Gene expression in physically impeded maize roots /

a relatively conserved gene family exists in maize. The CDNA

Bibliographic Details
Main Author: Huang, Ying-Fei, 1970-
Format: Thesis eBook
Language:English
Published: [Place of publication not identified] : [publisher not identified] ; 1996.
Subjects:
Online Access:Link to OAKTrust copy
Description
Summary:a relatively conserved gene family exists in maize. The CDNA
about 33% by 10 to 30 min physical impedance, is identical to
acid residues which showed 97% similarity at the nucleic acid
Arabidopsis, and LP2 induced by drought stress in pine, had
characterized further. cDNA PIIGI contains 678 hp with an
expression was strongly induced by the 10 min physical
extracted from stressed and non-stressed maize roots tips.
found duplicated loci in maize but single loci in rice. The
from mMRNA from a 10 min physical impedance treatment of
function. Genomic Southern hybridization using cDNApIIG2
high homology with the RNA in maize root tips, but they did
hybridized to mRNA from maize root tips. The results showed
impedance treatment and genomic Southern analysis showed that
induced in a 10 min physical impedance treatment, were
level to maize root cortical cell delineating protein.
maize roots tips and was differentially screened with
maize roots tips. Second, a cDNA library was constructed
Northern analysis with cDNA PIIGI as a probe showed that the
not reveal an inducible pattern of expression in the impeded
open reading frame which specifies a polypeptide of 129 amino
physical impedance. First, cDNA clones induced by mechanical
pIIG2 has a nucleotide sequence of 830 bp with an open
radioactive labeled cDNA probes synthesized using mRNA
reading frame which specifies a polypeptide of 210 amino acid
residues, but in a search of the GENBANK database it did not
responding to a 10 min physical impedance stress. The first
search.
show significant homology with any identified gene of known
stress or drought stress of other plant species were
that only two clones, TCH1 induced by wind stress in
the partial sequence of maize "calreticulin!' gene by GENBANK
third cDNA clone pIRG3, 800 bp, whose expression was reduced
Three clones, PIIGI, pIIG2, and pIRG3, were identified as
Two approaches were used to search for genes which respond to
two cDNA clones (PIIGI and pIIG2), whose expressions were
Item Description:"Major subject: Plant Physiology".
Vita.
Physical Description:x, 86 leaves : illustrations ; 28 cm.
Also available online.
Issued also on microfiche from Lange Micrographics.
Bibliography:Includes bibliographical references.