Seed Storage Protein Deficiency Improves Sulfur Amino Acid Content in Common Bean (Phaseolus vulgarisL.): Redirection of Sulfur from γ-Glutamyl-S-methyl-cysteine

2008 ◽  
Vol 56 (14) ◽  
pp. 5647-5654 ◽  
Author(s):  
Meghan Taylor ◽  
Ralph Chapman ◽  
Ronald Beyaert ◽  
Cinta Hernández-Sebastià ◽  
Frédéric Marsolais
Keyword(s):  
Amino Acid ◽  
Common Bean ◽  
Storage Protein ◽  
Acid Content ◽  
Seed Storage Protein ◽  
Amino Acid Content ◽  
Seed Storage ◽  
Protein Deficiency ◽  
Sulfur Amino Acid

Development of high protein soybean experimental lines with enhanced sulfur amino acid content

2019 ◽  
Author(s):  
◽  
Alaa Alaswad
Keyword(s):  
Amino Acid ◽  
Acid Content ◽  
Nutritive Value ◽  
Animal Feed ◽  
Amino Acid Content ◽  
The United States ◽  
High Protein ◽  
Sulfur Amino Acid ◽  
Soybean Line ◽  
Modest Improvement

[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Soybean is one of the most important field crops grown in the United States. Commercial soybeans contain about 36 - 40% protein and 18 - 20% oil, by dry weight. Most of the soybean produced in the U.S. is utilized for oil production and animal feed. Even though soybean is a rich source of protein for livestock and humans, the nutritional quality of soybean can be further enhanced if the concentration of sulfur containing amino acids, methionine and cysteine, can be increased. Previously, our lab has employed transgenic approaches to increase the nutritive value of soybean by expressing heterologous sulfur-rich seed proteins and by manipulating the sulfur assimilatory pathway. Even though modest improvement in the nutritive value has been obtained by these approaches, till now no high yielding soybean cultivars with high protein and high sulfur amino acid content has been developed. Such cultivars will be of great value for the agricultural industry especially in animal feed. In this study, I have crossed a South Korean high protein soybean line (Lee5) with a transgenic soybean line with elevated sulfur amino acid content (CS) and developed soybean experimental lines that were advanced to F4:5 seeds. Theses experimental lines exhibit both high protein and high sulfur amino acid content. The protein content of their seeds has been increased 8 to 14% while their oil content has decreased 5 to 7% when compared with CS. Furthermore, I have successfully introduced the cytosolic isoform of O-acetylserine sulfhydrylase (OASS), the overexpressed transgene, from CS into these crosses. The activity of OASS has been increased 5 to 20-fold in experimental lines when compared to Lee5.

Nitrogen Lowers the Sulfur Amino Acid Content of Soybean (Glycine max[L.] Merr.) by Regulating the Accumulation of Bowman−Birk Protease Inhibitor

2005 ◽  
Vol 53 (16) ◽  
pp. 6347-6354 ◽  
Author(s):  
Hari B. Krishnan ◽  
John O. Bennett ◽  
Won-Seok Kim ◽  
Ammulu Hari Krishnan ◽  
Thomas P. Mawhinney
Keyword(s):  
Glycine Max ◽  
Amino Acid ◽  
Protease Inhibitor ◽  
Acid Content ◽  
Amino Acid Content ◽  
Sulfur Amino Acid ◽  
Glycine Max L

scholarly journals The Cause of Change in Egg Cycle by Varying Sulfur Amino Acid Content of the Diet

1970 ◽  
Vol 49 (5) ◽  
pp. 1359-1361 ◽  
Author(s):  
R.S. Moreno ◽  
H.R. Wilson ◽  
B.L. Damron ◽  
R.H. Harms
Keyword(s):  
Amino Acid ◽  
Acid Content ◽  
Amino Acid Content ◽  
Sulfur Amino Acid

Development of soybean experimental lines with enhanced protein and sulfur amino acid content

Plant Science ◽  
2021 ◽  
pp. 110912
Author(s):  
Alaa A. Alaswad ◽  
Bo Song ◽  
Nathan W. Oehrle ◽  
William J. Wiebold ◽  
Thomas P. Mawhinney ◽  
...  
Keyword(s):  
Amino Acid ◽  
Acid Content ◽  
Amino Acid Content ◽  
Sulfur Amino Acid
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