A Systems Biology Approach Identifies a R2R3 MYB Gene Subfamily with Distinct and Overlapping Functions in Regulation of Aliphatic Glucosinolates
- I. Sønderby, B. G. Hansen, Nanna Bjarnholt, C. Ticconi, B. Halkier, D. Kliebenstein
- BiologyPLoS ONE
- 19 December 2007
Three R2R3 MYB transcription factors regulating aliphatic glucosinolate biosynthesis in Arabidopsis provide a unique system within which to study the evolution of MYB regulatory factors and their downstream targets.
Metabolon formation and metabolic channeling in the biosynthesis of plant natural products.
- K. Jørgensen, A. Rasmussen, B. Møller
- BiologyCurrent opinion in plant biology
- 1 June 2005
Mass spectrometry imaging of plant metabolites--principles and possibilities.
- Nanna Bjarnholt, Bin Li, Janina D’Alvise, C. Janfelt
- ChemistryNatural product reports (Print)
- 15 May 2014
This review provides an introduction to the different MSI techniques and their applications in plant science, and the most common methods for sample preparation are described.
Cyanogenic glycosides: a case study for evolution and application of cytochromes P450
- S. Bak, S. M. Paquette, B. Møller
- Biology, Environmental SciencePhytochemistry Reviews
- 15 November 2006
The use of metabolic engineering using cytochromes P450 involved in biosynthesis of cyanogenic glycosides allows for the generation of acyanogenic cassava plants or cyanogenic Arabidopsis thaliana plants as well as L. japonicus and A. thalian a plants with altered cyanogenic, cyanoalkenyl or glucosinolate profiles.
The β-Glucosidases Responsible for Bioactivation of Hydroxynitrile Glucosides in Lotus japonicus1[W]
- A. V. Morant, Nanna Bjarnholt, S. Bak
- BiologyPlant Physiology
- 8 May 2008
Analysis of their individual substrate specificity profiles confirmed that both LjBGD2 and Lj BGD4 preferentially hydrolyze the hydroxynitrile glucoside-cleaving β-glucosidases present in L. japonicus.
Dhurrin metabolism in the developing grain of Sorghum bicolor (L.) Moench investigated by metabolite profiling and novel clustering analyses of time-resolved transcriptomic data
- L. Nielsen, P. Stuart, Nanna Bjarnholt
- BiologyBMC Genomics
- 13 December 2016
The results presented in this article reveal the existence of two endogenous dhurrin turnover pathways in sorghum, identify genes putatively involved in these transformations and show thatdhurrin in addition to its insect deterrent properties may serve as a storage form of reduced nitrogen.
Metabolism, excretion and avoidance of cyanogenic glucosides in insects with different feeding specialisations.
- Stefan Pentzold, Mika Zagrobelny, S. Bak
- Biology, Environmental ScienceInsect Biochemistry and Molecular Biology
- 1 November 2015
A recycling pathway for cyanogenic glycosides evidenced by the comparative metabolic profiling in three cyanogenic plant species.
- M. Pičmanová, Elizabeth Heather Jakobsen Neilson, Nanna Bjarnholt
- Environmental Science, ChemistryBiochemical Journal
- 1 August 2015
A potential recycling endogenous turnover pathway for cyanogenic glycosides is described in which reduced nitrogen and carbon are recovered for primary metabolism without the liberation of free HCN.
Characterization of barley leaf tissue using direct and indirect desorption electrospray ionization imaging mass spectrometry.
- Bin Li, Nanna Bjarnholt, S. Hansen, C. Janfelt
- Environmental ScienceJournal of Mass Spectrometry
- 1 December 2011
The study presents an example of how to overcome the morphological barriers from the plant surface and perform rapid and repeatable DESI imaging, contributing to the characterization of the recently developed method of indirect Desorption electrospray ionization imaging of plant material via porous Teflon imprints.
How Does Garlic Mustard Lure and Kill the West Virginia White Butterfly?
- Samantha L. Davis, Tina Frisch, Nanna Bjarnholt, D. Cipollini
- BiologyJournal of Chemical Ecology
- 23 September 2015
Sinigrin most likely contributes to the larval mortality observed, however, it is found that any effect of sinigrin on oviposition by P. virginiensis females is not observed, and further research needs to be done on non-glucosinolate contact cues, and volatile signals that may induce P.irginiensis ovipposition.