The prospect of using cyanobacterial bicarbonate transporters to improve leaf photosynthesis in C3 crop plants.
نویسندگان
چکیده
منابع مشابه
Update on Chloroplast Bicarbonate Pumps The Prospect of Using Cyanobacterial Bicarbonate Transporters to Improve Leaf Photosynthesis in C3 Crop Plants
The photosynthetic CO2-fixing enzyme Rubisco arose some 3.5 billion years ago, in an environment when CO2 was high and oxygen (O2) was low. Under these conditions, it was CO2 saturated and presumably performed well (Badger et al., 1998). However, since the advent of oxygenic photosynthesis, the levels of O2 have risen dramatically and CO2 has fallen to very low levels. This has gradually create...
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Various genetic engineering routes to enhance C3 leaf photosynthesis have been proposed to improve crop productivity. However, their potential contribution to crop productivity needs to be assessed under realistic field conditions. Using 31 year weather data, we ran the crop model GECROS for rice in tropical, subtropical, and temperate environments, to evaluate the following routes: (1) improvi...
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Photosynthesis in C3 plants is limited by features of the carbon-fixing enzyme Rubisco, which exhibits a low turnover rate and can also react with O2, leading to photorespiration. In cyanobacteria, bacterial microcompartments known as carboxysomes improve photosynthetic efficiency by concentrating CO2 near Rubisco. Thus transferring the carbon-concentrating mechanism from cyanobacteria to C3 pl...
متن کاملSpecific and Efficient Targeting of Cyanobacterial Bicarbonate Transporters to the Inner Envelope Membrane of Chloroplasts in Arabidopsis
Installation of cyanobacterial bicarbonate transporters to the inner envelope membrane (IEM) of chloroplasts in C3 plants has been thought to improve photosynthetic performance. However, the method to deliver cyanobacterial bicarbonate transporters to the chloroplast IEM remains to be established. In this study, we provide evidence that the cyanobacterial bicarbonate transporters, BicA and SbtA...
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Cyanobacterial HCO3(-) transporters BCT1, SbtA and BicA are important components of cyanobacterial CO2-concentration mechanisms. They also show potential in applications aimed at improving photosynthetic rates and yield when expressed in the chloroplasts of C3 crop species. The present study investigated the feasibility of using Escherichia coli to assess function of a range of SbtA and BicA tr...
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ورودعنوان ژورنال:
- Plant physiology
دوره 155 1 شماره
صفحات -
تاریخ انتشار 2011