期刊
PLANT JOURNAL
卷 101, 期 4, 页码 845-857出版社
WILEY
DOI: 10.1111/tpj.14656
关键词
cell division; cell growth; cell wall; leaf; CO2 transport; mesophyll conductance
资金
- Leverhulme Early Career Fellowship [ECF-2018-302]
- BBSRC [BB/N013719]
- Royal Society [R1/180027]
- BBSRC [BB/N013719/1] Funding Source: UKRI
After entering the leaf, CO2 faces an intricate pathway to the site of photosynthetic fixation embedded within the chloroplasts. The efficiency of CO2 flux is hindered by a number of structural and biochemical barriers which, together, define the ease of flow of the gas within the leaf, termed mesophyll conductance. Previous authors have identified the key elements of this pathway, raising the prospect of engineering the system to improve CO2 flux and, thus, to increase leaf photosynthetic efficiency. In this review, we provide a perspective on the potential for improving the individual elements that contribute to this complex parameter. We lay particular emphasis on generation of the cellular architecture of the leaf which sets the initial boundaries of a number of mesophyll conductance parameters, incorporating an overview of the molecular transport processes which have been proposed as major facilitators of CO2 flux across structural boundaries along the pathway. The review highlights the research areas where future effort might be invested to increase our fundamental understanding of mesophyll conductance and leaf function and, consequently, to enable translation of these findings to improve the efficiency of crop photosynthesis.
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