A System Dynamics Approach to Model Photosynthesis at Leaf Level Under Fluctuating Light release_5kzgr36y3rfh7k5yl6eqed3oay

by Nicole Salvatori, Fabrizio Carteni, Francesco Giannino, Giorgio Alberti, Stefano Mazzoleni, Alessandro Peressotti

Published in Frontiers in Plant Science by Frontiers Media SA.

2022   Volume 12, p787877

Abstract

Photosynthesis has been mainly studied under steady-state conditions even though this assumption results inadequate for assessing the biochemical responses to rapid variations occurring in natural environments. The combination of mathematical models with available data may enhance the understanding of the dynamic responses of plants to fluctuating environments and can be used to make predictions on how photosynthesis would respond to non-steady-state conditions. In this study, we present a leaf level System Dynamics photosynthesis model based and validated on an experiment performed on two soybean varieties, namely, the wild type Eiko and the chlorophyll-deficient mutant MinnGold, grown in constant and fluctuating light conditions. This mutant is known to have similar steady-state photosynthesis compared to the green wild type, but it is found to have less biomass at harvest. It has been hypothesized that this might be due to an unoptimized response to non-steady-state conditions; therefore, this mutant seems appropriate to investigate dynamic photosynthesis. The model explained well the photosynthetic responses of these two varieties to fluctuating and constant light conditions and allowed to make relevant conclusions on the different dynamic responses of the two varieties. Deviations between data and model simulations are mostly evident in the non-photochemical quenching (NPQ) dynamics due to the oversimplified combination of PsbS- and zeaxanthin-dependent kinetics, failing in finely capturing the NPQ responses at different timescales. Nevertheless, due to its simplicity, the model can provide the basis of an upscaled dynamic model at a plant level.
In application/xml+jats format

Archived Files and Locations

application/pdf  4.6 MB
file_sbgwosevxnbflhmfrhk47dxcom
fjfsdata01prod.blob.core.windows.net (publisher)
web.archive.org (webarchive)

Web Captures

https://www.frontiersin.org/articles/10.3389/fpls.2021.787877/full
2022-05-27 20:42:12 | 38 resources
webcapture_g4phpto3fngwhbtj3v2thngtwy
web.archive.org (webarchive)
Read Archived PDF
Preserved and Accessible
Type  article-journal
Stage   published
Date   2022-01-28
Language   en ?
Container Metadata
Open Access Publication
In DOAJ
In ISSN ROAD
In Keepers Registry
ISSN-L:  1664-462X
Work Entity
access all versions, variants, and formats of this works (eg, pre-prints)
Catalog Record
Revision: d77f7f72-d05b-4997-93f7-48adf0a38555
API URL: JSON