Szanowni Państwo,
przed nami kolejne spotkanie wydziałowe SciPro. Serdecznie zapraszamy wszystkich pracowników i doktorantów 14 maja o godzinie 12:30 do sali wykładowej I. Naszymi prelegentami będą: dr hab. Marcin Gołębiewski prof. UMK oraz dr Mateusz Kwiatkowski. Tematy oraz streszczenia ich prezentacji znajdą Państwo poniżej.
dr Mateusz Kwiatkowski: Cyclic nucleotides in plants: still controversial or finally understood?
Cyclic nucleotides (cAMP, cGMP) are important second messengers in animals, but their roles in plants have been debated for a long time. Initial reports indicated their existence, however, the absence of distinctly identified enzymes and their minimal endogenous concentrations cast doubt on their physiological significance. This presentation gives a short history of the field and an overview of what we know now about how plants use and signal cyclic nucleotides. New discoveries, such as functional cyclases and phosphodiesterases found in multidomain proteins, have sparked new interest in their biological roles. Increasing attention is being paid to the role of cyclic nucleotides in plant signaling pathways, including their interactions with phytohormones and potential roles in light-dependent processes. Together, these findings support the view that cyclic nucleotides are now integral components of plant signaling networks.
dr hab. Marcin Gołębiewski prof. UMK: Drought, beet, and microbiome - systems biology at work
Drought is one of the main environmental stressors affecting plants. Due to global climate change it is of increasing agricultural
relevance. Plants can adapt to water scarcity, and such adaptation is in part caused by changes in their endophytic microbiome. We wanted to see if crop (sugar beet) drought resistance could be improved by transfer of microbiota from wild, resistant plant (sea beet). To this end, we prepared an inoculant containing wild sea beet microbiome, devised and optimized a method of inoculation and checked how inoculation changed plant's response to drought on multiple levels. Here we show that wild beet microbiome can be transferred to the crop and sea beet alike, and the transfer enables persistent establishment of 'foreign' bacteria in plants. The establishment is mainly random when no stress is applied. Changes caused by inoculation are visible at
the level of physiology and most pronounced in sea beet, but at the level of transcriptome they are subtle. Messengers originating from endophytes are scarce and only rRNA can be reliably used to get insight into microbiome activity if no enrichment is applied at library generation stage. Concluding, we demonstrated that whole microbiome transplantation may
be a tool to manipulate plant traits.
Do zobaczenia!