UTL Repository >
ISA - Instituto Superior de Agronomia >
BISA - Biblioteca do Instituto Superior de Agronomia / Library >
BISA - Dissertações de Mestrado / Master Thesis >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10400.5/2472

Title: Técnicas de estudo micromorfológico e molecular aplicadas ao género Hypericum
Authors: Costa, Sílvia Raquel de Araújo Gonçalves
Advisor: Monteiro, Ana Maria da Silva
Keywords: Hypericum
leaf anatomy
cuticular waxes
histochemical tests
ISSR
ITS
anatomia foliar
ceras epicuticulares
testes histoquimicos
Issue Date: 2010
Abstract: The aim of this work was the micromorphological and molecular characterization of some species of Hypericum. The morphological studies were accomplished on: H. calycinum, H. canariense, H. grandifolium, H. x inodorum and H. patulum. The molecular analysis was extended to two more species: H. androsaemum and H. perforatum ssp. perforatum. The morphological analysis were carried out by optical and scanning electron microscopy , and histochemical studies were done with reagents for the main groups of primary and secondary compounds. The epidermal characters such as size of epidermal cells, size and shape of stomata, stomatic index and presence of secretory cells are similar in all taxa. There were differences in the shape of the walls of epidermal cells, density of the cuticular waxes, index of glands and size of the mesophyll. The detected histochemical compounds are similar, except in the taxon H. patulum, which has steroids in glands (with antimony trichloride). In the study we used molecular markers ISSR and proceeded to the analysis of the sequences of the ITS region. The ISSR marker might have revealed a high degree of polymorphism and showed that the species H. inodorum and H. grandifolium are very close and the rate H. patulum and H. calycinum are species that are more remote, both morphological and molecular.
Description: Mestrado em Engenharia Agronómica - Protecção das Plantas - Instituto Superior de Agronomia
URI: http://hdl.handle.net/10400.5/2472
Appears in Collections:BISA - Dissertações de Mestrado / Master Thesis

Files in This Item:

File Description SizeFormat
Dissertação.pdf3.56 MBAdobe PDFView/Open
Statistics
FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpaceOrkut
Formato BibTex mendeley Endnote Logotipo do DeGóis 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 
Estamos no RCAAP Governo Português separator Ministério da Educação e Ciência   Fundação para a Ciência e a Tecnologia

Financiado por:

POS_C UE