caa a22 4500 467954437 CHVBK 20180405193745.0 cr unu---uuuuu 170328e20041001xx s 000 0 eng 10.1007/s10725-004-3120-3 doi (NATIONALLICENCE)springer-10.1007/s10725-004-3120-3 (NATIONALLICENCE)springer-10.1023/B:GROW.0000049413.87438.b4 Changes in endogenous polyamines during flower development in two diverse species of rose [Elektronische Daten] [Shweta Sood, Pramod Kumar Nagar] Changes in the concentrations of endogenous free, conjugated and bound polyamine were determined in petals of two different species of rose, viz. Rosa damascena and Rosa bourboniana, from small bud (stage 1) till full bloom (stage 8). High free putrescine and spermidine concentrations were associated with early stages of flower development and then decreased in R. damascena. At full bloom, the concentration of free putrescine was higher than rest of the polyamines measured. A steady increase in conjugated putrescine, spermidine and spermine was observed during entire period of flower development with predominance of conjugated putrescine at full bloom. In R. damascena the bound spermine was higher than rest of the polyamines during full bloom. In R. bourboniana, during the early stages of flower development, similar situation was observed, however, at full bloom, free spermidine concentration was higher than rest of the polyamines. In this species, the concentration of conjugated and bound spermine was higher than rest of the polyamines during full bloom. Polyamine concentrations were generally lower in the petals of R. bourboniana than R. damascena which may be due to genotypic differences. The possible roles of the observed polyamines are discussed in relation to flower development. Kluwer Academic Publishers, 2004 ADC : arginine decarboxylase nationallicence dcSAM : decarboxylated S-adenosylmethionine nationallicence DFMA : difluoromethylarginine nationallicence DFMO : difluoromethylornithine nationallicence HCA : hydroxycinnamic acids nationallicence MGBG : methylglyoxal-bis-guanylhydrazone nationallicence ODC : ornithine decarboxylase nationallicence PCA : perchloric acid nationallicence PVP : polyvinylpolypyrrolidone nationallicence SAM : S-adenosylmethionine nationallicence SAMDC : S-adenosylmethionine decarboxylase nationallicence TCL : thin cell layer nationallicence Flower development nationallicence Polyamines nationallicence Rosa bourboniana nationallicence Rosa damascena nationallicence Sood Shweta Division of Biotechnology, Institute of Himalayan Bioresource Technology, 176 061, Palampur, Himachal Pradesh, India aut Nagar Pramod Kumar Division of Biotechnology, Institute of Himalayan Bioresource Technology, 176 061, Palampur, Himachal Pradesh, India aut Plant Growth Regulation Kluwer Academic Publishers 44/2(2004-10-01), 117-123 0167-6903 44:2<117 2004 44 10725 https://doi.org/10.1007/s10725-004-3120-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10725-004-3120-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sood Shweta Division of Biotechnology, Institute of Himalayan Bioresource Technology, 176 061, Palampur, Himachal Pradesh, India aut NATIONALLICENCE 700 1- Nagar Pramod Kumar Division of Biotechnology, Institute of Himalayan Bioresource Technology, 176 061, Palampur, Himachal Pradesh, India aut NATIONALLICENCE 773 0- Plant Growth Regulation Kluwer Academic Publishers 44/2(2004-10-01), 117-123 0167-6903 44:2<117 2004 44 10725 NATIONALLICENCE 700 1- Sood Shweta Division of Biotechnology, Institute of Himalayan Bioresource Technology, Palampur, 176 061, Himachal Pradesh, India aut NATIONALLICENCE 700 1- Nagar Pramod Division of Biotechnology, Institute of Himalayan Bioresource Technology, Palampur, 176 061, Himachal Pradesh, India aut NATIONALLICENCE 856 40 https://doi.org/10.1023/B:GROW.0000049413.87438.b4 text/html Onlinezugriff via DOI Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE NATIONALLICENCE NL-springer