ISU
Home
ISURF/OIPTT
Home
ISURFtech
Home
Advanced
Search
RSS
Feeds
Enhanced Plant Growth through Mobile RNA Signals
Category(s):
For Information, Contact:
Dario Valenzuela
Senior Commercialization Manager, Life Sciences
515-294-4740
licensing@iastate.edu
Web Published:
5/13/2015
ISURF #
3056
Summary:
Iowa State University researchers have identified mobile RNAs in potatoes whose overexpression enhances plant growth.

Development Stage:
Transgenic lines of potatoes have been shown to produce more tubers at a faster rate than controls, and ISU is seeking partners interested in commercializing this technology.

Description:
Plants have evolved intricate signaling pathways to regulate growth and other physiological processes. Light quality and duration play an important role in providing external cues perceived by the plant. Photoperiod is an example of one such external signal that controls important physiological processes like flowering, dormancy, germination, senescence, and tuber formation. During tuber formation, a graft-transmissible signal initiated in the leaves moves through the vascular system to induce a growth response.  ISU researchers have discovered that this signal is due to mobile RNAs encoding for two transcription factors (BEL and KNOX) and shown that their overexpression enhances plant growth even under non-inductive conditions.   In addition to a substantial increase in the number of tubers and the potential to regulate flowering, this technology may have utility for acceleration of tuber growth in field plants, thus shortening the time for field cultivation.  It could also be used to shorten the timing of a “late” potato variety to produce an earlier harvest.  This technology may also have utility for the production of bio-pharmaceuticals or other useful compounds in potatoes.

Group:
This technology is related to ISURF 4587: Potato tuber yield enhancement

Advantage:
• Acceleration of  tuber growth, shortening the time for field cultivation
• Potential for earlier harvest for “late” potato varieties
• May be used to regulate flowering
• Enhanced tuber formation
Application:
Plant production

References:
Patent Information:
*To see the full version of the patent(s), follow the link below, then click on "Images" button.
Country Serial No. Patent No. Issued Date
United States 11/172,023 7,579,150* 8/25/2009


Direct Link: