David B Karnosky

US Patent:

6858776, Feb 22, 2005

Filed:

Mar 17, 2000

Appl. No.:

09/936869

Inventors:

Gopi Krishna Podila - Houghton MI, US
Jun-Jun Liu - Houghton MI, US
David F. Karnosky - Chassell MI, US

Assignee:

Carter Holt Harvey Limited - Manakau City
Rubicon IP Limited - Auckland
Michigan Technological University - Houghton MI

International Classification:

C12N015/82
C12N015/29
C12N015/56
C12N005/04
A01H005/00

US Classification:

800287, 800278, 800286, 800288, 800290, 800319, 800323, 435199, 435419, 536 236, 536 241, 536 245

Abstract:

This invention relates to plants having modified reproductive capacity. In particular, it relates to a plant reproductive tissue specific promoter, the PrAG1 promoter isolated from , and its use in promoting transcription/expression of associated sequences in plant reproductive tissue, including for the purpose of producing plants which have diminished reproductive capacity or which are sterile.

US Patent:

7057087, Jun 6, 2006

Filed:

Jul 26, 2002

Appl. No.:

10/206653

Inventors:

Gopi Krishna Podila - Houghton MI, US
Leland James Cseke - Madison AL, US
Banalata Sen - Durham NC, US
David F. Karnosky - Chassell MI, US

Assignee:

Board of Control of Michigan Technological University - Houghton WI

International Classification:

C12N 15/29
C12N 15/82
C12N 15/87
C12N 5/04
A01H 5/00

US Classification:

800278, 800290, 800298, 8003173, 800287, 800300, 536 231, 536 236, 4353201, 435410, 435419, 435468

Abstract:

The present invention provides compositions and methods for producing a transgenic plant that exhibits altered characteristics resulting from over expression or under expression of a novel polypeptide PtM3 or its homolog PtM4. The altered characteristics resulting from over-expression include at least one of the ability to convert axillary meristem to floral meristem; to accelerate flowering i. e. , early flowering; to increase fruit production; to increase nut production; to increase seed output; to increase branching; to increase flower production; to increase fruit yield; to increase flower yield and a combination thereof. The altered characteristics resulting from suppressed expression include at least one of complete sterility; partial sterility (sterility of only one sex of a bisexual plant); reduced pollen production; decreased flowering; increased biomass and combinations thereof. Furthermore, once the transgenic plant is sterile, additional exogenous sequences may be incorporated into the sterile plant genome, resulting in other desired plant characteristics. Related promoter, gene constructs, methods, antibodies and kits are also provided.

US Patent:

20030028919, Feb 6, 2003

Filed:

Jan 24, 2002

Appl. No.:

10/057609

Inventors:

David Karnosky - Chassell MI, US
Gopi Podila - Houghton MI, US
Bixia Xiang - Houghton MI, US

International Classification:

A01H007/00
C12N005/04
A01N025/00

US Classification:

800/278000, 435/419000, 504/116100, 800/319000

Abstract:

The present invention is directed to transgenic trees having increased resistance to an imidazolinone herbicide. In particular, the present invention relates to larch and poplar trees transformed with an altered AHAS gene, wherein such transformation results in the trees' increased resistance to an imidazolinone herbicide.

US Patent:

PP69833, Aug 15, 1989

Filed:

Feb 1, 1988

Appl. No.:

7/151001

Inventors:

David F. Karnosky - Chassell MI

Assignee:

Central Park Conservatory - New York NY
Arthur Ross Foundation, Inc. - New York NY

International Classification:

A01H 500

US Classification:

Plt 51

Abstract:

A new and distinct variety of elm tree which produces leaves which are somewhat larger than other Chinese Elm cultivars with which it is most closely similar and which further exhibits cold hardiness to Zone 6 under typical environmental conditions.