PsbS is required for systemic acquired acclimation and post-excess-light-stress optimization of chlorophyll fluorescence decay times in<i>Arabidopsis</i>

Ciszak, K.; Kulasek, Milena; Barczak, Anna; Grzelak, Justyna; Maćkowski, Sebastian; Karpiński, Stanisław

doi:10.4161/15592324.2014.982018

Cited by 14 publications

(6 citation statements)

References 38 publications

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“…This leads us to the conclusion that PsbS is not a direct regulator of thermal dissipation. Moreover, our recent study ( Ciszak et al 2014 ) provided new evidence that PsbS is not a simple activator of NPQ, but its role is much more complex; it plays a role in overall regulation of the fate of the absorbed photon energy. In fact, the findings of other studies ( Külheim et al 2002 , Külheim and Jansson 2005 , Krah and Logan 2010 ) and our study ( Ciszak et al 2014 ) show that PsbS is a positive regulator of photosynthesis and plant productivity in artificial or natural EEE conditions, and is a negative regulator of NPQ.…”

Section: Discussionmentioning

confidence: 99%

Contribution of PsbS Function and Stomatal Conductance to Foliar Temperature in Higher Plants

et al. 2016

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Natural capacity has evolved in higher plants to absorb and harness excessive light energy. In basic models, the majority of absorbed photon energy is radiated back as fluorescence and heat. For years the proton sensor protein PsbS was considered to play a critical role in non-photochemical quenching (NPQ) of light absorbed by PSII antennae and in its dissipation as heat. However, the significance of PsbS in regulating heat emission from a whole leaf has never been verified before by direct measurement of foliar temperature under changing light intensity. To test its validity, we here investigated the foliar temperature changes on increasing and decreasing light intensity conditions (foliar temperature dynamics) using a high resolution thermal camera and a powerful adjustable light-emitting diode (LED) light source. First, we showed that light-dependent foliar temperature dynamics is correlated with Chl content in leaves of various plant species. Secondly, we compared the foliar temperature dynamics in Arabidopsis thaliana wild type, the PsbS null mutant npq4-1 and a PsbS-overexpressing transgenic line under different transpiration conditions with or without a photosynthesis inhibitor. We found no direct correlations between the NPQ level and the foliar temperature dynamics. Rather, differences in foliar temperature dynamics are primarily affected by stomatal aperture, and rapid foliar temperature increase during irradiation depends on the water status of the leaf. We conclude that PsbS is not directly involved in regulation of foliar temperature dynamics during excessive light energy episodes.

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Section: Discussionmentioning

confidence: 99%

Contribution of PsbS Function and Stomatal Conductance to Foliar Temperature in Higher Plants

et al. 2016

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“…Two genes related to the regulation of mesophilic diffusion restriction include PIP1;2 (discussed above) and β CA1 (β-carbonic anhydrase 1), both of which participate in carboxylation or decarboxylation reactions related to photosynthesis and respiration; as such, they play an important role in the catalysis of CO 2 and water to form protons and bicarbonate ( Hu et al, 2015 ). The PsbS (photosystem II subunit S) and VDE (violaxanthin depoxidase) genes are involved in the photoprotection mechanism to avoid damage caused by oxidative stress in plants due to excess energy from sunlight ( Fufezan et al, 2012 ; Ciszak et al, 2015 ). The DFR (dihydroflavonol reductase) gene is involved in the biosynthesis of anthocyanins, which protect plants from stress through their activity of ROS detoxification ( Cui et al, 2014 ).…”

Section: Algal and Botanical Extractsmentioning

confidence: 99%

Transcriptomics of Biostimulation of Plants Under Abiotic Stress

et al. 2021

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Plant biostimulants are compounds, living microorganisms, or their constituent parts that alter plant development programs. The impact of biostimulants is manifested in several ways: via morphological, physiological, biochemical, epigenomic, proteomic, and transcriptomic changes. For each of these, a response and alteration occur, and these alterations in turn improve metabolic and adaptive performance in the environment. Many studies have been conducted on the effects of different biotic and abiotic stimulants on plants, including many crop species. However, as far as we know, there are no reviews available that describe the impact of biostimulants for a specific field such as transcriptomics, which is the objective of this review. For the commercial registration process of products for agricultural use, it is necessary to distinguish the specific impact of biostimulants from that of other legal categories of products used in agriculture, such as fertilizers and plant hormones. For the chemical or biological classification of biostimulants, the classification is seen as a complex issue, given the great diversity of compounds and organisms that cause biostimulation. However, with an approach focused on the impact on a particular field such as transcriptomics, it is perhaps possible to obtain a criterion that allows biostimulants to be grouped considering their effects on living systems, as well as the overlap of the impact on metabolism, physiology, and morphology occurring between fertilizers, hormones, and biostimulants.

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“…Excess light-triggered changes in plasma membrane potential, and then systemic propagation of the electrical potential were inhibited by DCMU, which prevents reduction of plastoquinone at photosystem II and generates singlet oxygen. The systemic propagation of the electrical signal was also deregulated by DBMIB, which prevents plastoquinol from reducing the cytochrome b 6 f complex, and generates superoxide (Szechyńska-Hebda et al, 2010 ; Ciszak et al, 2015 ; Gilroy et al, 2016 ; Białasek et al, 2017 ). Similarly, electrical signaling triggered by the excess light, had a reduced amplitude in cad2 and rax1 mutant (Szechyńska-Hebda et al, 2010 ).…”

Section: Excess Excitation Energy and Electrical Signalingmentioning

confidence: 99%

“…Some evidences indicate that NPQ, PsbS protein, H 2 O 2 level, APX2 are interrelated and play an important role in an electrical signal propagation inducing SAA and SAR. First, PsbS is required for SAA and light stress memory in Arabidopsis ( Szechyńska-Hebda et al, 2010 ; Ciszak et al, 2015 ). The wild type rosettes exhibit a small reduction of fluorescence decay time in leaves directly exposed to excess light and in leaves undergoing SAA in low light conditions.…”

Section: Excess Excitation Energy and Electrical Signalingmentioning

confidence: 99%

Electrical Signaling, Photosynthesis and Systemic Acquired Acclimation

2017

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Electrical signaling in higher plants is required for the appropriate intracellular and intercellular communication, stress responses, growth and development. In this review, we have focus on recent findings regarding the electrical signaling, as a major regulator of the systemic acquired acclimation (SAA) and the systemic acquired resistance (SAR). The electric signaling on its own cannot confer the required specificity of information to trigger SAA and SAR, therefore, we have also discussed a number of other mechanisms and signaling systems that can operate in combination with electric signaling. We have emphasized the interrelation between ionic mechanism of electrical activity and regulation of photosynthesis, which is intrinsic to a proper induction of SAA and SAR. In a special way, we have summarized the role of non-photochemical quenching and its regulator PsbS. Further, redox status of the cell, calcium and hydraulic waves, hormonal circuits and stomatal aperture regulation have been considered as components of the signaling. Finally, a model of light-dependent mechanisms of electrical signaling propagation has been presented together with the systemic regulation of light-responsive genes encoding both, ion channels and proteins involved in regulation of their activity. Due to space limitations, we have not addressed many other important aspects of hormonal and ROS signaling, which were presented in a number of recent excellent reviews.

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PsbS is required for systemic acquired acclimation and post-excess-light-stress optimization of chlorophyll fluorescence decay times inArabidopsis

Cited by 14 publications

References 38 publications

Contribution of PsbS Function and Stomatal Conductance to Foliar Temperature in Higher Plants

Contribution of PsbS Function and Stomatal Conductance to Foliar Temperature in Higher Plants

Transcriptomics of Biostimulation of Plants Under Abiotic Stress

Electrical Signaling, Photosynthesis and Systemic Acquired Acclimation

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