A5015973973- Plant Molecular Biology Research
- Plant Reproductive Biology
- Plant nutrient uptake and metabolism
- Photosynthetic Processes and Mechanisms
- RNA modifications and cancer
- Microbial Metabolic Engineering and Bioproduction
- RNA Research and Splicing
- Plant and animal studies
- Plant Physiology and Cultivation Studies
- Insect symbiosis and bacterial influences
- Plant Gene Expression Analysis
- Biodiesel Production and Applications
- Advanced Proteomics Techniques and Applications
- Plant biochemistry and biosynthesis
- Studies on Chitinases and Chitosanases
- RNA and protein synthesis mechanisms
- Plant tissue culture and regeneration
- Lipid metabolism and biosynthesis
- CRISPR and Genetic Engineering
- Metabolomics and Mass Spectrometry Studies
- Genetic diversity and population structure
- Plant Stress Responses and Tolerance
- Genomics and Chromatin Dynamics
- Microbial Fuel Cells and Bioremediation
- Plant Parasitism and Resistance
Umeå University
2017-2023
Umeå Plant Science Centre
2017-2023
Max Planck Institute for Developmental Biology
2015-2019
Harvard University
2015
Google (United States)
2015
University of Padua
2009-2012
University of Perugia
2010
The transition to flowering is a crucial step in the plant life cycle that controlled by multiple endogenous and environmental cues, including hormones, sugars, temperature, photoperiod. Permissive photoperiod induces expression of FLOWERING LOCUS T (FT) phloem companion cells leaves. FT protein then acts as florigen transported shoot apical meristem, where it physically interacts with Basic Leucine Zipper Domain transcription factor FD 14-3-3 proteins. However, despite importance promoting...
Rice flowering is controlled by changes in the photoperiod that promote transition to reproductive phase as days become shorter. Natural genetic variation for time has been largely documented and instrumental define genetics of photoperiodic pathway, well providing valuable material artificial selection varieties better adapted local environments. We mined a collection rice highly European regions isolated distinct variants long day repressor HEADING DATE 1 (Hd1) perturb its expression or...
The floral transition is a critical step in the life cycle of flowering plants, and several mechanisms control this finely orchestrated process. TERMINAL FLOWER1 (TFL1) repressor close relative florigen, FLOWERING LOCUS T (FT). During transition, TFL1 expression up-regulated inflorescence apex to maintain indeterminate growth shoot apical meristem (SAM). Both FT are mobile proteins, but they move different ways. moves from leaves SAM, while appears within SAM. importance movement for its...
Summary Distinct molecular mechanisms integrate changes in ambient temperature into the genetic pathways that govern flowering time Arabidopsis thaliana . Temperature‐dependent eviction of histone variant H2A.Z from nucleosomes has been suggested to facilitate expression FT by PIF 4 at elevated temperatures. Here we show that, addition 4, 3 and 5, but not 1 6, can promote when expressed specifically phloem companion cells ( PCC ), where they induce its close paralog, TSF However, despite...
Significance Plant architecture is highly plastic and known to respond sensitively nutritional changes. Although of great agronomic importance, the underlying molecular mechanisms that sense transduce these cues into plant development growth are poorly understood. Applying diverse genetic, biochemical, microscopic approaches, we disclosed signaling via central, evolutionarily conserved fuel-sensor kinase Snf1-RELATED KINASE1 (SnRK1) initiates lateral root (LR) primordia formation in response...
Abstract Background Olea europaea L. is a traditional tree crop of the Mediterranean basin with worldwide economical high impact. Differently from other fruit species, little known about physiological and molecular basis olive development few sequences genes gene products are available for in public databases. This study deals identification large sets differentially expressed developing fruits subsequent computational annotation by means different software. Results mRNA cv. Leccino sampled...
By enforcing specific pollinator interactions, Aquilegia petal nectar spurs maintain reproductive isolation between species. Spur development is the result of three-dimensional elaboration from a comparatively two-dimensional primordium. Initiated by localized, oriented cell divisions surrounding incipient nectary, this process creates pouch that extended anisotropic elongation. We hypothesized evolutionary novelty could be promoted non-mutually exclusive factors, including (i) prolonged,...
Cytokinin plays diverse roles in plant growth and development, generally acting by modulating gene transcription target tissues. The type-B Arabidopsis response regulators (ARR) factors have emerged as primary targets of cytokinin signaling are required for essentially all cytokinin-mediated changes expression. diversity function is likely imparted the activity various working with ARRs to alter specific sets genes. One potential set co-regulators BARLEY B-RECOMBINANT/BASIC PENTACYSTEINE...
Intron splicing increases proteome complexity, promotes RNA stability, and enhances transcription. However, introns the concomitant need for extend time required gene expression can cause an undesirable delay in activation of genes. Here, we show that plant microRNA processing factor SERRATE (SE) plays unexpected pivotal role regulation intronless Arabidopsis SE associated with more than 1000, mainly intronless, genes a transcription-dependent manner. Chromatin-bound liaised paused...
Summary Dynamic regulation of the concentration natural auxin (IAA) is essential to coordinate most physiological and developmental processes responses environmental changes. Oxidation IAA a major pathway control concentrations in angiosperms and, along with conjugation, respond perturbation homeostasis. However, these regulatory mechanisms remain poorly investigated conifers. To reduce this knowledge gap, we different contributions inactivation pathways MS‐based quantification metabolites...
Self-incompatibility is one of the most important barriers adopted by many flowering plants to prevent inbreeding, thus maintaining diversity within species. The elucidation this reproductive constraint crucial in olive (Olea europaea L.) because it may help improve breeding strategies and orchard management. available literature reports that a gametophytic self-incompatibility (GSI) system might exist olive, even though neither cytological nor molecular data were provided. A approach failed...
Plants rely on concentration gradients of the native auxin, indole-3-acetic acid (IAA), to modulate plant growth and development. Both metabolic transport processes participate in dynamic regulation IAA homeostasis. Free levels can be reduced by inactivation mechanisms, such as conjugation degradation. conjugated via ester linkage glucose, or amide amino acids, degraded oxidation. Members UDP glucosyl transferase (UGT) family catalyze conversion indole-3-acetyl-1-glucosyl (IAGlc); contrast,...
Abstract Temperature affects plant growth by modulating the expression of genes and subsequent processing RNAs that govern essential physiological processes. Here, we show Arabidopsis thaliana Sm-like7 (LSM7), a core component splicing decapping machinery, is indispensable for embryogenesis development. Hypomorphic lsm7-2 mutants display severe developmental defects are exacerbated high temperatures. Transcriptome analysis verified LSM7’s extensive role in gene regulation. In particular,...
Natural antisense transcripts (NATs) are a group of RNAs encoded within cell that have transcript complementarity to other RNA transcripts. NATs been identified in multiple eukaryotes, including humans, mice, yeast and several plants, known play crucial roles gene regulation modification via interference, alternative splicing genomic imprinting. also involved human diseases.We describe novel method detect the occurrence target specific plant tissues. This differs from others currently used...
Abstract Chitin is an abundant, carbon-rich polymer in the marine environment. Chitinase activity has been detected spent media of Synechococcus WH7803 cultures—yet it was unclear which specific enzymes were involved. Here we delivered a CRISPR tool into cells via electroporation to generate loss-of-function mutants putative candidates and identified ChiA as enzyme required for wild type.
Summary Dynamic regulation of the levels natural auxin, indol-3-acetic acid (IAA), is essential to coordinate most physiological and developmental processes responses environmental changes. Oxidation IAA a major pathway control auxin concentrations in Arabidopsis and, along with conjugation, respond perturbation homeostasis. However, these regulatory mechanisms are still poorly investigated conifers. To reduce this gap knowledge, we different contribution inactivation pathways Mass...
Abstract Background Plants rely on concentration gradients of the native auxin, indole-3-acetic acid (IAA), to modulate plant growth and development. Both metabolic transport processes participate in dynamic regulation IAA homeostasis. Free levels can be reduced by inactivation mechanisms, such as conjugation degradation. conjugated via ester linkage glucose, or amide amino acids, degraded oxidation. Members UDP glucosyl transferase (UGT) family catalyze conversion indole-3-acetyl-1-glucosyl...