Light Quality-Dependent Regulation of Non-Photochemical Quenching in Tomato Plants

Trojak, Magdalena; Skowron, Ernest

doi:10.3390/biology10080721

Cited by 13 publications

(17 citation statements)

References 60 publications

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“…However, it is still unclear how different light qualities affect T leaf . Such a response, however, was expected, based on the results of previous studies [3,12], and we found that stomatal conductance and NPQ are related to the lighting spectra applied during plant growth in controlled-environment agriculture. It was noticed that the progressive replacement of R light by G light in the growth RB spectrum decreases stomatal dimensions, thus reducing g s and E and, consequently, improving water-use efficiency [12] while decreasing evaporative cooling and presumably increasing foliar temperature [11].…”

Section: Introductionsupporting

confidence: 50%

“…Moreover, the examined NPQ value in tomato plants grown under monochromatic (R, G, or B) or mixed RGB (1:1:1) light confirmed that R-and B-light treatments enhanced NPQ amplitude, while plants grown under G and RGB spectra presented a significantly lower amplitude of NPQ due to the reduced accumulation of NPQ-related proteins (PsbS, VDE, cytf, and PGRL1) [3]. Another study [15] documented that NPQ amplitude increased in tomato plants grown under RB-and monochromatic B-light spectra compared to values noted under white light with G-light (544 nm) peak wavelength.…”

Section: Introductionmentioning

confidence: 69%

“…Additionally, the thermal dissipation process, called non-photochemical quenching (NPQ), which is crucial to minimising the risk of potential damage, is complex. On the one hand, the induction of NPQ acts as a safety valve, allowing excess light energy absorbed by photosynthetic pigments to be dissipated in the form of harmless heat [3]. On the other hand, while the induction of NPQ is rapid, its relaxation is a prolonged process, limiting photosynthesis, despite the fact that the light intensity might have already shifted towards the optimal dose [4].…”

Section: Introductionmentioning

confidence: 99%

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Growth Light Quality Influences Leaf Surface Temperature by Regulating the Rate of Non-Photochemical Quenching Thermal Dissipation and Stomatal Conductance

Trojak,

Skowron

2023

IJMS

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Significant efforts have been made to optimise spectrum quality in indoor farming to maximise artificial light utilisation and reduce water loss. For such an improvement, green (G) light supplementation to a red–blue (RB) background was successfully employed in our previous studies to restrict both non-photochemical quenching (NPQ) and stomatal conductance (gs). At the same time, however, the downregulation of NPQ and gs had the opposite influence on leaf temperature (Tleaf). Thus, to determine which factor plays the most prominent role in Tleaf regulation and whether such a response is temporal or permanent, we investigated the correlation between NPQ and gs and, subsequently, Tleaf. To this end, we analysed tomato plants (Solanum lycopersicum L. cv. Malinowy Ozarowski) grown solely under monochromatic LED lamps (435, 520, or 662 nm; 80 µmol m−2 s−1) or a mixed RGB spectrum (1:1:1; 180 µmol m−2 s−1) and simultaneously measured gs and Tleaf with an infrared gas analyser and a thermocouple or an infrared thermal camera (FLIR) during thermal imaging analyses. The results showed that growth light quality significantly modifies Tleaf and that such a response is not temporal. Furthermore, we found that the actual adaxial leaf surface temperature of plants is more closely related to NPQ amplitude, while the temperature of the abaxial surface corresponds to gs.

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Section: Introductionsupporting

confidence: 50%

Section: Introductionmentioning

confidence: 69%

Section: Introductionmentioning

confidence: 99%

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Growth Light Quality Influences Leaf Surface Temperature by Regulating the Rate of Non-Photochemical Quenching Thermal Dissipation and Stomatal Conductance

Trojak,

Skowron

2023

IJMS

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“…The replacement of R light with a G in growth spectrum significantly reduced the excitation pressure on PSII and Φ NPQ , and improved the rate of electron transport. Liu et al ( 2017 ) suggested that the addition of G light to the spectrum affects the subsequent light absorption utilized for photosynthesis, whilst Trojak and Skowron ( 2021 ) showed that tomato plants grown under monochromatic G or mixed RGB light presented a decreased NPQ rate, as compared to monochromatic red or blue light. Additionally, Yousef et al ( 2021 ) showed that the best performance of the photosynthetic apparatus was observed under a mixture of R and B light (R7: B3) or a mixture of R, G and B light (R3: G2: B5).…”

Section: Discussionmentioning

confidence: 99%

Effects of partial replacement of red by green light in the growth spectrum on photomorphogenesis and photosynthesis in tomato plants

et al. 2021

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The artificial light used in growth chambers is usually devoid of green (G) light, which is considered to be less photosynthetically efficient than blue (B) or red (R) light. To verify the role of G light supplementation in the spectrum, we modified the RB spectrum by progressively replacing R light with an equal amount of G light. The tomato plants were cultivated under 100 µmol m–2 s–1 of five different combinations of R (35–75%) and G light (0–40%) in the presence of a fixed proportion of B light (25%) provided by light-emitting diodes (LEDs). Substituting G light for R altered the plant’s morphology and partitioning of biomass. We observed a decrease in the dry biomass of leaves, which was associated with increased biomass accumulation and the length of the roots. Moreover, plants previously grown under the RGB spectrum more efficiently utilized the B light that was applied to assess the effective quantum yield of photosystem II, as well as the G light when estimated with CO2 fixation using RB + G light-response curves. At the same time, the inclusion of G light in the growth spectrum reduced stomatal conductance (gs), transpiration (E) and altered stomatal traits, thus improving water-use efficiency. Besides this, the increasing contribution of G light in place of R light in the growth spectrum resulted in the progressive accumulation of phytochrome interacting factor 5, along with a lowered level of chalcone synthase and anthocyanins. However, the plants grown at 40% G light exhibited a decreased net photosynthetic rate (Pn), and consequently, a reduced dry biomass accumulation, accompanied by morphological and molecular traits related to shade-avoidance syndrome.

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“…During evolution on terrestrial habitats, the algal ancestors of extant land plants had to adjust to a broad range of new environmental stimuli and abiotic stresses. Besides the evolution of waterconducting tissues and strategies for desiccation tolerance, land plants had to adapt to the exposure to high sun light intensities (Trojak & Skowron, 2017). While sun light provides photosynthetic energy and important cues for plant growth, high-intensity sun light damages the photosynthetic machinery and has detrimental effects on plant survival (Demmig-Adams & Adams, 1992).…”

Section: Introductionmentioning

confidence: 99%

B‐GATA factors are required to repress high‐light stress responses in Marchantia polymorpha and Arabidopsis thaliana

Schrøder

Hsu

Gutsche

et al. 2023

Plant Cell & Environment

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GATAs are evolutionarily conserved zinc‐finger transcription factors from eukaryotes. In plants, GATAs can be subdivided into four classes, A–D, based on their DNA‐binding domain, and into further subclasses based on additional protein motifs. B‐GATAs with a so‐called leucine‐leucine‐methionine (LLM)‐domain can already be found in algae. In angiosperms, the B‐GATA family is expanded and can be subdivided in to LLM‐ or HAN‐domain B‐GATAs. Both, the LLM‐ and the HAN‐domain are conserved domains of unknown biochemical function. Interestingly, the B‐GATA family in the liverwort Marchantia polymorpha and the moss Physcomitrium patens is restricted to one and four family members, respectively. And, in contrast to vascular plants, the bryophyte B‐GATAs contain a HAN‐ as well as an LLM‐domain. Here, we characterise mutants of the single B‐GATA from Marchantia polymorpha. We reveal that this mutant has defects in thallus growth and in gemma formation. Transcriptomic studies uncover that the B‐GATA mutant displays a constitutive high‐light (HL) stress response, a phenotype that we then also confirm in mutants of Arabidopsis thaliana LLM‐domain B‐GATAs, suggesting that the B‐GATAs have a protective role towards HL stress.

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Light Quality-Dependent Regulation of Non-Photochemical Quenching in Tomato Plants

Cited by 13 publications

References 60 publications

Growth Light Quality Influences Leaf Surface Temperature by Regulating the Rate of Non-Photochemical Quenching Thermal Dissipation and Stomatal Conductance

Growth Light Quality Influences Leaf Surface Temperature by Regulating the Rate of Non-Photochemical Quenching Thermal Dissipation and Stomatal Conductance

Effects of partial replacement of red by green light in the growth spectrum on photomorphogenesis and photosynthesis in tomato plants

B‐GATA factors are required to repress high‐light stress responses in Marchantia polymorpha and Arabidopsis thaliana

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