Multicellular living organisms and unmodified parts thereof and – Method of introducing a polynucleotide molecule into or...
Patent
1997-05-02
1999-07-13
Robinson, Douglas W.
Multicellular living organisms and unmodified parts thereof and
Method of introducing a polynucleotide molecule into or...
800278, 800289, 8003174, 536 236, 435419, C12N 504, C12N 1229, A01H 500
Patent
active
059229292
ABSTRACT:
All organisms respond to elevated temperature by specifically inducing the expression of a set of new proteins; the "heat shock proteins" or "Hsps." Although this response has been known for over thirty years, the specific role of individual heat shock proteins in the overall response is still largely unknown. All organisms have a basal level of thermotolerance--an organism-specific temperature threshold above which they die. The advantage to increased thermotolerance in a plant is clear--increased thermotolerance improves crop yield in particularly hot growing seasons, and expands the geographic area where a particular crop can be grown. The present invention provides a method of increasing thermotolerance in plants comprising transforming plant cells with a vector which over-expresses the carrot Hsp17.7 gene. This is the first demonstration of enhancement of plant thermotolerance through the over-expression of a low molecular weight heat shock protein. Additionally, the fact that the enhanced thermotolerance effect can be transferred from one species (carrot) to a completely unrelated species (tomato) is highly significant, as it demonstrates that this gene construct is able to confer enhanced thermotolerance to a wide range of plant species.
REFERENCES:
Matzke and Matzke. Plant Physiol. 1995. vol. 107: 679-685.
Finnegan and McElory, 1994. Bio/Technology. vol. 12: 883-888.
Napoli et al. The Plant Cell. 1989. vol. 2: 279-289.
Carvalho et al. The EMBO Journal. 1992. vol. 11: 5995-5602.
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Vierling. Ann. rev. of Plant Physiol. 1991. vol. 42: 579-620.
Darwish et al. Plant Molecular Biology. 1991. vol. 16: 729-731.
Malik Mukesh K.
Slovin Janet P.
Zimmerman J. Lynn
Adler Benjamin Aaron
Robinson Douglas W.
University of Maryland at Baltimore County
Zaghmout Ousama M-Faiz
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