Iron-induced nitric oxide leads to an increase in the expression of ferritin during the senescence of Lotus japonicus nodules

Sirinapa Chungopast, Mallika Duangkhet, Shigeyuki Tajima, Jian Feng Ma, Mika Nomura

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Iron is an essential nutrient for legume-rhizobium symbiosis and accumulates abundantly in the nodules. However, the concentration of free iron in the cells is strictly controlled to avoid toxicity. It is known that ferritin accumulates in the cells as an iron storage protein. During nodule senescence, the expression of the ferritin gene, Ljfer1, was induced in Lotus japonicus. We investigated a signal transduction pathway leading to the increase of Ljfer1 in the nodule. The Ljfer1 promoter of L. japonicus contains a conserved Iron-Dependent Regulatory Sequence (IDRS). The expression of Ljfer1 was induced by the application of iron or sodium nitroprusside, which is a nitric oxide (NO) donor. The application of iron to the nodule increased the level of NO. These data strongly suggest that iron-induced NO leads to increased expression of Ljfer1 during the senescence of L. japonicus nodules.

Original languageEnglish
Pages (from-to)40-46
Number of pages7
JournalJournal of Plant Physiology
Volume208
DOIs
Publication statusPublished - Jan 1 2017

Fingerprint

Lotus corniculatus var. japonicus
ferritin
Ferritins
nitric oxide
Nitric Oxide
Iron
iron
regulatory sequences
Rhizobium
Symbiosis
Nitric Oxide Donors
Nitroprusside
storage proteins
Loteae
Fabaceae
symbiosis
signal transduction
Signal Transduction
legumes
promoter regions

Keywords

  • Ferritin
  • Lotus japonicus
  • Mesorhizobium loti
  • Nitric oxide
  • Nodule senescence

ASJC Scopus subject areas

  • Physiology
  • Agronomy and Crop Science
  • Plant Science

Cite this

Iron-induced nitric oxide leads to an increase in the expression of ferritin during the senescence of Lotus japonicus nodules. / Chungopast, Sirinapa; Duangkhet, Mallika; Tajima, Shigeyuki; Ma, Jian Feng; Nomura, Mika.

In: Journal of Plant Physiology, Vol. 208, 01.01.2017, p. 40-46.

Research output: Contribution to journalArticle

Chungopast, Sirinapa ; Duangkhet, Mallika ; Tajima, Shigeyuki ; Ma, Jian Feng ; Nomura, Mika. / Iron-induced nitric oxide leads to an increase in the expression of ferritin during the senescence of Lotus japonicus nodules. In: Journal of Plant Physiology. 2017 ; Vol. 208. pp. 40-46.
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AU - Ma, Jian Feng

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