mediated immunity, appear to be the cause for patients' increased susceptibility in developing subsequent sepsis after major surgery.
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Affiliation(s)
- F Cardinale
- Department of Allergy and Pulmonology, Pediatric Hospital Giovanni XXIII, University of Bari, Bari, Italy.
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Franceschini F, De Benedictis FM, Peroni DG, Marseglia GL, Cardinale F, Caffarelli C, Bernardini R. Clinical modifications induced by drugs during the perioperative period. Int J Immunopathol Pharmacol 2011; 24:S75-82. [PMID: 22014929 DOI: 10.1177/03946320110240s311] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Total intravenous anesthesia (TIVA) can be defined as a technique in which general anesthesia is induced and maintained using only intravenous agents. TIVA has become more popular in recent times because of the pharmacokinetic and pharmacodynamic properties of propofol, the availability of short acting synthetic opioids, and the development of delivery systems. Significant differences in anatomy and physiology in adults and children and special needs of younger patients have important consequences on many aspects of anesthesia. Airway and respiratory complications are the most common causes of morbidity during general anesthesia in children. Knowledge of the functional anatomy of airways in children forms the basis in the understanding of the pathological conditions that may occur.
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Cardinale F, Chironna M, Dumke R, Binetti A, Daleno C, Sallustio A, Valzano A, Esposito S. Macrolide-resistant Mycoplasma pneumoniae in paediatric pneumonia. Eur Respir J 2011; 37:1522-4. [PMID: 21632830 DOI: 10.1183/09031936.00172510] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Francia D, Chiltz A, Lo Schiavo F, Pugin A, Bonfante P, Cardinale F. AM fungal exudates activate MAP kinases in plant cells in dependence from cytosolic Ca(2+) increase. Plant Physiol Biochem 2011; 49:963-9. [PMID: 21561784 DOI: 10.1016/j.plaphy.2011.04.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2011] [Accepted: 04/18/2011] [Indexed: 05/30/2023]
Abstract
The molecular dialogue occurring prior to direct contact between the fungal and plant partners of arbuscular-mycorrhizal (AM) symbioses begins with the release of fungal elicitors, so far only partially identified chemically, which can activate specific signaling pathways in the host plant. We show here that the activation of MAPK is also induced by exudates of germinating spores of Gigaspora margarita in cultured cells of the non-leguminous species tobacco (Nicotiana tabacum), as well as in those of the model legume Lotus japonicus. MAPK activity peaked about 15 min after the exposure of the host cells to the fungal exudates (FE). FE were also responsible for a rapid and transient increase in free cytosolic Ca(2+) in Nicotiana plumbaginifolia and tobacco cells, and pre-treatment with a Ca(2+)-channel blocker (La(3+)) showed that in these cells, MAPK activation was dependent on the cytosolic Ca(2+) increase. A partial dependence of MAPK activity on the common Sym pathway could be demonstrated for a cell line of L. japonicus defective for LjSym4 and hence unable to establish an AM symbiosis. Our results show that MAPK activation is triggered by an FE-induced cytosolic Ca(2+) transient, and that a Sym genetic determinant acts to modulate the intensity and duration of this activity.
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Affiliation(s)
- Doriana Francia
- DiVaPRA, Patologia Vegetale, Università degli Studi di Torino, Via L. da Vinci, 44, 10095 Grugliasco (TO), Italy
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Abstract
The prevalence of latex allergy varies greatly depending on the population studied and the methods used to detect sensitization. Subjects considered to be at high risk for latex allergy are rubber industry workers, children with spina bifida and urological abnormalities, children undergoing multiple surgical procedures and with urinary catheterization, health care workers and people with food allergy (latex fruit syndrome). In this paper we report a review of latex proteins, the symptoms of latex allergy, diagnosis and management in subjects with latex allergy.
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Affiliation(s)
- R. Bernardini
- Pediatric Unit, “San Giuseppe” Hospital, Empoli, Florence, Italy
| | - P. Catania
- Pediatric Unit, “San Giuseppe” Hospital, Empoli, Florence, Italy
| | - C. Caffarelli
- Pediatric Clinic, Department of Pediatrics, University of Parma, Parma, Italy
| | - F. Cardinale
- Department of Allergy and Pulmonology, Pediatric Hospital “Giovanni XXIII”, University of Bari, Bari, Italy
| | - F. Franceschini
- Pediatric Unit, “Ospedali Riuniti”, University Hospital, Ancona, Italy
| | - U. Pelosi
- Children and Mother Care Department, Pediatrics Unit, “Santa Barbara” Hospital, Iglesias, Italy
| | - D.G. Peroni
- Department of Pediatrics, University of Verona, Verona, Italy
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Peroni D, Sansotta N, Bernardini R, Cardinale F, Paravati F, Franceschini F, Boner A. Perioperative Allergy: Clinical Manifestations. Int J Immunopathol Pharmacol 2011; 24:S69-74. [DOI: 10.1177/03946320110240s310] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Adverse drug reactions or side effects are usually expected, dose dependent, and occur at therapeutic doses. Anaphylactic and anaphylactoid reactions are unexpected and dose independent and can occur at the first exposure to drugs used during anesthesia. Perioperative anaphylaxis is a severe and rapid clinical condition that can be lethal even in previously healthy patients. The initial diagnosis of anaphylaxis is presumptive. A precise identification of the drug responsible for the adverse reaction is more difficult to establish in the case of anaphylactoid reaction because the adverse reaction could result from additive side effects of different drugs injected simultaneously. The timing of the reaction in relation to events, e.g. induction, start of surgery, administration of other drugs, i.v. fluids, is essential for the diagnosis. Generally, reactions are predominant in the induction and recovery phases, and manifested mainly as cutaneous symptoms. Reactions to drugs coincide with the phases when they are administered. Reactions to antibiotics are more frequent in the induction phase, to neuromuscular agents in the initiation and maintenance phases and to non-steroidal anti-inflammatory agents in the recovery phase. The differential diagnosis of any adverse reaction during or following anesthesia should include the possibility of anaphylaxis.
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Affiliation(s)
- D.G. Peroni
- Department of Pediatrics, University of Verona, Verona, Italy
| | - N. Sansotta
- Department of Pediatrics, University of Verona, Verona, Italy
| | - R. Bernardini
- Pediatric Unit, “San Giuseppe” Hospital, Empoli, Florence, Italy
| | - F. Cardinale
- Department of Allergy and Pulmonology, Pediatric Hospital “Giovanni XXIII”, University of Bari, Bari, Italy
| | - F. Paravati
- Pediatric Unit, “San Giovanni di Dio” Hospital, Crotone, Italy
| | - F. Franceschini
- Pediatric Unit, “Ospedali Riuniti”, University Hospital, Ancona, Italy
| | - A.L. Boner
- Department of Pediatrics, University of Verona, Verona, Italy
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Chironna M, Sallustio A, Esposito S, Perulli M, Chinellato I, Di Bari C, Quarto M, Cardinale F. Emergence of macrolide-resistant strains during an outbreak of Mycoplasma pneumoniae infections in children. J Antimicrob Chemother 2011; 66:734-7. [PMID: 21393214 DOI: 10.1093/jac/dkr003] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVES Mycoplasma pneumoniae is a frequent cause of human lower respiratory tract infections (LRTIs) for which macrolides are the treatment of choice. The aim of this study was to determine the rate of macrolide resistance and to subtype M. pneumoniae strains in Italy. PATIENTS AND METHODS During an outbreak of M. pneumoniae infections in southern Italy in 2010, 48 clinical specimens from 43 paediatric patients hospitalized for LRTIs were analysed for macrolide resistance. The mutations associated with resistance (A2063G and A2064G) and M. pneumoniae subtypes were detected by sequencing the targeted domain V region of the 23S rRNA gene and a region in the MPN528a gene, respectively. RESULTS Macrolide resistance genotypes were detected in 11 (26%) of the 43 M. pneumoniae-positive children. The A2063G mutation was identified in seven patients and the A2064G mutation was identified in the remaining four. Upon admission, the isolates from three patients showed a susceptible genotype but subsequently acquired the A2063G mutation. Genotyping revealed M. pneumoniae subtype 1 in 33 of 40 sequenced strains and subtype 2 in the remaining 7. There was no association between macrolide resistance or susceptibility and the M. pneumoniae subtypes. CONCLUSIONS This is the first report of macrolide resistance among M. pneumoniae strains in Italy. Our findings indicate an unexpected high prevalence of macrolide resistance genotypes in children, and so macrolide resistance should be carefully considered in patients who do not respond appropriately to antibiotic treatment. The epidemiological monitoring of macrolide resistance has become necessary in Italy and in the rest of Europe.
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Affiliation(s)
- M Chironna
- Department of Biomedical Sciences and Human Oncology-Hygiene Section, University of Bari, and Department of Pulmonology, Giovanni XXIII Pediatric Hospital, Piazza G. Cesare 11, 70124 Bari, Italy.
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Chinellato I, Piazza M, Sandri M, Peroni DG, Cardinale F, Piacentini GL, Boner AL. Serum vitamin D levels and exercise-induced bronchoconstriction in children with asthma. Eur Respir J 2010; 37:1366-70. [PMID: 21071468 DOI: 10.1183/09031936.00044710] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Epidemiological studies have established a relationship between low levels of serum vitamin D and reduced lung function in healthy adults, and asthma onset and severity in children. However, no study has examined the relationship between vitamin D levels and exercise-induced bronchoconstriction in asthmatic children. We evaluated the relationship between 25-hydroxyvitamin D concentrations and baseline forced vital capacity (FVC), forced expiratory volume in 1 s (FEV1) and change in FEV1 (ΔFEV1) after a standardised exercise challenge in 45 children with intermittent asthma. Only 11% of the children had desirable serum vitamin D levels (at least 30-40 ng·mL(-1)). A positive correlation was found between serum 25-hydroxyvitamin D and both FVC (r=0.34; p=0.037) and FEV1 (r=0.32; p=0.037). Subjects with a positive response to the exercise challenge (ΔFEV1≥10%) presented lower serum levels of 25-hydroxyvitamin D than children with a negative challenge (mean±sd 16.2±5.2 versus 23.4±7.0 ng·mL(-1), respectively; p=0.001). Our results indicate that hypovitaminosis D is frequent in asthmatic children who live in a Mediterranean country. In those children, lower levels of vitamin D are associated with reduced lung function and increased reactivity to exercise.
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Affiliation(s)
- I Chinellato
- Department of Paediatrics, University of Verona, Policlinico GB Rossi, Piazzale L. Scuro, 37134 Verona, Italy
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Wong R, James J, Sagar S, Wyatt G, Nguyen-Tan P, Singh A, Lukaszczyk B, Cardinale F, Yeh A, Berk L. RTOG 0537 Phase II/III Study Comparing Acupuncture-like Transcutaneous Electrical Nerve Stimulation (ALTENS) versus Pilocarpine in Treating Early Radiation-Induced Xerostomia (RIX): Phase II Results. Int J Radiat Oncol Biol Phys 2010. [DOI: 10.1016/j.ijrobp.2010.07.217] [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: 12/01/2022]
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Affiliation(s)
- F Cardinale
- Department of Paediatrics S. Maggiore, University of Bari, Policlinico, Piazza G. Cesare 11, Bari, Italy.
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