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Tissue culture-free ("ex vitro") transformation method for trees

09.22.26 | Research Foundation for the State University of New York

A method for introducing new genetic traits to woody plants that does not require tissue culture (in vitro) procedures.

Background :

Genetic engineering (transformation) is a powerful tool for introducing new traits to plants. However, it generally requires a set of tissue culture protocols that can be unique to each plant species for which it is applied. Some plant species, including commercially valuable woody plants such as shrub willow (Salix spp.), are recalcitrant to tissue culture and, therefore, have not previously been amenable to genetic engineering.

Technology Overview :

This technology introduces a novel "ex vitro" transformation method that utilizes Agrobacterium rhizogenes to genetically modify the roots of woody plants without the necessity for tissue culture. This approach initiates transformation by directly infecting the roots, after which transformed shoots can be identified and selected. These shoots are grown into fully transgenic plants exhibiting uniform genetic modification. Initially demonstrated with Poplar, a model woody species, the method is being expanded to other commercially valuable plants, such as shrub willow. By eliminating the labor-intensive, technically challenging tissue culture stage, this method accelerates the development of genetically engineered trees. Its adaptability to species traditionally resistant to transformation marks a significant advancement in plant biotechnology. The approach is both cost-effective and scalable, providing a practical solution for producing transgenic trees at higher throughput and enabling broader applications across the forestry and agricultural sectors.

Advantages :

Applications :

Intellectual Property Summary : Patent Pending

Stage of Development : TRL 5

Licensing Status : This technology is available for licensing.

About the Research Foundation for the State University of New York:

As the nation's largest research foundation supporting the nation's largest public university system, The Research Foundation for SUNY powers research and innovation to address today's most pressing problems and shape a better future for generations to come. The Research Foundations supports SUNY researchers leading the way globally in AI for the public good, quantum technologies, next-generation semiconductors, biotech and medicine, energy and climate solutions, and more. The Research Foundation for SUNY is a private, nonprofit educational corporation that is tax-exempt under Internal Revenue Code (IRC) Section 501(c)(3). To learn more, please visit us online at rfsuny.org .

About the State University of New York

The State University of New York is the largest comprehensive system of higher education in the United States, and more than 95 percent of all New Yorkers live within 30 miles of any one of SUNY’s 64 colleges and universities. Across the system, SUNY has four academic health centers, five hospitals, four medical schools, two dental schools, a law school, the country’s oldest school of maritime, the state's only college of optometry, 12 Educational Opportunity Centers, over 30 ATTAIN digital literacy labs, and manages one US Department of Energy National Laboratory. In total, SUNY serves about 1.7 million students across its portfolio of credit- and non-credit-bearing courses and programs, continuing education, and community outreach programs. SUNY oversees nearly a quarter of academic research in New York. Research expenditures system-wide are nearly $1.5 billion in fiscal year 2025, including significant contributions from students and faculty. There are more than three million SUNY alumni worldwide, and annually one in three New Yorkers who earn a college degree is a SUNY alum. To learn more about how SUNY creates opportunities, visit suny.edu .

Keywords

Contact Information

Matthew Sheiffer
Research Foundation for the State University of New York
matthew.sheiffer@rfsuny.org

Source

This article is based on a news release from Research Foundation for the State University of New York. BrightSurf curates and republishes science news from research institutions worldwide; the original release is linked below.

How to Cite This Article

APA:
Research Foundation for the State University of New York. (2026, September 22). Tissue culture-free ("ex vitro") transformation method for trees. Brightsurf News. https://www.brightsurf.com/news/LMJYJ9VL/tissue-culture-free-ex-vitro-transformation-method-for-trees.html
MLA:
"Tissue culture-free ("ex vitro") transformation method for trees." Brightsurf News, Sep. 22 2026, https://www.brightsurf.com/news/LMJYJ9VL/tissue-culture-free-ex-vitro-transformation-method-for-trees.html.