ArticlePhysiologia plantarum
Here Comes the Sun: Xanthophylls as Components of Plant Memory.
Article in Physiologia plantarum. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- Here Comes the Sun: Xanthophylls as Components of Plant Memory.Physiologia plantarumArticle
Corrections and comments
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Authors and funding
6 authors.
Funding
Abstract
It has been proposed that the de-epoxidation state of the xanthophyll cycle (AZ/VAZ) represents a mechanism of light memory storage in plants as it depends on the amount of light previously received by the leaf, later affecting the photosynthetic responses by modulating the rate of non-photochemical quenching (NPQ). In this study we examine what the time window is for which the cumulative photon dose (CumPFD) best explains AZ/VAZ. For this purpose, we developed a field experiment in a boreal forest in Finland on 17 species representing all major functional groups. In all species AZ/VAZ correlated more strongly with CumPFD than with instantaneous light intensity, supporting its role as a form of light memory. Besides AZ/VAZ was linked to photochemical efficiency, demonstrating that it influences current photosynthetic performance. However, the duration of this memory differed among species, with some (mosses, ferns, herbs and deciduous woody plants) where AZ/VAZ best reflected CumPFD of the previous 2-5 h (short-term memory) and others (mainly evergreen species) where AZ/VAZ integrated CumPFD received for 10-15 h (long-term memory). Overall, these results show that AZ/VAZ fulfills the concept of a memory mechanism. Additionally, they pinpoint that this form of storage is transient, varies with plant functional types, and generally vanishes within 24 h.
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