DNA encoding a plant lipase, transgenic plants and a method for controlling senescence in plants
First Claim
Patent Images
1. An isolated DNA molecule encoding senescence-induced lipase, wherein the DNA molecule has at least 90% sequence similarity to SEQ ID NO:
- 1, or SEQ ID NO;
18, and wherein the DNA molecule encodes an amino acid sequence that has senescence-induced lipase activity of SEQ ID NO;
2 or SEQ ID NO;
19.
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Abstract
Regulation of expression of senescence in plants is achieved by integration of a gene or gene fragment encoding senescence-induced lipase into the plant genome in antisense orientation. The carnation and Arabidopsis genes encoding senescence-induced lipase are identified and the nucleotide sequences are used to modify senescence in transgenic plants.
40 Citations
51 Claims
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1. An isolated DNA molecule encoding senescence-induced lipase, wherein the DNA molecule has at least 90% sequence similarity to SEQ ID NO:
- 1, or SEQ ID NO;
18, and wherein the DNA molecule encodes an amino acid sequence that has senescence-induced lipase activity of SEQ ID NO;
2 or SEQ ID NO;
19. - View Dependent Claims (3)
- 1, or SEQ ID NO;
-
2. An isolated DNA molecule encoding senescence-induced lipase wherein said DNA molecule comprises SEQ ID NO:
- 1.
-
4. An isolated DNA molecule encoding senescence-induced lipase wherein said DNA molecule comprises SEQ ID NO:
- 18.
-
5. A vector for transformation of plant cells comprising
(a) an antisense polynucleotide complementary to SEQ ID NO: - 1, or SEQ D NO;
18, and(b) regulatory sequences operatively linked to the antisense polynucleotide such that the antisense polynucleotide is expressed in a plant cell into which it is transformed. - View Dependent Claims (6, 7, 8, 9, 10, 34, 38, 51)
- 1, or SEQ D NO;
-
11. An isolated antisense polynucleotide encoding an RNA molecule, wherein said polynucleotide has at least 90% sequence similarity to the complement of SEQ ID NO:
- 1, or SEQ ID NO;
18, wherein the polynucleotide inhibits expression of an endogenous senescence-induced lipase gene when expressed in a plant cell. - View Dependent Claims (12, 13, 14, 15, 16, 36, 37)
- 1, or SEQ ID NO;
-
17. A vector comprising
(a) a DNA molecule encoding senescence-induced lipase, wherein the DNA molecule has at least 90% sequence similarity to SEQ ID NO: - 1 or SEQ ID NO;
18; and
(b) regulatory sequences operatively linked to the DNA molecule, (c) wherein the DNA molecule encodes an amino acid sequence that has senescence-induced lipase activity of SEQ ID NO;
2 or SEQ ID NO;
19.- View Dependent Claims (18, 35)
- 1 or SEQ ID NO;
-
19. A method for inhibiting expression of an endogenous senescence-induced lipase in a plant, said method comprising
(1) integrating into a plant genome a vector comprising (A) an antisense polynucleotide having at least 90% sequence similarity to the complement of SEQ ID NO: - 1 or SEQ ID NO;
18; and
(B) regulatory sequences operatively linked to the antisense polynucleotide such that the antisense polynucleotide is expressed; and
(2) growing said plant, whereby the antisense polynucleotide is transcribed and binds to an RNA transcript of an endogenous senescence-induced lipase gene, whereby expression of the senescence-induced lipase gene is inhibited. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
- 1 or SEQ ID NO;
-
31. A method for inhibiting the expression of an endogenous senescence-induced lipase gene or genes in a plant cell, said method comprising
(1) integrating into a genome of at least one cell of the plant a vector comprising (A) an isolated DNA molecule encoding an exogenous senescence-induced lipase, wherein the DNA molecule comprises SEQ ID NO: - 1 or SEQ ID NO;
18, or wherein the DNA molecule has at least 90% sequence similarity to SEQ ID NO;
1 or SEQ ID NO;
18, and wherein the DNA molecule encodes an amino acid sequence that has senescene-induced lipase activity of SEQ ID NO;
2 or SEQ ID NO;
19; and
(B) regulatory sequences operatively linked to the DNA molecule such that the DNA molecule is transcribed, and (2) growing said plant, wherein the endogenous senescence-induced lipase is co-suppressed. - View Dependent Claims (32)
- 1 or SEQ ID NO;
-
33. A method of delaying age-related senescence and environmental stress-related senescence in a plant, said method comprising
(1) integrating a vector into a plant genome, the vector comprising (A) an antisense polynucleotide having at least 90% sequence similarity to the complement of SEQ ID NO: - 1 or SEQ ID NO;
18, and(B) regulatory sequences operatively linked to the antisense polynucleotide such that the antisense polynucleotide is expressed; and
(2) growing said plant, whereby the antisense polynucleotide is transcribed and binds to an RNA transcript of an endogenous senescence-induced lipase gene, whereby expression of the senescence-induced lipase gene is inhibited, (3) whereby age-related and environment stress-related senescence is delayed.
- 1 or SEQ ID NO;
-
39. A plant and progeny thereof, wherein the plant is derived from a cell having inhibited or reduced expression of senescence-induced lipase, wherein said cell is produced by
(1) integrating into a cell genome a vector comprising (A) an antisense polynucleotide having at least 90% sequence similarity to the complement of SEQ ID NO: - 1 or SEQ ID NO;
18; and
wherein the polynucleotide inhibits expression of an endogenous senescence-induced lipase gene, and(B) regulatory sequences operatively linked to the antisense polynucleotide such that the antisense polynucleotide is expressed; and
(2) growing said plant, whereby said antisense polynucleotide is transcribed and binds an RNA transcript of an endogenous senescence induced lipase gene whereby expression of said senescence-induced lipase gene is inhibited; and
(3) wherein the plant and progeny thereof comprise the vector. - View Dependent Claims (40, 41)
- 1 or SEQ ID NO;
-
42. A method of inhibiting seed aging, said method comprising
(1) integrating into a plant genome a vector comprising (A) an antisense polynucleotide having at least 90% sequence similarity to the complement SEQ ID NO: - 1 or SEQ ID NO;
18; and
(B) regulatory sequences operatively linked to the antisense polynucleotide; and
(2) growing said plant, whereby said antisense polynucleotide is transcribed and binds to an RNA transcript of an endogenous senescence-induced lipase gene whereby expression of said senescence-induced lipase gene is inhibited, (3) whereby seed aging is inhibited.
- 1 or SEQ ID NO;
-
43. A method of increasing seed yield from a plant, said method comprising
(1) integrating into a plant genome a vector comprising (A) an antisense polynucleotide having at least 90% sequence similarity to the complement of SEQ ID NO: - 1 or SEQ ID NO;
18; and
(B) regulatory sequences operatively linked to the antisense polynucleotide; and
(2) growing said plant, whereby said antisense polynucleotide is transcribed and binds to an RNA transcript of an endogenous senescence-induced lipase gene whereby expression of said senescence-induced lipase gene is inhibited, (3) whereby seed yield is increased.
- 1 or SEQ ID NO;
-
44. A vector comprising
(a) a DNA molecule encoding a senescence-induced lipase, wherein the DNA molecule comprises SEQ ID NO: - 1 or SEQ ID NO;
18; and
(b) regulatory sequences operatively linked to the DNA molecule.
- 1 or SEQ ID NO;
-
45. A method for inhibiting expression of an endogenous senescence-induced lipase in a plant, said method comprising
(1) integrating into a plant genome a vector comprising (A) an antisense polynucleotide complementary to a DNA molecule encoding the endogenous senescence-induced lipase, wherein the DNA molecule encoding the endogenous senescence-induced lipase comprises SEQ ID NO: - 1 or SEQ ID NO;
18; and
(B) regulatory sequences operatively linked to the antisense polynucleotide such that the antisense polynucleotide is expressed; and
(2) growing said plant, whereby the antisense polynucleotide is transcribed and binds to an RNA transcript of said DNA molecule, whereby expression of the DNA molecule is inhibited.
- 1 or SEQ ID NO;
-
46. A method for inhibiting the expression of an endogenous senescence-induced lipase gene or genes in a plant, said method comprising
(1) integrating into a genome of at least one cell of the plant a vector comprising (A) an isolated DNA molecule encoding exogenous senescence-induced lipase comprising SEQ ID NO: - 1 or SEQ ID NO;
18; and
(B) regulatory sequences operatively linked to the DNA molecule such that the DNA molecule is transcribed, and (2) growing said plant, wherein the endogenous senescence-induced lipase is co-suppressed.
- 1 or SEQ ID NO;
-
47. A method of altering age-related senescence and environmental stress-related senescence in a plant, said method comprising
(1) integrating a vector into a plant genome, the vector comprising (A) an antisense polynucleotide complementary to SEQ ID NO: - 1 or SEQ ID NO;
18; and
(B) regulatory sequences operatively linked to the antisense polynucleotide such that the antisense polynucleotide is expressed; and
(2) growing said plant, whereby the antisense polynucleotide is transcribed and binds to an RNA transcript of an endogenous senescence-induced lipase gene, whereby expression of the senescence-induced lipase gene is inhibited.
- 1 or SEQ ID NO;
-
48. A plant or progeny thereof, wherein the plant is regenerated from a cell having inhibited or reduced expression of senescence-induced lipase, wherein said cell is produced by
(1) integrating into the cell genome a vector comprising (A) an antisense polynucleotide complementary to SEQ ID NO: - 1 or SEQ ID NO;
18; and
(B) regulatory sequences operatively linked to the antisense polynucleotide such that the antisense polynucleotide is expressed; and
(2) growing said plant, whereby said antisense polynucleotide is transcribed and binds an RNA transcript of an endogenous senescence induced lipase gene whereby expression of said senescence-induced lipase gene is inhibited; and
(3) wherein the plant or progeny thereof comprise the vector.
- 1 or SEQ ID NO;
-
49. A method of inhibiting seed aging, said method comprising
(1) integrating into a plant genome a vector comprising (A) an antisense polynucleotide complementary to SEQ ID NO: - 1 or SEQ ID NO;
18; and
(B) regulatory sequences operatively linked to the antisense polynucleotide; and
(2) growing said plant, whereby said antisense polynucleotide is transcribed and binds to an RNA transcript of an endogenous senescence-induced lipase gene whereby expression of said senescence-induced lipase gene is inhibited, (3) whereby seed aging is inhibited.
- 1 or SEQ ID NO;
-
50. A method of increasing seed yield from a plant, said method comprising
(1) integrating into a plant genome a vector comprising (A) an antisense polynucleotide complementary to SEQ ID NO: - 1 or SEQ ID NO;
18; and
(B) regulatory sequences operatively linked to the antisense polynucleotide; and
(2) growing said plant, whereby said antisense polynucleotide is transcribed and binds to an RNA transcript of an endogenous senescence-induced lipase gene whereby expression of said senescence-induced lipase gene is inhibited, (3) whereby seed yield is increased.
- 1 or SEQ ID NO;
Specification