On 28 June 2022 Dr. Martina Ried, leader of the group Symbiosis Signaling at the Dept. of Molecular Signal Processing in the Leibniz Institute of Plant Biochemistry will present insights to her current research. The research of her group focuses on the understandind the mutual interplay between plant roots and beneficial microbes. Related to this she will give a talk entitled “Early signaling events in plant root endosymbiosis” as part of the Halle Plant Science Colloquium at 5:00 pm in presence at the Heide Süd Campus.
Date: 28 June, 2022
Time: 5:00 pm to 6:30 pm
Location: Lecture hall E.02, Theodor-Lieser-Strasse 9 (Heide Süd Campus)
Abstract: A tightly regulated nutrient homeostasis is vital for every cell. Plants have evolved elaborate systems to sense and signal extracellular and intracellular e.g. phosphate and nitrogen levels and to regulate cellular nutrient concentrations. Most land plants establish Arbuscular Mycorrhiza with phosphate-acquiring fungi, and selected members of the Fabales, Fagales, Cucurbitales and Rosales engage in root nodule symbiosis with diazotrophic bacteria. While many genes involved in symbiont perception and subsequent genetic reprogramming have been identified and well characterized, the signaling events that take place between the plasma membrane and the nucleus during the establishment of a successful symbiosis and the signaling hubs connecting symbiosis with nutrient homeostasis remain largely obscure. There is accumulating evidence that nutrient homeostasis is regulated by negatively charged inositol pyrophosphates (PP-InsPs). PP-InsPs serve as ligands for SPX domains – eukaryotic sensors that contain a large positively charged surface – and binding of PP-InsPs to SPX enables them to interact with their target proteins, which regulate e.g. phosphate homeostasis. It is our goal to scrutinize the role of PP-InsP ligands and putative precursors during symbiosis and nutrient homeostasis in Lotus japonicus and thus to illuminate the interplay of these different plant strategies to overcome nutrient limitation.
If you like to meet with the speaker, please contact the host, Edgar Peiter in advance.
The Halle Plant Science Colloquium (HPSC) is an interdepartmental colloquium of Institutions of the Martin-Luther-University working on any aspect of functional plant biology.
Interested in plant science? – Find more HPSC events listed here: https://www.landw.uni-halle.de/prof/pflanzenernaehrung/hpsc/