Molecular cloning of a metallothionein-like gene from Nicotiana glutinosa L. and its induction by wounding and tobacco mosaic virus infection

Doil Choi, Hong Mo Kim, Hae Keun Yun, Jong A. Park, Woo Taek Kim, Song Hae Bok

Research output: Contribution to journalArticle

132 Citations (Scopus)

Abstract

The cloning and characterization of genes expressed in plant disease resistance could be an initial step toward understanding the molecular mechanisms of disease resistance. A metallothionein-like gene that is inducible by tobacco mosaic virus and by wounding was cloned in the process of subtractive cloning of disease resistance-response genes in Nicotiana glutinosa. One 530-bp cDNA clone (KC9-10) containing an open reading frame of 81 amino acids was characterized. Genomic Southern blot hybridization with the cDNA probe revealed that tobacco metallothionein-like genes are present in few or in one copy per diploid genome. Northern blot hybridization detected strong induction of a 0.5-kb mRNA by wounding and tobacco mosaic virus infection, but only mild induction was detected when copper was tested as an inducer. Methyl jasmonate, salicylic acid, and ethylene were also tested as possible inducers of this gene, but they had no effect on its expression. The possible role of this gene in wounded and pathogen-stressed plants is discussed.

Original languageEnglish
Pages (from-to)353-359
Number of pages7
JournalPlant Physiology
Volume112
Issue number1
DOIs
Publication statusPublished - 1996 Jan 1

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Nicotiana glutinosa
Tobacco Mosaic Virus
Tobacco mosaic virus
Metallothionein
metallothionein
Molecular Cloning
Virus Diseases
Tobacco
molecular cloning
Disease Resistance
infection
Genes
disease resistance
genes
Organism Cloning
hybridization
Complementary DNA
Plant Diseases
Salicylic Acid
methyl jasmonate

All Science Journal Classification (ASJC) codes

  • Physiology
  • Genetics
  • Plant Science

Cite this

Choi, Doil ; Kim, Hong Mo ; Yun, Hae Keun ; Park, Jong A. ; Kim, Woo Taek ; Bok, Song Hae. / Molecular cloning of a metallothionein-like gene from Nicotiana glutinosa L. and its induction by wounding and tobacco mosaic virus infection. In: Plant Physiology. 1996 ; Vol. 112, No. 1. pp. 353-359.
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Molecular cloning of a metallothionein-like gene from Nicotiana glutinosa L. and its induction by wounding and tobacco mosaic virus infection. / Choi, Doil; Kim, Hong Mo; Yun, Hae Keun; Park, Jong A.; Kim, Woo Taek; Bok, Song Hae.

In: Plant Physiology, Vol. 112, No. 1, 01.01.1996, p. 353-359.

Research output: Contribution to journalArticle

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