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High level of sucrose, spermine and spermidine are related with the early germination in Plathymenia foliolosa compared to Dalbergia nigra

Abstract

Seeds are the major organs responsible for the continuation of the plant’s life cycle. The aim was to investigate the relationship of soluble sugars, polyamines and amino acids on seed germination and early seedling growth in Plathymenia foliolosa Benth. and Dalbergia nigra (Vell.) Allemão ex Benth., two Fabaceae endangered species from Brazilian Atlantic Forest. Analyses were performed in mature seeds (before) and after 1, 2, 5 and 8 days of imbibition for P. foliolosa and 2, 5, 8 and 11 days for D. nigra, corresponding to imbibition (phase I), root protrusion (phase II), root elongation and seedling (phase III) phases. Seeds of P. foliolosa complete germination before of D. nigra. The higher content of sucrose in the mature dry seed, and increasing contents of free spermidine and spermine during imbibition (phase I) and radicle protrusion (phase II) in P. foliolosa seeds could be related with the early germination in this species. The higher glucose contents and presence of maltose in mature dry seed and at the phases I and II might be associated with a more time necessary for seed germination in D. nigra. Free putrescine and fructose contents are necessary to seedling growth (phase III) in both species. This work is the first to report an association between these compounds during seed germination and early seedling growth in these species. This characterization can contribute to biochemical network of seed germination in wood species, and can be used in conservation programs of endangered species, as well as in biotechnological approaches to improve alternative methods of in vitro propagation, as somatic embryogenesis.

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Abbreviations

ANOVA:

Analysis of variance

DM:

Dry matter

FM:

Fresh matter

GABA:

γ-Aminobutyric acid

HPLC:

High performance liquid chromatography

OPA:

o-phthaldialdehyde

PA:

Polyamine

Put:

Putrescine

Spd:

Spermidine

Spm:

Spermine

WC:

Water content

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Acknowledgments

This research was supported by the Carlos Chagas Filho Foundation for Research Support in the State of Rio de Janeiro—FAPERJ (E26/111.389-2012, E26/102.989/2012 and E26/010.001507/2014) and the National Council for Scientific and Technological Development—CNPq (305645/2013-7 and 444453/2014-8). Scholarships were granted by Coordination for the Improvement of Higher Education Personnel—CAPES to APSR, LZP and VPMA.

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Correspondence to Claudete Santa-Catarina.

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de Souza Rios, A.P., Aragão, V.P.M., Passamani, L.Z. et al. High level of sucrose, spermine and spermidine are related with the early germination in Plathymenia foliolosa compared to Dalbergia nigra . Theor. Exp. Plant Physiol. 27, 237–249 (2015). https://doi.org/10.1007/s40626-015-0048-0

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  • DOI: https://doi.org/10.1007/s40626-015-0048-0

Keywords

  • Amino acids
  • Biochemical analyses
  • Fabaceae
  • HPLC analyses
  • Polyamines
  • Threatened woody species