Effect of UV radiation and altitude characteristics on the functional traits and leaf optical properties in Saxifraga hostii at the alpine and montane sites in the Slovenian Alps

Sedej, Tadeja Trošt; Erznožnik, Tina; Rovtar, Jerneja

doi:10.1039/c9pp00032a

Cited by 17 publications

(11 citation statements)

References 63 publications

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“…In addition, we speculated that the light response elements are also related to the UV stress response. Ultraviolet radiation can affect plant growth and morphogenesis, especially in places with sufficient light, and high doses of UV-B, which can affect physiological and biochemical processes [ 31 ].…”

Section: Discussionmentioning

confidence: 99%

“…The buckwheat is usually planted in habitats with low rainfall, low temperatures, and high altitudes [ 27 , 28 ]. In addition, sufficient light and ultraviolet radiation, for example, high UV-B doses, can affectthe physiological and biochemical processes of plants [ 29 – 31 ], contributing to unusual energy conversion efficiency and plant tissue function [ 32 ].To sum up, the growth, yield, and quality of buckwheat are severely threatened by abiotic stress factors or their combinations. To date, many transcription factors in Tartary buckwheat have been well-studied.…”

Section: Introductionmentioning

confidence: 99%

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Systematic analysis and expression profiles of TCP gene family in Tartary buckwheat (Fagopyrum tataricum (L.) Gaertn.) revealed the potential function of FtTCP15 and FtTCP18 in response to abiotic stress

Yang

Hou

et al. 2022

BMC Genomics

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Background As transcription factors, the TCP genes are considered to be promising targets for crop enhancement for their responses to abiotic stresses. However, information on the systematic characterization and functional expression profiles under abiotic stress of TCPs in Tartary buckwheat (Fagopyrum tataricum (L.) Gaertn.) is limited. Results In this study, we identified 26 FtTCPs and named them according to their position on the chromosomes. Phylogenetic tree, gene structure, duplication events, and cis-acting elements were further studied and syntenic analysis was conducted to explore the bioinformatic traits of the FtTCP gene family. Subsequently, 12 FtTCP genes were selected for expression analysis under cold, dark, heat, salt, UV, and waterlogging (WL) treatments by qRT-PCR. The spatio-temporal specificity, correlation analysis of gene expression levels and interaction network prediction revealed the potential function of FtTCP15 and FtTCP18 in response to abiotic stresses. Moreover, subcellular localization confirmed that FtTCP15 and FtTCP18 localized in the nucleus function as transcription factors. Conclusions In this research, 26 TCP genes were identified in Tartary buckwheat, and their structures and functions have been systematically explored. Our results reveal that the FtTCP15 and FtTCP18 have special cis-elements in response to abiotic stress and conserved nature in evolution, indicating they could be promising candidates for further functional verification under multiple abiotic stresses.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Systematic analysis and expression profiles of TCP gene family in Tartary buckwheat (Fagopyrum tataricum (L.) Gaertn.) revealed the potential function of FtTCP15 and FtTCP18 in response to abiotic stress

Yang

Hou

et al. 2022

BMC Genomics

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“…Trošt Sedej et al [ 40 ] reported that UV radiation increased stomatal conductance of Saxifraga hostii at high altitudes but not at low altitudes. S. hostii also showed trends for higher stomatal density and smaller stomatal length when exposed to the near-ambient UV, which corresponded to the higher stomatal conductance.…”

Section: Discussionmentioning

confidence: 99%

“…Reduced UV-B radiation has an outcome in lowered chlorophyll contents in Zea mays and Citrus aurantifolia [ 47 , 48 ]. On the contrary, the chlorophyll contents increased in Saxifraga hostii under reduced UV-B radiation at montane and subalpine altitudes in September, which can indicate later senescence under reduced UV-B radiation [ 40 ]. High UV radiation can induce genes associated with senescence and consequently affect chlorophyll contents [ 49 ].…”

Section: Discussionmentioning

confidence: 99%

“…Some species modulate their UV screening properties within minutes to hours; these changes are driven by UV radiation [ 51 ]. In other alpine species, such as H. nummularium and S. hostii , the UV AC contents were mostly unaffected by the diverse environmental conditions, which indicated their high constitutive UV AC contents [ 40 , 52 ]. Constitutive levels of UV AC contents under increased UV radiation have been correlated with plant tolerance to UV radiation [ 53 ].…”

Section: Discussionmentioning

confidence: 99%

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Alchemilla monticola Opiz. Functional Traits Respond to Diverse Alpine Environmental Conditions in Karavanke, Slovenia

Sedej

Turk

2022

Plants

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Alpine plants are exposed to demanding environmental conditions, such as high ultraviolet (UV) and photosynthetic radiation, extreme temperatures, drought, and nutrient deficiencies. Alpine plants adapt and acclimate to harsh conditions, developing several strategies, including biochemical, physiological, and optical responses. However, alpine plants’ survival strategies are hardly researched due to time-consuming and complex experimental conditions, which are supported by scarce studies. Our study focused on the functional traits of the alpine plant Alchemilla monticola Opiz (hairy lady’s mantle) growing at two different altitudes (1500, 2000 m a.s.l.) and two different UV exposures per altitude. Near-ambient (UV) and reduced (UV-) UV radiations were provided by using two sorts of UV absorbing filters; temperatures were monitored hourly. The experimental plots were located at Tegoška Gora, Karavanke, Slovenia. Functional traits: physiological, biochemical, and optical characteristics were recorded three times during the growing season. A. monticola showed high maximum photochemical efficiency at both altitudes throughout the season, which confirms good adaptation and acclimatization of the plant. Furthermore, significantly higher maximum photochemical efficiency at the subalpine altitude coincided with significantly higher UV absorbing compounds (UV AC) contents at the subalpine compared to the montane altitude in August. A. monticola manifested high UV AC contents throughout the season, with significantly increased synthesis of UV AC contents in the subalpine conditions in August and September. The stomatal conductance rate increased with altitude and was correlated mostly to a lower temperature. A. monticola leaves did not transmit any UV spectrum, which corresponded to high total UV AC contents. The leaf transmittance of the photosynthetic spectrum increased at the subalpine altitude, while the transmittance of the green and yellow spectra increased under the reduced UV radiation in the autumn. A. monticola’s high photosynthetic spectrum transmittance at the subalpine altitude in the autumn might therefore be due to subalpine harsh environmental conditions, as well as plant ontogenetical phase.

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Synthetic and Natural UV Protective Agents for Textile Finishing

Sankaran

Kamboj

Samant

et al. 2021

Innovative and Emerging Technologies for Textile Dyeing and Finishing

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Effect of UV radiation and altitude characteristics on the functional traits and leaf optical properties in Saxifraga hostii at the alpine and montane sites in the Slovenian Alps

Abstract: UV radiation affects the biochemical, physiological and morphological responses of plants.

Cited by 17 publications

References 63 publications

Systematic analysis and expression profiles of TCP gene family in Tartary buckwheat (Fagopyrum tataricum (L.) Gaertn.) revealed the potential function of FtTCP15 and FtTCP18 in response to abiotic stress

Systematic analysis and expression profiles of TCP gene family in Tartary buckwheat (Fagopyrum tataricum (L.) Gaertn.) revealed the potential function of FtTCP15 and FtTCP18 in response to abiotic stress

Alchemilla monticola Opiz. Functional Traits Respond to Diverse Alpine Environmental Conditions in Karavanke, Slovenia

Synthetic and Natural UV Protective Agents for Textile Finishing

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