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    Wyświetlanie 1-5 z 5
    Tytuł:
    Localization of acid phosphatase activity in the apoplast of root nodules of pea [Pisum sativum]
    Autorzy:
    Sujkowska, M
    Borucki, W.
    Golinowski, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/58311.pdf
    Data publikacji:
    2006
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    localization
    acid phosphatase activity
    apoplast
    root nodule
    pea
    Pisum sativum
    symbiotic interaction
    Opis:
    Changes in the activity of acid phosphatase (AcPase) in the apoplast of pea root nodule were investigated. The activity was determined using lead and cerium methods. The results indicated a following sequence of AcPase activity appearance during the development of the infection thread: 1) low AcPase activity appears in the outer part of cells of symbiotic bacteria; 2) bacteria show increased AcPase activity, and the enzyme activity appears in the thread walls; 3) activity exhibits also matrix of the infection thread; 4) bacteria just before their release from the infection threads show high AcPase activity; 5) AcPase activity ceases after bacteria transformation into bacteroids. The increase in bacterial AcPase activity may reflect a higher demand for inorganic phosphorus necessary for propagation of the bacteria within the infection threads and/or involved in bacteria release from the infection threads.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2006, 75, 1; 33-38
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Algae commensal community in Genlisea traps
    Autorzy:
    Plachno, B J
    Wolowski, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/57017.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    Lentibulariaceae
    algal community
    carnivorous syndrome
    enzyme activity
    botany
    carnivorous plant
    plant-microbe interaction
    phosphatase
    Genlisea
    Opis:
    The community of algae occurring in Genlisea traps and on the external traps surface in laboratory conditions were studied. A total of 29 taxa were found inside the traps, with abundant diatoms, green algae (Chlamydophyceae) and four morphotypes of chrysophytes stomatocysts. One morphotype is described as new for science. There are two ways of algae getting into Genlisea traps. The majority of those recorded inside the traps, are mobile; swimming freely by flagella or moving exuding mucilage like diatoms being ablate to colonize the traps themselves. Another possibility is transport of algae by invertebrates such as mites and crustaceans. In any case algae in the Genlisea traps come from the surrounding environment. Two dominant groups of algae (Chladymonas div. and diatoms) in the trap environment, show ability to hydrolyze phosphomonoseters. We suggest that algae in carnivorous plant traps can compete with plant (host) for organic phosphate (phosphomonoseters). From the spectrum and ecological requirements of algal species found in the traps, environment inside the traps seems to be acidic. However, further studies are needed to test the relations between algae and carnivorous plants both in laboratory conditions and in the natural environment. All the reported taxa are described briefly and documented with 74 LM and SEM micrographs.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2008, 77, 1
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Arbuscular mycorrhiza of herbs colonizing a salt affected area near Krakow [Poland]
    Autorzy:
    Grzybowska, B
    Powiązania:
    https://bibliotekanauki.pl/articles/58765.pdf
    Data publikacji:
    2004
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    herb
    Glomus intraradices
    Polska
    Glomus claroideum
    Glomus caledonium
    arbuscular mycorrhiza
    Krakow area
    salinity
    Glomus geosporum
    halophyte
    alkaline phosphatase test
    glycophyte
    Opis:
    The arbuscular mycorrhizal (AM) status of plants colonizing an area affected by leakage of salty water (Barycz near Kraków, Poland) was studied in 2000 and 2001. The occurrence of plants typical for soils of increased salinity was observed. Among the 13 examined plant species 7 were mycorrhizal. The abundance of mycorrhizal plant populations was increased in the second year of study. Strains of 4 species of AMF, including Glomus caledonium, G. claroideum, G. geosporum and G. intraradices were isolated using trap cultures. On the basis of morphological characters the presence of G. tenue was detected in plant roots of several species from the study area. The efficiency of mycorrhizal colonization and arbuscule formation by two strains of G. geosporum isolated from a saline area and a strain of G. intraradices from unaffected sites was tested in an experiment carried out on Plantago lanceolata cultivated on substrata of different salinity levels. The increase in mycorrhizal parameters with growing salt content was observed in the case of strains originating from the salt-affected area. At the highest salt level these strains formed better developed mycorrhiza than the strain from the non-saline site, suggesting a better adaptation of the strains from the saline area. The data on vitality (alkaline phosphatase test) of intraradical AM fungi gave a clearer picture than those obtained by the conventional aniline blue staining.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2004, 73, 3
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Soil acid phosphomonoesterase activity and phosphorus forms in ancient and post-agricultural black alder [Alnus glutinosa (L.) Gaertn.] woodlands
    Autorzy:
    Orczewska, A.
    Piotrowska, A.
    Lemanowicz, J
    Powiązania:
    https://bibliotekanauki.pl/articles/57312.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    soil
    acid phosphomonoesterase
    acid phosphatase activity
    phosphorus form
    ancient forest plant species
    tree stand
    forest soil
    black alder
    Alnus glutinosa
    woodland
    Polska
    post-agricultural soil
    Opis:
    Black alder, an N-fixing tree is considered to accelerate the availability of phosphorus in soils due to the increased production of phosphatase enzymes, which are responsible for the P release from the litter. Acid phosphatase activity plays a pivotal role in organic P mineralization in forest soils and in making P available to plants. In order to check whether Alnus glutinosa stimulates acid phosphomonoesterase (PHACID) activity, we compared enzyme activities, total P concentration (PTOT), plant-available P (PAVAIL), organic P (PORG) and inorganic P (PINORG), and organic matter content in 27 ancient and 27 post-agricultural alder woods (the latter ones representing different age classes: 11-20, 21-40 and 41-60 years) of soil samples taken from the litter and the mineral layers. Phosphomonoesterase activity, organic matter, PTOT, PINORG and PORG concentrations were significantly higher in ancient alder woods than in the soils of post-agricultural forests. Significant differences in the acid phosphatase activity, organic matter and PAVAIL concentration were noted between the litter and mineral layers within the same forest type. In recent stands the amount of organic matter and phosphatase activity increased significantly with the age of alder stands, although only in the mineral layer of their soils. Phosphomonoesterase activity, organic matter and PAVAIL content were higher in a litter layer and decreased significantly at a mineral depth of the soil. The acid phosphatase activity was significantly correlated with organic matter content in both ancient and recent stands. There was no significant relationship between PHACID activity and any P forms.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2012, 81, 2
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effects of high concentrations of calcium salts in the substrate and its pH on the growth of selected rhododendron cultivars
    Autorzy:
    Giel, P.
    Bojarczuk, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/59116.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    high concentration
    calcium salt concentration
    calcium salt
    substrate
    pH
    plant growth
    rhododendron
    plant cultivar
    root development
    shoot development
    carbohydrate
    phenol
    acid phosphatase
    mineral
    non-specific dehydrogenase
    Opis:
    For proper growth and development, rhododendrons need acidic soils, whereas calcium carbonate (CaCO3) in the substrate markedly limits their growth. In this study, we analysed the reactions of rhododendrons to high concentrations of calcium salts and pH in the substrate. We used 4-month-old seedlings of Rhododendron ‘Cunningham’s White’ and 1.5-year-old seedlings and rooted cuttings of R. ‘Cunningham’s White’ and R. ‘Catawbiense Grandiflorum’. Their reactions depended mostly on calcium salt type added to the substrate (sulphate or carbonate). An increase in concentrations of phenolic compounds was detected mostly in roots of the plants grown in a substrate with a high calcium carbonate content. Addition of calcium salts to the substrate caused a significant rise in total nonstructural carbohydrates in leaves and roots of the studied plants. As compared to the control, an increase in substrate pH in the variant with calcium carbonate limited the activity of acid phosphatase, while lowering of substrate pH in the variant with calcium sulphate, significantly increased its activity. Along with the rise in substrate pH, a remarkable increase was observed in the activity of nonspecific dehydrogenase (DHA) in the substrate with CaCO3, as compared to the control. Unfavourable soil conditions (high calcium content and alkaline pH) caused a decrease in assimilation of minerals by the studied plants (mostly phosphorus and manganese). Our results show that the major factor limiting rhododendron growth is an increase in substrate pH, rather than an increase in the concentration of calcium ions.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2011, 80, 2
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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