Waldemar Wojciechowski

Waldemar Wojciechowski
Nicolaus Copernicus University | umk · Chair of Plant Physiology and Biotechnology

About

49
Publications
2,634
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189
Citations
Citations since 2016
27 Research Items
119 Citations
20162017201820192020202120220510152025
20162017201820192020202120220510152025
20162017201820192020202120220510152025
20162017201820192020202120220510152025

Publications

Publications (49)
Article
Full-text available
The floral development in an important legume crop yellow lupine (Lupinus luteus L., Taper cv.) is often affected by the abscission of flowers leading to significant economic losses. Small non-coding RNAs (sncRNAs), which have a proven effect on almost all developmental processes in other plants, might be of key players in a complex net of molecula...
Preprint
Full-text available
Background Yellow lupine (Lupinus luteus L., Taper c.) is an important legume crop. However, its flower development and pod formation are often affected by excessive abscission. Organ detachment occurs within the abscission zone (AZ) and in L. luteus primarily affects flowers formed at the top of the inflorescence. The top flowers’ fate appears det...
Data
qPCR validation of differential expression patterns of selected unigenes. The relative quantification of the gene expression level was determined with qPCR assay using ACTIN as a reference gene. The values presented on top of each bar indicate the expression level derived from the RNA-Seq data.
Data
Annotation of L. luteus DEGs from an FAB vs. FNAB library comparison by KEGG database. (A) Distribution of DEGs into KEGG biological categories. The numbers of KEGG pathways belonging to a category are shown in brackets. (B) Classification of DEGs into the KEGG “Metabolism” category. The numbers of DEGs belonging to a pathway are shown.
Data
Annotation of L. luteus DEGs from an FPAB vs. FPNAB library comparison by KEGG database. (A) Distribution of DEGs into KEGG biological categories. The numbers of KEGG pathways belonging to a category are shown in brackets. (B) Classification of DEGs into the KEGG “Metabolism” category. The numbers of DEGs belonging to a pathway are shown.
Data
Statistical analysis of differentially expressed gene in compared libraries of L. luteus.
Data
Differential expression patterns of cell wall-related genes in library comparison of FAB vs. FNAB, FPAB vs. FPNAB, PAB vs. PNAB.
Data
Annotation of L. luteus DEGs from comparison of PAB vs. PNAB libraries by KEGG database. (A) Distribution of DEGs into KEGG biological categories. The numbers of KEGG pathways belonging to a category are shown in brackets. (B) Classification of DEGs into the KEGG “Metabolism” category. The numbers of DEGs belonging to a pathway are shown in bracket...
Data
Differential expression patterns of plant hormone signaling-related genes in library comparison of PAB vs. PNAB.
Data
List and annotation of differentially expressed genes (DEGs) between FAB and FNAB with PPDE < 0.05.
Data
The enriched pathways (KEGG) of DEGs from library comparison of FPAB vs. FPNAB.
Data
Quality filtering and statistics of raw reads obtained for eight transcriptome libraries of L. luteus.
Data
List and annotation of differentially expressed genes (DEGs) between FPAB and FPNAB with PPDE < 0.05.
Data
List and annotation of common DEGs identified in all three library comparisons of FAB vs. FNAB, FPAB vs. FPNAB, PAB vs. PNAB with FPKM (Fragment Per Kilobase of exon per Million fragments mapped) in each of the libraries.
Data
The enriched pathways (KEGG) of DEGs from library comparison of PAB vs. PNAB.
Data
List of primers used for the RT-qPCR validation and the RT-qPCR validation results.
Data
Differential expression patterns of plant hormone signaling-related genes in library comparison of FAB vs. FNAB.
Data
Differential expression patterns of plant hormone signaling-related genes in library comparison of FPAB vs. FPNAB.
Data
List and annotation of differentially expressed genes (DEGs) between PAB and PNAB with PPDE < 0.05.
Data
The enriched pathways (KEGG) of DEGs from library comparison of FAB vs. FNAB.
Article
Full-text available
Yellow lupine (Lupinus luteus L., Taper c.), a member of the legume family (Fabaceae L.), has an enormous practical importance. Its excessive flower and pod abscission represents an economic drawback, as proper flower and seed formation and development is crucial for the plant’s productivity. Generative organ detachment takes place at the basis of...
Article
Full-text available
Auxin affects almost all of the growth and development processes in plants. The auxin signal transduction pathway involves a number of proteins, among which the key elements are: TAAR auxin receptors (TIR1 and AFB1-3), AUX/IAA auxin response repressors and Auxin Response Factor (ARF) transcription factors. The activity of genes encoding some compon...
Conference Paper
Yellow lupine like the rest belonging to the family Fabaceae (Fabaceae L.), has important practical significance. Development of lupines flowers and fruit and are crucial for the productivity of these plants. Phytohormone auxin (IAA) plays an important role in the regulation of plant ontogeny, including apical dominance, the fruit maturation and ag...
Poster
Yellow lupine like the rest belonging to the family Fabaceae (Fabaceae L.), has important practical significance. Development of lupines flowers and fruit and are crucial for the productivity of these plants. Phytohormone auxin (IAA) plays an important role in the regulation of plant ontogeny, including apical dominance, the fruit maturation and ag...
Poster
Yellow lupin (Lupinus luteus L.) is an important legume crop characterized by high content of seed proteins. The crucial stage for lupin productivity, the formation and development of flowers and seeds, is often associated with the abscission of flowers. Plant development processes are determined by a number of proteins and phytohormones, whose lev...
Poster
Plant hormones auxin have been implicated in almost every aspects of plant development. In the past few years, it was shown that TIR1 (TRANSPORT INHIBITOR RESPONSE1) and some close homologs act as auxin receptors in Arabidopsis thaliana. TIR1 is an integral component of the SKP1/CULLIN/F-BOX PROTEIN (SCF)TIR1 complex that mediates the degradation o...
Poster
The formation and development of flowers and seeds of lupines are crucial for the productivity of the plants. This stage of development, however, is associated with undesirable phenomenon, which is the flowers abscission. The physiological studies and field tests show that to the moment the seeds reach full maturity, on plant stay only pods on the...
Poster
Phytohormone auxin is a key player during pattern formation, organogenesis, and various physiological processes. Auxin signaling and plant development depend on a family of partially redundant F-box receptors of the TAAR (TRANSPORT INHIBITOR RESPONSE 1 / AUXIN SIGNALING F-BOX ROTEIN 2 AUXIN RECEPTOR) clade. They act as a part of the ubiquitin ligas...
Article
Full-text available
MicroRNAs regulate gene expression by guiding the cleavage or attenuating the translation of target mRNAs. In Arabidopsis thaliana, the subset of class II TCP genes (plant-specific group of transcription factors) contains an miR319-binding site. One of them, AtTCP4, regulates negatively leaf growth and positively leaf senescence. In addition, miR31...
Poster
The plant hormone auxin regulates a broad spectrum of developmental processes. Recent advances have been made in the understanding of auxin response pathways, primarily by the characterization of genes encoding Auxin Response Factors (ARF) in Arabidopsis. In addition, expression of some of ARFs is regulated by microRNAs (miRNAs). In A. thaliana, AR...
Conference Paper
The plant hormone auxin regulates a broad spectrum of developmental processes. Recent advances have been made in the understanding of auxin response pathways, primarily by the characterization of genes encoding Auxin Response Factors (ARF) in Arabidopsis. In addition, expression of some of ARFs is regulated by microRNAs (miRNAs). In A. thaliana, AR...
Article
Full-text available
In this study, the first ACC oxidase (PnACO1) cDNA from model short-day plant Pharbitis nil was isolated. The expression pattern of PnACO1 was studied under different conditions (photoperiod and auxin), an adequate balance of which determines P. nil flowering. It was shown that the gene was transcribed in all the examined organs of the 5-day-old se...
Article
Full-text available
Application of gibberellic acid (GA3) on the cotyledons of 5-d-old Pharbitis nil reversed the inhibitory effect of both abscisic acid (ABA) and ethylene on flowering. Application of GA3 slightly decreased ethylene production and did not affect the endogenous ABA content in the cotyledons during the night. However, it reversed the stimulating effect...
Article
Full-text available
In this work we studied interactions between auxin and ethylene in the inhibition of photoperiodic flower induction in SDP Pharbitis nil. To this end, PnACS2 was cloned and its expression was studied under various photoperiodic conditions, as well as under the influence of auxin. The full-length PnACS2 cDNA consists of 1,841bp and encodes for 472 a...
Article
The miR172 gene is involved in the regulation of flowering time and floral organ identity in Arabidopsis thaliana through regulation of APETALA2 (AP2)-like genes' activity. AP2 plays critical roles in establishing meristem and organ identity during floral development. Additionally, the AP2-like genes including TARGET OF EAT1 (TOE1), TOE2, SMZ, SNZ...
Article
Full-text available
The ZEITLUPE (ZTL) protein is involved in the control of circadian period, hypocotyl elongation and flowering time in Arabidopsis thaliana. The aim of the present work was the identification of the InZTL gene and localization of its mRNA in the model short-day plant Ipomoea nil. The deduced InZTL protein of 622 amino acid residues contained a LOV d...
Article
The light- and indole-3-acetic acid (IAA)-regulated 1-aminocyclopropane-1-carboxylic acid (ACC) synthase gene (PnACS) from Pharbitis nil was isolated. Here, it was shown that the gene was expressed in cotyledons, petioles, hypocotyls, root and shoot apexes both in light- and dark-grown seedlings. The highest expression level of PnACS was found in t...
Article
Full-text available
Recently we have shown that in vitro binding of the proximal part of the human tyrosine hydroxylase gene to the nuclear matrix is correlated with its transcriptional activity. The strongest binding potential was predicted by computing for the first intron sequence (Lenartowski & Goc, 2002, Neurosci Lett.; 330: 151-154). In this study a 16 kb fragme...

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Projects

Project (1)
Archived project
The aim of our project is to investigate the role of low-molecular regulatory RNAs and their target genes in the development of generative organs in yellow lupine. We hypothesize that sRNAs may play a considerable role in the regulation of hormonal balance and response to environmental changes. In turn, these factors may affect the efficient process of generative growth of yellow lupine.