Seasonality of PSII thermostability and water use efficiency of in situ mountainous Norway spruce (Picea abies)

Petrík, Peter; Petek-Petrik, Anja; Konôpková, Alena; Fleischer, Peter; Stojnić, Srdjan; Zavadilová, Ina; Kurjak, Daniel

doi:10.1007/s11676-022-01476-3

Cited by 12 publications

(8 citation statements)

References 83 publications

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“…During extreme temperatures, due to stomatal, mesophyll, and biochemical limitations, there is a reduction in net CO 2 assimilation, resulting in an excess of light energy absorbed by chloroplasts relative to photosynthesis capacity, electron leakage, and an increase in the formation of reactive oxygen species (ROS, e.g., singlet oxygen, superoxides, hydrogen peroxide, and hydroxyl radicals [ 106 , 107 , 108 ]). Heat stress impairs sugar and photorespiration metabolism, increases membrane lipid fluidity, and accelerates lipid peroxidation, resulting in increased production of ROS and, ultimately, irreversible oxidative stress [ 109 , 110 , 111 ].…”

Section: Discussionmentioning

confidence: 99%

Ectomycorrhizal Fungi Modulate Pedunculate Oak’s Heat Stress Responses through the Alternation of Polyamines, Phenolics, and Osmotica Content

Kebert

Kostić

Čapelja

et al. 2022

Plants

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The physiological and biochemical responses of pedunculate oaks (Quercus robur L.) to heat stress (HS) and mycorrhization (individually as well in combination) were estimated. One-year-old Q. robur seedlings were grown under controlled conditions in a pot experiment, inoculated with a commercial inoculum of ectomycorrhizal (ECM) fungi, and subjected to 72 h of heat stress (40 °C/30 °C day/night temperature, relative humidity 80%, photoperiod 16/8 h) in a climate chamber, and they were compared with seedlings that were grown at room temperature (RT). An in-depth analysis of certain well-known stress-related metrics such as proline, total phenolics, FRAP, ABTS, non-protein thiols, and lipid peroxidation revealed that mycorrhized oak seedlings were more resistant to heat stress (HS) than non-mycorrhized oaks. Additionally, levels of specific polyamines, total phenolics, flavonoids, and condensed tannins as well as osmotica (proline and glycine betaine) content were measured and compared between four treatments: plants inoculated with ectomycorrhizal fungi exposed to heat stress (ECM-HS) and those grown only at RT (ECM-RT) versus non-mycorrhized controls exposed to heat stress (NM-HS) and those grown only at room temperature (NM-RT). In ectomycorrhiza inoculated oak seedlings, heat stress led to not only a rise in proline, total phenols, FRAP, ABTS, non-protein thiols, and lipid peroxidation but a notable decrease in glycine betaine and flavonoids. Amounts of three main polyamines (putrescine, spermine, and spermidine) were quantified by using high-performance liquid chromatography coupled with fluorescent detection (HPLC/FLD) after derivatization with dansyl-chloride. Heat stress significantly increased putrescine levels in non-mycorrhized oak seedlings but had no effect on spermidine or spermine levels, whereas heat stress significantly increased all inspected polyamine levels in oak seedlings inoculated with ectomycorrhizal inoculum. Spermidine (SPD) and spermine (SPM) contents were significantly higher in ECM-inoculated plants during heat stress (approximately 940 and 630 nmol g−1 DW, respectively), whereas these compounds were present in smaller amounts in non-mycorrhized oak seedlings (between 510 and 550 nmol g−1 DW for Spd and between 350 and 450 nmol g−1 DW for Spm). These findings supported the priming and biofertilizer roles of ectomycorrhizal fungi in the mitigation of heat stress in pedunculate oaks by modification of polyamines, phenolics, and osmotica content.

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Section: Discussionmentioning

confidence: 99%

Ectomycorrhizal Fungi Modulate Pedunculate Oak’s Heat Stress Responses through the Alternation of Polyamines, Phenolics, and Osmotica Content

Kebert

Kostić

Čapelja

et al. 2022

Plants

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“…Generally, there was an optimal temperature for stomatal and leaf traits priming in plants. When the temperature exceeded the optimal temperature, stomatal conductance gradually decreased, leading to a decrease in PN (Petrik et al 2023). Therefore T. sinense and its associated species can adjust their physiological functions Sharkey 1982, Shi et al 2012) to adapt to high temperature and strong irradiance, which is consistent with the results obtained for Torreya jackii (Wang 2013).…”

Section: Discussionmentioning

confidence: 99%

The photosynthetic eco-physiological adaptability of the endangered plant Tetracentron sinense to different habitats and altitudes

CHEN¹,

MAO²,

LI³

et al. 2023

Biologia plant.

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point of carbon dioxide; E -transpiration rate; FE -forest edge; FG -forest gap; gs -stomatal conductance; H -high altitude; L -low altitude; LA -leaf area; LCP -light compensation point; LL -leaf length; LM -leaf mass; LSP -light saturation point; LW -leaf width; M -middle altitude; MT -mature individuals of T. sinense; PN -net photosynthetic rate; PNmax -the maximum net photosynthetic rate of the PN-PAR; P * Nmax -the maximum net photosynthetic rate of the PN-CO2; RD -dark respiration rate; Rp -light respiration rate; SLA -specific leaf area; US -understory; YT -young individuals of T. sinense. Acknowledgements: We thank all staff in Meigu Dafengding National Nature Reserve who help to collect data, and thank Xueheng

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“…Plants respond to drought by maximizing the efficiency of their most limited resources, namely WUE, at the expense of NUE and CUE. Plants can also acclimatize to the seasonal occurrence of early spring drought and develop phenotypes with improved WUE [56,57]. Therefore, plant resource utilization efficiency is an indicator of the drought tolerance of a species [25].…”

Section: Differences In Leaf Functional Traits and Resource Utilizati...mentioning

confidence: 99%

Leaf Traits and Resource Use Efficiencies of 19 Woody Plant Species in a Plantation in Fangshan, Beijing, China

Zhong

Tian

Liu

et al. 2022

Forests

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Plantations are typically monocultures, which limits their sustainability. Therefore, understanding acclimatization strategies and resource use efficiencies in plant species and life forms aids the improvement of vegetation diversity and ecological functions. Here, 19 species from forest plantations in Fangshan, Beijing, China were studied. We determined their net photosynthetic (Pn), and transpiration rates (E), light response curve, stomatal conductance (gs), and leaf nitrogen (N) content. We analyzed the leaf N content (Nmass), specific leaf area (SLA), maximum net photosynthetic rate (Pnmax), water use (WUE), nitrogen use (NUE), and carbon use (CUE) efficiencies and connected them with both species and life forms. Pnmax, SLA, Nmass, WUE, NUE, and CUE significantly differed among species. Evergreen conifers had the lowest SLA and Nmass but the highest WUE and CUE. Evergreen coniferous trees had lower SLA, Nmass, Pnmax, and NUE but higher WUE than deciduous trees and shrubs. The SLA, Nmass, and Pnmax of nitrogen-fixing plants were the highest. A correlation analysis revealed that WUE was positively correlated with CUE and negatively correlated with NUE. Moreover, WUE was negatively correlated with Nmass and SLA. These insights into the adaptability differences of woody plant species and life forms provide a scientific basis for the selection of appropriate species for sustainable forest plantations.

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Seasonality of PSII thermostability and water use efficiency of in situ mountainous Norway spruce (Picea abies)

Cited by 12 publications

References 83 publications

Ectomycorrhizal Fungi Modulate Pedunculate Oak’s Heat Stress Responses through the Alternation of Polyamines, Phenolics, and Osmotica Content

Ectomycorrhizal Fungi Modulate Pedunculate Oak’s Heat Stress Responses through the Alternation of Polyamines, Phenolics, and Osmotica Content

The photosynthetic eco-physiological adaptability of the endangered plant Tetracentron sinense to different habitats and altitudes

Leaf Traits and Resource Use Efficiencies of 19 Woody Plant Species in a Plantation in Fangshan, Beijing, China

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