Florian Rümpler
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View article: AGAMOUS mediates timing of guard cell formation during gynoecium development
AGAMOUS mediates timing of guard cell formation during gynoecium development Open
In Arabidopsis thaliana , stomata are composed of two guard cells that control the aperture of a central pore to facilitate gas exchange between the plant and its environment, which is particularly important during photosynthesis. Although…
View article: Cracking the Floral Quartet Code: How Do Multimers of MIKCC-Type MADS-Domain Transcription Factors Recognize Their Target Genes?
Cracking the Floral Quartet Code: How Do Multimers of MIKCC-Type MADS-Domain Transcription Factors Recognize Their Target Genes? Open
MADS-domain transcription factors (MTFs) are involved in the control of many important processes in eukaryotes. They are defined by the presence of a unique and highly conserved DNA-binding domain, the MADS domain. MTFs bind to double-stra…
View article: The Origin of Floral Quartet Formation—Ancient Exon Duplications Shaped the Evolution of MIKC-type MADS-domain Transcription Factor Interactions
The Origin of Floral Quartet Formation—Ancient Exon Duplications Shaped the Evolution of MIKC-type MADS-domain Transcription Factor Interactions Open
During development of flowering plants, some MIKC-type MADS-domain transcription factors (MTFs) exert their regulatory function as heterotetrameric complexes bound to two sites on the DNA of target genes. This way they constitute “floral q…
View article: Cracking the floral quartet code: How do multimers of MIKC<sup>C</sup>-type MADS-domain transcription factors recognize their target genes?
Cracking the floral quartet code: How do multimers of MIKC<sup>C</sup>-type MADS-domain transcription factors recognize their target genes? Open
MADS-domain transcription factors (MTFs) are involved in the control of many important processes in eukaryotes. They are defined by the presence of a unique and highly conserved DNA-binding domain, the MADS-domain. MTFs bind to double-stra…
View article: Deep evolution of MADS-box genes in Archaeplastida
Deep evolution of MADS-box genes in Archaeplastida Open
MADS-box genes represent a paneukaryotic gene family encoding transcription factors. Given its importance for essential functions in plants, animals and fungi, such as development of organ identity and mating type determination, the phylog…
View article: Chromosome-level genomes of multicellular algal sisters to land plants illuminate signaling network evolution
Chromosome-level genomes of multicellular algal sisters to land plants illuminate signaling network evolution Open
The filamentous and unicellular algae of the class Zygnematophyceae are the closest algal relatives of land plants. Inferring the properties of the last common ancestor shared by these algae and land plants allows us to identify decisive t…
View article: AGAMOUS mediates timing of guard cell formation during gynoecium development
AGAMOUS mediates timing of guard cell formation during gynoecium development Open
In Arabidopsis thaliana , stomata are composed of two guard cells that control the aperture of a central pore to facilitate gas exchange between the plant and its environment, which is particularly important during photosynthesis. Although…
View article: The origin of floral quartet formation - Ancient exon duplications shaped the evolution of MIKC-type MADS-domain transcription factor interactions
The origin of floral quartet formation - Ancient exon duplications shaped the evolution of MIKC-type MADS-domain transcription factor interactions Open
During development of flowering plants, some MIKC-type MADS-domain transcription factors (MTFs) exert their regulatory function as heterotetrameric complexes bound to two sites on the DNA of target genes. This way they constitute „floral q…
View article: Studying the Function of Phytoplasma Effector Proteins Using a Chemical-Inducible Expression System in Transgenic Plants
Studying the Function of Phytoplasma Effector Proteins Using a Chemical-Inducible Expression System in Transgenic Plants Open
Phytoplasmas are bacterial pathogens that live mainly in the phloem of their plant hosts. They dramatically manipulate plant development by secreting effector proteins that target developmental proteins of their hosts. Traditionally, the e…
View article: DNA-binding properties of the MADS-domain transcription factor SEPALLATA3 and mutant variants characterized by SELEX-seq
DNA-binding properties of the MADS-domain transcription factor SEPALLATA3 and mutant variants characterized by SELEX-seq Open
Key message We studied the DNA-binding profile of the MADS-domain transcription factor SEPALLATA3 and mutant variants by SELEX-seq. DNA-binding characteristics of SEPALLATA3 mutant proteins lead us to propose a novel DNA-binding mode. Abst…
View article: Structural Requirements of the Phytoplasma Effector Protein SAP54 for Causing Homeotic Transformation of Floral Organs
Structural Requirements of the Phytoplasma Effector Protein SAP54 for Causing Homeotic Transformation of Floral Organs Open
Phytoplasmas are intracellular bacterial plant pathogens that cause devastating diseases in crops and ornamental plants by the secretion of effector proteins. One of these effector proteins, termed SECRETED ASTER YELLOWS WITCHES’ BROOM PRO…
View article: Structural requirements of the phytoplasma effector protein SAP54 for causing homeotic transformation of floral organs
Structural requirements of the phytoplasma effector protein SAP54 for causing homeotic transformation of floral organs Open
Summary Phytoplasmas are intracellular bacterial plant pathogens that cause devastating diseases in crops and ornamental plants by the secretion of effector proteins. One of these effector proteins, termed SECRETED ASTER YELLOWS-WITCHES’ B…
View article: The floral homeotic protein <scp>SEPALLATA</scp> 3 recognizes target <scp>DNA</scp> sequences by shape readout involving a conserved arginine residue in the <scp>MADS</scp> ‐domain
The floral homeotic protein <span>SEPALLATA</span> 3 recognizes target <span>DNA</span> sequences by shape readout involving a conserved arginine residue in the <span>MADS</span> ‐domain Open
Summary SEPALLATA 3 of Arabidopsis thaliana is a MADS ‐domain transcription factor ( TF ) and a key regulator of flower development. MADS ‐domain proteins bind to sequences termed ‘ CA rG‐boxes’ [consensus 5′‐ CC (A/T) 6 GG ‐3′]. Because o…
View article: A conserved leucine zipper-like motif accounts for strong tetramerization capabilities of SEPALLATA-like MADS-domain transcription factors
A conserved leucine zipper-like motif accounts for strong tetramerization capabilities of SEPALLATA-like MADS-domain transcription factors Open
The development of angiosperm flowers is regulated by homeotic MIKC-type MADS-domain transcription factors that activate or repress target genes via the formation of DNA-bound, organ-specific tetrameric complexes. The protein-protein inter…
View article: Evolution of the interaction of floral homeotic proteins
Evolution of the interaction of floral homeotic proteins Open
The flower development of angiosperms is controlled by floral homeotic MIKCC-type MADS-domain transcription factors (MADS-TFs) that activate or repress target genes by forming floral organ specific DNA-bound heterotetrameric complexes term…
View article: An evolutionarily conserved leucine zipper-like motif accounts for strong tetramerization capabilities of SEPALLATA-like MADS-domain transcription factors controlling flower development
An evolutionarily conserved leucine zipper-like motif accounts for strong tetramerization capabilities of SEPALLATA-like MADS-domain transcription factors controlling flower development Open
The development of angiosperm flowers is regulated by homeotic MIKC-type MADS-domain transcription factors that activate or repress target genes via the formation of DNA-bound, organ specific tetrameric complexes. The protein-protein inter…
View article: Developmental Control and Plasticity of Fruit and Seed Dimorphism in <i>Aethionema arabicum</i>
Developmental Control and Plasticity of Fruit and Seed Dimorphism in <i>Aethionema arabicum</i> Open
Understanding how plants cope with changing habitats is a timely and important topic in plant research. Phenotypic plasticity describes the capability of a genotype to produce different phenotypes when exposed to different environmental co…
View article: MADS-domain transcription factors and the floral quartet model of flower development: linking plant development and evolution
MADS-domain transcription factors and the floral quartet model of flower development: linking plant development and evolution Open
The floral quartet model of floral organ specification poses that different tetramers of MIKC-type MADS-domain transcription factors control gene expression and hence the identity of floral organs during development. Here, we provide a bri…