ArticleAnnals of botany2010
Protection of thylakoids against combined light and drought by a lumenal substance in the resurrection plant Haberlea rhodopensis.
Article in Annals of botany, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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Who cites it
22 citing papers in PubMed, 73 citations in OpenAlex.
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- A Comprehensive Analysis of Diversity, Structure, Biosynthesis and Extraction of Biologically Active Tannins from Various Plant-Based Materials Using Deep Eutectic Solvents.Molecules (Basel, Switzerland) · 2024Review
- Roles of endophytic fungi in medicinal plant abiotic stress response and TCM quality development.Chinese herbal medicines · 2024Review
- Dynamics of chromatin accessibility and genome wide control of desiccation tolerance in the resurrection plant Haberlea rhodopensis.BMC plant biology · 2023Article
- Protein Changes in Shade and SunPlants (Basel, Switzerland) · 2023Article
- Review
- Reactivation of the Photosynthetic Apparatus of Resurrection PlantPlants (Basel, Switzerland) · 2022Article
- Proteomics Evidence of a Systemic Response to Desiccation in the Resurrection PlantInternational journal of molecular sciences · 2022Article
- Drought resistance mechanisms of Phedimus aizoon L.Scientific reports · 2021Article
- Dynamics of cell wall structure and related genomic resources for drought tolerance in rice.Plant cell reports · 2021Review
- Transcriptomic Study for Identification of Major Nitrogen Stress Responsive Genes in Australian Bread Wheat Cultivars.Frontiers in genetics · 2020Article
- Activity of δ-aminolevulinic acid dehydratase at Ramonda nathaliae and Ramonda serbica plants during dehydration and rehydration.Biologia futura · 2019Article
- Low Nitrogen Priming Enhances Photosynthesis Adaptation to Water-Deficit Stress in Winter Wheat (Frontiers in plant science · 2019Article
- Transcriptome reprogramming during severe dehydration contributes to physiological and metabolic changes in the resurrection plant Haberlea rhodopensis.BMC plant biology · 2018Article
- Perspectives on Structural, Physiological, Cellular, and Molecular Responses to Desiccation in Resurrection Plants.Scientifica · 2018Review
- In vivo spectroscopy and NMR metabolite fingerprinting approaches to connect the dynamics of photosynthetic and metabolic phenotypes in resurrection plant Haberlea rhodopensis during desiccation and recovery.Frontiers in plant science · 2015Article
- Article
- The tannosome is an organelle forming condensed tannins in the chlorophyllous organs of Tracheophyta.Annals of botany · 2013Article
- Chlorophyll fluorescence imaging of photosynthetic activity and pigment contents of the resurrection plants Ramonda serbica and Ramonda nathaliae during dehydration and rehydration.Physiology and molecular biology of plants : an international journal of functional plant biology · 2013Article
- Understanding desiccation tolerance using the resurrection plant Boea hygrometrica as a model system.Frontiers in plant science · 2013Review
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3 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimsHaberlea rhodopensis is a perennial, herbaceous, saxicolous, poikilohydric flowering plant that is able to survive desiccation to air-dried state under irradiance below 30 micromol m-2 s-1. However, desiccation at irradiance of 350 micromol m-2 s-1 induced irreversible changes in the photosynthetic apparatus, and mature leaves did not recover after rehydration. The aim here was to establish the causes and mechanisms of irreversible damage of the photosynthetic apparatus due to dehydration at high irradiance, and to elucidate the mechanisms determining recovery.
methodsChanges in chloroplast structure, CO2 assimilation, chlorophyll fluorescence parameters, fluorescence imaging and the polypeptide patterns during desiccation of Haberlea under medium (100 micromol m-2 s-1; ML) irradiance were compared with those under low (30 micromol m-2 s-1; LL) irradiance. KEY
resultsWell-watered plants (control) at 100 micromol m-2 s-1 were not damaged. Plants desiccated at LL or ML had similar rates of water loss. Dehydration at ML decreased the quantum efficiency of photosystem II photochemistry, and particularly the CO2 assimilation rate, more rapidly than at LL. Dehydration induced accumulation of stress proteins in leaves under both LL and ML. Photosynthetic activity and polypeptide composition were completely restored in LL plants after 1 week of rehydration, but changes persisted under ML conditions. Electron microscopy of structural changes in the chloroplast showed that the thylakoid lumen is filled with an electron-dense substance (dense luminal substance, DLS), while the thylakoid membranes are lightly stained. Upon dehydration and rehydration the DLS thinned and disappeared, the time course largely depending on the illumination: whereas DLS persisted during desiccation and started to disappear during late recovery under LL, it disappeared from the onset of dehydration and later was completely lost under ML.
conclusionsAccumulation of DLS (possibly phenolics) in the thylakoid lumen is demonstrated and is proposed as a mechanism protecting the thylakoid membranes of H. rhodopensis during desiccation and recovery under LL. Disappearance of DLS during desiccation in ML could leave the thylakoid membranes without protection, allowing oxidative damage during dehydration and the initial rehydration, thus preventing recovery of photosynthesis.
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