By a News Reporter-Staff News Editor at Biotech Week -- Researchers detail new data in Cellular Structures. According to news reporting out of Changsha, People's Republic of China, by NewsRx editors, research stated, "Grain size, number and starch content are important determinants of grain yield and quality. One of the most important biological processes that determine these components is the carbon partitioning during the early grain filling, which requires the function of cell wall invertase."
Our news journalists obtained a quote from the research from Hunan Agricultural University, "Here, we showed the constitutive expression of cell wall invertase-encoding gene from Arabidopsis, rice (Oryza sativa) or maize (Zea mays), driven by the cauliflower mosaic virus (CaMV) 35S promoter, all increased cell wall invertase activities in different tissues and organs, including leaves and developing seeds, and substantially improved grain yield up to 145.3% in transgenic maize plants as compared to the wild-type plants, an effect that was reproduced in our 2-year field trials at different locations. The dramatically increased grain yield is due to the enlarged ears with both enhanced grain size and grain number. Constitutive expression of the invertase-encoding gene also increased total starch content up to 20% in the transgenic kernels."
According to the news editors, the research concluded: "Our results suggest that cell wall invertase gene can be genetically engineered to improve both grain yield and grain quality in crop plants."
For more information on this research see: Constitutive expression of cell wall invertase genes increases grain yield and starch content in maize. Plant Biotechnology Journal, 2013;11(9):1080-1091. Plant Biotechnology Journal can be contacted at: Wiley-Blackwell, 111 River St, Hoboken 07030-5774, NJ, USA. (Wiley-Blackwell - www.wiley.com/; Plant Biotechnology Journal - onlinelibrary.wiley.com/journal/10.1111/(ISSN)1467-7652)
Our news journalists report that additional information may be obtained by contacting B. Li, Hunan Agr Univ, Hunan Prov Key Lab Phytohormones & Growth Dev, Changsha, Hunan, People's Republic of China. Additional authors for this research include H. Liu, Y. Zhang, T. Kang, L. Zhang, J.H. Tong, L.T. Xiao and H.X. Zhang (see also Cellular Structures).
Keywords for this news article include: Asia, Changsha, Cell Wall, Cellular Structures, People's Republic of China
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