Aud Else Berglen Eriksen

Emerita
Image of Aud Else Berglen Eriksen
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Mobile phone 90793310
Room U305
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Visiting address Blindernveien 31 0371 OSLO

Plant physiology is my special field with a focus on eco- and stress physiology. I have worked with the effects of air pollution on plants, in particular the effects of ground-level ozone. Crop plants and plants from natural vegetation were used in the studies of ozone effects conducted in the field and in the Phytotron at the Department of Biosciences under environmentally controlled conditions and facilities for creation of different climatic and stress scenario. The severity of the ozone injuries of the plants, are dependent on the ozone concentration in the air and the stomata opening which regulate the ozone uptake and the plants daily dose of ozone. The ozone induced injuries seemed to be more serious in northern part of Europe even though the ozone concentration in the air was lower. A long photoperiod in the summer time is characteristic for the northern part of Europe, which increase stomata opening time and the ozone uptake. In addition the long photoperiod seemed to enhance the plants ozone sensitivity and thereby increase the ozone induced injuries. This was a phytochrome-mediated response, with a short night or a long night regulating response pathways. Short night (long day) increased the ozone injuries.

 

Subclover (Trifolium subterraneum) is used as a biological indicator as it displays visible damage to leaves at low levels of ozone.

Ozone damaged leaves analyzed in vivo with infrared picture Technology

 

 

 

 

 

 

 

 

 

 

 

Since 2012 the research projects have been concentrated on alternative and insecticide free   protection of conifer seedlings against pine weevils (Hylobius abietis) feeding on the stem bark.  At reforestation up to 80 to 90 % of the seedlings can be killed. Treatment of the seedlings with insecticide have been a solution of this problem, but the use of insecticides have a negative effect on the environment in the forest, on pollinating insects and the people handling seedling either in the nurseries or  in the forest.

From 2012 to 2015 an alternative protection method was developed further at the EU-WeevilSTOP project (supported by the EC 7th framework program) which represented fifteen partners and seven different countries. This alternative method consisted of a wax cover on the spruce seedling stem from the root neck and half up the stem. The conifer seedlings should be protected for two years by means of the physical barrier the wax cover created. The biological effects of wax on the conifer seedlings were studied thoroughly and the experiments were conducted both in the field and in the Phytotron. A prototype of an automatic waxing machine was developed.

A new research project, ALVOGRAN, from 2015 to 2017 continued to test the wax protection properties and the biological effects of the wax, the spruce seedlings age and the root mass.  The protection capability of wax was compared to insecticide (Merit Forest, Neonicotinoid) treatment method. After two years the wax protected had the highest number of living seedling and the lowest number of plants attacked pine weevil. The field area, a clear-cut coast forest had a heavy pine weevil problem.

The research project BiVaGran started in 2016 and will be finished in 2017. The wax is warm (80 o C) and fluid when conifer seedling stems are covered with wax. The seedlings are immediately cooled in cold water and heating effects are avoided. This heat stress will be tested, temperature gradients from the bark into the phloem and xylem measured and heat stress effects on different parts of the seedlings tested.  This project will collaborate with the University of Swansea about mixing additives the wax formula to increase the range of uses.        

Tags: Plant physiology, Ecology, Climate change, Forest pest, Greenhouse tech

Publications

Articles in international journals (2005-2017):

Berg,T.C., Gundersen, L.L., Eriksen, A.B., Malterud, K.E. 2005. Synthesis of optically active 6-alkynyl- and 6-alkylpurines as cytokinin analogs and inhibitors of 15-lipoxygenase; Studies of intramolecular cyclization of 6-(hydroxyalkyn-1-yl) purines. European Journal of Organic Chemistry: 4988-4994

Bråthe, A., Gundersen, L.L., Rise, F., Eriksen, A.B. 2005. 6-Cyclopropylpurines as Novel Potent Analogs of Cytokinins. Journal of plant growth regulation; 24:41-45

Stave, Jørn; Oba, G; Eriksen, A.B., Nordal, I., Stenseth, N. C. 2005; Seedling growth of Acacia tortilis and Faidherbia albida in response to simulated groundwater tables. Forest Ecology and Management: 212:367-375.

Pleijel, H., Eriksen, A.B., Danielsson, H., Bondesson, N., Sellden, G.. 2006. Differential ozone sensitivity in an old and a modern Swedish wheat cultivar - grain yield and quality, leaf chlorophyll and stomatal conductance. Environmental and Experimental Botany; 56(1):63-71. 

Aarnes, H., Eriksen, A.B., Petersen, D., Rise, F. 2007. Accumulation of ammonium in Norway spruce (Picea abies) seedlings measured by in vivo 14N-NMR. Journal of Experimental Botany, 58(5):929-934.

Vollsnes, A., Eriksen, A.B., Otterholt, E., Kvaal, K., Oxaal, U., Futsaether, C. 2009. Visible foliar injury and infrared imaging show that daylength affects short-term recovery after ozone stress in Trifolium subterraneum. Journal of Experimental Botany. 60 (13): 3677-3686.

Futsaether, CM; Vollsnes, A; Kruse, OMO; Otterholt, E; Kvaal, K; Eriksen, AB. 2009. Effects of the Nordic photoperiod on ozone sensitivity and repair in different clover ecotypes studied using infrared imaging. Ambio. 38(8): 437-442.

Vollsnes, A; Kruse, OMO; Eriksen, AB; Oxaal, U., Futsaether, C. 2010. In vivo root growth dynamics of ozone exposed Trifolium subterraneum. Journal of Environmental and Experimental Botany. 69: 183-188.

Eriksen, Aud Else Berglen; Vollsnes, Ane Victoria; Futsæther, Cecilia Marie & Kruse, Ole Mathis Opstad (2012). Reversible phytochrome regulation influenced the severity of ozone-induced visible foliar injuries in Trifolium subterraneum L. Plant growth regulation. 68(3): 517- 523. doi: 10.1007/s10725-012-9729-8

Futsæther, Cecilia Marie; Vollsnes, Ane Victoria; Kruse, Ole Mathis Opstad; Indahl, Ulf Geir; Kvaal, Knut & Eriksen, Aud Else Berglen (2015). Daylength influences the response of three clover species (Trifolium spp.) to short-term ozone stress. Boreal environment research.  ISSN 1239-6095.  20(1):  90-104
 

 

  • Mwafongo, Elizabeth Brighton Mvula; Vollsnes, Ane Victoria; Bjorå, Charlotte Sletten; Nordal, Inger & Eriksen, Aud Else Berglen (2017). Leaf mottling/variegation and shape in the Ledebouria revoluta complex ? Development, stability and putative function. Flora: Morphologie, Geobotanik, Oekophysiologie.  ISSN 0367-2530.  236-237, s 33- 43 . doi: 10.1016/j.flora.2017.09.009
  • Futsæther, Cecilia Marie; Vollsnes, Ane Victoria; Kruse, Ole Mathis Opstad; Indahl, Ulf Geir; Kvaal, Knut & Eriksen, Aud Else Berglen (2015). Daylength influences the response of three clover species (Trifolium spp.) to short-term ozone stress. Boreal environment research.  ISSN 1239-6095.  20(1), s 90- 104 Full text in Research Archive. Show summary
  • Eriksen, Aud Else Berglen; Vollsnes, Ane Victoria; Futsæther, Cecilia Marie & Kruse, Ole Mathis Opstad (2012). Reversible phytochrome regulation influenced the severity of ozone-induced visible foliar injuries in Trifolium subterraneum L. Plant growth regulation (Print).  ISSN 0167-6903.  68(3), s 517- 523 . doi: 10.1007/s10725-012-9729-8
  • Vollsnes, Ane Victoria; Kruse, Ole Mathis Opstad; Eriksen, Aud Else Berglen; Oxaal, Unni & Futsæther, Cecilia (2010). In vivo root growth dynamics of ozone exposed Trifolium subterraneum. Environmental and Experimental Botany.  ISSN 0098-8472.  69(2), s 183- 188 . doi: 10.1016/j.envexpbot.2010.03.007 Show summary
  • Futsaether, Cecilia; Vollsnes, Ane; Kruse, Ole Mathis Opstad; Otterholt, Eli; Kvaal, Knut & Eriksen, Aud Else Berglen (2009). Effects of the Nordic Photoperiod on Ozone Sensitivity and Repair in Different Clover Species Studied Using Infrared Imaging. Ambio.  ISSN 0044-7447.  38(8), s 437- 442 . doi: 10.1579/0044-7447-38.8.437
  • Vollsnes, Ane; Eriksen, Aud Else Berglen; Otterholt, Eli; Kvaal, Knut; Oxaal, Unni & Futsaether, Cecilia (2009). Visible foliar injury and infrared imaging show that daylength affects short-term recovery after ozone stress in Trifolium subterraneum. Journal of Experimental Botany.  ISSN 0022-0957.  60(13), s 3677- 3686 . doi: 10.1093/jxb/erp213
  • Aarnes, Halvor; Eriksen, Aud Else Berglen; Petersen, Dirk & Rise, Frode (2007). Accumulation of ammonium in Norway spruce (Picea abies) seedlings measured by in vivo 14N-NMR. Journal of Experimental Botany.  ISSN 0022-0957.  58(5), s 929- 934 . doi: 10.1093/jxb/erl247 Show summary
  • Pleijel, Håkan; Eriksen, Aud Else Berglen; Danielsson, Helene; Bondesson, N & Sellden, Gun (2006). Differential ozone sensitivity in an old and a modem Swedish wheat cultivar - grain yield and quality, leaf chlorophyll and stomatal conductance. Environmental and Experimental Botany.  ISSN 0098-8472.  56(1), s 63- 71 . doi: 10.1016/j.envexpbot.2005.01.00
  • Berg, Tom Christian; Gundersen, Lise-Lotte; Eriksen, Aud Else Berglen & Malterud, Karl Egil (2005). Synthesis of optically active 6-alkynyl- and 6-alkylpurines as cytokinin analogs and inhibitors of 15-lipoxygenase; Studies of intramolecular cyclization of 6-(hydroxyalkyn-1-yl)purines. European Journal of Organic Chemistry.  ISSN 1434-193X.  s 4988- 4994
  • Bråthe, Anders; Gundersen, Lise-Lotte; Rise, Frode & Eriksen, Aud Else Berglen (2005). 6-Cyclopropylpurines as Novel Potent Analogs of Cytokinins. Journal of Plant Growth Regulation.  ISSN 0721-7595.  24, s 41- 45
  • Stave, Jørn; Oba, Gufu; Eriksen, Aud Berglen; Nordal, Inger & Stenseth, Nils Christian (2005). Seedling growth of Acacia tortilis and Faidherbia albida in response to simulated groundwater tables. Forest Ecology and Management.  ISSN 0378-1127.  212(01.mar), s 367- 375 Show summary
  • Stave, Jørn; Oba, G; Eriksen, Aud Else Berglen; Nordal, Inger & Stenseth, Nils Christian (2005). Seedling growth of Acacia tortilis and Faidherbia albida in response to simulated groundwater tables. Forest Ecology and Management.  ISSN 0378-1127.  212, s 367- 375
  • Andresen, Geir; Eriksen, Aud Else Berglen; Dalhus, Bjørn; Gundersen, Lise-Lotte & Rise, Frode (2001). Synthesis of 6-substituted purin-2-ones with potential cytokinin activity. Journal of the Chemical Society. Perkin transactions 1.  ISSN 0300-922X.  s 1662- 1672 Show summary
  • Bråthe, Anders; Gundersen, Lise-Lotte; Rise, Frode; Eriksen, Aud Else Berglen; Vollsnes, Ane & Wang, Linnea (1999). Synthesis of 6-Alkenyl- and 6-Alkynylpurines with Cytokinin Activity. Tetrahedron.  ISSN 0040-4020.  55, s 211- 288
  • Nordal, Inger; Haraldsen, Kirsten Borse; Ergon, Åshild & Eriksen, Aud Berglen (1999). Copper resistance and genetic diversity in Lychnis alpina (Caryophyllacea) populations on mining sites. Folia Geobotanica.  ISSN 1211-9520.  34, s 471- 481
  • Nordal, Inger; Haraldsen, Kirsten Borse; Ergon, Åshild & Eriksen, Aud Else Berglen (1999). Copper resistance and genetic diversity in Lychnis alpina (Caryophyllaceae) populations. Folia Geobotanica.  ISSN 1211-9520.  34 Show summary
  • Nordal, Inger; Eriksen, Aud Else Berglen; Laane, Carl Morten Motzfeldt & Solberg, Y (1986). Biogeographic and biosystematic studies in the genus Cochlearia in northern Scandinavia. Acta Universitatis Upsaliensis Symbolae Botanicae Upsalienses.  ISSN 0372-4654.  XXVII(2) Show summary

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  • Elizabeth, Mwafongo; Vollsnes, Ane Victoria; Charlotte Sletten, Bjorå; Inger, Nordal & Eriksen, Aud Else Berglen (2017). Anthocyaniner, pigmenter med mange roller.
  • Jeanette, Viken; Vollsnes, Ane Victoria; Eriksen, Aud Else Berglen; Berntsen, Terje Koren & Stordal, Frode (2017). DO3SEiNORD.
  • Vollsnes, Ane Victoria & Eriksen, Aud Else Berglen (2017). Granplanting på hogstfelt uten insektsgift.
  • Vollsnes, Ane Victoria & Eriksen, Aud Else Berglen (2017). Heat stress tolerance limit in Norway spruce (Picea abies) seedlings.
  • Vollsnes, Ane Victoria & Eriksen, Aud Else Berglen (2017). Heat stress tolerance limit in Norway spruce (Picea abies) seedlings.
  • Vollsnes, Ane Victoria & Eriksen, Aud Else Berglen (2017). Hvorfor vokse planter?.
  • Vollsnes, Ane Victoria & Eriksen, Aud Else Berglen (2017). Reforestation without insecticides. Protecting spruce seedlings against pine weevils on a clear-felling..
  • Vollsnes, Ane Victoria; Eriksen, Aud Else Berglen; Håvard, Kauserud; Terje, Berntsen & Frode, Stordal (2017). Prosjekt som starter i 2017. The double punch: ozone and climate stresses on vegetation.
  • Vollsnes, Ane Victoria; Eriksen, Aud Else Berglen; Fløistad, Inger & Skjølaas, Dag (2016). Gransnutebillen møter motstand i Norge. Skog.  ISSN 1892-9990.  (3), s 12- 13
  • Eriksen, Aud Else Berglen (2014). Voks som beskyttelse mot gransnutebiller. Kort rapport om resultater fra EU-prosjektet WeevilSTOP.
  • Eriksen, Aud Else Berglen & Vollsnes, Ane Victoria (2014). Miljøvennlig beskyttelse av gran-planter mot snutebilleangrep.
  • Mwafongo, Elizabeth; Eriksen, Aud Else Berglen; Vollsnes, Ane Victoria; Bjorå, Charlotte Sletten & Nordal, Inger (2014). Leaf mottling in Ledebouria (Hyacinthaceae) – development, stability and putative function.
  • Vollsnes, Ane Victoria & Eriksen, Aud Else Berglen (2014). Stress responses of clovers are affected by ploidy level and daylength at northern latitudes.
  • Vollsnes, Ane Victoria & Eriksen, Aud Else Berglen (2014). WeevilSTOP-prosjektet.
  • Vollsnes, Ane Victoria; Eriksen, Aud Else Berglen & Melø, Thor Bernt (2014). Heat stressed Norway spruce saplings: needle light absorption, reflection and chlorophyll fluorescence.
  • Vollsnes, Ane Victoria; Eriksen, Aud Else Berglen & Melø, Thor Bernt (2014). Needle light absorption and chlorophyll fluorescence in Norway spruce saplings protected against pine weevil feeding.
  • Eriksen, Aud Else Berglen & Jemterud, Torkild (2013, 01. oktober). Ekko - et akutelt samfunnsprogram 1. okt 2013 Fytotronen. [Radio].  NRK P2.
  • Eriksen, Aud Else Berglen & Vollsnes, Ane Victoria (2013). A comparative anatomical study in a diploid and tetraploid red clover (Trifolium pratense L.).
  • Eriksen, Aud Else Berglen & Vollsnes, Ane Victoria (2013). Med voks mot snutebilla. Skog.  ISSN 1892-9990.  s 24- 25
  • Futsæther, Cecilia Marie; Kruse, Ole Mathis Opstad; Vollsnes, Ane Victoria & Eriksen, Aud Else Berglen (2013, 04. november). Større ozonskader i lyse sommernetter. [Internett].  forskning.no.
  • Jemterud, Torkild & Eriksen, Aud Else Berglen (2013, 24. september). Ekko - et aktuelt samfunnsprogram 24. sept 2013 Hvete - forskning og politikk. [Radio].  NRK P2.
  • Vollsnes, Ane Victoria & Eriksen, Aud Else Berglen (2013). The effect of application of warm wax on lower stem of Norway spruce seedlings; needle and bark chlorophyll.
  • Eriksen, Aud Else Berglen (2012). Mat fra gressfamilien.
  • Eriksen, Aud Else Berglen (2012). Samspill mellom daglengde og blomstring.
  • Eriksen, Aud Else Berglen & Lising, Victor (2012). Bonsai.
  • Vollsnes, Ane Victoria & Eriksen, Aud Else Berglen (2012). Do the effects of climate change depend on plant ploidy level? Two cultivars of Trifolium pratense L. with different ploidy level responded differently to increasing ground level ozone and temperature.
  • Vollsnes, Ane Victoria; Eriksen, Aud Else Berglen; Futsæther, Cecilia Marie & Kruse, Ole Mathis Opstad (2011). Night-time P(r):P(fr) ratio and daytime stomatal ozone uptake.
  • Futsæther, Cecilia; Kruse, Ole Mathis Opstad; Kvaal, Knut; Vollsnes, Ane V. & Eriksen, Aud Berglen (2010). Plant responses to ozone stress under northern light conditions. Show summary
  • Kruse, Ole Mathis Opstad; Futsaether, Cecilia; Vollsnes, Ane; Eriksen, Aud Else Berglen & Kvaal, Knut (2009). Detecting and quantifying ozone damage on leaves.
  • Kruse, Ole Mathis Opstad; Futsæther, Cecilia; Landrø, Hilde; Vollsnes, Ane V.; Eriksen, Aud Berglen & Kvaal, Knut (2009). A method for visualising ozone damage on clover leaves. Show summary
  • Kruse, Ole Mathis Opstad; Futsæther, Cecilia; Vollsnes, Ane V.; Eriksen, Aud Berglen & Kvaal, Knut (2009). Detecting and quantifying ozone damage on leaves. Show summary
  • Kruse, Ole Mathis Opstad; Landrø, Hilde; Kvaal, Knut; Vollsnes, Ane; Eriksen, Aud Else Berglen & Futsaether, Cecilia (2009). A method for visualising ozone damage on clover leaves.
  • Eriksen, Aud Else Berglen (2009). Die Anwendung von Wachs und Auxin bei der Veredelung und Bewurzelung von Reben (Vitis vinifera).
  • Berg, Tom Christian; Gundersen, Lise-Lotte & Eriksen, Aud Else Berglen (2006). Synthesis of Optically Active 6-Alkynyl- and 6-Alkylpurines as Cytokinin Analogs.
  • Otterholt, Eli; Eriksen, Aud Berglen; Vollsnes, Ane V.; Futsæther, Cecilia & Oxaal, Unni (2006). Effects of ozone on root development and leaf temperature in subterranean clover.
  • Otterholt, Eli; Vollsnes, Ane V.; Eriksen, Aud Berglen; Futsæther, Cecilia & Oxaal, Unni (2006). Ozone induced changes in root growth and leaf temperature in clover.
  • Vollsnes, Ane V.; Eriksen, Aud Berglen; Oxaal, Unni & Futsæther, Cecilia (2006). Does ozone affect the root growth of plants?.
  • Aarnes, Halvor; Eriksen, Aud Else Berglen; Petersen, Dirk & Rise, Frode (2004). In Vivo 14N-NMR and 31P-NMR: intracellular pH in Norway spruce (Picea abies) seedlings grown on ammonium or nitrate.
  • Jerstad, Ane; Vollsnes, Ane V.; Futsæther, Cecilia; Oxaal, Unni & Eriksen, Aud Berglen (2004). Does ozone affect the Root growth of plants?.
  • Vollsnes, Ane V.; Jerstad, Ane; Futsæther, Cecilia; Oxaal, Unni; Melø, Thor Bernt & Eriksen, Aud Berglen (2004). Plant root morphology responses to ozone or illumination.
  • Vollsnes, Ane; Jerstad, Ane; Futsaether, Cecilia; Oxaal, Unni & Eriksen, Aud Else Berglen (2004). Does ozone affect the root growth of plants.
  • Vollsnes, Ane; Jerstad, Ane; Futsæther, C.; Oxaal, Unni & Eriksen, Aud Else Berglen (2004). Root growth dynamics in ozone treated plants of Trifolium subterraneum.
  • Eriksen, Aud Else Berglen (2002). Gasstap av nitrogen, I:  Sur nedbør - tilførsel og virkning.  Landbruksforlaget.  ISBN 82-529-2105-1.  kapitell 3.  s 95 - 96
  • Eriksen, Aud Else Berglen; Helmen, Stina; Husa, Stine; Høgåsen, Tore; Persson, Kristin & Sellden, Gun (2002). AOT 40 responses in relation to plant strategy.
  • Sellden, Gun & Eriksen, Aud Else Berglen (2000). Ozone-induced oxidative stress in plants - plant response in relation to plant strategy.
  • Bråthe, Anders; Gundersen, Lise-Lotte; Rise, Frode; Eriksen, Aud Else Berglen & Wang, Linnea (1998). Synthesis of Cytokinin Analogues.

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Published Nov. 3, 2010 3:26 PM - Last modified Dec. 18, 2017 2:39 PM