z

Research focus:
I deal with research into redox balance regulation in plant cells and its impact on seed ageing and storage and the adaptive capabilities of seeds in the face of changing environmental conditions. My goal is to understand how plants regulate redox signalling to retain the high quality and viability of seeds – a key factor in biodiversity protection. I analyse the network of processes regulating the redox state, focusing on thioredoxins (Trx), thioredoxin reductases (TrxR) and peroxiredoxins (Prx).
I also study the effect of reactive oxygen species on the functioning of seeds, searching for biomarkers signalling the ageing of seeds, before they lose their germination capacity. I place special emphasis on the respiratory metabolism of seeds and its role in maintaining seed viability during storage. I focus on mitochondria which may be a key location where seed ageing processes are initiated. I study tree seeds characterised by various tolerance to water loss and storage: orthodox (e.g. Acer platanoides), recalcitrant (e.g. Acer pseudoplatanus), and intermediate seeds (e.g. Fagus sylvatica). This allows me to identify the factors which are critical to the storage and germination of seeds.
My studies facilitate the optimisation of storage methods and support the protection of plants in the climate change era.

Keywords:
seeds, redox state, reactive oxygen species, antioxidants, thiol proteins, thioredoxins, peroxiredoxins, seed viability, ageing process, mitochondria, respiration

avatar
dr hab. Ewelina Ratajczak, prof. ID PAN

[Dr. Habil., Prof. ID PAS]
Position: Associate Professor

Building A , Room 7
Phone: +48 61 817 00 33 ext. 202
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

 

Represented disciplines:

Biological sciences
Forestry sciences

 

Other profiles:

ORCID: https://orcid.org/0000-0003-2710-4638
Scopus: https://www.scopus.com/authid/detail.uri?authorId=8534064300
ResearchGate: https://www.researchgate.net/profile/Ewelina-Ratajczak


Research focus:
I deal with research into redox balance regulation in plant cells and its impact on seed ageing and storage and the adaptive capabilities of seeds in the face of changing environmental conditions. My goal is to understand how plants regulate redox signalling to retain the high quality and viability of seeds – a key factor in biodiversity protection. I analyse the network of processes regulating the redox state, focusing on thioredoxins (Trx), thioredoxin reductases (TrxR) and peroxiredoxins (Prx).
I also study the effect of reactive oxygen species on the functioning of seeds, searching for biomarkers signalling the ageing of seeds, before they lose their germination capacity. I place special emphasis on the respiratory metabolism of seeds and its role in maintaining seed viability during storage. I focus on mitochondria which may be a key location where seed ageing processes are initiated. I study tree seeds characterised by various tolerance to water loss and storage: orthodox (e.g. Acer platanoides), recalcitrant (e.g. Acer pseudoplatanus), and intermediate seeds (e.g. Fagus sylvatica). This allows me to identify the factors which are critical to the storage and germination of seeds.
My studies facilitate the optimisation of storage methods and support the protection of plants in the climate change era.

Keywords:
seeds, redox state, reactive oxygen species, antioxidants, thiol proteins, thioredoxins, peroxiredoxins, seed viability, ageing process, mitochondria, respiration

avatar
dr hab. Ewelina Ratajczak, prof. ID PAN

[Dr. Habil., Prof. ID PAS]
Position: Associate Professor

Building A , Room 7
Phone: +48 61 817 00 33 ext. 202
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

 

Represented disciplines:

Biological sciences
Forestry sciences

 

Other profiles:

ORCID: https://orcid.org/0000-0003-2710-4638
Scopus: https://www.scopus.com/authid/detail.uri?authorId=8534064300
ResearchGate: https://www.researchgate.net/profile/Ewelina-Ratajczak