The energy-demand and metabolic requirements of the plant cells differ under changing
environmental conditions and therefore, a well-regulated interaction and reciprocal
communication between different cellular compartments is necessary for an optimal
development and growth. Signals that sense changes in the organelles and transduce
them to the nucleus are referred to as retrograde and are critical to allow adaptation
of the bioenergetic state of the organelles. The mitochondrial retrograde signalling
pathway in plants is not well understood and the molecules that act as retrograde
signals have not been identified. The aim of my research is to investigate retrograde
signalling from mitochondrion to nucleus in Arabidopsis thaliana. My work so far
was focussed on redox regulation processes in plant cells, oxidative stress and
the characterization of antioxidant defense systems, like peroxiredoxins.
Morgan MJ, Lehmann M, Schwarzländer M, Baxter CJ, Sienkiewicz-Porzucek A, Williams TC, Schauer N, Fernie AR, Fricker MD, Ratcliffe RG, Sweetlove LJ, Finkemeier I (2008) Decrease in manganese superoxide dismutase leads to reduced root growth and affects tricarboxylic Acid cycle flux and mitochondrial redox homeostasis. Plant Physiol. 147(1):101-14.
Romero-Puertas MC, Laxa M, Mattè A, Zaninotto F, Finkemeier I, Jones AM, Perazzolli M, Vandelle E, Dietz KJ, Delledonne M (2007) S-Nitrosylation of Peroxiredoxin II E Promotes Peroxynitrite-Mediated Tyrosine
Nitration. Plant Cell 19, 4120-4130.
Barranco-Medina S, Krell T, Finkemeier I, Sevilla F, Lázaro JJ, Dietz KJ (2007) Biochemical and molecular characterization of the mitochondrial peroxiredoxin PsPrxII F from Pisum sativum. Plant Physiol Biochem. 45(10-11):729-39.
Gama F, Keech O, Eymery F, Finkemeier I, Gardeström P, Dietz KJ, Rey P, Jacquot
JP, Rouhier N (2007) The mitochondrial type II peroxiredoxin from poplar. Physiol.
Plant. 129, 196 – 206.
Finkemeier I, Sweetlove LJ (2006) Signalling in primary metabolism. New Phytol.
171(3), 445-7.
Dietz KJ, Jacob S, Oelze ML, Laxa M, Tognetti V, de Miranda SM, Baier M, Finkemeier
I (2006) The function of peroxiredoxins in plant organelle redox metabolism. J Exp
Bot. 57(8), 1697-709.
Lamkemeyer P, Laxa M, Collin V, Li W, Finkemeier I, Schottler MA, Holtkamp V, Tognetti
VB, Issakidis-Bourguet E, Kandlbinder A, Weis E, Miginiac-Maslow M, Dietz KJ (2006)
Peroxiredoxin Q of Arabidopsis thaliana is attached to the thylakoids and functions
in context of photosynthesis. Plant J. 45(6):968-81.
Groten K, Dutilleul C, van Heerden PD, Vanacker H, Bernard S, Finkemeier I, Dietz
KJ, Foyer CH (2006) Redox regulation of peroxiredoxin and proteinases by ascorbate
and thiols during pea root nodule senescence. FEBS Lett. 580(5):1269-76.
Dietz KJ, Lamkemeyer P, Finkemeier I, Li W-X, Kahmann U, Stork T, Baier M (2005)
The function of chloroplast peroxiredoxins in peroxide detoxification and redox
signalling in context of photosynthesis. Proceedings of the International Congress
of Photosynthesis. van der Est A, Bruce D, eds., Montreal, Canada.
Rouhier N, Villarejo A, Srivastava M, Gelhaye E, Keech O, Droux, Finkemeier I, Samuelsson
G, Dietz KJ, Jacquot JP, Wingsle G (2005) Identification of plant glutaredoxin targets.
Antioxidants and Redox Signalling, 7, 919-929.
Dietz KJ, Stork T, Finkemeier I, Lamkemeyer P, Li WX, El-Tayeb MA, Michel KP, Baier
M, Pistorius E (2005) The role of peroxiredoxins in oxygenic photosynthesis of cyanobacteria
and higher plants: peroxide detoxification or redox sensing? In: Photoprotection,
photoinhibition, gene regulation, and environment. Demmig-Adams B, Adams W, Mattoo
A, eds., Chapter 19, 303 – 319.
Finkemeier I, Goodman M, Lamkemeyer P, Kandlbinder A, Sweetlove LJ, Dietz KJ (2005)
The mitochondrial type II peroxiredoxin F is essential for redox homeostasis and
root growth of Arabidopsis thaliana under stress. Journal of Biological Chemistry,
280(13),12168-80.
*Kandlbinder A, *Finkemeier I, Wormuth D, Hanitzsch M, Dietz KJ (2004) The antioxidant
status of photosynthesising leaves under nutrient deficiency: redox regulation,
gene expression and antioxidant activity in Arabidopsis thaliana. Physiologia Plantarum,
Special Issue on Redox Regulation, 120, 63-73 (*both authors contributed equally
to the work).
Sharma S, Kaul S, Metwally A, Goyal K, Finkemeier I, Dietz KJ (2004) Cd phytotoxicity
to barley (Hordeum vulgare) as affected by varying Fe nutritional status. Plant
Science, 166(5), 1287-1295.
Horling F, Lamkemeyer P, König J, Finkemeier I, Baier M, Kandlbinder A, Dietz KJ
(2003) Divergent light-, ascorbate- and oxidative stress-dependent regulation of
expression of the peroxiredoxin gene family in Arabidopsis thaliana. Plant Physiology,
131, 317-325.
Metwally A, Finkemeier I, Georgi M, Dietz KJ (2003) Salicylic acid alleviates the
cadmium toxicity in barley (Hordeum vulgare) seedlings. Plant Physiology 132, 272-281.
Finkemeier I, Kluge C, Metwally A, Georgi M, Grotjohann N, Dietz KJ (2003) Alterations
in Cd-induced gene expression under nitrogen deficiency in Hordeum vulgare. Plant,
Cell and Environment, 26, 821-833.
Full Publication List (while at this department)