Jacek Kesy

Jacek Kesy
Nicolaus Copernicus University | umk

About

98
Publications
14,876
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632
Citations
Citations since 2016
46 Research Items
406 Citations
2016201720182019202020212022020406080
2016201720182019202020212022020406080
2016201720182019202020212022020406080
2016201720182019202020212022020406080

Publications

Publications (98)
Article
Full-text available
Nitrogen (N) is an important element for plant growth and development. Although several studies have examined plants’ response to N deficiency, studies on plants’ response to excess N, which is common in fertilizer-based agrosystems, are limited. Therefore, the aim of this study was to examine the response of barley to excess N conditions, specific...
Article
Full-text available
Trees are generally long-lived and are therefore exposed to numerous episodes of external stimuli and adverse environmental conditions. In certain trees e.g., oaks, taproots evolved to increase the tree’s ability to acquire water from deeper soil layers. Despite the significant role of taproots, little is known about the growth regulation through i...
Article
Full-text available
The main aim of this study was to investigate metabolic responses of fruits, leaves, and shoots of pistachio trees (Pistacia vera L. cv. Kirmizi) during their development. Electron paramagnetic resonance spectroscopy revealed significant increase in generation of semiquinone radicals in fruits and leaves of pistachio, while the flower cluster thinn...
Article
Strawberry fruit (Fragaria × ananassa Duch.) is one of the most consumed fruits worldwide due to its nutritional properties and health promoting effects. The ripening of strawberries is a highly synchronized, genetically programmed and irrevocable phenomenon encompassing a chain of physiological, biochemical and organoleptic alterations. The first...
Article
Full-text available
Taraxacum pieninicum Pawł. is listed as critically endangered species, for which currently applied protection methods are insufficient. The aim of this study was to investigate the possibility of T. pieninicum storage in the form of synthetic seeds under slow-growth conditions in combination with ABA treatment, as one of the ex situ protection meth...
Article
Full-text available
Soluble sugars such as sucrose, glucose and fructose in plant host cells not only play the role as donors of carbon skeletons, but they may also induce metabolic signals influencing the expression of defense genes. These metabolites function in a complex network with many bioactive molecules, which independently or in dialogue, induce successive de...
Article
Full-text available
The aim of the research was to determine selected biochemical and physical characteristics and yielding of fruits in apple varieties (Malus domestica Borkh) such as Gala Schniga, Beni Shogun (Fuji) and Ligol, M.9 rootstock growing in the Wielkopolska region, Poland. high-performance liquid chromatography (HPLC) analysis revealed differences both in...
Article
Full-text available
Rosnące światowe zapotrzebowanie na żywność wymaga wypracowania nowych strategii udoskonalania roślin celem zwiększenia ilości i jakości plonu. Obiecujące możliwości rozwiązania tego problemu oparte są na wykorzystaniu wciąż poszerzającej się wiedzy na temat miRNA, klasy endogennych małych cząsteczek RNA, negatywnie regulujących ekspresję genów na...
Article
Rosnące światowe zapotrzebowanie na żywność wymaga wypracowania nowych strategii udoskonalania roślin celem zwiększenia ilości i jakości plonu. Obiecujące możliwości rozwiązania tego problemu oparte są na wykorzystaniu wciąż poszerzającej się wiedzy na temat miRNA, klasy endogennych małych cząsteczek RNA, negatywnie regulujących ekspresję genów na...
Article
Full-text available
Background: Sugar beet is a highly salt-tolerant crop. However, its ability to withstand high salinity is reduced compared to sea beet, a wild ancestor of all beet crops. The aim of this study was to investigate transcriptional patterns associated with physiological, cytological and biochemical mechanisms involved in salt response in these closely...
Article
Full-text available
Introduction: Chronic kidney disease (CKD) is accompanied by inflammation. The aim of this study was to evaluate the effect of 6-month supplementation with omega-3 acids on selected markers of inflammation in patients with CKD stages 1-3. Methods: Six-month supplementation with omega-3 acids (2 g/day) was administered to 87 CKD patients and to 2...
Article
Full-text available
The involvement of gibberellins (GAs) in the control of flower induction in the short-day plant Ipomoea nil has been investigated. To clarify the molecular basis of this process, we identified the full-length cDNAs of the InGA20ox3 and InGA2ox1 genes, which encode enzymes responsible for GA biosynthesis and catabolism, respectively. We studied the...
Article
Full-text available
The aim of this study was to investigate the effect of an abiotic factor, i.e., lead at various concentrations (low causing a hormesis effect and causing high toxicity effects), on the generation of signalling molecules in pea (Pisum sativum L. cv. Cysterski) seedlings and then during infestation by the pea aphid (Acyrthosiphon pisum Harris). The s...
Article
Full-text available
The main objective of this study was to find the best practice of inducing the sprouting of dormant potato tubers. We compared two protocols of breakage of dormancy, which are based on dipping excised potato eyes in an aqueous solution of gibberellic acid (GA3) and kinetin (standard 1) or in the aqueous solution of GA3, thiourea, and daminozide (s...
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
The duration of dormancy varies significantly among cultivars, but even short dormancy can limit usage of potato microtubers for seed production. The aim of the research was to test efficacy of dormancy breaking by treatment with an aqueous solution of ethyl alcohol, saccharose, gibberellic acid and kinetin (ethanol treatment) in comparison to trea...
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...
Article
Interactions between indole-3-acetic acid (IAA), abscisic acid (ABA), and ethylene (ET) in the photoperiodic flower induction of a short-day (SD) plant Pharbitis nil were investigated. It was shown that both IAA and ABA applied just before and during the first half of the 16-h-long inductive night inhibited flower induction in P. nil. Ethylene is a...
Article
Full-text available
It has been previously suggested that 1-O-IAGluc growth stimulation occurs as the effect of its hydrolysis into a free IAA. In present experiments castanospermine, a known β-glucosidase inhibitor, was included. 1-O-IAGluc in the presence of castanospermine stimulated growth of corn coleoptiles segments even stronger then free IAA. So, it seems that...
Article
This study demonstrates the sequence of enhanced generation of signal molecules such as phytohormones, i.e. jasmonic acid (JA), ethylene (ET), salicylic acid (SA), and a relatively stable free radical, nitric oxide (NO), in response of Pisum sativum L. cv. Cysterski seedling leaves to the infestation of pea aphid Acyrthosiphon pisum (Harris) at a v...
Article
Full-text available
Mechanical damage to scales of Hippeastrum x hybr. bulbs leads to the formation of phytoalexin-like compounds which redden the wounded tissue. The reaction is accompanied by an increase in methyl jasmonate (JA-Me). Applying 2-(4-isobutylphenyl) propionic acid, a jasmonate biosynthesis inhibitor, decreases the level of endogenous jasmonates and decr...
Article
Full-text available
The study examined the influence of light and auxin on the transcription level of PnACO3, a gene involved in ethylene production, in relation to the inhibitory effect of ethylene on flower induction in the short-day plant Pharbitis nil (=Ipomoea nil). Exogenous auxin was shown to increase the level of PnACO3 mRNA, with the effect depending on the e...
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
Abscisic acid is one of the plant hormones that determines normal growth and development, i.e. seeds ripening and germination, stomata opening and closure, flowering and stress responses. An appropriate level of endogenous ABA plays a key role in the regulation of most of these processes. Its content in a particular tissue is a balance between the...
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
Gibberellins (GA), as one of the most important phytohormones, control different aspect of plant growth and development such as seed germination, stem elongation and floral induction. Although identified more than a hundred and thirty GA, only a small number of them are biological active. Many non-bioactive GA are present in plant tissues as precur...
Article
Full-text available
Jasmonates are plant hormones involved in many growth and development processes. They also participate in plant defense responses. Current progress in the study on biosynthesis and signaling of jasmonates has contributed to the understanding of the mechanisms regulating concentration of these hormones in the cell. Sustaining a proper level of jasmo...
Article
Little work was done so far with phytochrome from Pharbitis nil. Purification of phyA from this plant has been exceptionally difficult. Labile phytochrome was presented in too small amount to obtain either absorption spectra or enough protein to produce antibodies. Monoclonal antibodies mAP5, MAC 50, 52, 198 recognized Pharbitis nil labile phytochr...
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
Streszczenie: Gibereliny (GA), jako jedne z podstawowych fitohormonów, kontrolują tak ważne procesy wzrostu i rozwoju roślin jak kiełkowanie nasion, wydłużanie łodyg i indukcję kwitnienia. Z ponad stu trzydziestu różnych GA zidentyfikowanych u roślin, grzybów i bakterii tylko nieliczne – GA1, GA3, GA4, GA5, GA6, GA7 – wykazują aktywność biologiczną...
Article
Gibberellins (GAs), as one of the most important phytohormones, control different aspect of plant growth and development including seed germination, stem elongation and flower induction. Among more than a hundred and thirty GAs identified from plants, fungi and bacteria only a small number of them, such as GA(1), GA(3), GA(4), GA(5), GA(6) and GA(7...
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
Interactions between methyl jasmonate (JA-Me) and ethylene in the photoperiodic flower induction of short-day plant Pharbitis nil were investigated. Both JA-Me and gaseous ethylene applied during the inductive long night caused a decrease in the number of flower buds generated by P. nil. Application of ethylene did not affected niether the level of...
Article
Full-text available
This study evaluated biodegradation of the insecticide deltamethrin (1 μg l(-1)) by pure cultures of neustonic (n = 25) and epiphytic (n = 25) bacteria and by mixed cultures (n = 1), which consisted of a mixture of 25 bacterial strains isolated from the surface microlayer (SM ≈ 250 μm) and epidermis of the Common Reed (Phragmites australis, (Cav.)...
Article
Full-text available
Flowering of plants is controlled by hormones among which both stimulators and inhibitors are present. The role of abscisic acid (ABA) in flower induction of the short day plant Pharbitis nil was shown in our experiments through exogenous applications and endogenous level determination of the hormone in cotyledons of seedlings grown under special l...
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
Full-text available
Plant growth and development, which determinate plant form, require the integration of a variety of environmental signals with the intrinsic genetic program. Fundamental to this process are several growth regulators called the plant hormones or phytohormones. In accordance with definition, the plant hormones are signal molecules produced within the...
Article
Full-text available
Significant progress which was made during last few years in research of jasmonic acid signaling pathway yielded surprising information about chemical form of a signaling molecule of the hormone, which turned out to be its conjugate with amino acid isoleucine. Function of jasmonic acid receptor is more and more frequently attributed to COI1 protein...
Article
Hormones are included in the essential elements that control the induction of flowering. Ethylene is thought to be a strong inhibitor of flowering in short day plants (SDPs), whereas the involvement of abscisic acid (ABA) in the regulation of flowering of plants is not well understood. The dual role of ABA in the photoperiodic flower induction of t...
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...