A5004353731- Plant Stress Responses and Tolerance
- Genetic Mapping and Diversity in Plants and Animals
- Plant Molecular Biology Research
- Photosynthetic Processes and Mechanisms
- Crop Yield and Soil Fertility
- Plant nutrient uptake and metabolism
- Plant responses to water stress
- Light effects on plants
- Plant Genetic and Mutation Studies
- Lipid metabolism and biosynthesis
- Plant Micronutrient Interactions and Effects
- Plant Gene Expression Analysis
- Polysaccharides and Plant Cell Walls
- Metabolomics and Mass Spectrometry Studies
- Plant responses to elevated CO2
- Genetics and Plant Breeding
University of Warsaw
2009-2025
Maize, despite being thermophyllic due to its tropical origin, demonstrates high intraspecific diversity in cold-tolerance. To search for molecular mechanisms of this diversity, transcriptomic response cold was studied two inbred lines contrasting Microarray analysis followed by extensive statistical elaboration data, literature data mining, and gene ontology-based classification. The used had been bred earlier specifically determination QTLs cold-performance photosynthesis. This allowed...
The cell wall emerged as one of the important structures in plant stress responses. To investigate effect cold on properties, content and localization pectins pectin methylesterase (PME) activity, were studied two maize inbred lines characterized by different sensitivity to cold. Low temperature (14/12 °C) caused a reduction PME activity leaves chilling-sensitive line, especially after prolonged treatment (28 h 7 days). Furthermore, immunocytohistological studies, using JIM5 JIM7 antibodies,...
Recent progress in selective breeding of maize (Zea mays L.) towards adaptation to temperate climate has allowed the production inbred lines withstanding cold springs with temperatures below 8 °C or even close 0 °C, indicating that despite its tropical origins is not inherently cold-sensitive. Here we studied acclimatory response three contrasting cold-sensitivity selected basing on multi-year routine field data. The observations were confirmed growth chamber. Under controlled conditions...
In plants, CALCIUM-DEPENDENT PROTEIN KINASES (CDPKs/CPKs) are involved in calcium signaling response to endogenous and environmental stimuli. Here, we report that ZmCPK11, one of maize CDPKs, participates salt stress tolerance. Salt induced expression upregulated the activity ZmCPK11 roots leaves. Activation upon was also observed leaves transgenic Arabidopsis plants expressing ZmCPK11. The showed a long-root phenotype under control conditions short-root NaCl, abscisic acid (ABA) or jasmonic...
Maize is a cold-sensitive species, but selective breeding programs have recently succeeded in producing plants strikingly well adapted to the cold springs of temperate climate, showing potential for improved tolerance. The aim present study was determine whether adaptation some inbred lines spring chills due their increased true tolerance or it only represents an avoidance mechanism, which sole mode during early stages agricultural dispersal maize towards higher latitudes. By characterizing...
Abstract Background Maize cultivation has considerably expanded beyond its place of origin in Central America. The successful adaptation maize to temperate climates can be achieved by selecting genotypes that demonstrate tolerance low temperatures, especially cold springs. In maize, at the early growth stages enables sowing, a long growing season, and eventually high yields, even climates. during not been thoroughly investigated; therefore, we tested working hypothesis several distinct...
In maize seedlings, severe cold results in dysregulation of circadian pattern gene expression causing profound modulation transcription genes related to photosynthesis and other key biological processes. Plants live highly cyclic life their response environmental stresses must allow for underlying rhythms. To study the interplay a stress rhythmic cue we investigated transcriptomic seedlings low temperature context diurnal expression. Severe had pronounced effect on rhythm substantial...
Maize is a cold-sensitive plant whose physiological reactions to sub-optimal temperatures are well understood, but their molecular foundations only beginning be deciphered. In an attempt identify key genes involved in these reactions, we surveyed several independent transcriptomic studies addressing the response of juvenile maize moderate or severe cold. Among tens thousands found change expression upon cold treatment less than 500 were reported more one study, indicating astonishing...
Intercellular transport in C4 plant, including maize, is particularly important due to the necessity of efficient exchange photoassimilates between different types cells, where specific stages photosynthesis occur. The on trail: mesophyll—bundle sheath—vascular parenchyma occurs by symplast, through plasmodesmata. next stage, phloem loading (the photosynthetic products companion cell/sieve element complex) belongs apoplasmic type, without participation This work concerns verification...
Background Numerous biochemical and physiological parameters of living organisms follow a circadian rhythm. Although such rhythmic behavior is particularly pronounced in plants, which are strictly dependent on the daily photoperiod, data molecular aspects diurnal cycle plants scarce mostly concerns model species Arabidopsis thaliana. Here we studied leaf transcriptome seedlings maize, an important C4 crop only distantly related to A. thaliana, throughout 10 h darkness 14 light look for...
Abstract Maize is a subtropical, cold-sensitive species. However, some varieties of this species have the potential to withstand long-term low temperatures, even at seedling stage. The molecular basis phenomenon has not been determined. In chromatin-level study, we compared cold-stress reaction seedlings two maize inbred lines showing contrasting levels cold sensitivity. cold-tolerant line was selected based on field data and previous physiological transcriptomic level studies. first...