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Jaiana Malabarba

Jaiana Malabarba
Vilmorin-Mikado · Quality Control

PhD in Cell and Molecular Biology

About

22
Publications
2,511
Reads
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135
Citations
Additional affiliations
July 2020 - present
French National Institute for Agriculture, Food, and Environment (INRAE)
Position
  • PostDoc Position
October 2018 - June 2020
French National Institute for Agriculture, Food, and Environment (INRAE)
Position
  • PostDoc Position
July 2018 - October 2018
Universidade Federal do Rio Grande do Sul
Position
  • PostDoc Position
Education
September 2014 - July 2018
Universidade Federal do Rio Grande do Sul
Field of study
  • Cell and Molecular Biology
March 2013 - September 2014
Universidade Federal do Rio Grande do Sul
Field of study
  • Cell and Molecular Biology
March 2009 - December 2012
Universidade do Vale do Rio dos Sinos
Field of study
  • Biological Sciences

Publications

Publications (22)
Article
Full-text available
Cellular calcium transients are endogenous signals involved in local and systemic signaling and defense activation upon environmental stress, including wounding and herbivory. Still, not all Ca2+ channels contributing to the signaling have been identified, nor are their modes of action fully known. Plant annexins are proteins capable of binding to...
Article
Full-text available
The non-proteinogenic amino acid γ-aminobutyric acid (GABA) is present in all plant species analyzed so far. Its synthesis is stimulated by either acidic conditions occurring after tissue disruption or higher cytosolic calcium level. In mammals, GABA acts as inhibitory neurotransmitter but its function in plants is still not well understood. Beside...
Article
Seedlessness in grapes is a desirable trait, especially for in natura consumption. Previously, we showed that VviAGL11 is the main responsible gene for seed morphogenesis in grapevine. Here we tested the function of this gene in grapevine with the use of plant plasmids. VviAGL11 was cloned into silencing and overexpression versions of p28iIR plasmi...
Article
Full-text available
Despite recent progress, the application of CRISPR/Cas9 in perennial plants still has many obstacles to overcome. Our previous results with CRISPR/Cas9 in apple and pear indicated the frequent production of phenotypic and genotypic chimeras, after editing of the phytoene desaturase (PDS) gene conferring albino phenotype. Therefore, our first object...
Article
Despite the wide appreciation of seedless grapes, little is known about the molecular mechanisms that drive the stenospermocarpic seedless-type phenotype in grapevine. In order to address the molecular mechanisms that control seedlessness in grapevine, our study aimed to characterize VviAGL11, a class D MADS-box transcription factor gene that has b...
Article
Full-text available
Desiccation tolerance (DT) is one of the most important processes that seeds need to acquire during seed maturation because it will ensure survival until seeds have favourable conditions for germinating. Moreover, in the current climate warming context, heat stress and its impact on seed maturation and quality has been increasingly studied by the s...
Article
Full-text available
Plasmopara viticola is the oomycete that causes downy mildew in grapevines. Varying levels of resistance to P. viticola across grape cultivars allowed quantitative trait loci to be identified. The Rpv3 locus is located at chromosome 18, in a region enriched in TIR-NBS-LRR genes, and the phenotype associated is a high hypersensitive response. In thi...
Article
Full-text available
Seed maturation comprises important developmental processes, such as seed filling and the acquisition of seed germination capacity, desiccation tolerance, longevity, and dormancy. The molecular regulation of these processes is tightly controlled by the LAFL transcription factors, among which ABSCISIC ACID INSENSITIVE 3 (ABI3) was shown to be involv...
Article
Full-text available
Seed development needs the coordination of multiple molecular mechanisms to promote correct tissue development, seed filling, and the acquisition of germination capacity, desiccation tolerance, longevity, and dormancy. Heat stress can negatively impact these processes and upon the increase of global mean temperatures, global food security is threat...
Preprint
Full-text available
Seed development needs the coordination of multiple molecular mechanisms to promote correct tissue development, seed filling and the acquisition of germination capacity, desiccation tolerance, longevity and dormancy. Heat stress can negatively impact these processes and upon the increasing of global mean temperatures, global food security is threat...
Preprint
Full-text available
Plasmopara viticola is the oomycete that causes downy mildew in grapevine. Varying levels of resistance to P. viticola across grape cultivars allowed quantitative trait loci to be identified. The Rpv3 locus is located at chromosome 18, in a region enriched in TIR-NBS-LRR genes, and the phenotype associated is a high hypersensitive response. In this...
Article
Full-text available
Key message MdoDHN11 acts in the nucellus layer to protect the embryo and the endosperm from limited water availability during apple seed development. Abstract Dehydrins (DHNs) are protective proteins related to several plant developmental responses that involve dehydration such as seed desiccation and abiotic stresses. In apple (Malus × domestica...
Article
Full-text available
Grapevine (Vitis vinifera L., Vitaceae) belongs to the genus Vitis, and is characterized as a vine due to the presence of tendrils, which are located opposite to leaves. Tendrils are thigmo-responsive organs, able to carry out delicate mechanosensory responses upon touch and related stimuli. These organs are an adaptation of the plant to climb with...
Poster
Full-text available
Upon exogenous application of a D2 GABA to wounded leaves of pop2 5 plants, its uptake but no translocation to unwounded leaves was detected. In contrast, an accumulation of endogenous GABA was observed in vascular connected systemic leaves, showing a de novo synthesis of GABA in systemic untreated leaves.
Poster
Full-text available
Seedlessness is one of the most appreciated traits for table grapes. Previous data confirmed that the MADS-box VvAGL11 grapevine gene is essential for seed morphogenesis by complementation analysis in Arabidopsis agl11 mutants. Plant plasmids turn out to be a useful approach for functional gene studies without the traditional laborious somatic embr...
Poster
Full-text available
To investigate the genetic control of seedlessness and downy mildew resistance in grapevine our group analyzed the offspring generated from the crossing of cultivating seedless Vitis vinifera, 'Crimson Seedless', and the complex hybrid downy mildew resistant, 'Villard Blanc'. The results revealed the co-localization of QTLs on the distal portion of...
Poster
Full-text available
Objetivo Avaliar a dinâmica da diatomoflórula em três ambientes lóticos em pontos com diferentes graus de preservação da mata ciliar. Análise Qualitativa-Composição Florística Amostras para estudo da comunidade fitoplanctônica foram coletadas com rede de plâncton (40 passadas manuais) e fixadas com solução aquosa de formalina a 3-5 % (Bicudo, 1990)...
Poster
Full-text available
O fitoplâncton está estreitamente vinculado com a qualidade das águas e, como é sabido, os sistemas hídricos sofrem grande influência das atividades que são realizadas em suas margens, como as práticas do uso da terra que geram distúrbios. O conhecimento autoecológico do fitoplâncton, base da cadeia trófica dos ecossistemas aquática, auxilia na com...

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Projects

Projects (5)
Project
To understand the role of metabolites and unconventional calcium channels on systemic plant defense
Project
The DEswitch project aims at unravelling the molecular switch (DT switch) enabling the Desiccation Tolerance program to occur in seeds during seed development and germinating seeds.
Project
Acquire and improve cell engineering methods for 9 cultivated species (wheat, maize, rice, rapeseed, tomato, potato, poplar, apple, rose) Improving methods and increasing the capacity for transgenesis for the validation of genes of agronomic interest To allow France to maintain a capacity of expertise in a technological field, genome engineering, which is booming