gomba – -Translation – Keybot Dictionary

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Gomba Genomika és Evolúció Csoport
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Laboratory of Fungal Genomics and Evolution
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GOMBA GENOMIKA ÉS EVOLÚCIÓ
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FUNGAL GENOMICS AND EVOLUTION
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Kutatás - Biokémiai Intézet - Szintetikus és Rendszerbiológiai Egység - Gomba Genomika és Evolúció Csoport
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Research - Institute of Biochemistry - Synthetic and Systems Biology Unit - Laboratory of Fungal Genomics and Evolution
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A teljes genom szekvenciákból a filogenetikai analízisekben használható géncsaládok szűrése valamint az adatsorokon belüli heterogenitás modellezése új módszertani kihívások elé állít bennünket. E kérdésekre szimulációk és valós gomba filogenomikai adatsorok segítségével keressük a választ.
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Biological evolution proceeds in an uneven fashion, there are long periods of slow change followed by shorter periods of explosive evolutionary change. This rate variation has profound impact on extant diversity and the evolutionary dynamics of economically important traits. During the ADiv Project, we examine rate variation in the largest group of mushroom forming fungi, the Agaricales. The aim is to test whether much of the extant diversity in this order is a result of explosive diversification events (adaptive radiations). See the ADiv website for more details. This project is done in collaboration with the Department of Microbiology at the University of Szeged.
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A gombák a komparatív genomikai kutatások előterében helyezkednek el. Jelenleg az összes eukarióta genom több mint 60%-a gomba, ami jelenleg körülbelül 300 teljes genom szekvenciát jelent, ez a szám azonban rohamosan növekszik.
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One way to leverage whole genome data is to reconstruct evolutionary relationships between organisms: genome-scale datasets are 10-100x the size of traditional phylogenetic datasets. However, there are many unresolved questions that make the use and interpretation of such data difficult. Through simulations and real-world datasets we investigate how different data collection strategies influence the resolution power of genome-scale phylogenetic datasets.
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Ezek az alapvető tudományos ismeretek hosszútávon elvezethetnek olyan molekuláris markerek és technológiák feltárásához, melyek lehetővé teszik a növények alakjának, fejlődésének a megváltoztatását. A kutatások további potenciális jelentőségét az adja, hogy a sejtpolaritást szabályozó mechanizmusok részt vesznek a gombakórokozókkal szembeni érzékenység kialkulásában is.
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ROPs are the only and unique signaling-type small G-proteins in plants, but their integration into signaling networks is hardly known. In previous publications we provided the first experimental data that they can regulate kinases and they can also be regulated through phosphorylation. We aim to use the obtained knowledge to build up a general model for receptor signaling in plants; from RLKs to ROP effectors. Moreover, the data can serve as a basis for studies concerning the evolution of signaling mechanisms, as well as can give specific insights into the regulation of basic cellular processes such as polar cell growth, cell expansion, plant morphogenesis and the plants responses to fungal pathogens. This basic knowledge can be translated in long term into molecular markers and genetic technologies that can be used to alter plant shape/development and to coop with fungal plant pathogens.
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Ezen túl, külföldi partnerünkkel, Ralph Hückelhovennel (Müncheni Műszaki Egyetem), együttesen kívánjuk igazolni azt a feltételezést, hogy a kompatibilis biotróf gomba kórokozók a növényi sejtek polaritást szabályozó mechanizmusát használják a sejtekbe való behatolásra.
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The main questions of the proposed research are: How the Rho-type ROP G-proteins are linked to kinase signaling in plants and what is the biological significance of these signaling pathways during cell polarity establishment related to morpho- and pathogenesis? In yeast/metazoa several types of Rho-activated kinases exist (e.g. PAKs) that are completely absent from plants. The link of Rho signaling to receptor tyrosine kinases through RhoGEFs was also revealed in these organisms. However, plants have unique Rho proteins (ROPs), unique receptor kinases (RLKs), unique RopGEFs, unique ROP effector kinases (RLCK_VIAs) and the signaling network involving these specific proteins is hardly known. Based on our preliminary data we hypothesize that all these proteins are interlinked and play together a central role in the regulation of ROP-related processes including cell polarity. We aim to prove this hypothesis by various experimental approaches. Together with our foreign partner, Ralph Hückelhoven (Technical University of Munich), we also hypothesize that compatible fungal pathogens use the plant cell polarity machinery to enter into plant cells. We aim to compare ROP- and kinase-related steps during polar cell growth (pollen tube) and fungal entrance into plant cells in addition to reveal the function of ROP-related kinases during normal morphogenesis.
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Ezen túl, külföldi partnerünkkel, Ralph Hückelhovennel (Müncheni Műszaki Egyetem), együttesen kívánjuk igazolni azt a feltételezést, hogy a kompatibilis biotróf gomba kórokozók a növényi sejtek polaritást szabályozó mechanizmusát használják a sejtekbe való behatolásra.
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The main questions of the proposed research are: How the Rho-type ROP G-proteins are linked to kinase signaling in plants and what is the biological significance of these signaling pathways during cell polarity establishment related to morpho- and pathogenesis? In yeast/metazoa several types of Rho-activated kinases exist (e.g. PAKs) that are completely absent from plants. The link of Rho signaling to receptor tyrosine kinases through RhoGEFs was also revealed in these organisms. However, plants have unique Rho proteins (ROPs), unique receptor kinases (RLKs), unique RopGEFs, unique ROP effector kinases (RLCK_VIAs) and the signaling network involving these specific proteins is hardly known. Based on our preliminary data we hypothesize that all these proteins are interlinked and play together a central role in the regulation of ROP-related processes including cell polarity. We aim to prove this hypothesis by various experimental approaches. Together with our foreign partner, Ralph Hückelhoven (Technical University of Munich), we also hypothesize that compatible fungal pathogens use the plant cell polarity machinery to enter into plant cells. We aim to compare ROP- and kinase-related steps during polar cell growth (pollen tube) and fungal entrance into plant cells in addition to reveal the function of ROP-related kinases during normal morphogenesis.
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Mutáns és transzgenikus növények, élesztő és in vitro szűrési technikák, tranziens génkifejeződési vizsgálatok, konfokális mikroszkópia és in silico adatfeldolgozás segítségével szerzett biokémiai, szerkezeti, sejtbiológiai és funkcionális információk összegyüjtésén keresztül tárjuk fel a ROP GTPáz-kapcsolt kinázok szerepét a sejtpolaritás szabályozásában a növényi morfogenezis során, gomba fertőzött sejtekben és in vitro növekedő pollencsövekben.
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Cell polarity plays important roles in plant development. For example, the main body axis is defined by the polarity of the single-celled zygote and the polar information is used for patterning and cell specification. ROP GTPases are key regulators of cellular polarity in plants. We aim to reveal the link of ROP GTPases to various kinases in order to have new insights into the regulation of cell polarity during morphogenesis, tip growth and fungal invasion of cells. We have shown previously that a specific class of RLCK kinases (VIA) is potential ROP effectors. As these kinases are implicated both in pollen tube growth as well as fungal susceptibility, they will be in the center of our studies. However, we also have data on the possible involvement of upstream kinases as potential ROP regulators. Therefore our investigations will include these kinases as well. We combine biochemical, structural, cellular and functional information using purified proteins, mutant and transgenic plants, yeast and chemical genomic screening systems, transient gene expression assays, confocal microscopy and in silico data analysis to compare ROP-centered kinase signaling during cell polarity (in vitro pollen tubes), morphogenesis (whole plant) and pathogenesis (fungi-infected cells).