• P.O. Box 65 (Viikinkaari 1), Biocentre 3

    00014 University of Helsinki


Organization profile

Organisation Profile

Our group studies the response of plants to changes in the spectral composition of radiation, how these signals are processed and received a the level of the leaf and whole plant.

We  place this research in context by considering how the spectral composition of radiation perceived by plants changes depending on their environment.  This can mean studying the different responses of plants in sun and shade, and even refining what we understand by 'shade' through studying how plant canopies evolve over the year and interact with seasonal changes in radiation.

These responses become particularly ecologically relevant when we contextualise them to the other abiotic and biotic interactions that plants experience in the environment. This can involve (1) elucidating the response of plants to combined stress factors, or (2) understanding how plant traits influence community-level processes, or even (3) how changes in the climate may interact with the spectral cues that plants use to trigger phenological development.

The core expertise in our group is in plant physiological ecology. But starting from an ecophysiological perspective, identifying the processes that respond to environmental factors, gives us great interdisciplinary scope to scale up these responses allowing further understanding of plant ecology and biometeorology, and utilising molecular and genomic approaches to link our findings with new knowledge of receptors and signalling pathways.

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

Projects 2011 2018

uv4pb: UV4Plants Bulletin

Aphalo, P. J., Robson, T. M., Kotilainen, T. K., Siipola, S. M., Jansen, M., Strid, Å. & Barnes, P.

01/01/2016 → …

Project: Other projectDevelopment

r4photobiology: R 4 photobiology

Aphalo, P. J., Kotilainen, T. K., Robson, T. M. & Albert, A.

01/01/2013 → …

Project: Research project_Research, Research facilities

Optimising site-specific solar radiation modelling for its application in the horticultural, agricultural and photonics industries

Robson, T. M., Kotilainen, T. K., Aphalo, P. J., Hernandez, R., Davis, P., Purmonen, J. & Jalkanen, J.


Project: Research project_Research

Publications 2010 2019

Increased root investment can explain the higher survival of seedlings of ‘mesic’ Quercus suber than ‘xeric’ Quercus ilex in sandy soils during a summer drought

Ramírez-Valiente, J-A., Aranda, I., Sanchez-Gomez, D., Rodriguez-Calcerrada, J., Valladares, F. & Robson, T. M., Jan 2019, In : Tree Physiology. 39, 1, p. 64–75 tpy084.

Research output: Contribution to journalArticleScientificpeer-review

Interactive effects of UV-B radiation in a complex environment

Jansen, M., Bilger, W., Hideg, E., Strid, Å., Urban, O., Aphalo, P. J., Brelsford, C. C., Klem, K., Mátai, A., LLorens, L., Nezval, J., Nybakken, L., Ryan, L., Sharma, A., Schenke, D., Solhaug, K., Spunda, V., Verdaguer, D. & Yan, Y., Jan 2019, In : Plant Physiology and Biochemistry. 134, p. 1-8 8 p.

Research output: Contribution to journalEditorialScientificpeer-review

Open Access

Assessing scale-wise similarity of curves with a thick pen: As illustrated through comparisons of spectral irradiance

Hartikainen, S. M., Jach, A., Grane, A. & Robson, T. M., Oct 2018, In : Ecology and Evolution. 8, 20, p. 10206-10218 13 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access

Blue light advances bud burst in branches of three deciduous tree species under short-day conditions

Brelsford, C. & Robson, T. M., 2018, In : Trees : Structure and Function. 32, 4, p. 1157–1164

Research output: Contribution to journalArticleScientificpeer-review

Activities 2004 2018

Spectral quality characterization for materials used in controlled environment agriculture

Titta Katariina Kotilainen (Speaker)
22 Mar 2018

Activity: Talk or presentation typesOral presentation

Teaching and Organisation of Training School in UV Plant Photobiology

T Matthew Robson (Teacher), Pedro J. Aphalo (Teacher), Twinkle Solanki (Participant)
13 Apr 201815 Apr 2018

Activity: Other activity typesTypes for other activities - External teaching and subject coordination

Grading Committee for Doctoral Examination

T Matthew Robson (Other role (describe in more detail in "Relation description, notes" field))
31 Aug 2018

Activity: Examination typesPre-examiner of doctoral thesis

Alexandra Burgess

T Matthew Robson (Host)
18 Jun 201823 Jun 2018

Activity: Hosting a visitor typesAcademic visit at UH


Titta Katariina Kotilainen (Attendee)
27 Mar 2018

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