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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Polyamine and amino acid profiles in immature Araucaria angustifolia seeds and their association with embryogenic culture establishment

Full text
Author(s):
de Oliveira, Leandro Francisco [1] ; dos Santos, Andre Luis Wendt [1] ; Floh, Eny Iochevet Segal [1]
Total Authors: 3
Affiliation:
[1] Univ Sao Paulo, Inst Biosci, Dept Bot, BR-05508090 Sao Paulo, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: TREES-STRUCTURE AND FUNCTION; v. 34, n. 3 DEC 2019.
Web of Science Citations: 0
Abstract

Key message Analysis of polyamines and amino acid profiles in Araucaria angustifolia immature seeds from two mother tree genotypes in 2 consecutive years, and their association with the establishment of embryogenic cultures. Polyamines (PAs) and amino acids are an important source of nitrogen in plants. They are known to participate in plant development and their levels are associated with specific zygotic and somatic embryogenesis stages, which means that they may be useful as biochemical markers of developmental stages. The present study carried out an analysis of PA and amino acid profiles in immature Araucaria angustifolia seeds from two mother tree genotypes over 2 consecutive years, and their association with the initiation and maintenance of embryogenic cultures (ECs). The results showed that initiation of ECs in A. angustifolia, as observed in other conifers, depends on harvest year and mother tree genotype. PA and amino acid profiles showed that seeds from distinct mother trees and harvest years are different from one another. These differences were reflected in the initiation of ECs. The metabolic analysis indicates that conjugated Spd, ornithine, and asparagine profiles are candidates as biochemical markers for selection of mother trees. These results will allow for the testing of a large number of mother trees as explant sources and the selection of those with higher potential for somatic embryogenesis. (AU)

FAPESP's process: 15/21075-4 - Physiological and S-nitrosoproteomic analyses during in vivo and in vitro embryogenesis in Brazilian pine (Araucaria angustifolia (Bertol.) Kuntze)
Grantee:André Luiz Wendt dos Santos
Support Opportunities: Research Grants - Young Investigators Grants
FAPESP's process: 12/22738-9 - Polyamine metabolism in zygotic and somatic embryogenesis of Araucaria angustifolia (Bert.) O. Kuntze
Grantee:Leandro Francisco de Oliveira
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 16/17541-2 - From stress to embryos: molecular and physiological mechanisms associated to somatic embryogenesis
Grantee:Eny Iochevet Segal Floh
Support Opportunities: Regular Research Grants
FAPESP's process: 17/01284-3 - Physiological and S-nitrosoproteomic analyses during in vivo and in vitro embryogenesis in Brazilian pine (Araucaria angustifolia (Bertol.) Kuntze)
Grantee:André Luiz Wendt dos Santos
Support Opportunities: Scholarships in Brazil - Young Researchers
FAPESP's process: 18/08215-0 - Study of post-transcriptional gene regulation processes in the somatic embryogenesis in Araucaria angustifolia
Grantee:Leandro Francisco de Oliveira
Support Opportunities: Scholarships in Brazil - Post-Doctoral