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During my Ph.D. studies I investigated the role of phytohormone cytokinin in development of primary vascular tissue in Arabidopsis root. I carried out the work in Ykä Helariutta lab (Institute of Biotechnology, University of Helsinki, Finland) and I obtained the degree in 2006.

After the Ph.D. I conducted Post-doctoral studies in Ben Scheres lab (Utrecht University, the Netherlands). I examined growth dynamics of Arabidopsis root meristem and we discovered a mechanism how instructive gradient of stem cell factor PLETHORA is formed and maintained.

After the Post-doctoral period I returned to Helsinki to establish my research program to study the development of vascular cambium in Arabidopsis root. I have been a tenure track group leader at the Institute of Biotechnology, University of Helsinki since 2011. June 2019 I was selected as HiLIFE tenure track Associate Professor.

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Ari Pekka's publications are listed in:

• Researchgate
• Google Scholar
• University of Helsinki Research portal
• ORCID

Tiina Blomster's profile in the University of Helsinki Research portal

I joined the Mähönen group in February 2012. My project is mainly focused on the stem cell identification in the Arabidopsis root vascular cambium using clonal analysis and cell ablation approaches.

Ondrej Smetana's profile in the University of Helsinki Research portal

Brecht obtained his PhD in 2019 under the supervision of Prof Bert De Rybel, where he studied how plants control their cell division orientation during root vascular proliferation. Staying in vascular development research, Brecht started as a post-doc in the lab of Ari Pekka, studying the role of auxin during secondary growth.

I obtained my PhD at the Institute of Botany, the Chinese Academy of Sciences under the guidance of Dr. Hongzhi Kong and Hongyan Shan, investigating molecular mechanisms of expression divergence between duplicate genes. And then I moved to the University of Helsinki for a postdoc research in Mahonen group in 2017. I am interested in transcriptional regulation of cambium development and secondary growth

Lingling Ye's profile in the University of Helsinki Research portal

Jing Zhang's profile in the University of Helsinki Research portal

Gugan Eswaran's profile in the University of Helsinki Research portal

I received my bachelor from China Agricultural University. In September of 2016, I joined the Mähönen group. I am interested in the roles of auxin and cytokinin in vascular cambium activity. In 2019 I started as a PhD student in the Mähönen lab.

I have done my Bachelor's and Master's studies in the University of Helsinki and joined the Mähönen lab in 2014, first as a Master's student and then later as a PhD student. My project focuses on the roles of auxin and gibberellic acid in regulating the vascular cambium stem cell dynamics. 

Riikka Mäkilä's profile in the University of Helsinki Research portal

I received my bachelor of Agriculture from Northwest Agriculture & Forestry University, China. Then moved to Institute of Botany, Chinese Academy of Sciences to continue master study and got master of botany. In October of 2014, I joined Mähönen group. I am interested in how plants balance secondary growth and lateral root formation and as a result, to contribute plant architecture formation. I am using lineage tracing, confocal microscopy, hormone manipulations and mutant analysis to answer this question.

Xin Wang's profile in the University of Helsinki Research portal

Suvi Broholm (Post-doc, now in Academy of Finland)

Viivi Lindholm (Student, Metropolia, University of Applied Sciences, Helsinki)

Teemu Lindqvist (Student, Metropolia, University of Applied Sciences, Helsinki)

Julia Tolsa (Student, Metropolia, University of Applied Sciences, Helsinki)

Lisa Mulder (Erasmus student from the van Hall-Larenstein University, the Netherlands)

Riccardo Siligato (Graduate student, Ph.D 2015)

Anne-Maarit Bågman (Research technician, now in the Brady lab) 

Marina Leal Gavarrón (Erasmus student from the Complutense University of Madrid, Spain)

Laura Paavilainen (Master's student, University of Helsinki)

Jasmina Lamminpohja (Research technician student, Stadin ammattiopisto, Helsinki)

Vesa Nousiainen (Master's student, University of Helsinki)

Vilma Vallenius (Student, Stadin ammattiopisto, Helsinki)

Marcelo Pace (Graduate student, Brasil)