Centro de Botânica
Aplicada à Agricultura

R&D Projects

 

Prospection, conservation and characterization of the genetic variability of autochthonous grapevine varieties in the regions of Alentejo and Algarve

 

Description: D:\ELSA-T\FotosVinha-Tomar2011\100HPIMG\HPIM1891.JPG

 

Proponent Institution:  CBAA/ISA

Principal Investigator:  Antero Martins

Funded by:  PRODER Nº 020000018999

Duration:  2011-2014

 

 

Prospection and conservation of genetic variability between and within all authoctonous Portuguese varieties in Alentejo e Algarve regions will be carried out (collection of 6000 genotypes in Alentejo and 4000 genotypes in Algarve) and a generalized prospection of wild vines (V. vinifera spp. sylvestris) in several hydrographic basins of Portugal will be performed.

 

 

Prospection and conservation of the intravarietal genetic variability of autochthonous grapevine varieties in the regions of Lisboa, Tejo and Península de Setúbal

 

Description: D:\ELSA-T\FotosVinha-Tomar2011\100HPIMG\HPIM1947.JPGProponent Institution:  CBAA/ISA

Principal Investigator:  Antero Martins

Funded by:  PRODER Nº 020000018572

Duration:  2011-2014

 

 

 

 

 

Prospection and conservation of genetic variability between and within all authoctonous Portuguese varieties in the regions of Lisboa, Tejo e Península de Setúbal will be carried out (collection of 5000 genotypes in Tejo, 4500 genotypes in Lisbon region genotypes and 2500 genotypes in Península de Setúbal) and all of that prospected variability will be preserved in the new Experimental Pole for Grapevine Conservation in pots and in the field according to adequate experimental designs.

 

 

Functional genomic analysis of the Portuguese grapevine germplasm: Development of molecular tools for agro-economical applications and conservation of genetic variability

 

Proponent Institution:  CBAA/ISA

Principal Investigator:  Sofia Pereira

Funded by:  PTDC/AGR-GPL/100552/2008

Duration:  2010-2013

 

 

 

Identification and characterization of genomic sequences involved in the phenotypic differences between and within grapevine varieties. These will be utilized for the development of practical applications contributing for the maintenance of ever-eroding genetic variability in grapevine.

 

 

SIAMVITI – Scenarios, impacts and adaptation measures in Viticulture

Proponent Institution:  CBAA/ISA 

Principal Investigator:  Pedro Aguiar Pinto

Funded by: PTDC/AAC-AMB/105024/2008

Duration:  2010-2013

 

The main goals of this project are:

(1)    Calibrate and validate a process based crop model for grapevine

(2)    Describe and quantify the impacts of future climate (2070-2100) in Portuguese viticulture;

(3)    Investigate possible adaptation measures at the crop management level.

 

 

VITIMULTISTRESS - Gene expression in grapevine (Vitis vinifera L) under multiple abiotic stresses

Proponent Institution:  CBAA/ISA

Principal Investigator:  Sara Amâncio

Funded by: PTDC/AGR-GPL 099624/2008

Duration:  2010-2012

 

(1) microarray expression of genes of leaf grapevine plants under field multiple stresses (MSs) or in controlled individual stresses (ISs): water,  temperature, light;

(2) validation by real-time (qrt) RT-PCR;

(3) prediction of promoter sequences of responsive genes;

(4) design of a highly specific (qrt) RT-PCR gene array to test MSs response of ´castas`.

 

 

TOM.ESCA: Closing Down on ESCA with Tomography

 

 

CBAA Responsible: Ricardo Boavida Ferreira

Funded by: QREN/ 5580 (I&DT Co-Promoção with EXACTRONIC company)

Duration: 2009-2012

 

 

Section of a Vitis vinifera plant infected with esca fungi

Esca is a disease caused by various fungi that is affecting vines all over the world in an irreversible way.  Since the imperceptiveness of the early stages of the disease, there is the need to develop a new non-destructive method to evaluate the infection degree of a vine. Our team is testing different non-destructive technologies to identify the presence of black goo in the vine trunks, a substance secreted by the vine that indicates the presence of esca fungi in the plant.  At the same time the team is extracting black goo from infected vines to study its composition and its action mechanism with/against esca fungi.

 

AQUAVITIS - Understanding water transport in Vitis vinifera: biochemical characterization of aquaporins upon their heterologous expression in yeast

Proponent Institution:  CBAA/ISA

Principal Investigator:  MC Loureiro Dias

Funded by: PTDC/AGR-AAM/099154/2008

Duration:  2010-2013

 

 

 

 

 

Our aim is to use yeast as a simple and well-characterized heterologous expression system to express aquaporin genes from a portuguese cultivar of Vitis vinifera (Touriga Nacional). Yeasts cells are suitable to study inhibitory or stimulatory effects of cations, pH and stress agents as ROS, on volume changes induced by osmotic shocks. The role of some key residues involved in aquaporin gating will also be evaluated.

 

 

Improving Debaryomyces hansenii biotechnological potential by understanding the impact of CUG mistranslation in stress tolerance

 

Proponent Institution:  FC/UP

CBAA Responsible: Catarina Prista

Funded by: PTDC/AGR-AAM/099154/2008

Duration:  2010-13

 

 

 

Debaromyces hansenii is an osmo-, halo-, and xerotolerant yeast. We expect to confirm that, similarly to what happens in C. albicans, CUG mistranslation plays a functional role in D. hansennii stress tolerance capabilities, evolving as a modulator towards environmental adaptation or to exploration of new ecological niches. Halo and osmo-tolerance molecular mechanisms will be glimpsed under a novel perspective.


 

WINE YEAST GENES - In search of genes behind the amazing performance of Saccharomyces cerevisiae during the late stages of wine fermentation

 

Proponent Institution:  CBAA/ISA

Principal Investigator:  Catarina Prista

Funded by: PTDC/AGR-ALI/112795/2009

Duration:  2011-2014

 

 

 

 

The aim of this work is to investigate how some regulatory pathways and some physiological mechanisms intervene in yeast cell behavior conferring high stress resistance and the ability to ferment hexoses up to exhaustion during the late stages of wine fermentation. We expect this approach will contribute for improved wine and for reduced sluggish and stuck fermentation problems.

 

 

Improvement of fructose fermentation by industrial Saccharomyces cerevisiae strains

 

Proponent Institution:  FCT/UNL

CBAA Responsible:  M José Leandro

Funded by: PTDC/AGR-ALI/112802/2009

Duration:  2011-2014

 

 

 

 

The best performing transporters to be isolated will be transferred to industrial strains and their ability to improve fructose metabolism in grape must and in carob pulp syrup will be tested. We expect the resulting strains to be useful to diminish the glucose/fructose utilization discrepancy, to improve ethanol yield and/or productivity, to help avoid the persistence of residual fructose in alcoholic beverages.

 

 

BIOPEPTIDES- Biopreservation of Ethanolic Fermentations: antimicrobial activity, biochemical properties and molecular characterization of yeast peptides

 

 

Proponent Institution:  LNEG

CBAA Responsible:  M Malfeito Ferreira

Funded by: PTDC/AGR-ALI/113565/2009

Duration:  2011-2013

 

 

The main goal of the present project is to identify, purify and characterise the bioactive peptides produced by S. cerevisiae strains and to evaluate their potential to be used as biopreservatives in industrial alcoholic fermentations. During the course of the project the bioactive peptides will be tested against the most dangerous contaminants of wine and fuel-ethanol production processes. We expect this approach will contribute for improved wine and for reduced sluggish and stuck fermentation problems

 

 

Ligand-binding stereospecificity of grapevine dirigent proteins: chiral induction for a new generation of fungicides

Proponent Institution: CBAA/ISA

Principal Investigator: Sara Monteiro

Funded by: PTDC/AGR-PRO/112340/2009

Duration:  2011-2014

 

Main objectives:

- Selection of DIR assisted related products as potential antifungal agents.

- Production of novel bioactive compounds based on chiral synthesis.

- New methods for asymmetric synthesis that would lead to the development of new and exciting chiral auxiliaries.

 

 

Genomic and epigenomic variability mediated by polyploidization and high temperature stress: biodiversity dynamics in an evolutionary perspective

 

Proponent Institution: CBAA/ISA

Principal Investigator: Manuela Gomes da Silva

Funded by: PTDC/BIA-BEC/101964/2008

Duration:  2010-2012

 

 

 

 

 

 

 

 

Genomic rearrangements in triticale

 

 

The project main goal is to recognize and characterize environmental stress influence in polyploid speciation through an integrative assessment of genomic and epigenomic adaptation after high temperature stress. Understanding environmental changes impact in labile polyploid genomes will certainly contribute to preserve genetic resources and conserve biodiversity with enhanced adjustment capability.

 

 

Genetic and epigenetic changes associated with cork quality

 

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Proponent Institution: CBAA/ISA

Principal Investigator: Leonor Morais

Funded by: PTDC/AGR-CFL/104197/2008

Duration:  2010-2013

 

 

 

 

 

Genetic and epigenetic changes associated with cork quality to identify genic and structural sequences from cork oak genome that could be associated with cork quality and with potential to be used as genetic and/or epigenetic markers for early selection of trees with good cork quality.

 

 

Genetic variation, reproductive diversity and ecology characterization for conservation of endemic and rare Limonium species from the Portuguese coastline

Proponent Institution: CBAA/ISA

Principal Investigator: Ana Cristina Delaunay Caperta

Funded by: Protocols with Cascais Natura Environmental Agency and Parque Natural Sintra-Cascais

Duration:  2009-2014

 

 

This current project focuses on the taxonomy, ecology, demography and reproductive biology of species from the genus Limonium (Plumbaginaceae) with particular emphasis in the Western shorelines of mainland Portugal. This involves work that ranges from the application of taxonomic, cytogenetic, and cytometric methods. These studies allow for establishing principles for conservation of wild species in their natural habitats.

 

Consequences of past and present climatic changes on biodiversity patterns of peat-rich environments: from genes to communities

Proponent Institution:  CBAA/ISA

Principal Investigator: Carlos Neto

Funded by: PTDC/AAC-AMB/111349/2009

Duration: 2011-2014

 

The present research project aims to study the paleobiogeographic and paleoclimatic historic significance of isolated peatland communities in the Iberian Peninsula, and their relative role in contribution to the reestablishment of post-glacial communities in Central Europe.

 

 

The wild relatives of Beta: genetic diversity assessment and biochemical studies

 

Proponent Institution: INRB/EAN

CBAA Responsible: Dalila Espirito-Santo

Funded by: PTDC/AGR-AAM/73144/2006

Duration: 2007-2011

 

 

 

 

 

 

 

 

Study of wild relatives of Beta in Portugal and in the Atlantic archipelagos of the Azores, Madeira and Cape Verde using parameters of taxonomy, molecular biology, physiology and biochemistry. Identification of populations of greater genetic variability and those that should be preserved.

 

 

C. elegans as a model to evaluate epigenetic effects of EDCs

Proponent Institution:  CBAA/ISA

Principal Investigator: Margarida Delgado

Funded by: PTDC/AAC-AMB/103968/2008

Duration: 2010-2013

 

This project aims to uncover toxicological effects of Endocrine Disrupting Chemicals (EDCs) associated with epigenetic modifications. It uses as whole organism model Caenorhabditis elegans as well as distinct human cell lines maintained in culture. The results obtained with both biological systems will contribute for risk access evaluation associated with EDCs and the methodology established can further be used for other chemicals.

 

 

New edible bioactive coatings for the improvement of food products quality

Proponent Institution: CEER/ISA

CBAA Responsible: Margarida Delgado

Funded by: PTDC/AGR-ALI/114706/2009

Duration:  2011-2013

 

In collaboration with Centro de Estudos de Engenharia Rural (CEER/ISA/UTL) trough in a project aiming the design of innovative bioactive edible coating for fruits and cheese products toxicological tests will be carried out in the model organism C. elegans as well in human cell cultures to guaranty their safety for consumers

 

 

MICROPHYTE - Metabolic engIneering of  Chlamydomonas and enviRonmental OPtimization for HYdrogen producTion  and release

Proponent Institution:  ITQB/UNL

CBAA Responsible:  Glória Esquível

Funded by:  PTDC/EBB-EBI/102728/2008

Duration:  2010-2013

 

Taking advantage of recent knowledge about the multiple facets of Chlamydomonas reinhardtii metabolism and the existence of a pyrenoid, rich in rubisco, that helps carbon assimilation, it is intended to improve the capacity to produce hydrogen and sequester CO2. By inducing certain culture conditions and using our collection of rubisco mutants, we are developing strategies to achieve our objectives.

 

 

Design: Jorge Anjos