Organisationsprofil

Organisationsprofil

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

Vetenskapsgrenar

  • 1183 Växtbiologi, mikrobiologi, virologi

Internationellt och inhemskt samarbete Publikationer och projekt inom de senaste fem åren.

Projekt

Publikationer

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, I : Plant Direct. 4, 2, 14 s., 00206.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Öppen tillgång
Fil

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, I : Frontiers in plant science. 11, s. 1-18 18 s., 194.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Öppen tillgång
Fil

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, I : Plant Physiology. 182, 2, s. 1161-1181 21 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Systemic signalling in the regulation of stomatal conductance

Ehonen, S., Hölttä, T. & Kangasjärvi, J., apr 2020, I : Plant Physiology. 182, 4, s. 1829-1832 4 s.

Forskningsoutput: TidskriftsbidragBrevVetenskapligPeer review

Öppen tillgång

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., dec 2019, I : New Phytologist. 224, 4, s. 1585-1599 15 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Öppen tillgång
Fil

Aktiviteter

FEBS Advanced Lecture Course:

Richard Gossens (Närvarande)

2019

Aktivitet: Typer för deltagande i eller organisering av evenemangArrangemang av och deltagande i konferens/workshop/kurs/seminarium

The 30th International Conference on Arabidopsis Research

Richard Gossens (Poster presentation)

2019

Aktivitet: Typer för deltagande i eller organisering av evenemangArrangemang av och deltagande i konferens/workshop/kurs/seminarium

Coordination of Chloroplastic and Mitochondrial ROS signaling

Jaakko Kangasjärvi (!!Speaker)

25 aug 201930 aug 2019

Aktivitet: Typer för tal eller presentation!!Invited talk

Plant acclimation and responses to stresses – a cellular perspective

Jaakko Kangasjärvi (!!Speaker)

11 dec 201912 dec 2019

Aktivitet: Typer för tal eller presentation!!Invited talk

Plants in a Changing World

Richard Gossens (Poster presentation)

2019

Aktivitet: Typer för deltagande i eller organisering av evenemangArrangemang av och deltagande i konferens/workshop/kurs/seminarium

Tidningsurklipp

Interview by EffTech forest cluster

Jorma Vahala

15/10/2009

1 Mediabidrag

Press/media: !!Press / Media