6 documents found, page 1 of 1
In vitro conservation and acclimatization of Epidendroideae (Orchidaceae) from ...
Menezes, Thays Saynara Alves; Blank, Maria de Fátima Arrigoni-; Costa, Andrea Santos da; Feitosa-Alcantara, Rosana Barroso; Blank, Arie FitzgeraldOrchids are known for the beauty, exuberance, and color of their flowers and therefore represent one of the most coveted ornamental plants. Due to their high commercial value, several illegal practices of removal and commercialization have led to the verge of extinction. This study aimed to develop protocols for in vitro conservation under slow growth and acclimatization of species of the subfamily Epidendroide...
Influence of N-P-K fertilization at the acclimatization stage on micropropagate...
Arrigoni-Blank, Maria de Fátima; Vasconcelos, Márcia Raquel Moura; Feitosa-Alcantara, Rosana Barroso; Moreira, Maria AparecidaBromeliads are known worldwide for their ornamental potential. In Brazil, species of the genus Tillandsia occur in the Atlantic rainforest, Amazon rainforest, and rocky fields. This work aimed to evaluate the influence of nitrogen, phosphorus, and potassium fertilization on micropropagated seedlings of Tillandsia bulbosa, at the acclimatization stage, and their leaf anatomy. The experiment was carried out in a ...
Chemical diversity of essential oils from Hyptis pectinata (L.) Poit
Feitosa-Alcantara, Rosana Barroso; Arrigoni-Blank, Maria de Fátima; Blank, Arie Fitzgerald; Nogueira, Paulo Cesar de Lima; Sampaio, Taís SantosThe essential oils are secondary metabolites formed by several chemical compounds that confer to these substances great social and economic importance. This diversity of compounds is generally determined by the genetic constitution of the plant, although environmental factors may also influence the type, amount, and concentrations of the compounds present in the essential oil. The aim of this work was to analyz...
Essential oils of Hyptis pectinata chemotypes: isolation, binary mixtures and a...
Feitosa-Alcantara, Rosana Barroso; Bacci, Leandro; Blank, Arie Fitzgerald; Alves, Péricles Barreto; Silva, Indira Morgana de AraújoLeaf-cutting ants are pests of great economic importance due to the damage they cause to agricultural and forest crops. The use of organosynthetic insecticides is the main form of control of these insects. In order to develop safer technology, the objective of this work was to evaluate the formicidal activity of the essential oils of two Hyptis pectinata genotypes (chemotypes) and their major compounds on the l...
Genetic diversity of native populations of Croton tetradenius Baill. using ISSR...
Almeida-Pereira, Camila Santos; Muniz, Ana Veruska Cruz da Silva; Alves, Rodrigo Pereira; Feitosa-Alcantara, Rosana BarrosoBrazil has about 300 Croton species in different types of vegetation. Croton tetradenius Baill., which is endemic to the Northeast region and predominant in the Caatinga vegetation, stands out among the several species of this genus. Considering the importance of knowing the genetic variability of a species, the objective of this study was to analyze the genetic diversity of the genotypes of natural populations...
Analysis of genetic diversity of Hyptis pectinata (L.) Poit. plants using ISSR ...
Feitosa-Alcantara, Rosana Barroso; Muniz, Ana Veruska Cruz da Silva; Blank, Arie Fitzgerald; Almeida-Pereira, Camila SantosHyptis pectinata, popularly known as ‘sambacaitá’ or ‘canudinho’, is a medicinal and aromatic species widely used in the Brazilian Northeast. In Sergipe, the excessive extraction of natural resources may reduce the genetic variability of native plants. Thus, molecular markers have frequently been applied to the characterization of genetic diversity as the basis for germplasm conservation and breeding programs. ...