Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "chlorophyll c" wg kryterium: Temat

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-5 z 5
    Tytuł:
    Distributions of photosynthetic and photoprotecting pigment concentrations in the water column in the Baltic Sea: an improved mathematical description
    Autorzy:
    Ston-Egiert, J.
    Majchrowski, R.
    Ostrowska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/48084.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    phytoplankton
    primary production
    chlorophyll b
    chlorophyll c
    carotenoid
    pigment concentration
    photoprotection
    water column
    Baltic Sea
    mathematical description
    Źródło:
    Oceanologia; 2019, 61, 1
    0078-3234
    Pojawia się w:
    Oceanologia
    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:
    The determination of total protein, total soluble carbohydrate and pigment contents of some macroalgae collected from Gemlik-Karacaali (Bursa) and Erdek-Ormanli (Balikesir) in the Sea of Marmara, Turkey
    Autorzy:
    Dere, S.
    Dalkiran, N.
    Karacaoglu, D.
    Yildiz, G.
    Dere, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/47690.pdf
    Data publikacji:
    2003
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    pigment
    seaweed
    Phaeophyta
    chlorophyll b
    Marmara Sea
    Turkey
    carotenoid
    Chlorophyta
    soluble carbohydrate
    macroalga
    chlorophyll c
    Rhodophyta
    chlorophyll a
    Gemlik-Karacaali
    protein
    Erdek-Ormanli
    Opis:
    In this study, 12 taxa from the Chlorophyta, Phaeophyta and Rhodophyta were collected from different depths at Gemlik-Karacaali and Erdek-Ormanlı. A total of 175 specimens from these divisions were used to determine Total Protein (TP), Total Soluble Carbohydrate (TSCH) and Chlorophyll a (Chl a), Chlorophyll b (Chl b), Chlorophyll c (Chl c), total carotenoid (Car) contents and Chl b/Chl a, Chl c/Chl a, Car/Chl a, Car/Chl b, Car/Chl c ratios. TP, TSCH and pigment contents varied significantly with respect to the algal taxa, stations and depth distribution. In addition, individual differences were important in all of the measured parameters. The maximum TP contents (0.94%–31.03%) were determined in some of the Rhodophyta. In some green seaweeds belonging to the genus Ulva L., the TP content was determined between 2.9%–28.1%. Lower TP contents were determined in Cystoseira barbata (Good) C. Agardh (1.1%–4.3%). In contrast to TP contents, TSCH values were very low; maximum TSCH were determined in Ulva species, as were protein contents. In conclusion, the variations in TP, TSCH and pigment in 12 taxa of macroalgae were analysed according to station, depth, and environment.
    Źródło:
    Oceanologia; 2003, 45, 3
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Leaf Greenness Index SPAD and Selected Features of Potato Following an Application of Herbicides and Biostimulants
    Autorzy:
    Zarzecka, Krystyna
    Gugała, Marek
    Mystkowska, Iwona
    Sikorska, Anna
    Powiązania:
    https://bibliotekanauki.pl/articles/1955524.pdf
    Data publikacji:
    2021
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    chlorophyll
    Solanum tuberosum L.
    vitamin C
    yield of tubers
    Opis:
    The objective of the research was to determine the effect of herbicides and herbicides combined with biostimulants on the leaf greenness index SPAD and selected potato characteristics, i.e. plant height, yield of large tubers and the vitamin C content. A three-year experiment was conducted to examine the following factors: factor I – three potato cultivars: Bartek, Gawin, Honorata; factor II – five methods of an application of herbicides and biostimulants: 1. control unit without chemical control, 2. the Harrier 295 ZC herbicide (linuron + clomazone), 3. the Harrier 295 ZC herbicide (linuron + clomazone) and the Kelpak SL biostimulant (Ecklonia maxima), 4. the Sencor 70 WG herbicide (metribuzin), 5. the Sencor 70 WG herbicide (metribuzin) and the Asahi SL biostimulant (sodium para-nitrophenol, sodium ortho-nitrophenol, sodium 5-nitroguaiacol). The cultivars investigated in the experiment significantly affected the leaf greenness index SPAD, plant height, yield of large tubers and the vitamin C content. The herbicides and biostimulants enhanced the values of the examined potato characteristics. Linear correlation coefficients confirm a strong, significant, positive correlation between the SPAD index and plant height, yield of large tubers and vitamin C content.
    Źródło:
    Journal of Ecological Engineering; 2021, 22, 8; 54-63
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparative evaluation of the nutritional value and the content of bioactive compounds in the fruit of individual species of chaenomeles and quince
    Autorzy:
    Ponder, Alicja
    Hallmann, Ewelina
    Powiązania:
    https://bibliotekanauki.pl/articles/1178431.pdf
    Data publikacji:
    2017
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    bioactive compounds
    carotenoids
    chaenomeles
    chlorophyll
    dry matter
    nutritional value
    polyphenols
    quince
    vitamin C
    Opis:
    The objective of this study was to evaluate the nutritional value and the content of bioactive compounds in the fruit of individual species of chaenomeles and quince. The experimental material were the fruits of four species of chaenomeles (Chaenomeles×superba, Chaenomeles japonica apple-shape, Chaenomeles japonica pear-shape and Chaenomeles ssp.) and quince (Cydonia oblonga). The fruit were analyzed for dry matter, vitamin C, polyphenols, carotenoids and chlorophyll content. The obtained results showed that the species has an impact on the nutritional value and the content of bioactive compounds in the chaenomeles and quince fruits. The highest content of dry matter, total polyphenols, total phenolic acids as well as more total and individual phenolic acids (caffeic and p-coumaric acid) were found in quince fruits (Cydonia oblonga). Quince fruits Cydonia oblonga also contained the highest content of total flavonoids and individual flavonoids: quercetin-3-O-rutinoside, myrycetin and quercetin. The highest content of lutein and zeaxanthin was observed in fruits of Chaenomeles ×superba but Cydonia oblonga fruits contained significantly more beta-carotene and chlorophyll, both the total chlorophylls and individual chlorophylls: chlorophyll a and chlorophyll b. In contrast, the highest content of vitamin C was found in fruits Chaenomeles Japanese pear-shape.
    Źródło:
    World Scientific News; 2017, 73; 100-107
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies