Biologia Plantarum

, Volume 51, Issue 3, pp 530–532

Changes in free polyamines and gene expression during peach flower development

Brief Communication

DOI: 10.1007/s10535-007-0114-9

Cite this article as:
Liu, J.H. & Moriguchi, T. Biol Plant (2007) 51: 530. doi:10.1007/s10535-007-0114-9

Abstract

Free polyamine contents and expressions of five genes encoding for polyamine biosynthetic enzymes were investigated at four different stages during peach (Prunus persica L. Batsch cv. Akatsuki) flower development. Fresh mass of peach flowers increased, accompanied by reduction in contents of total polyamines and putrescine/spermidine ratio due to decrease in putrescine content. Spermidine, the largest fraction, and spermine, the least part, underwent minor change. Expressions of the five key genes involved in polyamine biosynthesis during flower development did not parallel the changes in free polyamines.

Additional key words

HPLC Prunus persica putrescine spermidine spermine 

Abbreviations

ADC

arginine decarboxylase

DFMA

α-difluoromethylarginine

DFMO

α-difluoromethylornithine

ODC

ornithine decarboxylase

Put

putrescine

SAMDC

S-adenosylmethionine decarboxylase

Spd

spermidine

SPDS

spermidine synthase

Spm

spermine

SPMS

spermine synthase

Copyright information

© Institute of Experimental Botany, ASCR 2007

Authors and Affiliations

  1. 1.National Centre of Crop Molecular BreedingHuazhong Agricultural UniversityWuhanP.R. China
  2. 2.National Institute of Fruit Tree ScienceTsukuba, IbarakiJapan

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