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Title: | Ectopic expression of amaranth seed storage albumin modulates photoassimilate transport and nutrient acquisition in sweetpotato |
Authors: | Shekhar, Shubhendu Agrawal, Lalit Mishra, Divya Buragohain, Alak Kumar Unnikrishnan, Mullath Mohan, Chokkappan Chakraborty, Subhra Chakraborty, Niranjan |
Keywords: | Plant molecular biology Plant biotechnology Molecular engineering in plants |
Issue Date: | 2016 |
Publisher: | Nature Publishing Group |
Citation: | Scientific Reports, 6: 25384 |
Abstract: | Storage proteins in plants, because of high nutrient value, have been a subject of intensive investigation. These proteins are synthesized de novo in the cytoplasm and transported to the storage organelles where they serve as reservoir of energy and supplement of nitrogen during rapid growth and development. Sweetpotato is the seventh most important food crop worldwide, and has a significant contribution to the source of nutrition, albeit with low protein content. To determine the behaviour of seed storage proteins in non-native system, a seed albumin, AmA1, was overexpressed in sweetpotato with an additional aim of improving nutritional quality of tuber proteins. Introduction of AmA1 imparted an increase in protein and amino acid contents as well as the phytophenols. The proteometabolomics analysis revealed a rebalancing of the proteome, with no significant effects on the global metabolome profile of the transgenic tubers. Additionally, the slower degradation of starch and cellulose in transgenic tubers, led to increased post-harvest durability. Present study provides a new insight into the role of a seed storage protein in the modulation of photoassimilate movement and nutrient acquisition. |
Description: | Accepted date: 18 April 2016 |
URI: | http://172.16.0.77:8080/jspui/handle/123456789/650 |
ISSN: | 2045-2322 |
Appears in Collections: | Institutional Publications |
Files in This Item:
File | Description | Size | Format | |
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Chakraborty N_2016_2.pdf | 2.23 MB | Adobe PDF | View/Open |
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