The response of Ceratophyllum demersum L. and Myriophyllum spicatum L. to reduced, ambient, and enhanced ultraviolet-B radiation

Germ, Mateja; Mazej, Zdenka; Gaberščik, Alenka; Sedej, Tadeja Trošt

doi:10.1007/s10750-006-0160-x

Cited by 15 publications

(3 citation statements)

References 19 publications

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“…We also observed a decrease in the production of UV-absorbing substances, which are various phenolic substances that present an efficient UV radiation filter (Rozema et al 2002) and have a strong antioxidant and antibacterial effect, acting as radical scavengers and biocides (Pietarinen et al 2006). Their production is an energetically demanding process (Germ et al 2006). Therefore, the synthesis of these substances is the result of a trade-off between their production and investment of plants in primary metabolism.…”

Section: Discussionmentioning

confidence: 90%

Corylus avellana bark optical properties differ during and out of the vegetation season

Grašič,

Malkoč,

Gaberščik

2020

ABS

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We compared different bark traits of the common hazel (Corylus avellana L.) in four different months during the vegetation season (September, November) and out of the vegetation season (January, February) to get an insight into the changes in bark morphological, biochemical, and optical properties. Since bark of woody plants contains a layer of chlorenchyma, which can harvest transmitted light and perform photosynthesis, we also measured bark potential photochemical efficiency of photosystem II. The values of the latter parameter decreased during the research period, ranging from 0.77 in September to 0.22 in February. This could be attributed to low temperatures. The shapes of the bark reflectance curves were similar between the four samplings, with a peak in red and pronounced reflectance in the near-infrared spectrum. However, the level of reflectance differed between the four samplings. Regarding the time of the season, we obtained the most pronounced changes in the green, yellow, and red reflectance spectra. Light reflectance in these regions was positively related with chlorophyll b and carotenoid contents, while it was negatively related with anthocyanins and UV-B–absorbing substances. Transmittance spectra showed less variability between the four samplings. Regarding the studied pigments, the most pronounced changes were obtained for anthocyanin and UV-B–absorbing substances contents, which decreased in accordance with decreasing environmental temperatures. On the contrary, the level of photosynthetic pigments remained high, thus enabling undisturbed primary metabolism.

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Section: Discussionmentioning

confidence: 90%

Corylus avellana bark optical properties differ during and out of the vegetation season

Grašič,

Malkoč,

Gaberščik

2020

ABS

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“…Photosynthesis and respiration of SAM such as Ceratophyllum sp. were also affected by solar UV radiation (Germ et al, 2006). According to Hanelt et al (2006), the yield of photosynthesis was reduced due to UV-B simulation during different transparency experiments conducted on aquatic macrophytes.…”

Section: Uv-b Radiationmentioning

confidence: 99%

Factors affecting the global distribution of Hydrilla verticillata (L. fil.) Royle: A review

Patrick

Florentine

2021

Weed Research

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Hydrilla verticillata (Hydrocharitaceae) is a submerged freshwater flowering plant within the monotypic genus. Over the geological periods, fossils of this family and genus have shown distinct diversifications between warm and cool fluctuations with more adaptations occurring in warmer periods and suppressions during severely cold paleoclimate changes. Recently, H. verticillata has shown a wide range of adaptive plasticity, allowing successful proliferation into non-native regions, whilst also undergoing unexplained disappearance from its native localities, and this phenomenon has stimulated this inquiry. Against this somewhat complex background, particular interest for this investigation has been focussed on an understanding of which aspects of climate change have contributed towards global adaptations and distribution patterns of H. verticillata. Whilst it is recognised that some of these changes are natural, other aggravating impacts are due to anthropogenic influences. Identifying the appropriate combinations of these climatic factors (temperature, rainfall, photoperiod), in concert with environmental (water level, CO 2 , salinity, eutrophication), geographical (altitude, latitude) and other factors (UV-B) are necessary precursors for instituting appropriate management strategies. In this respect, control measures are needed in non-native regions and restoration of this plant in native habitats are essential for its ecologically balanced global distribution.

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“…Submerged aquatic plants (i.e. C. demersum and M. spicatum) are cosmopolitan species, colonising mainly eutrophic stagnant and flowing waters (Germ et al, 2006). They exhibit a similar life form, having similar "mesh-like"' architecture (i.e.…”

Section: Plant Sediment and Water Samplingmentioning

confidence: 99%

Phytochelatin synthesis in response to Hg uptake in aquatic plants near a chlor-alkali factory

et al. 2017

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The response of Ceratophyllum demersum L. and Myriophyllum spicatum L. to reduced, ambient, and enhanced ultraviolet-B radiation

Cited by 15 publications

References 19 publications

Corylus avellana bark optical properties differ during and out of the vegetation season

Corylus avellana bark optical properties differ during and out of the vegetation season

Factors affecting the global distribution of Hydrilla verticillata (L. fil.) Royle: A review

Phytochelatin synthesis in response to Hg uptake in aquatic plants near a chlor-alkali factory

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