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Colomeu TC, Figueiredo D, Cazarin CBB, Schumacher NSG, Maróstica MR, Meletti LMM, Zollner RL. Antioxidant and anti-diabetic potential of Passiflora alata Curtis aqueous leaves extract in type 1 diabetes mellitus (NOD-mice). Int Immunopharmacol 2013; 18:106-15. [PMID: 24269180 DOI: 10.1016/j.intimp.2013.11.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [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: 07/13/2013] [Revised: 10/23/2013] [Accepted: 11/01/2013] [Indexed: 10/26/2022]
Abstract
Leaves of Passiflora alata Curtis were characterized for their antioxidant capacity. Antioxidant analyses of DPPH, FRAP, ABTS, ORAC and phenolic compounds were made in three different extracts: aqueous, methanol/acetone and ethanol. Aqueous extract was found to be the best solvent for recovery of phenolic compounds and antioxidant activity, when compared with methanol/acetone and ethanol. To study the anti-inflammatory properties of this extract in experimental type 1 diabetes, NOD mice were divided into two groups: the P. alata group, treated with aqueous extract of P. alata Curtis, and a non-treated control group, followed by diabetes expression analysis. The consumption of aqueous extract and water ad libitum lasted 28 weeks. The treated-group presented a decrease in diabetes incidence, a low quantity of infiltrative cells in pancreatic islets and increased glutathione in the kidney and liver (p<0.05), when compared with the diabetic and non-diabetic control-groups. In conclusion, our results suggest that the consumption of aqueous extract of P. alata may be considered a good source of natural antioxidants and compounds found in its composition can act as anti-inflammatory agents, helping in the control of diabetes.
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Affiliation(s)
- T C Colomeu
- Department of Internal Medicine, Faculty of Medical Sciences, University of Campinas - Rua Tessália Vieira de Camargo, 126, Cidade Universitária Zeferino Vaz, 13083-887 Campinas, SP, Brazil.
| | - D Figueiredo
- Department of Internal Medicine, Faculty of Medical Sciences, University of Campinas - Rua Tessália Vieira de Camargo, 126, Cidade Universitária Zeferino Vaz, 13083-887 Campinas, SP, Brazil.
| | - C B B Cazarin
- Department of Food and Nutrition, School of Food Engineering, University of Campinas - Rua Monteiro Lobato, 80, Cidade Universitária Zeferino Vaz, 13083-862 Campinas, SP, Brazil.
| | - N S G Schumacher
- Department of Internal Medicine, Faculty of Medical Sciences, University of Campinas - Rua Tessália Vieira de Camargo, 126, Cidade Universitária Zeferino Vaz, 13083-887 Campinas, SP, Brazil.
| | - M R Maróstica
- Department of Food and Nutrition, School of Food Engineering, University of Campinas - Rua Monteiro Lobato, 80, Cidade Universitária Zeferino Vaz, 13083-862 Campinas, SP, Brazil.
| | - L M M Meletti
- Agronomic Institute of Campinas, Av. Theodureto de Almeida Camargo, 1500, Vila Nova, 13012-970 Campinas, SP, Brazil.
| | - R L Zollner
- Department of Internal Medicine, Faculty of Medical Sciences, University of Campinas - Rua Tessália Vieira de Camargo, 126, Cidade Universitária Zeferino Vaz, 13083-887 Campinas, SP, Brazil.
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Monteiro-Hara ACBA, Jadão AS, Mendes BMJ, Rezende JAM, Trevisan F, Mello APOA, Vieira MLC, Meletti LMM, De S Piedade SM. Genetic Transformation of Passionflower and Evaluation of R 1 and R 2 Generations for Resistance to Cowpea aphid borne mosaic virus. Plant Dis 2011; 95:1021-1025. [PMID: 30732105 DOI: 10.1094/pdis-12-10-0873] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We report on the production and evaluation of passionflower transgenic lines for resistance to Cowpea aphid borne mosaic virus (CABMV). Genetic transformation was done using Agrobacterium tumefaciens and transgene integration was confirmed by Southern blot analyses, resulting in nine transgenic lines for 'IAC 275' and three for 'IAC 277'. Transgenic lines were clonally propagated and evaluated for resistance to CABMV. After the third inoculation, under higher inoculum pressure, only propagated plants of the transgenic line T16 remained asymptomatic, indicating a high resistance to infection with CABMV. This transgenic line was self-pollinated and the R1 generation was evaluated together with the R1 generation of another resistant transgenic line (T2) identified previously. Plants were inoculated with CABMV by means of viruliferous Myzus nicotianae. All 524 T2R1 plants became infected, whereas 13 of 279 T16R1 remained asymptomatic after four successive inoculations. A T16R2 generation was obtained and plants were inoculated with CABMV mechanically or by aphids. After successive inoculations, 118 of 258 plants were symptomless, suggesting that the resistance to CABMV was maintained in the plant genome as the homozygous condition was achieved. Five selected resistant T16R2 plants which contained the capsid protein gene are being crossed for further analyses.
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Affiliation(s)
- Alessandra C B A Monteiro-Hara
- Laboratório de Biotecnologia Vegetal, Centro de Energia Nuclear na Agricultura, Universidade de São Paulo (CENA/USP), 13400-970 Piracicaba, SP, Brazil
| | - Adriana S Jadão
- Departamento de Fitopatologia e Nematologia, Escola Superior de Agricultura 'Luiz de Queiroz', Universidade de São Paulo (ESALQ/USP), 13418-900 Piracicaba, SP, Brazil
| | | | | | | | | | | | - L M M Meletti
- Centro de Fruticultura, Instituto Agronômico, 13020-902 Campinas, SP, Brazil
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Trevisan F, Mendes BMJ, Maciel SC, Vieira MLC, Meletti LMM, Rezende JAM. Resistance to Passion fruit woodiness virus in Transgenic Passionflower Expressing the Virus Coat Protein Gene. Plant Dis 2006; 90:1026-1030. [PMID: 30781294 DOI: 10.1094/pd-90-1026] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We report the use of the coat protein (CP) gene from Passion fruit woodiness virus (PWV) to produce resistant transgenic plants of yellow passion fruit. A full-length CP gene from a severe PWV isolate from the state of São Paulo, Brazil (PWV-SP) was cloned into pCAMBIA 2300 binary vector, which was further introduced into Agrobacterium tumefaciens strain EHA 105. Leaf disks were used as explants for transformation assays, e.g., 2,700 and 2,730 disks excised from plants from the Brazilian cultivars IAC-275 and IAC-277, respectively. In vitro selection was performed in kanamycin. After transferring to the elongation medium, 119 and 109 plantlets of IAC-275 and IAC-277, respectively, were recovered. Integration of the PWV CP gene was confirmed in seven of eight plants evaluated by Southern blot analysis, showing different numbers of insertional events for the CP gene. Three transgenic plants (T3, T4, and T7) expressed the expected transcript, but the 32 kDa PWV CP was detected by Western blot in only two plants (T3 and T4). The results of three successive mechanical inoculations against the transgenic plants using three PWV isolates showed that the primary transformant T2 of IAC-277 was immune to all isolates.
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Affiliation(s)
- F Trevisan
- Laboratório de Biotecnologia Vegetal, CENA/USP, 13400-970 Piracicaba, SP, Brazil
| | - B M J Mendes
- Laboratório de Biotecnologia Vegetal, CENA/USP, 13400-970 Piracicaba, SP, Brazil
| | - S C Maciel
- Dept. de Entomologia, Fitopatologia e Zoologia Agrícola, ESALQ/USP, 13418-900 Piracicaba, SP, Brazil
| | - M L C Vieira
- Dept. de Genética, ESALQ/USP, 13418-900 Piracicaba, SP, Brazil
| | - L M M Meletti
- Centro de Fruticultura, Instituto Agronômico, 13020-902 Campinas, SP, Brazil
| | - J A M Rezende
- Dept. de Entomologia, Fitopatologia e Zoologia Agrícola, ESALQ/USP, 13418-900 Piracicaba, SP, Brazil
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