Reference "Characterization of a rice gene showing organ-specific expression in response to salt stress and drought"

Reference ID

596

Title

Characterization of a rice gene showing organ-specific expression in response to salt stress and drought

Source

The Plant cell, 1990, vol. 2, pp. 19-27

Authors (7)

Claes-B	Dekeyser-R
Villarroel-R	Van_den_Bulcke-M
Bauw-G	Montagu-M-V
Caplan-A

Abstract

Protein changes induced by salinity stress were investigated in the roots of the
salt-sensitive rice cultivar Taichung native 1. We found eight proteins to be
induced and obtained partial sequences of one with a molecular mass of 15
kilodaltons and an isoelectric point of 5.5. Using an oligonucleotide probe
based on this information, a cDNA clone, salT, was selected and found to contain
an open reading frame coding for a protein of 145 amino acid residues. salT mRNA
accumulates very rapidly in sheaths and roots from mature plants and seedlings
upon treatment with Murashige and Skoog salts (1%), air drying, abscisic acid
(20 microM), polyethylene glycol (5%), sodium chloride (1%), and potassium
chloride (1%). Generally, no induction was seen in the leaf lamina even when the
stress should affect all parts of the plant uniformly. The organ-specific
response of salT is correlatable with the pattern of Na+ accumulation during
salt stress.