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Physiological and S-nitrosoproteomic analyses during in vivo and in vitro embryogenesis in Brazilian pine (Araucaria angustifolia (Bertol.) Kuntze)

Grant number: 15/21075-4
Support type:Research Grants - Young Investigators Grants
Duration: December 01, 2016 - November 30, 2020
Field of knowledge:Biological Sciences - Botany - Applied Botany
Principal Investigator:André Luiz Wendt dos Santos
Grantee:André Luiz Wendt dos Santos
Home Institution: Instituto de Biociências (IB). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Assoc. researchers:Eny Iochevet Segal Floh ; Manuel Pedro Salema Fevereiro
Associated scholarship(s):19/06792-2 - Proteome analysis of A. angustifolia embryogenic cell cultures cultivated in the presence of nitric oxide donors, BP.TT
17/01284-3 - Physiological and S-nitrosoproteomic analyses during in vivo and in vitro embryogenesis in Brazilian pine (Araucaria angustifolia (Bertol.) Kuntze), BP.JP


The aim of this project is to identify molecular and physiological mechanisms that govern embryogenesis in Brazilian pine, and with that knowledge overcome the recalcitrance to complete the in vitro embryogenic program. To do that, we will combine information from Brazilian Pine embryogenesis and from cell lines of Medicago truncatula with different degrees of embryogenicity. For the identification of the molecular and physiological mechanisms controlling embryogenesis in both systems, we will use proteomic data (2D gel electrophoresis - LC-MS/MS and GeLC-MS/MS based label free proteomic profiling) associated to pharmacological manipulation of endogenous nitric oxide (NO) and polyamine (PAs) levels. We will give particular attention to the post-translational regulation of proteins mediated by S-nitrosylation during in vivo and in vitro embryogenesis. The results will bring new insights on basic and applied plant cell biology, namely in the protein signaling pathways that are regulated by S-nitrosylation and its role in PAs homeostasis in Brazilian pine and M. truncatula, as well as in the ability to use somatic embryogenesis to propagate Brazilian pine. The complementary skills and experience of the Project Proponent, BIOCEL (IB/USP) and BCV-ITQB (Universidade Nova de Lisboa) research teams will be essential to obtain the desired aim. (AU)

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DE OLIVEIRA, LEANDRO FRANCISCO; DOS SANTOS, ANDRE LUIS WENDT; FLOH, ENY IOCHEVET SEGAL. Polyamine and amino acid profiles in immature Araucaria angustifolia seeds and their association with embryogenic culture establishment. TREES-STRUCTURE AND FUNCTION, v. 34, n. 3 DEC 2019. Web of Science Citations: 0.
DE OLIVEIRA, LEANDRO FRANCISCO; NAVARRO, BRUNO VIANA; CERRUTI, GIOVANNI VICTORIO; ELBL, PAULA; MINOCHA, RAKESH; MINOCHA, SUBHASH C.; WENDT DOS SANTOS, ANDRE LUIS; SEGAL FLOH, ENY IOCHEVET. Polyamine- and Amino Acid-Related Metabolism: The Roles of Arginine and Ornithine are Associated with the Embryogenic Potential. Plant and Cell Physiology, v. 59, n. 5, p. 1084-1098, MAY 2018. Web of Science Citations: 4.

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