Collaborative Research: Exploiting prokaryotic proteins to improve plant photosynthetic efficiency (EPP)

合作研究：利用原核蛋白提高植物光合效率（EPP）

• 批准号: BB/I024488/1
• 负责人: Martin Parry
• 金额: $ 26.79万
• 依托单位: Rothamsted Research
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2011
• 资助国家: 英国
• 起止时间: 2011 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=BB%2FI024488%2F1
• 关键词: Collaborative; Research; Exploiting; prokaryotic; proteins

The efficiency of light interception and of partitioning of photoassimilate into the harvested components of the major food crops appears to have been fully optimised. Nevertheless, there is still very significant scope for increasing crop productivity by increasing the conversion efficiency of photosynthesis by decreasing the proportion of assimilated carbon that is lost through simultaneous metabolic processes. One such process, photorespiration, is in principle completely expendable and yet can account for assimilate losses of 25-50%. The objective of this proposal is to introduce a cyanobacterial carboxysome-based CO2 concentrating mechanism into the chloroplasts of a model C3 plant (tobacco) in order to reduce, or eliminate, photorespiration. This objective will be addressed using a multidisciplinary approach, through the collaboration of several research groups, each contributing complementary expertise in the essential areas of carboxysome genetics and assembly, plant transformation, photosynthetic systems modelling and physiological and biochemical characterisation of whole plant and component photosynthetic processes. The progress and outcomes from the project will be made available to breeders and to the scientific community, with data being presented on the project website, at scientific meetings, at stakeholder events and in peer reviewed publications

光截获的效率和光合同化物分配到主要粮食作物收获的成分似乎已经充分优化。尽管如此，通过减少通过同时代谢过程损失的同化碳的比例来提高光合作用的转化效率，仍然有很大的提高作物生产力的余地。其中一个过程，光呼吸，原则上是完全消耗性的，但可以解释25- 50%的同化物损失。本提案的目的是引入一个蓝藻的羧基为基础的CO2浓缩机制到一个模型C3植物（烟草）的叶绿体，以减少或消除，光呼吸。这一目标将通过多个研究小组的合作，采用多学科方法来实现，每个研究小组都在碳粒遗传学和组装、植物转化、光合系统建模以及整株植物和组成部分的生理和生化特征等重要领域提供互补的专业知识光合过程。该项目的进展和成果将提供给育种者和科学界，数据将在项目网站、科学会议、利益攸关方活动和同行评审出版物上公布。

项目成果

Towards engineering carboxysomes into C3 plants.

• DOI: 10.1111/tpj.13139
• 发表时间: 2016-07
• 期刊: The Plant journal : for cell and molecular biology
• 作者: Hanson MR;Lin MT;Carmo-Silva AE;Parry MA
• 通讯作者: Parry MA

A faster Rubisco with potential to increase photosynthesis in crops.

• DOI: 10.1038/nature13776
• 发表时间: 2014-09-25
• 期刊: NATURE
• 影响因子: 64.8
• 作者: Lin, Myat T.;Occhialini, Alessandro;Andralojc, P. John;Parry, Martin A. J.;Hanson, Maureen R.
• 通讯作者: Hanson, Maureen R.