HOME >> BIOLOGY >> NEWS
Enhancing the nutritional value of soybeans

HONOLULU, HAWAII -- Biotechnology enhanced soybeans with tryptophan levels that are up to 30 times higher than traditionally bred seeds have been grown over 5 generations. Soybeans are a major source of nitrogen and amino acids (AAs) for animal feeds. In many feed rations, the AAs lysine and methionine are limiting unless synthetic versions of these AAs are added to the ration, then a second-tier of AAs become limiting. Tryptophan is included in this group where the high cost of synthetic second-tier AAs may limit their use.

Anthranilate synthase (AS) catalyzes one of the key steps in the biosynthetic pathway for tryptophan production in plants. To increase tryptophan content in soybean seeds, a variant of the maize AS gene that is insensitive to tryptophan inhibition was expressed in soybean using a seed specific promoter. Protein and oil of high tryptophan seeds were not significantly different from the traditionally bred controls. Additional testing, including agronomic performance and metabolic profiling are underway.

The research findings will be presented by Jihong Liang during a mini-symposium on Metabolic Engineering 4:10 p.m. to 5:50 p.m. Eastern Time July 30, 2003 at the American Society of Plant Biologists (ASPB) annual meeting in the Hawaii Convention Center, Honolulu, Hawaii. ASPB is a non-profit society with nearly 6,000 plant scientist members.

Presenter: Jihong Liang, Jihong.liang@renessen.com
Authors: Jihong Liang of Renessen LLC and Bill Rapp, Lisa Weaver, Qi Wang, Laura Crow, Joel Ream, Betsy Hill, Wayne Brown, Tim Oulmassov and Ken Gruys, all of Monsanto.


'"/>

Contact: Brian Hyps
bhyps@aspb.org
571-332-2522
American Society of Plant Biologists
30-Jul-2003


Page: 1

Related biology news :

1. Plant-Based Fat Inhibits Cancer-Cell Growth By Enhancing Cells Signaling System, UB Researchers Show
2. International symposium on nutritional genomics
3. Could Bt transgenic crops have nutritionally favourable effects on insects?
4. UB study finds early nutritional modification programs metabolism, predisposes to obesity
5. Bipolar disorder successfully treated with nutritional supplement
6. Dietary study finds marijuana users have normal nutritional status, risky lifestyle habits
7. Scientists: nutritional deficiency can boost influenza virus damage
8. Iron chefs get nutritional boost cooking vegetables
9. New unified dietary guidelines offer nutritional protection against wide range of killer diseases
10. DFG presents the 2004 MAK and BAT value lists
11. Studies show preventive value of food supplements

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:7/4/2020)... ... July 03, 2020 , ... Aesthetics Biomedical (ABM), a ... awards for not only the products and treatments developed, but also the dedicated ... RF. All the brands built by ABM have received several honors already for ...
(Date:6/28/2020)... ... June 25, 2020 , ... ... biopharmaceutical R&D, today announced that it has entered into a multi-year contract ... (Multiclonics®), to support their translational and clinical research strategy to discover and ...
(Date:6/23/2020)... ... ... The field of quantitation of large molecules or proteins has been around for ... use of mass spectrometry in this field has gained a lot of momentum in ... which approach to use (LBA or MS)?” In many cases, either technology can ...
Breaking Biology News(10 mins):
(Date:8/12/2020)... Mass. (PRWEB) , ... August 11, 2020 , ... ... $300,000 a year to expand the Facioscapulohumeral Muscular Dystrophy Clinical Trial Research ... in 2021 and 2022. The network is a consortium of academic research centers ...
(Date:8/3/2020)... ... 03, 2020 , ... Introducing Ardent Animal Health – MediVet Biologics rebrands company ... Known as MediVet Biologics since its formation in 2016, the company is relaunching ... Health will build on its base of innovative therapies for osteoarthritis and cancer. ...
(Date:7/31/2020)... ... July 29, 2020 , ... ... the leading global provider of advanced delivery technologies, development, and manufacturing solutions for ... they have entered into a strategic partnership whereby Catalent will provide support for ...
(Date:7/18/2020)... ... 16, 2020 , ... After research model surgery and catheter implantation, the long ... only the beginning of a successful study, while protecting and accessing the catheter or ... Head of Surgery from Envigo in a live webinar on ...
Breaking Biology Technology:
Cached News: