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

Fields of Science

  • 1183 Plant biology, microbiology, virology
  • Plant stress
  • ROS-Signalling
  • Plant Physiology
  • Ozone
  • Stomatal closure

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

Projects

Publications

Differential role of MAX2 and strigolactones in pathogen, ozone, and stomatal responses

Kalliola, M., Jakobson, L., Davidsson, P., Pennanen, V., Waszczak, C., Yarmolinsky, D., Zamora, O., Palva, E. T., Kariola, T., Kollist, H. & Brosché, M., 28 Feb 2020, In : Plant Direct. 4, 2, 14 p., 00206.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Dissecting the interaction of photosynthetic electron transfer with mitochondrial signalling and hypoxic response in the Arabidopsis rcd1 mutant

Shapiguzov, A., Nikkanen, L., Fitzpatrick, D., Vainonen, J. P., Gossens, R., Alseekh, S., Aarabi, F., Tiwari, A., Blokhina, O., Panzarova, K., Benedikty, Z., Tyystjärvi, E., Fernie, A. R., Trtilek, M., Aro, E-M., Rintamäki, E. & Kangasjarvi, J., 22 Jun 2020, In : Philosophical Transactions of the Royal Society. Biological Sciences. 375, 1801, 10 p., 20190413.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Primary Metabolite Responses to Oxidative Stress in Early-Senescing and Paraquat Resistant Arabidopsis thaliana rcd1 (Radical-Induced Cell Death1)

Sipari, N., Lihavainen, J., Shapiguzov, A., Kangasjärvi, J. & Keinänen, M., 28 Feb 2020, In : Frontiers in plant science. 11, p. 1-18 18 p., 194.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

PROTEIN PHOSPHATASE 2A-B 'gamma Controls Botrytis cinerea Resistance and Developmental Leaf Senescence

Durian, G., Rahikainen, M., Vuorinen, K., Gollan, P. J., Brosche, M., Salojarvi, J., Glawischnig, E., Winter, Z., Li, S., Noctor, G., Aro, E-M., Kangasjärvi, J., Overmyer, K., Burow, M. & Kangasjärvi, S., Feb 2020, In : Plant Physiology. 182, 2, p. 1161-1181 21 p.

Research output: Contribution to journalArticleScientificpeer-review

Systemic signalling in the regulation of stomatal conductance

Ehonen, S., Hölttä, T. & Kangasjärvi, J., Apr 2020, In : Plant Physiology. 182, 4, p. 1829-1832 4 p.

Research output: Contribution to journalLetterScientificpeer-review

Open Access

Activities

FEBS Advanced Lecture Course:

Richard Gossens (Attendee)

2019

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

The 30th International Conference on Arabidopsis Research

Richard Gossens (Poster Presentation)

2019

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

Coordination of Chloroplastic and Mitochondrial ROS signaling

Jaakko Kangasjärvi (Speaker)

25 Aug 201930 Aug 2019

Activity: Talk or presentation typesInvited talk

Plant acclimation and responses to stresses – a cellular perspective

Jaakko Kangasjärvi (Speaker)

11 Dec 201912 Dec 2019

Activity: Talk or presentation typesInvited talk

Plants in a Changing World

Richard Gossens (Poster Presentation)

2019

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