The Calvin-Benson-Bassham cycle in C4 and Crassulacean acid metabolism species

IF 6.2 2区 生物学 Q1 CELL BIOLOGY Seminars in cell & developmental biology Pub Date : 2023-08-04 DOI:10.1016/j.semcdb.2023.07.013
Martha Ludwig , James Hartwell , Christine A. Raines , Andrew J. Simkin
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引用次数: 1

Abstract

The Calvin-Benson-Bassham (CBB) cycle is the ancestral CO2 assimilation pathway and is found in all photosynthetic organisms. Biochemical extensions to the CBB cycle have evolved that allow the resulting pathways to act as CO2 concentrating mechanisms, either spatially in the case of C4 photosynthesis or temporally in the case of Crassulacean acid metabolism (CAM). While the biochemical steps in the C4 and CAM pathways are known, questions remain on their integration and regulation with CBB cycle activity. The application of omic and transgenic technologies is providing a more complete understanding of the biochemistry of C4 and CAM species and will also provide insight into the CBB cycle in these plants. As the global population increases, new solutions are required to increase crop yields and meet demands for food and other bioproducts. Previous work in C3 species has shown that increasing carbon assimilation through genetic manipulation of the CBB cycle can increase biomass and yield. There may also be options to improve photosynthesis in species using C4 photosynthesis and CAM through manipulation of the CBB cycle in these plants. This is an underexplored strategy and requires more basic knowledge of CBB cycle operation in these species to enable approaches for increased productivity.

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C4和天冬酸代谢物种的Calvin-Benson-Bassham循环
Calvin Benson Bassham(CBB)循环是祖先的CO2同化途径,在所有光合生物中都有发现。CBB循环的生物化学扩展已经进化,允许产生的途径作为CO2浓缩机制,无论是在C4光合作用的空间上,还是在景天莲酸代谢(CAM)的时间上。虽然C4和CAM途径中的生化步骤是已知的,但它们与CBB循环活性的整合和调节仍存在问题。omic和转基因技术的应用为C4和CAM物种的生物化学提供了更完整的理解,也将为这些植物的CBB循环提供见解。随着全球人口的增加,需要新的解决方案来提高作物产量,满足对粮食和其他生物产品的需求。先前对C3物种的研究表明,通过CBB循环的遗传操作来增加碳同化可以增加生物量和产量。还可以通过操纵这些植物的CBB循环,使用C4光合作用和CAM来改善物种的光合作用。这是一个未充分探索的战略,需要对这些物种的CBB循环操作有更多的基本知识,以实现提高生产力的方法。
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来源期刊
CiteScore
15.10
自引率
1.40%
发文量
310
审稿时长
9.1 weeks
期刊介绍: Seminars in Cell and Developmental Biology is a review journal dedicated to keeping scientists informed of developments in the field of molecular cell and developmental biology, on a topic by topic basis. Each issue is thematic in approach, devoted to an important topic of interest to cell and developmental biologists, focusing on the latest advances and their specific implications. The aim of each issue is to provide a coordinated, readable, and lively review of a selected area, published rapidly to ensure currency.
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