The yeast polyadenylate-binding protein (PAB1) gene acts as a disease lesion mimic gene when expressed in plants

The yeast polyadenylate-binding protein (PAB1) gene acts as a disease lesion mimic gene when... We have expressed the gene (PAB1) encoding the yeast polyadenylate-binding protein (Pab1p) in tobacco. Plants that accumulate the Pab1p display a range of abnormalities, ranging from a characteristic chlorosis in leaves to a necrosis and large inhibition of growth. The severity of these abnormalities reflects the levels of yeast Pab1p expression in the transgenic plants. In contrast, no obvious differences could be seen in callus cultures between the transgene and vector control. Plants that display PAB-associated abnormalities were resistant to a range of plant pathogens, and had elevated levels of expression of a pathogenesis-related gene. These two properties – impairment of growth and induction of defense responses – indicate that the yeast PAB1 gene can act as a disease lesion mimic gene in plants. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Plant Molecular Biology Springer Journals

The yeast polyadenylate-binding protein (PAB1) gene acts as a disease lesion mimic gene when expressed in plants

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Publisher
Kluwer Academic Publishers
Copyright
Copyright © 2000 by Kluwer Academic Publishers
Subject
Life Sciences; Biochemistry, general; Plant Sciences; Plant Pathology
ISSN
0167-4412
eISSN
1573-5028
D.O.I.
10.1023/A:1006354010997
Publisher site
See Article on Publisher Site

Abstract

We have expressed the gene (PAB1) encoding the yeast polyadenylate-binding protein (Pab1p) in tobacco. Plants that accumulate the Pab1p display a range of abnormalities, ranging from a characteristic chlorosis in leaves to a necrosis and large inhibition of growth. The severity of these abnormalities reflects the levels of yeast Pab1p expression in the transgenic plants. In contrast, no obvious differences could be seen in callus cultures between the transgene and vector control. Plants that display PAB-associated abnormalities were resistant to a range of plant pathogens, and had elevated levels of expression of a pathogenesis-related gene. These two properties – impairment of growth and induction of defense responses – indicate that the yeast PAB1 gene can act as a disease lesion mimic gene in plants.

Journal

Plant Molecular BiologySpringer Journals

Published: Oct 16, 2004

References

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