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US7411059: Production of syringyl lignin in gymnosperms


Filing Information

Inventor(s) Vincent L. Chiang · Daniel T. Carraway · Richard H. Smeltzer ·
Assignee(s) Arborgen, LLC ·
Attorney/Agent(s) Foley & Lardner LLP ·
Primary Examiner Stuart F. Baum ·
Application Number US10681878
Filing date 10/09/2003
Issue date 08/12/2008
Prior Publication Data
Predicted expiration date 03/27/2018
Patent term adjustment 101
U.S. Classifications 536/241  ·
International Classifications C12N1529  ·
Kind CodeB2
This application is a continuation of U.S. application Ser. No. 09/796,256, filed on Feb. 28, 2001 (now abandoned), which is a divisional of U.S. application Ser. No. 08/991,677, filed on Dec. 16, 1997 (now U.S. Pat. No. 6,252,135, issued on Jun. 26, 2001), claiming priority from Provisional Application No. 60/033,381, filed on Dec. 16, 1996.
1 Claims, 33 Drawings


The present invention relates to a method for producing syringyl lignin in gymnosperms. The production of syringyl lignin in gymnosperms is accomplished by genetically transforming a gymnosperm genome, which does not normally contain genes which code for enzymes necessary for production of syringyl lignin, with DNA which codes for enzymes found in angiosperms associated with production of syringyl lignin. The expression of the inserted DNA is mediated using host promoter regions in the gymnosperm. In addition, genetic sequences which code for gymnosperm lignin anti-sense mRNA may be incorporated into the gymnosperm genome in order to suppress the formation of the less preferred forms of lignin in the gymnosperm such as guaiacyl lignin.

Independent Claims | See all claims (1)

  1. 1. An isolated promoter comprising SEQ ID NO: 10.

References Cited

U.S. Patent Documents

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Other Publications

Benfey et al (1990, Science 250:959-966).*
Benfey et al (1989, EMBO J, 8(8):2195-2202).*
Kojima et al (1994, The Plant Journal 6(4):591-596).*
Voo et al (1995 Plant Physiology 108:85-97).*
“cDNA cloning, sequence analysis and seasonal expression of lignin-bispecific caffeic acid/5-hydroxyferulic acid O-methyltransferase of aspen”, by Robert C. Bugos, et al., Plant Molecular Biology 17: 1203-1215, 1991.
“Genetric engineering of wood”, by Ross Whetten, et al., Forest Ecology and Management, 43 (1991) 301-316, Elsevier Science Publishers B. V., Amsterdam.
“Logger and Lumberman” from Trailer Director Portable Sawmills & Firewood Processors, Dec. 15, 1995.
* cited by examiner

Referenced By

The current document is not referenced by other documents.

Patent Family

Document NumberAssigneeInventorsIssue/Pub Date
US20050076403 Vincent Chiang et al. Apr 2005
US7411059 Arborgen, LLC Vincent L. Chiang et al. Aug 2008