Blar i NTNU Open på forfatter "Rohloff, Jens"
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Metabolic cold acclimation of 'Polka' and 'Honeoye' strawberries under natural field conditions
Rohloff, Jens; Eidem, Petter; Davik, Jahn Eldar; Alsheikh-Yousef, Muath (Journal article; Peer reviewed, 2014)The winter hardiness of strawberry varieties used in perennial production systems varies greatly. Still, little information is available on how plant metabolism adapts to cold and freezing temperatures under natural ... -
Metabolic Response of Maize (Zea mays L.) Seedlings to both Drought and Heat Stress
Anku, Kenneth Eteme (Master thesis, 2017)The development of resistant maize (Zea mays) varieties against drought and heat is on the rise as these abiotic stress factors affect maize production. Plants including maize respond by altering their metabolism to produce ... -
Metabolite changes in conifer buds and needles during bud break - Norway spruce (Picea abies) and European silver fir (Abies alba)
Dhuli, Priyanka (Master thesis, 2011)Background and objective: This research is based on the study of metabolites in conifers buds, when exposed to sudden high temperature in controlled environmental conditions in greenhouse. The purpose of the study was to ... -
Metabolite changes in conifer buds and needles during forced bud break in Norway spruce (Picea abies) and European silver fir (Abies alba)
Dhuli, Priyanka; Rohloff, Jens; Strimbeck, Richard (Journal article; Peer reviewed, 2014)Environmental changes such as early spring and warm spells induce bud burst and photosynthetic processes in cold-acclimated coniferous trees and consequently, cellular metabolism in overwintering needles and buds. The ... -
Metabolite profiling reveals novel multi-level cold responses in the model Fragaria vesca (woodland strawberry)
Rohloff, Jens; Kopka, Joachim; Erban, Alexander; Winge, Per; Wilson, Robert Charles; Bones, Atle M.; Davik, Jahn Eldar; Randall, Stephen K,; Alsheikh, Muath (Journal article; Peer reviewed, 2012)Winter freezing damage is a crucial factor in overwintering crops such as the octoploid strawberry (Fragaria × ananassa Duch.) when grown in a perennial cultivation system. Our study aimed at assessing metabolic processes ... -
Molecular adaptations to phosphorus deprivation and comparison with nitrogen deprivation responses in the diatom Phaeodactylum tricornutum
Alipanah, Leila; Winge, Per; Rohloff, Jens; Brembu, Tore; Bones, Atle M. (Journal article; Peer reviewed, 2018)Phosphorus, an essential element for all living organisms, is a limiting nutrient in many regions of the ocean due to its fast recycling. Changes in phosphate (Pi) availability in aquatic systems affect diatom growth and ... -
Molecular cold responses for two strawberry cultivars: Comparison of proteomic and microarray analysis
Koehler, Gage; Randall, Stephen K,; Rohloff, Jens; Winge, Per; Wilson, Robert; Alsheikh, Muath (Journal article; Peer reviewed, 2012)A crucial consideration for strawberry producers in Norway and other northern countries is winter freezing damage. A long-term goal of the Norwegian strawberry breeding is to increase winter hardiness and to improve fruit ... -
'Myrosin cells' are not a prerequisite for aphid feeding on oilseed rape (Brassica napus) but affect host plant preferences
Borgen, Birgit Hafeld; Ahuja, Ishita; Thangstad, Ole Petter; Honne, Bjørn Ivar; Rohloff, Jens; Rossiter, John Trevor; Bones, Atle M. (Journal article; Peer reviewed, 2012)The enzyme myrosinase (EC 3.2.3.1.147) is present in specialised myrosin cells and forms part of the glucosinolate–myrosinase system, also known as ‘the mustard oil bomb’, which has an important role in the defence system ... -
Nutritional composition of bilberries (Vaccinium myrtillus L.) from forest fields in Norway – Effects of geographic origin, climate, fertilization and soil properties
Rohloff, Jens; Uleberg, Eivind; Nes, Arnfinn; Krogstad, Tore; Nestby, Rolf; Martinussen, Inger (Journal article; Peer reviewed, 2015)Effects of different environmental factors (origin, climate, fertilization and soil properties) on berry nutritional quality were studied in eight forest fields of bilberry (Vaccinium myrtillus) in Northern-, Mid- and ... -
Plant defence responses in oilseed rape MINELESS plants after attack by the cabbage moth Mamestra brassicae
Ahuja, Ishita; van Dam, Nicole; Winge, Per; Trælnes, Marianne; Heydorova, Aysel; Rohloff, Jens; Langaas, Mette; Bones, Atle M. (Journal article; Peer reviewed, 2015)The Brassicaceae family is characterized by a unique defence mechanism known as the ‘glucosinolate–myrosinase’ system. When insect herbivores attack plant tissues, glucosinolates are hydrolysed by the enzyme myrosinase (EC ... -
Proteomic study of low temperature responses in strawberry cultivars (Fragaria x ananassa Duchesne) that differ in cold tolerance
Koehler, Gage; Wilson, Robert; Goodpaster, John V.; Sønsteby, Anita; Lai, Xianyin; Witzmann, Frank A.; You, Jin-Sam; Rohloff, Jens; Randall, Stephen K,; Alsheikh-Yousef, Muath (Journal article; Peer reviewed, 2012)To gain insight into the molecular basis contributing to overwintering hardiness, a comprehensive proteomic analysis comparing crowns of Fragaria × ananassa (octoploid strawberry) cultivars that differ in freezing tolerance ... -
Protocol for a risk assessment of caffeine exposure from multiple sources
Carlsen, Monica Hauger; Devold, Tove Gulbrandsen; Granum, Berit; Lillegaard, Inger Therese L.; Mathisen, Gro Haarklou; Rasinger, Josef Daniel; Rohloff, Jens; Starrfelt, Jostein; Bruzell, Ellen Merete; Svendsen, Camilla; Husøy, Trine (Research report, 2020) -
Risk assessment of "other substances" – Caffeine. Opinion of the Panel on Food Additives, Flavourings, Processing Aids, Materials in Contact with Food and Cosmetics of the Norwegian Scientific Committee for Food Safety
Husøy, Trine; Mathisen, Gro Haarklou; Bruzell, Ellen Merete; Granum, Berit; Hetland, Ragna Bogen; Rohloff, Jens; Wicklund, Trude; Steffensen, Inger-Lise (VKM Report;, Research report, 2015)The Norwegian Scientific Committee for Food Safety (VKM) has, at the request of the Norwegian Food Safety Authority, assessed the risk of 100 or 300 mg/day of caffeine in food supplements and in energy drinks containing ... -
Risk assessment of "other substances" – Coenzyme Q10. Opinion of the Panel on Food Additives, Flavourings, Processing Aids, Materials in Contact with Food and Cosmetics of the Norwegian Scientific Committee for Food Safety
Herlofson, Bente Brokstad; Mathisen, Gro Haarklou; Bruzell, Ellen Merete; Granum, Berit; Hetland, Ragna Bogen; Husøy, Trine; Rohloff, Jens; Wicklund, Trude; Steffensen, Inger-Lise (VKM Report;, Research report, 2015)The Norwegian Scientific Committee for Food Safety (VKM) has, at the request of the Norwegian Food Safety Authority, assessed the risk of intake of 100 mg/day of coenzyme Q10 in food supplements. For the risk characterization, ... -
Risk assessment of "other substances" – D-Glucurono-γ-lactone. Opinion of the Panel on Food Additives, Flavourings, Processing Aids, Materials in Contact with Food and Cosmetics of the Norwegian Scientific Committee for Food Safety
Husøy, Trine; Bruzell, Ellen Merete; Granum, Berit; Hetland, Ragna Bogen; Rohloff, Jens; Wicklund, Trude; Steffensen, Inger-Lise (VKM Report;, Research report, 2015)The Norwegian Scientific Committee for Food Safety (Vitenskapskomiteen for mattrygghet, VKM) has, at the request of the Norwegian Food Safety Authority (Mattilsynet; NFSA), assessed the risk of "other substances" in food ... -
Risk assessment of "other substances" – D-Ribose. Opinion of the Panel on Food Additives, Flavourings, Processing Aids, Materials in Contact with Food and Cosmetics of the Norwegian Scientific Committee for Food Safety
Hetland, Ragna Bogen; Bruzell, Ellen Merete; Granum, Berit; Husøy, Trine; Rohloff, Jens; Wicklund, Trude; Steffensen, Inger-Lise (VKM Report;, Research report, 2016)The Norwegian Scientific Committee for Food Safety (VKM) has, at the request of theNorwegian Food Safety Authority, assessed the risk of intake of 3100 mg pe day and 6200 mg per day of D-ribose in food supplements. In the ... -
Risk assessment of "other substances" – Inositol. Opinion of the Panel on Food Additives, Flavourings, Processing Aids, Materials in Contact with Food and Cosmetics of the Norwegian Scientific Committee for Food Safety
Rohloff, Jens; Bruzell, Ellen Merete; Granum, Berit; Hetland, Ragna Bogen; Husøy, Trine; Wicklund, Trude; Steffensen, Inger-Lise (VKM Report;, Research report, 2015)The Norwegian Scientific Committee for Food Safety (VKM) has, at the request of the Norwegian Food Safety Authority, assessed the risk of intake of 10 mg inositol per 100 ml energy drink. Inositol occurs naturally in all ... -
Risk assessment of "other substances" – L-Carnitine and L-Carnitine-L-tartrate. Opinion of the Panel on Food Additives, Flavourings, Processing Aids, Materials in Contact with Food and Cosmetics of the Norwegian Scientific Committee for Food Safety
Bruzell, Ellen Merete; Granum, Berit; Hetland, Ragna Bogen; Husøy, Trine; Rohloff, Jens; Wicklund, Trude; Steffensen, Inger-Lise (VKM Report;, Research report, 2015)The Norwegian Scientific Committee for Food Safety (VKM) has, at the request of the Norwegian Food Safety Authority (NFSA), assessed the risk of 1500 mg/day of L-carnitine and 2250 mg/day of L-carnitine-L-tartrate in food ... -
Risk assessment of "other substances" – Lycopene. Opinion of the Panel on Food Additives, Flavourings, Processing Aids, Materials in Contact with Food and Cosmetics of the Norwegian Scientific Committee for Food Safety
Wicklund, Trude; Mathisen, Gro Haarklou; Bruzell, Ellen Merete; Granum, Berit; Hetland, Ragna Bogen; Husøy, Trine; Rohloff, Jens; Steffensen, Inger-Lise (VKM Report;, Research report, 2016)The Norwegian Scientific Committee for Food Safety (VKM) has, at the request of the Norwegian Food Safety Authority, assessed the risk of lycopene in food supplements. For the risk characterisation, the value used for ... -
Risk assessment of "other substances" – Piperine. Opinion of the Panel on Food Additives, Flavourings, Processing Aids, Materials in Contact with Food and Cosmetics of the Norwegian Scientific Committee for Food Safety
Rohloff, Jens; Bruzell, Ellen Merete; Granum, Berit; Hetland, Ragna Bogen; Husøy, Trine; Wicklund, Trude; Steffensen, Inger-Lise (VKM Report;, Research report, 2016)The Norwegian Scientific Committee for Food Safety (VKM) has, at the request of the Norwegian Food Safety Authority, assessed the risk of intake of 1.5 mg/day of piperine ((E,E)-piperine) in food supplements. Piperine is ...