CSIR Central

Changes in endogenous polyamines during flower development in two diverse species of rose

IR@IHBT: CSIR-Institute of Himalayan Bioresource Technology, Palampur


Field	Value

Title	Changes in endogenous polyamines during flower development in two diverse species of rose

Creator	Sood, S Nagar , P K

Subject	Plant Biotechnology

Description	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.

Date	2004

Type	Article PeerReviewed

Format	application/pdf

Identifier	http://ihbt.csircentral.net/411/1/158_2004_Changes.pdf Sood, S and Nagar , P K (2004) Changes in endogenous polyamines during flower development in two diverse species of rose. Plant Growth Regulation, 44 (2). pp. 117-123.

Relation	http://ihbt.csircentral.net/411/