• JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
 
  Bookmark and Share
 
 
Doctoral Thesis
DOI
https://doi.org/10.11606/T.11.1983.tde-20210104-195351
Document
Author
Full name
Antônio Natal Gonçalves
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
Piracicaba, 1982
Supervisor
Title in Portuguese
Reversão a juvenilidade e clonagem de Eucalyptus Urophylla S.T. Blake “in vitro”
Keywords in Portuguese
CLONAGEM
EUCALIPTO
JUVENILIDADE
Abstract in Portuguese
Os objetivos do presente trabalho foram: a reversão a juvenilidade e a clonagem “in vitro” de arvores de Eucalyptus Urophylla S.T. Blake de diferentes idades e populações. Os resultados indicam que: a - Houve variação entre e dentro de grupos de clones de diferentes idades e procedências para a multiplicação e o enraizamento de gemas; b - a variação da temperatura média no período dos testes experimentais provocou variações mais intensas entre culturas do que entre grupos de clones; c - a taxa média de clonagem foi de 7,5 x 1013 /ano; d - a multiplicação sucessiva de gemas com estímulo constante de 6 BAP (2 mg/l) foi eficiente na reversão à juvenilidade. Baseado nos resultados, foi feita uma proposta para a regulação da hereditariedade das células somáticas onde: a hereditariedade das células somáticas é uma manifestação dos mecanismos alostéricos na regulação da biossíntese e no deslocamento das relações entre e dentro dos nucleotídeos purínicos e pirimidínicos, e na transcrição, processamento e tradução de informações genéticas na diferenciação e desenvolvimento celular.
Title in English
Reversion to juvenility and cloning of Eucalyptus Urophylla S.T. Blake “in vitro”
Keywords in English

Abstract in English
The objectives of this study were the reversion to juvenility and the cloning of Eucalyptus Urophylla S.T. Blake trees from different populations and ages. By analysing the results of this study, the following conclusions were drawn: a - There w ere bud multiplication and rooting variation among and within groups of clones of different ages and provenances; b - average temperature during the period in which the experimental trials were carried out brought about more intense variations among the cultures than among groups of clones; e - average cloning rate was 7.5 x 1013/year; d - successive bud multiplication with constant stimulus of 6 BAP (2 mg/1) was efficient for the reversion of adult trees to juvenility. Based on the results obtained, a proposal was made for the regulation of somatic cell heredity where: the somatic cell heredity is a manifestation of the allosteric regulation mechanisms in the biosynthesis and in the shifts of the ratio between and within purine and pyrimidine nucleotides, and in the transcription, processing and translocation of genetic information in the cellular differentiation and development.
 
WARNING - Viewing this document is conditioned on your acceptance of the following terms of use:
This document is only for private use for research and teaching activities. Reproduction for commercial use is forbidden. This rights cover the whole data about this document as well as its contents. Any uses or copies of this document in whole or in part must include the author's name.
Publishing Date
2021-01-07
 
WARNING: Learn what derived works are clicking here.
All rights of the thesis/dissertation are from the authors
CeTI-SC/STI
Digital Library of Theses and Dissertations of USP. Copyright © 2001-2021. All rights reserved.