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    Wyświetlanie 1-15 z 15
    Tytuł:
    Complexation of poly(ethylene glycol) with poly(ethyl methacrylate-co-N-vinyl-2-pyrrolidone) gel based on hydrogen bonds
    Autorzy:
    Liu, G.
    Xie, D.
    Guan, Ch.
    Powiązania:
    https://bibliotekanauki.pl/articles/778809.pdf
    Data publikacji:
    2013
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    complex
    hydrogen bonds
    poly(ethyl methacrylate-co-N-vinyl-2-pyrrolidone) gel
    poly(ethylene glycol)
    Opis:
    The complexes of poly(ethyl methacrylate-co-N-vinyl-2-pyrrolidone) (P(EMA-co-VP)) gel with poly- (ethylene glycol) (PEG) stabilized by the hydrogen bonds were prepared. It was found that both the concentration and the molecular weight of PEG have a strong effect on the P(EMA-co-VP) gel. When PEG was introduced into the P(EMA-co-VP) gel, the glass transition temperatures (Tg) of the complexes decreases with the decreasing of PEG molecular weight. In such a system, the maximum molecular weight of PEG required for the complex formation is no more than 2000, and P(EMA-co-VP)/PEG complexes are a homogeneous amorphous phase, which was studied by FTIR, XRD, TEM, and DSC.
    Źródło:
    Polish Journal of Chemical Technology; 2013, 15, 3; 85-90
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Transcriptomic landscape of Dendrobium huoshanense and its genes related to polysaccharide biosynthesis
    Autorzy:
    Han, R.
    Xie, D.
    Tong, X.
    Zhang, W.
    Liu, G.
    Peng, D.
    Yu, N.
    Powiązania:
    https://bibliotekanauki.pl/articles/57911.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Opis:
    Dendrobium huoshanense has long been used to treat various diseases in oriental medicine. In order to study its gene expression profile, transcripts involved in the biosynthesis of precursors of polysaccharides, as well as mechanisms underlining morphological differences between wild and cultivated plants, three organs of both wild type and cultivated D. huoshanense were collected and sequenced by Illumina HiSeq4000 platform, yielding 919,409,540 raw reads in FASTQ format. After Trinity de novo assembly and quality control, 241,242 nonredundant contigs with the average length of 967.5 bp were generated. qRT-PCR experiment on the selected transcripts showed the transcriptomic data were reliable. BLASTx was conducted against NR, SwissProt, String, Pfam, and KEGG. Gene ontology annotation revealed more than 40,000 contigs assigned to catalytic activity and metabolic process, suggesting its dynamic physiological activities. By searching KEGG pathway, six genes potentially involved in mannose biosynthetic pathway were retrieved. Gene expression analysis for stems between wild and cultivated D. huoshanense resulted in 956 genes differentially expressed. Simple sequence repeats (SSRs) analysis revealed 143 SSRs with the unit size of 4 and 3,437 SSRs the size of 3. The obtained SSRs are the potential molecular markers for discriminating distinct cultivars of D. huoshanense.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2018, 87, 1
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Calculation and analysis of the loss and heat on damper bars in large tubular hydro-generator
    Autorzy:
    Liao, Y.
    Fan, Z.-N.
    Han, L.
    Xie, L.-D.
    Powiązania:
    https://bibliotekanauki.pl/articles/141222.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    loss and heat
    damper bars
    tubular hydro-generator
    electromagnetic field and temperature field
    Opis:
    In order to research the losses and heat of damper bars thoroughly, a multislice moving electromagnetic field-circuit coupling FE model of tubular hydro-generator and a 3D temperature field FE model of the rotor are built respectively. The factors such as rotor motion and non-linearity of the time-varying electromagnetic field, the stator slots skew, the anisotropic heat conduction of the rotor core lamination and different heat dissipation conditions on the windward and lee side of the poles are considered. Furthermore, according to the different operating conditions, different rotor structures and materials, compositive calculations about the losses and temperatures of the damper bars of a 36 MW generator are carried out, and the data are compared with the test. The results show that the computation precision is satisfied and the generator design is reasonable.
    Źródło:
    Archives of Electrical Engineering; 2013, 62, 1; 43-54
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Research on Characterization of Crushability for Foundry Sand Particles
    Autorzy:
    Dai, Y.
    Ma, Q. Y.
    Li, X. H.
    Zhang, X.
    Hu, F. P.
    Zhang, Y.
    Xie, W. D.
    Powiązania:
    https://bibliotekanauki.pl/articles/379689.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    foundry sand particle
    mechanical load
    AFS grain fineness
    crushability
    piasek odlewniczy
    obciążenie mechaniczne
    rozdrobnienie ziarna
    Opis:
    In this paper, crushability of foundry sand particles was studied. Three kinds of in-service silica sands in foundry enterprises selected as the study object, and foundry sand particles were subjected to mechanical load and thermal load during service were analyzed. A set of methods for simulating mechanical load and thermal load by milling and thermal-cold cycling were designed and researched, which were used to characterize the crushability for silica sand particles, the microstructure was observed by SEM. According to the user’s experience in actual application, the crushability of Sand C was the best and then Sand B, the last Sand A. The results indicated that mechanical load, thermal load and thermal-mechanical load can all be used to characterize the crushability of foundry sand particles. Microscopic appearances can qualitatively characterize the crushability of foundry sand particles to a certain extent, combining with the additions and cracks which are observed on the surface.
    Źródło:
    Archives of Foundry Engineering; 2017, 17, 4; 231-235
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Magnetooptics in Layered Nonlinear Structures
    Autorzy:
    Boardman, A. D.
    Xie, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2035662.pdf
    Data publikacji:
    2003
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    42.65.Tg
    42.65.Wi
    42.25.Fx
    78.20.Ls
    Opis:
    The magnetooptics of an asymmetric layered waveguide structure is discussed to investigate the possibility of creating new devices that combine both nonreciprocity and nonlinearity. After addressing some fundamental magnetooptic properties and the kind of materials needed, a straightforward envelope theory is given that exploits the Voigt effect instead of the more obvious Faraday effect. It is emphasised that this choice leads to desirable design features. It is proposed that the introduction of an applied magnetic field to a waveguide structure can be achieved through the use of thin current-carrying strips. It is emphasised that the strips can be arranged to any degree of complexity and that a high degree of control over spatial soliton dynamics can be achieved. Spatial soliton light beams are selected because they can be generated, within a waveguide, in a stable form. The attractive features of using the type of magnetooptic waveguide investigated here are highlighted with examples and it is concluded that the formats proposed can be used for the fully integrated isolator capacity that modern laser systems demand.
    Źródło:
    Acta Physica Polonica A; 2003, 103, 2-3; 121-131
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zasada alokacji niezawodności dla systemu wielkoskalowego
    Reliability allocation principle for large scale system
    Autorzy:
    Xie, L.
    Wang, Y.
    Wang, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/301039.pdf
    Data publikacji:
    2010
    Wydawca:
    Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
    Tematy:
    alokacja niezawodności
    złożoność systemu
    złożoność elementu składowego
    nierówność obciążenia
    zależność uszkodzeniowa
    reliability allocation
    system complexity
    component complexity
    load roughness
    failure dependence
    Opis:
    Przy alokacji niezawodności wielkoskalowego seryjnego systemu mechanicznego o dużej liczbie komponentów, niezawodności elementów składowych alokowane zgodnie z modelem niezawodnościowym dla systemów klasycznych są nierealnie wysokie, mimo że docelowa niezawodność wyznaczona dla danego systemu jest niska. Najogólniej rzecz biorąc, tradycyjny model niezawodnościowy systemu nie może poprawnie wyrażać związku pomiędzy niezawodnością systemu a niezawodnościami elementów składowych z powodu zależności statystycznej zachodzącej pomiędzy uszkodzeniami komponentów. Z tej samej przyczyny, nie można po prostu alokować niezawodności systemu na poszczególne elementy składowe zgodnie z tradycyjnym modelem niezawodności systemu. W oparciu o obszerną analizę czynników kontrolujących zależność uszkodzeniową pomiędzy elementami składowymi, artykuł przedstawia nową definicję złożoności systemu/podsystemu oraz złożoności elementów składowych, zwraca uwagę na nierówność z przewagą niepewności obciążenia i przedstawia zasadę alokacji niezawodności systemu opartą na nierówności obciążenia. Zgodnie z tą zasadą, wymóg niezawodności systemu może być z powodzeniem alokowany na poszczególne elementy składowe i ostatecznie wyznaczany na poziomie rozkładu wytrzymałości elementów składowych.
    For reliability allocation of a large scale series mechanical system composed of a great number of components, the component reliabilities allocated according to classical system reliability model are unrealistically high, even though the assigned target reliability for the system is quite low. Generally, the traditional system reliability model can not properly express the relationship between system reliability and component reliabilities, owing to the statistical dependence among component failures. For the same reason, system reliability can not be simply allocated to the individual components according to traditional system reliability model. Based on comprehensive analysis to the controlling factors for component failure dependence, the present paper introduces a new definition of system/subsystem complexity and component complexity, highlights load uncertainty dominated asperity and presents load roughness based principle for system reliability allocation. According to such a principle, system reliability requirement can be reasonably allocated to components, and totally determined at the level of component strength distribution.
    Źródło:
    Eksploatacja i Niezawodność; 2010, 2; 8-12
    1507-2711
    Pojawia się w:
    Eksploatacja i Niezawodność
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Decay Kinetics from $\text{}^{4}$I $\text{}_{9}\text{}_{/}\text{}_{2}$ State of Mixed 2,6 Pyridine Dicarboxylate-Acetylacetonate Complexes
    Autorzy:
    Xie, R.-Q.
    Flint, C. D.
    Powiązania:
    https://bibliotekanauki.pl/articles/1945621.pdf
    Data publikacji:
    1996-08
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    13.40.Hq
    31.70.Ie
    78.55.Hx
    Opis:
    The $\text{}^{4}$I $\text{}_{9}\text{}_{/}\text{}_{2}$ → $\text{}^{4}$I $\text{}_{15}\text{}_{/}\text{}_{2}$ luminescence decay curves for a series of complexes Er(pdc)$\text{}_{n}$(acac)$\text{}_{3-n}$ (pdc = pyridine-2,6-dicarboxylate, acac = acetylacetonate, n = 0, 1, 2, 3) as solids and in dilute aqueous solutions have been investigated. The decays are multiexponential, possible reasons for this and for the short lifetimes observed are discussed.
    Źródło:
    Acta Physica Polonica A; 1996, 90, 2; 323-325
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    On some properties of quasi-ideal cascades with losses at stages
    Autorzy:
    Sulaberidze, G. A.
    Xie, Q.
    Borisevich, V. D.
    Powiązania:
    https://bibliotekanauki.pl/articles/346917.pdf
    Data publikacji:
    2006
    Wydawca:
    Politechnika Bydgoska im. Jana i Jędrzeja Śniadeckich. Wydział Technologii i Inżynierii Chemicznej
    Tematy:
    quasi-ideal cascade
    multicomponent isotope mixture
    losses
    Opis:
    Some regularities of mass transfer in quasi-ideal cascades with losses at their stages are investigated. Simple relationships to evaluate the influence of losses on the integral characteristics of quasi-ideal cascades under the condition of the low factors of losses are obtained. The optimum parameters of a match-abundance ratio cascade, which is a special case of a quasi-ideal cascade, under the condition of the minimum total flow in a cascade are found.
    Źródło:
    Ars Separatoria Acta; 2006, 4; 67-77
    1731-6340
    Pojawia się w:
    Ars Separatoria Acta
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Numerical investigation of root canal irrigation adopting innovative needles with dimple and protrusion
    Autorzy:
    Li, P.
    Zhang, D.
    Xie, Y.
    Lan, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/307257.pdf
    Data publikacji:
    2013
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    dimple
    protrusion
    innovative needles
    numerical simulation
    passive flow control methods
    root canal irrigation
    wychylenie zębów
    symulacja komputerowa
    kanał zębowy
    Opis:
    As important passive flow control methods, dimples and protrusions have been successfully implemented via geometric modifications to manipulate flow fields to get a desired flow parameters enhancement. In this research, two novel needles were proposed based on a prototype by means of the dimple and protrusion, and flow patterns within a root canal during final irrigation with these needles were numerically investigated. The calculation cases consistent with the clinically realistic irrigant flow rates, which are 0.02, 0.16 and 0.26 mL s–1 are marked as case A, B and C, respectively. The characteristic parameters to estimate irrigation efficiency, such as shearing effect, mean apical pressure, irrigation replacement and fluid agitation, were compared and the optimal geometry in every calculation case was obtained. As shown from the results, flow rates and needle geometries were the causes of irrigation parameters variations. The sum of shear stress, irrigation replacement and fluid agitation were equal in the low flow rate case A, however, the needle with a protrusion on its tip had advantages in the three irrigation characteristic parameters above in calculation case B, and the needle with a dimple on its tip had advantages in calculation case C. Furthermore, the needles proposed did not give rise to the risk of irrigant extrusion. These needles can be better choices at larger flow rates. Therefore, needle geometry optimizations utilizing passive flow control methods are worthy to be investigated in the root canal irrigation enhancement.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2013, 15, 1; 43-50
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The influence of finite element meshing accuracy on a welding machine for offshore platform’s modal analysis
    Autorzy:
    Xie, J.
    Sun, D.
    Xu, C.
    Wu, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/260126.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    finite element analysis
    meshing
    meshing accuracy
    modal analysis
    Opis:
    The purpose objective of this study was to investigate the influence of finite element meshing accuracy on modal analysis which is one of the basic factors affecting the accuracy of finite element analysis and mostly preoccupies the working staff in pre-processing finite element simulation models. In this paper, we established several finite element models of a welding machine for offshore platform, with the meshing accuracy as the variable and workbench software as the platform for modal analysis, as the same time, comparing the analysis results. The results indicated that for some specific structures and simulation types, mesh refinement alone does not achieve desired results, and the authors indicate that mesh refinement is rarely related to the equipment’s low-frequency modal analysis but it’s great related to the equipment’s high-frequency modal analysis. The findings of this study may serve as breaking the opinion that smaller mesh size means higher calculation precision and provides references for mesh division practices in low frequency modal analysis.
    Źródło:
    Polish Maritime Research; 2018, S 3; 147-153
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Kalman filter based method for fault diagnosis of analog circuits
    Autorzy:
    Li, X.
    Xie, Y.
    Bi, D.
    Ao, Y.
    Powiązania:
    https://bibliotekanauki.pl/articles/221517.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    analog fault diagnosis
    signature extraction
    Kalman filter
    Shannon entropy
    Opis:
    This paper presents a Kalman filter based method for diagnosing both parametric and catastrophic faults in analog circuits. Two major innovations are presented, i.e., the Kalman filter based technique, which can significantly improve the efficiency of diagnosing a fault through an iterative structure, and the Shannon entropy to mitigate the influence of component tolerance. Both these concepts help to achieve higher performance and lower testing cost while maintaining the circuit.s functionality. Our simulations demonstrate that using the Kalman filter based technique leads to good results of fault detection and fault location of analog circuits. Meanwhile, the parasitics, as a result of enhancing accessibility by adding test points, are reduced to minimum, that is, the data used for diagnosis is directly obtained from the system primary output pins in our method. The simulations also show that decision boundaries among faulty circuits have small variations over a wide range of noise-immunity requirements. In addition, experimental results show that the proposed method is superior to the test method based on the subband decomposition combined with coherence function, arisen recently.
    Źródło:
    Metrology and Measurement Systems; 2013, 20, 2; 307-322
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dynamics of χ$\text{}^{(2)}$ Solitary Waves: a Multiple Scales Approach
    Autorzy:
    Boardman, A. D.
    Bontemps, P.
    Xie, K.
    Zharov, A. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2008211.pdf
    Data publikacji:
    1999-05
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    42.65.-k
    42.65.Tg
    Opis:
    The dynamics of solitary waves in second-order nonlinear materials are discussed using a multiple scales model. After making some comments on the applicability of other perturbation techniques the multiple scales approach is developed with a view to setting up a line of approach that, in principle, permits radiative effects to be modelled. After a closure condition is applied, equations for the evolution of dynamical variables are developed. Applications of these equations to loss and interactions are presented together with confirmation from numerical simulations. It is emphasised that the method is capable of extension to higher-order perturbations and, hence, into the solitary wave fusion region. The established interpretation of quasi-phase-matching fluctuations as loss is discussed and the simple problems of soliton (solitary wave) pair interactions in both loss-free and lossy media are analysed.
    Źródło:
    Acta Physica Polonica A; 1999, 95, 5; 705-718
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Catalytic decomposition of toluene over La1-xSr xMnO3/palygorskite synthesized catalysts
    Autorzy:
    Song, L.
    Chen, T.
    Chen, D.
    Chen, Y.
    Xie, J.
    Liu, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/207996.pdf
    Data publikacji:
    2013
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    catalysts
    manganese
    manganese oxide
    toluene
    transmission electron microscopy
    X ray diffraction
    Palygorskite
    katalizatory
    mangan
    tlenek manganu
    toluen
    transmisyjna mikroskopia elektronowa
    dyfrakcja promieniowania rentgenowskiego
    Opis:
    Palygorskite (PG) supported La1-xSrxMnO3 catalysts were fabricated by copreripitation. The catalysts were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), specific surface area (SSA) and H2 temperature programmed reduction (H 2-TPR). Catalytic activity for VOCs was examined by using toluene as a model compound. The results show that the surface area as well as mechanical strength of catalysts increase substantially after catalysts loaded in PG. XRD patterns show that after calcination at 700 0C, PG as a support in 9% LaMn03/PG and 9% La0.7Sr0.3MnO3/PG was transformed into amorphous phase and the morphology was not destroyed. It was well established that the main reductive components are factually Mn(III) or Mn(IV) oxides in catalysts based on the results of TPR. It was also found that Mn(IV) increases while Mn(III) reduces responding with the increasing amount of Sr. Toluene conversion rate of as-preparedμ% La1-xSr xMnO3/PG increases with the increasing values of x and μ when x=0-0.3 and μ = 3-9%. Toluene can be converted completely at 285 0C by 9% La0.7Sr0.3MnO3/PG catalyst while no significant change was observed after addition on the doping and loading amount of Sr. During a 100 h stability experiment of 9% La 0.7Sr0.3MnO3/PG catalyst, toluene removal was found to be above 95%.
    Źródło:
    Environment Protection Engineering; 2013, 39, 3; 31-42
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Enhancing light harvesting of organic solar cells by using hybrid microlenses
    Autorzy:
    Xiao, X
    Zhang, Z
    Xie, S
    Liu, Y
    Hu, D
    Du, J
    Powiązania:
    https://bibliotekanauki.pl/articles/174313.pdf
    Data publikacji:
    2015
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    organic solar cells
    hybrid microlens
    light harvesting
    achromatization
    Opis:
    Organic solar cells have drawn intense attentions in recent years due to their inherent advantages. But the relatively low power conversion efficiency is the main obstacle in the way of organic solar cell commercialization. One of the main reasons that limit the power conversion efficiency is the mismatch between electrical transmission properties and light absorption properties in an organic active layer. In this work, a highly efficient light trapping scheme with a hybrid microlens array is proposed to resolve this contradiction. This structure can achieve broadband absorption enhancement in the spectrum of interest by chromatic aberration correction and hole parameter adjustment. And the light trapping element can be separated from cells to avoid direct contact with an organic layer that may cause electrical defects. Moreover, it is also compatible with low cost manufacturing technologies.
    Źródło:
    Optica Applicata; 2015, 45, 1; 89-100
    0078-5466
    1899-7015
    Pojawia się w:
    Optica Applicata
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Common mycelium networks with Paraglomus occultum induce better plant growth and signal substance changes between trifoliate orange seedlings
    Autorzy:
    Zhang, Y.-C.
    Xie, M.-M.
    Feng, H.-D.
    Zhou, M.
    Zhang, Z.Z.
    Liu, C.-Y.
    Wu, Q.-S.
    Powiązania:
    https://bibliotekanauki.pl/articles/11877054.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Opis:
    Mycorrhizal mycelium can simultaneously colonize two and more neighboring plants to form common mycelium network (CMNs), whereas the information regarding CMN effects on endogenous signal substances is limited. In this study, a rootbox was separated by 37- or 0.45-μm mesh to establish donor chamber (the presence of roots and hyphae) and receptor (hyphae presented or not, free of roots) chamber, where an arbuscular mycorrhizal (AM) fungus Paraglomus occultum was inoculated into trifoliate orange seedlings of donor chamber to illustrate the underground communications of signal substances by CMNs. Mycorrhizal colonization resulted in better plant growth performance and greater root morphology in donor and receptor plants. AM inoculation increased significantly the root nitric oxide (NO) and calmodulin (CaM) levels of donor plants, regardless of 37- and 0.45-μm mesh, and subsequent CMNs induced higher root NO and CaM levels in receptor plants. Mycorrhizal colonization did not produce significant changes in root zeatin riboside (ZR) levels of donor plants, but CMN hyphae modulated lower root ZR levels of receptor plants. Mycorrhizal inoculation and subsequent CMN hyphae induced lower root gibberellin levels of donor and receptor plants, and only CMN hyphae produced lower root methyl jasmonate concentrations of receptor plants. Our results first reveal the underground communication of CaM, NO, and ZR by CMNs with P. occultum between trifoliate orange seedlings.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2018, 17, 6; 95-104
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-15 z 15

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