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Mello CM, DA Silva Gonalves D, DE Cerqueira Rossa-Feres D, Conte CE. The tadpole of Boana jaguariaivensis (Caramaschi, Cruz amp; Segalla, 2010) (Anura: Hylidae): external and internal oral cavity morphology. Zootaxa 2021; 5047:495-500. [PMID: 34810829 DOI: 10.11646/zootaxa.5047.4.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Indexed: 11/04/2022]
Affiliation(s)
- Caio Marinho Mello
- Instituto Neotropical: Pesquisa e Conservao. Rua Purus n 33, CEP 82520-750, Curitiba, PR, Brazil. Laboratrio de Ecologia e Conservao de Anfbios do BrasilLECAB, Universidade Tecnolgica Federal do Paran, campus Francisco Beltro. Linha Santa Brbara, s/n, CEP 85601-970, Francisco Beltro, PR, Brazil. .
| | - Darlene DA Silva Gonalves
- Programa de Ps-Graduao em Zoologia da Universidade Federal do Paran, Departamento de Zoologia, Centro Politcnico. Avenida Coronel Francisco Herclito dos Santos, n 100, CEP 81530-980 Curitiba, PR, Brazil..
| | - Denise DE Cerqueira Rossa-Feres
- Laboratrio de Ecologia Terica, Departamento de Zoologia e Botnica, Universidade Estadual PaulistaUNESP. Rua Cristvo Colombo, n 2265, CEP 15054-000, So Jos do Rio Preto, So Paulo, Brazil..
| | - Carlos Eduardo Conte
- Instituto Neotropical: Pesquisa e Conservao. Rua Purus n 33, CEP 82520-750, Curitiba, PR, Brazil. Criadouro On Pintada. Estrada do Pocinho, n 500, CEP 834360-000, Campinha Grande do Sul, Paran, Brazil. .
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Mello CM, DA Silva Gonçalves D, Rossa-Feres DDEC, Conte CE. The tadpole of Physalaemus lateristriga (Steindachner, 1864) (Anura: Leptodactylidae): external and oral internal morphology. Zootaxa 2021; 4948:zootaxa.4948.3.9. [PMID: 33757022 DOI: 10.11646/zootaxa.4948.3.9] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Indexed: 11/04/2022]
Abstract
The genus Physalaemus Fitzinger is composed by 49 species (Frost 2020), which are grouped in two major clades (Lourenço et al. 2015), the Physalaemus cuvieri and P. signifer clades. Within the P. cuvieri clade, five species groups are recognized: P. biligonigerus, P. cuvieri, P. gracilis, P. henselii, and P. olfersii (Lourenço et al. 2015). According to Lourenço et al. (2015), seven species are assigned to the P. olfersii group: P. feioi, P. insperatus, P. lateristriga, P. maximus, P. olfersii, P. orophilus, and P. soaresi. Regarding their larval stage, four species have their tadpoles described for external morphology: P. maximus, P. olfersii, P. orophilus, and P. soaresi (Weber et al. 2005; Baêta et al. 2007; Giaretta et al. 2009; Pezzuti et al. 2019); two of them have their tadpoles described for oral internal morphology: P. maximus and P. soaresi (Ruggeri Weber 2012). Herein, we describe the external and oral internal morphology of tadpole of P. lateristriga from Paraná State, southern Brazil, and compare them to the known tadpoles of the P. olfersii group.
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Affiliation(s)
- Caio Marinho Mello
- Grupo de Pesquisa Bioacústica, Ecologia e Comportamento Animal-BECA, Instituto Federal do Paraná, Pinhais, PR, Brazil. Instituto Neotropical: Pesquisa e Conservação. Rua Purus nº 33, CEP 82520-750, Curitiba, PR, Brasil..
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Forti LR, Haddad CFB, Leite F, Drummond LDO, de Assis C, Crivellari LB, Mello CM, Garcia PCA, Zornosa-Torres C, Toledo LF. Notes on vocalizations of Brazilian amphibians IV: advertisement calls of 20 Atlantic Forest frog species. PeerJ 2019; 7:e7612. [PMID: 31565563 PMCID: PMC6746222 DOI: 10.7717/peerj.7612] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 05/03/2019] [Accepted: 08/05/2019] [Indexed: 11/20/2022] Open
Abstract
Bioacoustics is a powerful tool used for anuran species diagnoses, given that advertisement calls are signals related to specific recognition and mate attraction. Thus, call descriptions can support species taxonomy. In spite of that, call descriptions are lacking for many species, delaying advances in biodiversity research. Here, we describe the advertisement calls of 20 anuran species from the Brazilian Atlantic Forest. We accessed 50 digital recordings deposited in the Fonoteca Neotropical Jacques Vielliard. Acoustic analyses were carried out in the software Raven pro 1.5. We provide a general comparison of call structure among species inside taxonomic groups and genera. The vocalizations described here belong to poorly known species, which are representatives of six families: Brachycephalidae, Bufonidae, Ceratophryidae, Cycloramphidae, Hylidae, and Phyllomedusidae. Despite this, still there are 163 species of anurans from Atlantic Forest with calls not formally described. Our work represents an important step in providing data for a taxonomic perspective and improving the knowledge of the Atlantic Forest anuran diversity.
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Affiliation(s)
| | | | - Felipe Leite
- Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Viçosa, Florestal, MG, Brazil
| | - Leandro de Oliveira Drummond
- Centro de Biociências e Biotecnologia, Universidade Estadual Norte Fluminense, Campos dos Goytacazes, Rio de Janeiro, Brazil
| | - Clodoaldo de Assis
- Programa de Pós-Graduação em Biologia Animal, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
| | | | - Caio Marinho Mello
- Programa de Pós-Graduação em Zoologia, Universidade Federal do Paraná, Curitiba, Paraná, Brazil
| | | | - Camila Zornosa-Torres
- Departamento de Biologia Animal, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | - Luís Felipe Toledo
- Departamento de Biologia Animal, Universidade Estadual de Campinas, Campinas, SP, Brazil
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Mello CM, Gonçalves DDS, Solé M, Rossa-Feres DDC, Conte CE. A comparison of tadpoles of two populations of Leptodactylus plaumanni (Anura: Leptodactylidae), with a discussion of Leptodactylus tadpole morphology. Studies on Neotropical Fauna and Environment 2018. [DOI: 10.1080/01650521.2018.1492661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Caio Marinho Mello
- Programa de Pós-Graduação em Zoologia, Departamento de Zoologia, Universidade Federal do Paraná, Curitiba, PR, Brazil
- Grupo de Pesquisa Bioacústica, Ecologia e Comportamento Animal – BECA, Instituto Federal do Paraná, Pinhais, PR, Brazil
| | - Darlene da Silva Gonçalves
- Programa de Pós-Graduação em Zoologia, Departamento de Zoologia, Universidade Federal do Paraná, Curitiba, PR, Brazil
| | - Mirco Solé
- Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, BA, Brazil
- Herpetology Section, Zoologisches Forschungsmuseum Alexander Koenig, Bonn, Germany
| | - Denise de Cerqueira Rossa-Feres
- Laboratório de Ecologia Teórica, Departamento de Zoologia e Botânica, Universidade Estadual Paulista - UNESP, São José do Rio Preto, SP, Brazil
| | - Carlos Eduardo Conte
- Instituto Neotropical: Pesquisa e Conservação, Curitiba, PR, Brazil
- Criadouro Onça Pintada, Campinha Grande do Sul, PR, Brazil
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Morin KM, Arcidiacono S, Beckwitt R, Mello CM. Recombinant expression of indolicidin concatamers in Escherichia coli. Appl Microbiol Biotechnol 2005; 70:698-704. [PMID: 16158282 DOI: 10.1007/s00253-005-0132-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2005] [Revised: 07/29/2005] [Accepted: 08/04/2005] [Indexed: 11/26/2022]
Abstract
Antimicrobial peptides are part of the innate immune system of vertebrates and invertebrates. They are active against gram-negative and gram-positive bacteria, fungi, and protozoa. Currently, most antimicrobial peptides are extracted from host organisms or produced by solid-phase peptide synthesis. Recombinant protein expression in Escherichia coli is a tool for greater production yields at a decreased cost and reduces the use of hazardous materials. We have constructed a concatamer of indolicidin and successfully expressed a fusion product with thioredoxin in E. coli BL21DE3. Codons for methionine residues flanking individual indolicidin genes were incorporated for cyanogen bromide cleavage of the fusion protein and liberation of active monomeric indolicidin. Peptide yields of 150 microg/l monomeric indolicidin were achieved in this first report of recombinant production of indolicidin with demonstrated antimicrobial activity.
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Affiliation(s)
- K M Morin
- U.S. Army Natick Soldier Center, 1 Kansas Street, Natick, MA 01760, USA
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Hoskin FC, Walker JE, Mello CM. Organophosphorus acid anhydrolase in slime mold, duckweed and mung bean: a continuing search for a physiological role and a natural substrate. Chem Biol Interact 1999; 119-120:399-404. [PMID: 10421476 DOI: 10.1016/s0009-2797(99)00051-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Recently, and for the first time, a diisopropylphosphorofluoridate (DFP)-hydrolyzing enzyme, i.e. an organophosphorus acid anhydrolase (OPAA), has been reported in a plant-source. Based on this and other suggestive evidence, the ability of three plant sources and a protist to hydrolyze DFP and 1,2,2-trimethylpropyl methylphosphonofluoridate (Soman) were tested, and the effects of Mn2+ and ethylenediamine tetraacetate (EDTA) on this activity. The plants are duckweed (Lemna minor), giant duckweed (Spirodela oligorhiza), and germinated mung bean (Vigna radiata); the protist is a slime mold (Dictyostelium discoidium). The tests are based on a crude classification of OPAAs as 'squid type' (DFP hydrolyzed more rapidly than Soman) and all of the others termed by us, with questionable justification, as 'Mazur type' (Soman hydrolyzed more rapidly than DFP). Of the two duckweeds, Spirodela oligorhiza hydrolyzes Soman but not DFP, and Lemna minor does not hydrolyze either substrate. In contrast to the report of Yu and Sakurai, mung bean does not hydrolyze DFP and hydrolyzes Soman with a 5-fold stimulation by Mn2+ and a marked inhibition by EDTA. The slime mold hydrolyzes Soman more rapidly than DFP (but does hydrolyze DFP) and the hydrolysis is Mn2+ stimulated. The failure of these plant sources to hydrolyze DFP is similar to the behavior of OPAA from Bacillus stearothermophilus.
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Affiliation(s)
- F C Hoskin
- Marine Biological Laboratory, Woods Hole, MA 02543, USA
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Szafranski P, Mello CM, Sano T, Smith CL, Kaplan DL, Cantor CR. A new approach for containment of microorganisms: dual control of streptavidin expression by antisense RNA and the T7 transcription system. Proc Natl Acad Sci U S A 1997; 94:1059-63. [PMID: 9037005 PMCID: PMC19743 DOI: 10.1073/pnas.94.4.1059] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.4] [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: 02/03/2023] Open
Abstract
The use of microorganisms in the open environment would be of less concern if they were endowed with programmed self-destruction mechanisms. Here, we propose a new genetic design to increase the effectiveness of cell suicide systems. It ensures very tight control of the derepression of cell death by the combination of the bacteriophage T7 RNA polymerase-lysozyme system and an inducible synthesis of antisense RNA and the Escherichia coli LacI repressor. Functionality of this regulatory concept was tested by applying it to containment of Gram-negative bacteria, based on the conditional expression of the lethal Streptomyces avidinii streptavidin gene. Toxicity of streptavidin is derived from its exceptionally high binding affinity for an essential prosthetic group, D-biotin. The entire construct was designed to allow the soil bacterium Pseudomonas putida to survive only in the presence of aromatic hydrocarbons and their derivatives which it can degrade. Under favorable growth conditions, clones escaping killing appeared at frequencies of only 10(-7)-10(-8) per cell per generation. The general requirement for biotin through the living world should make streptavidin-based conditional lethal designs applicable to a broad range of containment strategies.
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Affiliation(s)
- P Szafranski
- Department of Biomedical Engineering, Boston University, MA 02215, USA
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Abstract
The granulomatous peritonitis by ascaris (GPA) is a rare complication of intestinal ascariasis due to the perforation of the digestive tract by the adult worm, which deposits its ova in free peritoneum; therefore, provoking an intense granulomatous inflammatory reaction. We report a case of an 8-year-old boy with GPA, emphasizing the clinical and diagnostical aspects and the therapeutics procedures.
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Affiliation(s)
- C M Mello
- Department of Pediatric Surgery, Universidade Federal Fluminense, Rio de Janeiro, Brazil
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Abstract
Using the gel shift assay system, we have measured the apparent affinity constant for the interaction of two different DNAs with MAP proteins found in both total calf brain microtubules and heat stable brain preparations. Both DNAs studied contained centromere/kinetochore sequences- one was enriched in the calf satellite DNA; the other was a large restriction fragment containing the yeast CEN11 DNA sequence. Complexes formed using both DNAs had similar Kapp values in the range of 2.1 x 10(7) M-1 to 2.0 x 10(8) M-1. CEN11 DNA-MTP complexes had by far the highest Kapp value of 2.0 x 10(8) M-1. The CEN11 DNA sequence is where the yeast kinetochore of chromosome 11 is formed and where the single yeast microtubule is bound in vivo. The CEN11 conserved region II known binding sites-(dA/dT)n runs- for mammalian MAP2 protein, are in good agreement with this higher Kapp value. The effects of the classical tubulin binding drugs colchicine, podophyllotoxin and vinblastine on the DNA-MAP protein complex stability were investigated by determining the drug concentrations where the complexes were destabilized. Only the complexes formed from total microtubule protein (tubulin containing) were destabilized over a wide drug concentration range. Heat stable brain protein complexes (no tubulin) were largely unaffected. Furthermore, it took 10-100 fold higher drug concentrations to disrupt the CEN11 DNA complexes compared to the calf thymus satellite DNA enriched complexes. These data support our previous results suggesting that there is a DNA sequence dependent interaction with MAP proteins that appears to be conserved in evolution (Marx et. al., Biochim. Biophys. Acta. 783, 383-392, 1984; Marx and Denial, Molecular Basis of Cancer 172B, 65-75 1985). In addition, these results imply that the classical tubulin binding drugs may exert their biological effects in cells at least in part by disrupting DNA-Protein complexes of the type we have studied here.
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Affiliation(s)
- C M Mello
- Department of Chemistry, University of Massachusetts, Lowell 01854
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Smith JD, Mello CM, O'Reilly DJ. Separation of phospholipids and phosphonolipids of Tetrahymena by high-performance liquid chromatography. J Chromatogr 1988; 431:395-9. [PMID: 3243794 DOI: 10.1016/s0378-4347(00)83108-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- J D Smith
- Department of Chemistry, Southeastern Massachusetts University, North Dartmouth 02747
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