Consulta: creatorFacets:"Gonçalves,Jamile Fabbrin"
Registros recuperados: 7
Data/hora: 11/06/2024 10:21:51

Plasma ion levels of freshwater and marine/estuarine teleosts from Southern Brazil
Provedor de dados: 83
Autores: Becker,Alexssandro Geferson; Gonçalves,Jamile Fabbrin; Toledo,Jaderson dos Anjos; Burns,Marcelo D. M.; Garcia,Luciano de Oliveira; Vieira,João Paes; Baldisserotto,Bernardo.
The purpose of this study was to investigate Na+, Cl-, K+, Ca2+, and Mg2+ levels in the plasma of freshwater and marine/estuarine teleosts collected at different salinities (0 to 34) from the estuarine and freshwater portions of the São Gonçalo channel in Southern Brazil. Any relationship between plasma ion levels and salinity and the capacity of ionic regulation of teleosts found at three or more different salinities (Genidens barbus and Micropogonias furnieri) was also investigated. Results showed no relationship between plasma ion levels and salinity when considering all species together, but the two species collected from three or more different salinities showed a significant positive relationship between plasma ion levels and salinity, indicating...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ariidae; Estuaries; Ionoregulation; Osmoregulation; Salinity; Sciaenidae.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000400021

Presence of multiple acid phosphatases activity in seedlings of cucumber, radish and rocket salad
Provedor de dados: 65
Autores: Tabaldi,Luciane Almeri; Ruppenthal,Raquel; Pereira,Luciane Belmonte; Cargnelutti,Denise; Gonçalves,Jamile Fabbrin; Morsch,Vera Maria; Schetinger,Maria Rosa Chitolina.
Acid phosphatases (3.1.3.2) are a group of enzymes widely distributed in nature, which catalyze the hydrolysis of a variety of phosphate esters in the pH range of 4-6. We confirmed the presence of acid phosphatases in seedlings of cucumber (Cucumis sativus), radish (Raphanus sativus) and rocket salad (Eruca vesicaria) under different assay conditions using a rapid and simple preparation. The results showed that the optimum pH and temperature used for all species were close to 5.5 and 35°C, respectively. The enzyme was inhibited by molybdate, fluoride, azide, levamisole, orthovanadate, Zn2+ and Cu2+. Suramin had no effect on enzyme activity. The acid phosphatase from cucumber, radish and rocket salad hydrolyzed a wide variety of phosphate esters and the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cucumis sativus; Raphanus sativus; Eruca vesicaria; Phosphatases.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782008000300009

Micronutrient concentration in potato clones with distinct physiological sensitivity to Al stress
Provedor de dados: 65
Autores: Tabaldi,Luciane Almeri; Castro,Gabriel Y; Cargnelutti,Denise; Skrebsky,Etiane Caldeira; Gonçalves,Jamile Fabbrin; Rauber,Renata; Rossato,Liana; Schetinger,Maria Rosa Chitolina; Bisognin,Dílson Antônio; Nicoloso,Fernando Teixeira.
The objective of this study was to evaluate the effects of aluminum (Al) on the zinc (Zn), manganese (Mn), iron (Fe) and copper (Cu) concentrations in four potato clones (Macaca and Dakota Rose: both Al-sensitive clones; and SMIC148-A and Solanum microdontum: both Al-tolerant-clones), grown in a nutrient solution (pH 4.00) with 0, 50, 100, 150 and 200mg Al L-1. Root Zn and Fe concentrations decreased linearly with the increase of Al levels in Macaca, SMIC148-A and Dakota Rose and increased linearly in S. microdontum. Shoot Zn concentration showed a quadratic relationship with Al in S. microdontum and SMIC148-A, but a curvilinear response in Dakota Rose. Shoot Fe concentration showed a quadratic relationship with Al in S. microdontum, SMIC148-A and Dakota...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum tuberosum; Solanum microdontum; Zinc; Manganese; Iron; Copper.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782009000200010

Aluminum accumulation in two Pfaffia glomerata genotypes and its growth effects
Provedor de dados: 65
Autores: Maldaner,Joseila; Nicoloso,Fernando Teixeira; Tabaldi,Luciane Almeri; Cargnelutti,Denise; Skrebsky,Etiane Caldeira; Rauber,Renata; Gonçalves,Jamile Fabbrin; Rossato,Liana Verônica.
Aluminum (Al) toxicity is a limiting factor for crop production in acid soils, which cover approximately 60% of the Brazilian territory. This study aimed to evaluate the effects of Al on growth and tissue Al concentration of two Pfaffia glomerata accessions (BRA and JB/UFSM). Plantlets were grown in a hydroponic system with five Al concentrations (0, 50, 100, 150 and 200mg L-1) for 7 days. Most of the evaluated parameters presented significant interaction between both P. glomerata accessions and Al levels in nutrient solution and, in general, Al treatments negatively affected plant growth, especially roots. Moreover, BRA accession showed higher Al accumulation in its tissues than JB/UFSM and, consequently in BRA accession the growth was impaired...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brazilian Ginseng; Acid soils; Al toxicity.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000601013

Crescimento in vitro de plântulas de batata em diferentes doses de cádmio
Provedor de dados: 65
Autores: Gonçalves,Jamile Fabbrin; Maldaner,Joseila; Rossato,Liana Veronica; Tabaldi,Luciane Almeri; Skrebsky,Etiane Caldeira; Farias,Júlia Gomes; Bisognin,Dilson Antônio; Nicoloso,Fernando Teixeira.
Devido, principalmente, às ações antropogênicas, tais como industrialização e uso de insumos na agricultura, os níveis de cádmio têm aumentado em muitos solos agrícolas. O presente trabalho objetivou caracterizar o efeito desse metal no crescimento in vitro de duas cultivares de batata, 'Asterix' e 'Macaca'. Segmentos nodais de plantas previamente estabelecidas in vitro foram submetidos a doses de cádmio de 0 (controle), 100, 200, 300, 400 e 500µM em meio de cultivo MS. Avaliou-se o número de raízes aos 15 dias após a inoculação (DAI) dos explantes, o comprimento das raízes e da parte aérea, o número de segmentos nodais e de folhas e a matéria fresca e seca das raízes e da parte aérea aos 22DAI. O cádmio afetou negativamente o crescimento das duas...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum tuberosum; Metal pesado; Clones; Toxicidade.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782009000900038

Dissolved oxygen and ammonia levels in water that affect plasma ionic content and gallbladder bile in silver catfish
Provedor de dados: 65
Autores: Becker,Alexssandro Geferson; Garcia,Luciano de Oliveira; Kochhann,Daiani; Gonçalves,Jamile Fabbrin; Loro,Vania Lúcia; Baldisserotto,Bernardo.
Ionic contents (Na+, K+ and Cl-) of plasma and gallbladder bile (GB) of juveniles silver catfish, Rhamdia quelen (156.1±0.2g, 28.2±0.3cm), were determined in three different times (0, 6 and 24h) after exposure to: a) control or high dissolved oxygen (DO = 6.5mg L-1) + low NH3 (0.03mg L-1); b) low DO (3.5mg L-1) + low NH3; c) high DO + high NH3 (0.1mg L-1); and d) low DO + high NH3. High waterborne NH3 or low DO levels increased plasma and GB ion levels. These parameters might have followed different mechanisms to affect osmoregulation since a synergic effect of these variables was detected.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nitrogen compound; Hypoxia; Ion levels; Jundiá; Osmoregulation.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782009000600020

Morphometric parameters comparisons of the digestive tract of four teleosts with different feeding habits
Provedor de dados: 65
Autores: Becker,Alexssandro Geferson; Gonçalves,Jamile Fabbrin; Garcia,Luciano Oliveira; Behr,Everton Rodolfo; Graça,Dominguita Luhers; Kurtz Filho,Mário; Martins,Tessie; Baldisserotto,Bernardo.
The present study compared some morphometric parameters of the digestive tract of four teleosts with different feeding habits: traira (Hoplias malabaricus, carnivore), silver catfish (Rhamdia quelen, omnivore), hassar (Hoplosternum littorale, omnivore), and grass carp (Ctenopharyngodon idella, herbivore). The digestive tract was removed from fish collected from nature and fixed for some morphometric analyses, such as: intestinal quotient, intestinal area quotient, vilosity height, digestive somatic index, and hepatosomatic index. Grass carp showed the highest values of intestinal quotient and height vilosity. On the other hand, the intestinal area quotient was higher in traira than in the other species. The intestinal quotient can be used to estimate the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gastrointestinal tract; Intestine; Morphological parameters; Pyloric ceca.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782010000400018