+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Effects of red light on gibberellin 3beta-hydroxylase gene expression in dark-grown seedlings of dwarf and tall cultivars of Pisum sativum



Effects of red light on gibberellin 3beta-hydroxylase gene expression in dark-grown seedlings of dwarf and tall cultivars of Pisum sativum



Journal of plant physiology 159(6): 607-612



The changes in growth and gene expression of gibberellin (GA) 3beta-hydroxylase were determined in dark-grown, 6-day-old, tall (cv. Alaska) and dwarf (cv. Progress No. 9) pea (Pisum sativum L.) seedlings after transfer to conditions of red light irradiation. Red light inhibited the shoot elongation of Progress No. 9 much more so than that of Alaska, and the elongation of Progress No. 9 during 48 h was 23 % that of Alaska. The transcript level of the GA 3beta-hydroxylase gene was slightly greater in the shoots of dark-grown Alaska than that of dark-grown Progress No. 9. The red light decreased the transcript levels in both cultivars and the levels at 48 h were about 50 % and 60 % compared to the initial levels for Alaska and Progress No. 9, respectively. These results indicate that the difference in the transcript levels in both cultivars is not apparent. The only difference in GA 3beta-hydroxylase proteins between Alaska and Progress No. 9 was the replacement of alanine with threonine at position 229 in their amino acid residues, which may affect the activity of the enzyme and may, at least partially, contribute to the growth habits of those cultivars. A possibility of additional function to distinguish the growth habits of those cultivars is also discussed here.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 010562086

Download citation: RISBibTeXText


Related references

Red light-induced dwarfism and gibberellin 3beta-hydroxylase gene expression in Pisum sativum. Plant Growth Regulation 42(1): 49-54, 2004

Gibberellins in dark grown and red light grown shoots of dwarf and tall cultivars of pisum sativum the quantification metabolism and biological activity of gibberellins in progress no. 9 and alaska. Planta (Heidelberg) 168(1): 119-129, 1986

Studies on gibberellins in shoots of light-grown peas. II. The metabolism of tritiated gibberellin A9 and gibberellin A20 by light- and dark-grown shoots of dwarf Pisum sativum var. Meteor. Plant Science Letters 3(3): 207-212, 1974

Gibberellins in dark- and red-light-grown shoots of dwarf and tall cultivars of Pisum sativum: The quantification, metabolism and biological activity of gibberellins in Progress No. 9 and Alaska. Planta 168(1): 119-129, 1986

Gibberellins in dark- and red-light-grown shoots of dwarf and tall cultivars of Pisum sativum: The quantification, metabolism and biological activity of gibberellins in Progress no. 9 and Alaska. Planta 168(1): 119-129, 1986

Use of an Acylcyclohexanedione Growth Retardant, LAB 198 999, to Determine Whether Gibberellin A(20) Has Biological Activity per se in Dark-Grown Dwarf (le) Seedlings of Pisum sativum. Plant Physiology 100(2): 651-654, 1992

Use of an Acylcyclohexanedione Growth Retardant, Lab 198 999, to Determine Whether Gibberellin A20 Has Biological Activity per se in Dark-Grown Dwarf (le5839) Seedlings of Pisum sativum. Plant Physiology 100(2): 651-654, 1992

Use of an Acylcyclohexanedione Growth Retardant, Lab 198 999, to Determine Whether Gibberellin$ text{A}_{20}$Has Biological Activity per se in Dark-Grown Dwarf ($le^{5839}$) Seedlings of Pisum sativum. Plant Physiology 100(2): 651-654, 1992

Shoot elongation in Lathyrus odoratus L.: Gibberellin levels in light- and dark-grown tall and dwarf seedlings. Planta 187(1): 10-13, 1992

Effects of two growth retardant and gibberellins a 1 and a 20 on light and dark grown seedlings of tall and dwarf pea. Plant Physiology 96(1 Suppl.): 157, 1991

Rnase in pea pisum sativum seedlings grown in the dark and in the light dark regimes. Studii si Cercetari de Biochimie 19(1): 19-24, 1976

Nucleic acids in pea d pisum sativum d seedlings grown in the dark and in the light dark regimes. Studii si Cercetari de Biochimie 14(1): 5-12, 1971

Homoserine synthesis in dark-grown and light-grown seedlings of Pisum sativum. New Phytologist 100(2): 157-162, 1985

A comparative analysis of the root systems of light grown and dark grown seedlings of pea pisum sativum cultivar alaska. Plant Science 75(1): 117-122, 1991

Interconversion of gibberellin A20 to gibberellin A29 by etiolated seedlings and germinating seeds of dwarf Pisum sativum. Phytochemistry 13(5): 793-796, 1974