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Wyświetlanie 1-15 z 18
Tytuł:
Acclimation of acacia hybrid (Acacia mangium x Acacia auriculiformis) vegetative propagules to soil water deficits
Autorzy:
Alamgir, Kabir M
Rafiqul Hoque, A.T.M.
Kamaluddin, M.
Powiązania:
https://bibliotekanauki.pl/articles/41229.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
acacia
acacia hybrid
Acacia mangium x Acacia auriculiformis
acclimation
soil water deficit
rooted cutting
biomass
leaf area
specific leaf area
water deficit
soil moisture
Bangladesh
Opis:
The aim of the present work was to investigate the acclimation potential of acacia hybrid (Acacia mangium Willd×Acacia auriculiformis A.Cunn.ex Benth)vegetative propagules to soil water stress in the nursery of Institute of Forestry and Environmental Sciences, Chittagong University. Acacia hybrid showed significant decrease in total plant biomass in two months water-stressed conditions. Allocation of assimilates to root growth relative to shoot found to be an important acclimation mechanism. Leaf area ratio (LAR)increased under water-stressed plants with simultaneous increase in specific leaf area (SLA)but almost no change in leaf weight ratio (LWR). Significant increase in LAR with limited water supply by increasing SLA was likely to be an important acclimation potential since this relative increase in leaf area compensated, at least partially, for a lower photosynthesis under water-stressed conditions aswas evident from decreased mean total biomass under water-stressed regimes.
Źródło:
Dendrobiology; 2006, 56; 37-43
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The role of PsbS in regulation of the cellular light memory
Autorzy:
Barczak, A.
Kulasek, M.
Karpinski, S.
Powiązania:
https://bibliotekanauki.pl/articles/80537.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
cellular light memory
acclimation
Arabidopsis thaliana
photosystem II
cell death
PsbS protein
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of repeated cold water swimming exercise on adaptive changes in body weight in older rats
Autorzy:
Bryczkowska, Iwona
Baranowska-Bosiacka, Irena
Lubkowska, Anna
Powiązania:
https://bibliotekanauki.pl/articles/1055019.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
Tematy:
body weight
cold-acclimation
exercise training
rats
swimming exercise
Opis:
The aim of this study was verification whether an 8-week-long swimming exercise training would induce adaptive changes in body weight in rats and whether possible changes would depend on aquatic environment temperature and animal sex. The exercisetrained groups swam 4 minutes a day, five days a week during eight week of housing. Exercise was performed by swimming in glass tanks containing tap water maintained according to group at 5 ±2°C (cold group) and 36 ±2°C (thermal neutral group). Before and after each week of the experiment, rats were weighed. When comparing the nature of changes in the body weight of rats exposed to swimming exercise training in cold water, attention should be paid to their dependence on sex. There were statistically significant changes in the nature of changes in body weight between male rats and female rats of the cold group (5°C) as early as experimental week 2 until the end of the experiment (p < 0.001). Interestingly, the females exposed to swimming exercise training at 5°C were the only group in which an increase in body weight occurred during experimental week 8 in relation to baseline values.
Źródło:
Central European Journal of Sport Sciences and Medicine; 2017, 18, 2; 77-87
2300-9705
2353-2807
Pojawia się w:
Central European Journal of Sport Sciences and Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Warm rearing modifies temperature regulation in rats
Autorzy:
Caputa, M
Demicka, A.
Powiązania:
https://bibliotekanauki.pl/articles/69562.pdf
Data publikacji:
1995
Wydawca:
Polskie Towarzystwo Fizjologiczne
Tematy:
warm acclimation
brain
warm rearing
salivary gland
temperature regulation
rat
Źródło:
Journal of Physiology and Pharmacology; 1995, 46, 2
0867-5910
Pojawia się w:
Journal of Physiology and Pharmacology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improvement of in vitro propagation and acclimation of Helichrysum arenarium L. Moench
Optymalizacja procedury mikrorozmnażania in vitro i aklimatyzacja Helichrysum arenarium (L.) Moench
Autorzy:
Figas, A.
Tomaszewska-Sowa, M.
Sawilska, A.
Keutgen, A.J.
Powiązania:
https://bibliotekanauki.pl/articles/11543284.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
in vitro propagation
acclimation
medicinal plant
Compositae
Helichrysum arenarium
yellow everlasting
phytohormone
rooting
in vivo condition
Opis:
Explants of apical buds of sandy everlasting Helichrysum arenarium L. Moench sterilized with calcium hypochlorite – Ca(OCl₂) were placed onto Murashige- -Skoog (MS) growth medium enriched with 1 mg∙dm⁻³ KIN (kinetin) in two consecutive passages. To optimize the procedure of in vitro micropropagation, the axillary shoots of Helichrysum arenarium L. Moench were transferred during the third passage onto 9 different combinations of MS medium without plant growth regulators (PGRs-free medium), with different concentrations of KIN (1.0, 3.0, 4.0, 5.0 mg∙dm⁻³) and KIN (1.0, 3.0, 4.0, 5.0 mg∙dm⁻³) with IAA (indole-3-acetic acid) (0.5 mg dm⁻³). The highest mean number of shoots (24.7) was observed on MS medium with 5 mg∙dm⁻³ KIN and 0.5 mg∙dm⁻³ IAA. The achieved branched shoots were rooted and acclimatized. Rhizogenesis was intensified by the presence of growth hormones: 0.5 mg∙dm⁻³ IAA or 0.5 mg∙dm⁻³ IBA (indole-3-butyric acid). At the stage of acclimation of plantlets the application of a water solution of MS salts (25%) for watering the plants increased the efficacy of plant acclimation from 56 to 75%.
Wysterylizowane za pomocą podchlorynu wapnia – Ca(OCl₂) pąki szczytowe kocanek piaskowych Helichrysum arenarium (L.) Moench wykładano w dwóch kolejnych pasażach na pożywkę MS [Murashige i Skoog 1962] wzbogaconą w 1 mg∙dm⁻³ KIN (kinetyna). W celu optymalizacji procedury mikrorozmnażania w kulturach in vitro w trzecim pasażu pędy boczne inokulowano na 9 wariantów pożywek MS bez regulatorów wzrostu, z dodatkiem KIN (1,0; 3,0; 4,0; 5,0 mg∙dm⁻³) oraz KIN (1,0; 3,0; 4,0; 5,0 mg∙dm⁻³) i kwasu indolilo-3-octowego – IAA (0,5 mg∙dm⁻³). Największą średnią liczbę pędów (24,7) odnotowano na pożywce z dodatkiem 5 mg∙dm⁻³ KIN (kinetyna) i 0,5 mg∙dm⁻³ IAA (kwas indolilo-3 octowy). Uzyskane pędy boczne poddano ukorzenianiu i aklimatyzacji. Proces ryzogenezy intensyfikowała zawartość regulatorów wzrostu 0,5 mg∙dm⁻³ IAA i 0,5 mg∙dm⁻³ IBA (kwas indolilo 3-masłowy). Na etapie aklimatyzacji mikrosadzonek zastosowanie do nawadniania 25% roztworu soli MS spowodowało poprawę efektywności aklimatyzacji roślin z 56 do 75%.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2016, 15, 4; 17-26
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Quality of Japanese larch stands in Poland
Autorzy:
Filipiak, M
Pilarek, Z.
Powiązania:
https://bibliotekanauki.pl/articles/41203.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
forest productivity
forestry
stand
Larix kaempferi
Polska
acclimation
Japanese larch
Opis:
The quality of 39 Japanese larch stands, mainly in north-western Poland, was characterized. On the basis of the presented results it can be concluded that properly managed forest stands of Japanese larch can compete in trees quality with stands of native larches. The alien species is more susceptible to a lower stand density and exposure to strong winds. This is no correlation between forest stand quality and growth dynamics.
Źródło:
Dendrobiology; 2003, 49
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Relation between the height of Larix kaempferi and some climatic characteristics in Poland
Autorzy:
Filipiak, M
Napierala-Filipiak, A.
Powiązania:
https://bibliotekanauki.pl/articles/41673.pdf
Data publikacji:
2008
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Polska
climate
temperature precipitation
acclimation
Japanese larch
Larix kaempferi
exotic species
woodland
climatic zone
height
larch stand
Opis:
Japanese larch (Larix kaempferi Sarg.) is one of the most frequent exotic species in Polish woodlands. The basic object of research comprised 60 stands of the studied species, located mainly in the northern and western parts of Poland. The growth results for the studied species, evaluated on the basis of the average height (hg55), were compared with data describing the local climate and the stand location within the botanical and climatic zoning. The results confirm the opinion that the Japanese larch prefers a climate of maritime character and generally shows high degree of flexibility regarding its climatic requirements (very large differences between the growth conditions in the studied area and the country of origin). The dependence between the growth results and precipitation is however lower than expected. The most interesting results include the relatively clear connection between the height of the larch stands and the Degórski’s (1984) ‘floristic’ ‘K’ (continentality) index.
Źródło:
Dendrobiology; 2008, 60; 11-17
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Acer truncatum seedlings are more plastic than Quercus variabilis seedlings in response to different light regimes
Autorzy:
Guo, X.
Wang, R.-Q.
Wang, C.D.
Xu, F.
Zhao, S.
Guo, W.-H.
Powiązania:
https://bibliotekanauki.pl/articles/41339.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Acer truncatum
seedling
Quercus variabilis
Chinese cork oak
plant response
light regime
irradiance acclimation
chlorophyll fluorescence
morphology
photoinhibition
Opis:
In this study, we investigated responses of the mid-successional species Acer truncatum Bunge and the late-successional species Quercus variabilis Blume to three solar illumination conditions: (1) constant low light (CL), (2) constant high light (CH) and (3) low light first and high light afterwards (LH). The last treatment was to simulate a canopy opening. Both species exhibited increases in biomass, totally and in part, and decreases in leaf water content, specific leaf area and chlorophyll concentrations in LH treatment compared to CL treatment. For A. truncatum, exposure to high light condition (LH) increased crown area, and decreased root to shoot ratio, stem mass ratio and leaf perimeter. However, for Q. variabilis, LH treatment increased stem diameter at ground height, effective quantum yield, photochemical quenching and decreased maximum photosystem II quantum yield. The biomass allocation pattern did not change in Q. variabilis among three light conditions. With respect to newly developed leaves, no significant differences were found in leaf size of Q. variabilis between LH treatment and CH treatment while that of A. truncatum decreased in LH treatment. All chlorophyll fluorescence parameters in newly developed oak leaves in LH treatment increased compared to those of CH treatment while no difference was found for A. truncatum between LH and CH treatment. A. truncatum displayed a greater overall plasticity than Q. variabilis although the oak seedlings have a greater plasticity with respect to chlorophyll concentration and chlorophyll fluorescence parameters. A. truncatum should be a better candidate for vegetation recovery, especially in places with heterogeneous light conditions.
Źródło:
Dendrobiology; 2016, 76
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of stress conditions on acclimation of magnolia Magnolia x soulangiana Soul.-Bod.
Wpływ warunków stresu na aklimatyzację magnolii Magnolia x soulangiana Soul.-Bod.
Autorzy:
Kamenicka, A.
Lanakova, M.
Cerna, K.
Powiązania:
https://bibliotekanauki.pl/articles/808264.pdf
Data publikacji:
2002
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
stress condition
acclimation
magnolia
Magnolia x soulangiana
tissue culture
leaf cell
donor plant
Opis:
Under a scanning microscope, leaves from tissue cultures (after 8 weeks in vitro culturing), from 1 year old regenerants and from the 100 years old donor tree were studied. More abnormalities were observed in the tissue culture compared to regenerant and donor. During tissue culture transfer rapid, leaf dehydration occurs due to defective regulation mechanisms making stomata of tissue culture stay open. Epidermis as well as stomata cells were observed already on the leaves in in vitro conditions, but they become physiologically functioning only after transfer into conditions of natural environment.
Przy zastosowaniu mikroskopu scaningowego porównywano cechy budowy komórek liści pochodzących z 100 letniej rośliny matecznej, 8 tygodniowych kultur tkankowych oraz 1 rocznych regeneratów. W regenerantach z kultur tkankowych obserwowano więcej nienormalności w budowie komórek epidermy, komórek szparkowych i komórek przyszparkowych w porównaniu z komórkami pochodzącymi z rośliny matecznej. Podczas przenoszenia tkanek w kulturze in vitro obserwowano odwodnienie tkanek liści a mimo to komórki szparkowe pozostawały otwarte. Komórki epidermy oraz komórki szparkowe były obecne na liściach hodowli in vitro jednak stawały się one fizjologicznie funkcjonalne tylko wtedy gdy zostały przeniesione do warunków naturalnych.
Źródło:
Zeszyty Problemowe Postępów Nauk Rolniczych; 2002, 481, 1
0084-5477
Pojawia się w:
Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Apoplastic ROS sensing and signalling
Autorzy:
Kangasjarvi, J.
Powiązania:
https://bibliotekanauki.pl/articles/80047.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
reactive oxygen species
signalling
plant cell
stress adaptation
acclimation
cysteine-rich protein
extracellular protein
gene regulation
marker gene
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of photo- and chromatic acclimation on pigment composition in the sea
Autorzy:
Majchrowski, R.
Ostrowska, M.
Powiązania:
https://bibliotekanauki.pl/articles/47601.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
marine phytoplankton
underwater irradiance
chlorophyll c
chlorophyll b
chlorophyll a
phytoplankton pigment
photosynthetic pigment
photoacclimation
natural population
sea
ocean
chromatic acclimation
Opis:
The aim of this work was to find statistical relationships between the concentrations of accessory pigments in natural populations of marine phytoplankton and the absolute levels and spectral distributions of underwater irradiance. To this end, empirical data sets from some 600 stations in different parts of the seas and oceans were analysed. These data were obtained from the authors’ own research and from the Internet’s bio-optical data base. They included the vertical distributions of the concentrations of various pigments (identified chromatographically) and the vertical and spectral distributions of the underwater irradiance measured in situ or determined indirectly from bio-optical models. The analysis covered a total of some 4000 points illustrating the dependence of pigment concentration on underwater irradiance characteristics, corresponding to different depths in the sea. The analysis showed that the factor governing the occurrence of photoprotecting carotenoids (PPC) is short-wave radiation λ < 480 nm. A mathematical relationship was established between the relative PPC concentration (relative with respect to the chlorophyll a concentration) and the magnitude of the absorbed radiative energy per unit mass of chlorophyll a from the spectral interval λ < 480 nm, averaged in the water layers Δz = 60 m (or less near the surface) to account for vertical mixing. This absorbed short-wave radiation (λ < 480 nm) was given the name of Potentially Destructive Radiation (PDR∗(z)). Analysis of the relationships between the concentrations of particular photosynthetic pigments (PSP), i.e. chlorophyll b, chlorophyll c, photosynthetic carotenoids (PSC), and the underwater irradiance characteristics indicated that these concentrations were only slightly dependent on the absolute level of irradiance E0(λ), but that they depended strongly on the relative spectral distribution of this irradiance f(λ) = E0(λ)/PAR0. The relevant approximate statistical relationships between the relative concentrations of particular PSP and the function of spectral fitting Fj , averaged in the layer Δz, were derived. Certain statistical relationships between the pigment composition of the phtyoplankton and the irradiance field characteristics are due to the photo- and chromatic acclimation of natural populations of marine phytoplankton. These relationships can be applied in models of the coefficients of light absorption by phytoplankton.
Źródło:
Oceanologia; 2000, 42, 2
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Temporal-spatial interaction between ROS and ABA controls rapid systemic acclimation in plants
Autorzy:
Mittler, R.
Powiązania:
https://bibliotekanauki.pl/articles/81026.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
spatial interaction
reactive oxygen species
sessile organism
plant
rapid systemic acclimation
plant survival
stress
signalling mechanism
abiotic stress
systemic acquired acclimation
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of temperature and photoperiod on glucose, glycerol and glycogen concentrations in Helix pomatia Linnaeus, 1758 in spring and autumn
Autorzy:
Nowakowska, A.
Caputa, M.
Rogalska, J.
Powiązania:
https://bibliotekanauki.pl/articles/83003.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
Tematy:
temperature effect
photoperiod
glucose concentration
glycerol concentration
glycogen concentration
Helix pomatia
spring
autumn
cold tolerance
acclimation
snail
land snail
nutritional status
reproductive status
Opis:
One of the variables oscillating seasonally in Helix pomatia L., described in our previous paper, was their rudimentary cryoprotection provided by modest increases in haemolymph glucose and glycerol concentrations in autumn and early spring, respectively. Because factors governing cryoprotective responses are unknown, we decided to investigate the effects of spring and autumn acclimation of H. pomatia to different thermal and photoperiod conditions on the changes in haemolymph concentrations of glucose and glycerol and on the glycogen level in selected organs. Neither acclimation to short-day photoperiod nor low ambient temperature evoked increase in glucose and glycerol concentration in spring and autumn. Both acclimation variants decreased hepatopancreatic glycogen level. The rudimentary freeze-tolerance in H. pomatia seems to be a combined effect of cold and short-day photoperiod and might also be affected by their nutritional and reproductive status. The effect of exposure to frost-bite is also likely to be involved.
Źródło:
Folia Malacologica; 2011, 19, 3
1506-7629
Pojawia się w:
Folia Malacologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Redox control of photosynthetic acclimation in plants
Autorzy:
Pfannschmidt, T.
Powiązania:
https://bibliotekanauki.pl/articles/81175.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
redox control
photosynthesis
acclimation
plant
dynamic process
stoichiometry
nuclear gene
stress-resistant crop
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
In vitro cultures of aquatic plants
Autorzy:
Pozoga, M.
Kulykovets, O.
Kukula, W.
Gunerka, L.
Powiązania:
https://bibliotekanauki.pl/articles/951239.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
aquatic plant
in vitro culture
acclimation
aquarium
pot plant
axenic culture
submerged plant
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2015, 96, 1
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
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