Wszystkie pola: brown alga - Katalog OPAC zbiorów

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Tytuł:: Study concerning the physical and chemical description of magnesium alginate obtained from the brown alga Cystoseira barbata
Autorzy:: Balaban, D P
Stanciu, G.
Belc, M.
Powiązania:: https://bibliotekanauki.pl/articles/13976.pdf
Data publikacji:: 2006
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:: magnesium alginate
brown alga
Cystoseira barbata
Black Sea
coastal area
alginate
magnesium chloride
certain metal
magnesium quantity
Opis:: The study examines the physical and chemical description of magnesium alginate obtained from the brown alga Cystoseira barbata, existing in the coastal area of the Black Sea. We have separated a magnesium alginate by a specific method, which involves the precipitation of the alginate with an alcohol solution of magnesium chloride. The study is focused on three directions: determining the concentration of certain metals, confirming the structure of the alginate type through IR spectral analysis and the examination of the ratio of fixation of magnesium on the alginate. Results confirmed the alginate type structure as well as the presence of certain metals, among which Fe, Cd, Mn, which are to be found in the alga. The presence of Mg is to be noticed, which was fixed on the alginate during the process of obtaining the alginates. The magnesium was fixed in the ratio approximately 80% from the added magnesium quantity in the phase of precipitation of the magnesium alginate.
Źródło:: Journal of Elementology; 2006, 11, 1
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Diversity and abundance of isopod fauna associated with holdfasts of the brown alga Himantothallus grandifolius in Admiralty Bay, Antarctic
Autorzy:: Zemko, Karol
Pabis, Krzysztof
Siciński, Jacek
Błażewicz-Paszkowycz, Magdalena
Powiązania:: https://bibliotekanauki.pl/articles/2047139.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Antarctic
Admiralty Bay
Isopoda
macroalgae
habitat complexity
Źródło:: Polish Polar Research; 2015, 4; 405-415
0138-0338
2081-8262
Pojawia się w:: Polish Polar Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Fibonacci spirals in a brown alga [Sargassum muticum (Yendo) Fensholt] and in a land plant [Arabidopsis thaliana (L.) Heynh.]: a case of morphogenetic convergence
Autorzy:: Peaucelle, A.
Couder, Y.
Powiązania:: https://bibliotekanauki.pl/articles/57850.pdf
Data publikacji:: 2016
Wydawca:: Polskie Towarzystwo Botaniczne
Opis:: In this article, the morphology of a brown alga is revisited and compared to the phyllotaxis of land plants. The alga, Sargassum muticum (Yendo) Fensholt has a highly organized thallus with a stipe, the stem-like main axis, and hierarchically organized lateral branches of successive orders. Around each of these axes, the lateral organs: blades, side-branches, and receptacles grow in a spiral disposition. As in land plants, this organization is related to an apical mode of growth. Measurements performed along the mature differentiated axes as well as in their meristematic regions confirm the similarity of the large-scale organization of this brown alga with that of the land plants. In particular, the divergence angle between successive elements has similar values and it results from the existence around the meristem of parastichies having the same Fibonacci ordering. This is remarkable in view of the fact that brown algae (Phaeophyceae) and land plants (Embryophyta) are two clades that diverged approximately 1800 million years ago when they were both unicellular organisms. We argue that the observed similarity results from a morphogenetic convergence. This is in strong support of the genericity and robustness of self-organization models in which similar structures, here Fibonacci related spirals, can be obtained in various situations in which the genetic and physiological implementation of development can be of a different nature.
Źródło:: Acta Societatis Botanicorum Poloniae; 2016, 85, 4
0001-6977
2083-9480
Pojawia się w:: Acta Societatis Botanicorum Poloniae
Dostawca treści:: Biblioteka Nauki