Cellular Perspectives for Improving Mesophyll Conductance

Lundgren, Marjorie and Fleming, Andrew J. (2020) Cellular Perspectives for Improving Mesophyll Conductance. The Plant Journal, 101 (4). pp. 845-857. ISSN 0960-7412

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Abstract

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.

Item Type:
Journal Article
Journal or Publication Title:
The Plant Journal
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1300/1311
Subjects:
ID Code:
140320
Deposited By:
Deposited On:
13 Jan 2020 16:35
Refereed?:
Yes
Published?:
Published
Last Modified:
30 Sep 2020 09:35