Consulta: creatorFacets:"REIS,MAURÍCIO S. DOS"
Registros recuperados: 4
Data/hora: 01/06/2024 18:55:41

Somatic embryogenesis in goiabeira serrana: genotype response, auxinic shock and synthetic seeds
Provedor de dados: Revista Brasileira de Fisiologia Vegetal
Autores: GUERRA,MIGUEL P.; DAL VESCO,LIRIO L.; DUCROQUET,JEAN PIERRE H.J.; NODARI,RUBENS O.; REIS,MAURÍCIO S. DOS.
The induction and control of in vitro somatic embryogenesis is dependent of a number of factors. The genotype of the mother plant donor of explants and the kind of auxin play essential roles in conferring embryogenic competence. Once obtained somatic embryos may be encapsulated in alginate originating synthetic seeds that can be stored at low temperatures. Considering this the present work aimed at the assessment of five different genotypes, five periods of 2,4-D shock (20 muM for 1, 2, 4, 8 and 16 weeks) (), and different substances supplemented to sodium alginate to obtain synthetic seeds. Zygotic embryos of Feijoa sellowiana were inoculated in basal LP medium (von Arnold and Erikson, 1981) supplemented with Morel’s vitamins, sucrose (3%) and phytagel...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acca sellowiana; Micropropagation; Pineapple-guava; Encapsulation.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-31312001000200001

Reproductive Biology of Varronia curassavica Jacq. (Boraginaceae)
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: HOELTGEBAUM,MARCIA P.; MONTAGNA,TIAGO; LANDO,ANA PAULA; PUTTKAMMER,CATARINA; ORTH,AFONSO INÁCIO; GUERRA,MIGUEL P.; REIS,MAURÍCIO S. DOS.
ABSTRACT Varronia curassavica, a subshrubby medicinal species associated with restinga in the Atlantic Forest, has been exploited by local people and the pharmaceutical industry. Indeed, restingas have experienced a continuous process of degradation, and thus, with species and ecosystem both at risk, efforts to support conservation actions are required. The present study aimed to evaluate aspects of V. curassavica reproductive biology. To accomplish this, morphological characterization was performed by monitoring flowering events. The availability of nectar and pollen, as well as the frequency and behavior of floral visitors and dispersers, was also evaluated. This species exhibits both heterostyly and protogyny. Anthesis is diurnal, and flowers last less...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dispersion; Heterostyly; Pollination; Floral resources.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000100059

Consumption of Euterpe edulis fruit by wildlife: implications for conservation and management of the Southern Brazilian Atlantic Forest
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: SILVA,JULIANO Z. DA; REIS,MAURÍCIO S. DOS.
Abstract: This study aimed to measure the wildlife consumption of Euterpe edulis fruit and use this data to discuss management possibilities. To estimate infructescence fruit volume consumed, collectors were installed in fruit-bearing palms. To characterize consumption from the ground, samples were placed next to fruiting palms. To identify wildlife and their activities, camera traps were installed in infructescences and on the ground. The results suggested that there was a small fruit surplus (1.8 %), and this finding indicated the possibility of a harvest to reduce food for the wildlife. However, recurrent variations in the annual fruit production (21.4 %) were also noted, and suggested that wildlife could tolerate some fruit harvesting. Thus, a harvest...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Natural regeneration; Non-timber forest products; Rain forest; Seed dispersal; Seed predation.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000100628

Bark Harvesting Systems of Drimys brasiliensis Miers in the Brazilian Atlantic Rainforest
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: MARIOT,ALEXANDRE; MANTOVANI,ADELAR; REIS,MAURÍCIO S. DOS.
Drimys brasiliensis Miers, locally known as cataia or casca-de-anta, is a native tree species of the Atlantic Rainforest. Its bark is harvested from natural populations. This study examined the recovery capacity of the bark of D. brasiliensis under different bark harvesting methods, as well as the influence of these approaches on its population dynamics and reproductive biology. While none of these treatments resulted in changes in phenological behavior or the rate of increase of diameter at breast height and tree height, the removal of wider bark strips resulted in lower rates of bark recovery and higher rates of insect attack and diseases. Accordingly, the results recommend using strips of bark 2 cm wide and 2 m long, with 4 cm between strips, for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bark harvesting; Medicinal plant; Sustainable management; Drimys brasiliensis; Insect attack.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301315