Title: Use of NAP gene to manipulate leaf senescence in plants

Abstract

The present invention discloses transgenic plants having an altered level of NAP protein compared to that of a non-transgenic plant, where the transgenic plants display an altered leaf senescence phenotype relative to a non-transgenic plant, as well as mutant plants comprising an inactivated NAP gene, where mutant plants display a delayed leaf senescence phenotype compared to that of a non-mutant plant. The present invention also discloses methods for delaying leaf senescence in a plant, as well as methods of making a mutant plant having a decreased level of NAP protein compared to that of a non-mutant plant, where the mutant plant displays a delayed leaf senescence phenotype relative to a non-mutant plant. Methods for causing precocious leaf senescence or promoting leaf senescence in a plant are also disclosed. Also disclosed are methods of identifying a candidate plant suitable for breeding that displays a delayed leaf senescence and/or enhanced yield phenotype.

Inventors:

Gan, Susheng; Guo, Yongfeng

Issue Date:

Tue Apr 16 00:00:00 EDT 2013

Research Org.:

Cornell Univ., Ithaca, NY (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1083449

Patent Number(s):

8420890

Application Number:

12/294,593

Assignee:

Cornell Research Foundation, Inc. (Ithaca, NY)

Patent Classifications (CPCs):

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07K - PEPTIDES

C - CHEMISTRY C12 - BIOCHEMISTRY C12N - MICROORGANISMS OR ENZYMES

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C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07K - PEPTIDES

C07K14/415 - from plants

C - CHEMISTRY C12 - BIOCHEMISTRY C12N - MICROORGANISMS OR ENZYMES

C12N15/8262 - {involving plant development
C12N15/8266 - {Abscission

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DOE Contract Number:  

FG02-02ER15341

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

59 BASIC BIOLOGICAL SCIENCES