Organization profile

Organisation Profile

Our group is interested in signalling cascades activated by reactive oxygen species (ROS). Endogenous processes in plants and various stress factors result in the formation of reactive oxygen species (ROS).

 

These various stress factors include but are not limited to elevated ozone, high light, heat, cold, high salt, pathogen infection and heavy metals, depending on the intensity these often lead to accumulation of ROS. High accumulation of ROS have been generally seen as detrimental; however, these molecules entail a great deal of information about metabolic processes in the chloroplast and mitochondria, and other cellular processes.

 

In response to these ROS, plant processes can focus on preventing the formation of these, aim to scavenge or initiate programmed cell death. How such responses come to place is of special interest to our lab. To study this we focus on perception, signalling and signal integration in response to ROS.

 

To discover the proteins that are involved in the response to these stresses our lab has performed (and is still in the process of performing) genetic screens using ozone as a tool to induce oxidative stress. From this screen, many interesting proteins were found and are still studied. Moreover, new proteins are being identified. Mutants such as rcd1-1, slac1-1 and ghr1-3 have previously been identified in our screening. Genetic, molecular, biochemical and microscopy approaches drive our understanding of the proteins that are involved in ROS-signaling cascades

International and National Collaboration Publications and projects within past five years.

Projects 2008 2015

Prime-XS: Identification of secreted peptides during tracheary elements differentiation

Tuominen, H., Stael, S., Gevaert, K. & Vainonen, J.

01/09/2014 → …

Project: Research project

Identification of secreted peptides during tracheary elements differentiation

Wrzaczek, M., Vainonen, J., Stael, S., Tuominen, H., Escamez, S. & Gevaert, K.

01/04/2014 → …

Project: Research project

elements

Stael, S., Tuominen, H., Gevaert, K. & Vainonen, J.

01/03/2014 → …

Project: Research project

Publications 1997 2019

An AP2/ERF transcription factor ERF139 coordinates xylem cell expansion and secondary cell wall deposition

Wessels, B., Seyfferth, C., Escamez, S., Vain, T., Antos, K., Vahala, J., Delhomme, N., Kangasjärvi, J., Eder, M., Felten, J. & Tuominen, H., 24 May 2019, In : New Phytologist.

Research output: Contribution to journalArticleScientificpeer-review

Arabidopsis RCD1 coordinates chloroplast and mitochondrial functions through interaction with ANAC transcription factors

Shapiguzov, A., Vainonen, J., Hunter, K. A., Tossavainen, H. P. M., Tiwari, A., Järvi, S., Hellman, M. H., Aarabi, F., Alseekh, S., Wybouw, B., Van Der Kelen, K., Nikkanen, L., Krasensky-Wrzaczek, J., Sipari, N. H., Keinänen, M., Tyystjaervi, E., Rintamäki, E., De Rybel, B., Salojärvi, J. T., Van Breusegem, F. & 6 othersFernie, A. R., Brosche, M. J., Permi, P. E. I., Aro, E-M., Wrzaczek, M. A. & Kangasjärvi, J. S., 15 Feb 2019, In : eLife. 8, 35 p., e43284.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Mechanistic insights into the evolution of DUF26-containing proteins in land plants

Vaattovaara, A., Brandt, B., Rajaraman, S., Safronov, O., Veidenberg, A., Luklová, M., Kangasjärvi, J., Löytynoja, A., Hothorn, M., Salojärvi, J. & Wrzaczek, M., 8 Feb 2019, In : Communications Biology. 2, 18 p., 56.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Reactive Oxygen Species, Photosynthesis, and Environment in the Regulation of Stomata

Ehonen, S., Yarmolinsky, D., Kollist, H. & Kangasjärvi, J., 1 Mar 2019, In : Antioxidants & Redox Signaling. 30, 9, p. 1220-1237 18 p.

Research output: Contribution to journalReview ArticleScientificpeer-review

Tissue-specific study across the stem reveals the chemistry and transcriptome dynamics of birch bark.

Alonso Serra, J. A., Safronov, O., Lim, K-J., Fraser-Miller, S., Blokhina, O. B., Campilho, A., Chong, S-L., Fagerstedt, K. V., Haavikko, R. H., Helariutta, Y., Immanen, J. J. M., Kangasjärvi, J. S., Kauppila, T. J., Lehtonen, M., Ragni, L., Rajaraman, S., Räsänen, R-M., Safdari, P., Tenkanen, T. M., Yli-Kauhaluoma, J. T. & 4 othersTeeri, T. H., Strachan, C. J., Nieminen, K. & Salojärvi, J. T., Jun 2019, In : New Phytologist. 222, 4, p. 1816-1831 16 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Activities 1995 2018

The 29th International Conference on Arabidopsis Research

Julia Krasensky (Speaker: Presenter)
25 Jun 201829 Jun 2018

Activity: Participating in or organising an event typesOrganisation and participation in conferences, workshops, courses, seminars

Trees : Structure and Function (Journal)

Melanie Carmody (Reviewer)
2018

Activity: Publication peer-review and editorial work typesPeer review of manuscripts

Australia Awards Endeavour Fellowship

Melanie Carmody (Recipient)
1 Feb 201831 Jul 2018

Activity: Other activity typesPrizes and awards - Prizes and awards

The 29th International Conference on Arabidopsis Research

Jaakko Kangasjärvi (Member of organizing committee)
25 Jun 2018

Activity: Participating in or organising an event typesOrganisation and participation in conferences, workshops, courses, seminars

Plant Abiotic Stress Tolerance V (July 5-6, 2018)

Julia Krasensky (Speaker: Presenter)
5 Jul 20186 Jul 2018

Activity: Participating in or organising an event typesOrganisation and participation in conferences, workshops, courses, seminars

Press / Media

Interview by EffTech forest cluster

Jorma Vahala

15/10/2009

1 media contribution

Press/Media: Press / Media