Environmental cues represent major hardships to crop productivity worldwide. Therefore, elucidation of plant stress adaptation networks has become a main biotechnology research objective. In this sense, our research aims to discover target genes from the ROS-auxin regulatory network driving plant adaptations to environmental hardships.
Besides evolutionary adaptations that have shaped the development of plants and led to the diversity of forms in existence today in all kind of habitats, plants can also respond to rapid and often very substantial fluctuations in their environments. In contrast to animals, plants cannot move away from negative stimuli. To deal with this lack of mobility, plants have developed adaptation strategies by which they adjust their patterns of growth and development in response to the environment. It is now clear that two of the main players in plant adaptation responses are reactive oxygen species (ROS) and the auxin hormone. However, knowledge of the regulatory events governing ROS and auxin interplay is at this point still superficial. In this respect, molecular insight into the nature of ROS-auxin crosstalk remains insufficient. On the other hand, environmental factors primary affect photosynthesis, compromising plant growth and yield. Basically, photosynthesis acts as a global stress sensor activating photosynthesis adaptation and stress responses, which directly affect ROS and auxin homeostasis. We use several approaches, including phenotypic and genetic screenings for in-depth characterization and identification of the regulatory components of the ROS-auxin crosstalk underlying stress induced morphological responses. We are also interested in ROS-redox chloroplast signalling that drives stress adaptions and survival in plants and its interplay with the auxin pathway. In this sense, we are focussed in chloroplast processes that may be subject to auxin regulation and the possible role of chloroplast metabolism on auxin homeostasis under stress conditions.
The knowledge of plant stress adaptation we expect to obtain will be useful in pinpointing potential candidate genes for innovative biotechnology approaches to optimize crop performance in changing environmental field conditions via manipulation of photosynthesis and morphological processes, which are the most relevant traits in plant breeding programmes. Thus, the final goal of our group is transfer of knowledge between basic research, applied science and society.
list / cards
Name and position |
Phone |
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Vanesa Beatriz Tognetti, Ph.D. Research Group Leader |
+420 54949 6582 | |
Prashanth Tamizhselvan Research specialist - PhD student |
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Mónika Hrtyan Laboraroty technician |
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Sharmila Madhavan Research specialist - PhD student |
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Eman Elrefaay Ryad Research specialist - PhD student |
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Stanislava Sladeček laborantka |
Standard laboratory equipment for molecular biology, plant stress physiology and plant cultivation under tightly regulated conditions (fytotrons). Leaf gas exchange and chlorophyll fluorescence imaging systems for photosynthetic performance studies under different growth conditions.
29. ledna 2018 9:46
LECTURE: Dr. Ondrej Hovorka: Models of magnetic nanoparticles for biomedical applications
25. ledna 2018 18:21
WHEN: 30. 01. 2018 WHERE: CEITEC BUT, Purkynova 123, large meeting room SPEAKER: Dr Andriy Marko TALK: Advances in PELDOR…