Temat: cytochemistry - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The ultrastructure and cytochemistry of Mehlis gland and egg-shell formation in Schistosoma haematobium
Autorzy:: Swiderski, Z.
Moczon, T.
Eklu-Natey, D.T.
Powiązania:: https://bibliotekanauki.pl/articles/836300.pdf
Data publikacji:: 1998
Wydawca:: Polskie Towarzystwo Parazytologiczne
Tematy:: parasite
Schistosoma haematobium
Mehlis' gland
cytochemistry
egg shell formation
ultrastructure
Źródło:: Annals of Parasitology; 1998, 44, 3
0043-5163
Pojawia się w:: Annals of Parasitology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Proliferation of peroxisomes in pea root nodules - an influence of NaCl- or Hg2plus-stress conditions
Autorzy:: Borucki, W
Powiązania:: https://bibliotekanauki.pl/articles/58800.pdf
Data publikacji:: 2007
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: proliferation
peroxisome
pea
root nodule
sodium chloride
stress condition
Pisum sativum
cytochemistry
catalase activity
morphometry
salinity
mercury treatment
Opis:: Morphometric procedures were used to examine peroxisome number and di-stribution in pea (Pisum sativum L.) root nodules under NaCl (50 mM) or HgCl2 (7.3 µM) treatment. Peroxisomes were visualized cytochemically in meristem, invasion zone and prefixing zone of pea root nodules by catalase (EC 1.11.1.6) activity. The observations using light and electron microscopy revealed that the peroxisomes were predominantly spherical in shape and showed catalase activity. In nitrogen fixation zone, catalase active peroxisomes were observed occasionally. Bacteroids of nitrogen fixing zone showed enhanced cata-lase activity probably as a response to higher level of oxidative stress. Fluorescence microscopy investigations revealed enhanced level of (homo)glutathione in prefixing and nitrogen-fixing zone of NaCl- and Hg2+treated nodules, which served as an indicator of antioxidative response. Morphometric measurements revealed that during differentiation of meristematic cells into central tissue (bacteroidal tissue) cells an increase in peroxisome number was observed in unstressed nodules. Peroxisomes located in meristem, invasion zone and prefixing zone of NaCl- and Hg2+-treated nodules outnumbered that in control nodules. A substantial enlargement of peroxisome profiles was detected in NaCl- and Hg2+treated nodules. Peroxisome divisions observed in meristematic and infection thread penetration zone were responsible for an increase in peroxisome number.
Źródło:: Acta Societatis Botanicorum Poloniae; 2007, 76, 4; 287-298
0001-6977
2083-9480
Pojawia się w:: Acta Societatis Botanicorum Poloniae
Dostawca treści:: Biblioteka Nauki

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