منابع مشابه
Exogenous melatonin affects photosynthesis in characeae Chara australis
Melatonin was found in the fresh water characeae Chara australis. The concentrations (~4 μg/g of tissue) were similar in photosynthesizing cells, independent of their position on the plant and rhizoids (roots) without chloroplasts. Exogenous melatonin, added at 10 μM to the artificial pond water, increased quantum yield of photochemistry of photosystem II by 34%. The increased efficiency appear...
متن کاملClathrin in Chara australis: Molecular Analysis and Involvement in Charasome Degradation and Constitutive Endocytosis
Charasomes are convoluted plasma membrane domains in characean green algae. They are known to form in response to light via secretion of trans-Golgi network (TGN) vesicles and local inhibition of endocytosis. Charasomes are involved in the acidification of their aqueous environment, thereby facilitating photosynthesis-dependent carbon uptake. Charasome formation is reversible to allow cells to ...
متن کاملMetabolomics of a single vacuole reveals metabolic dynamism in an alga Chara australis.
Metabolomics is the most reliable analytical method for understanding metabolic diversity in single organelles derived from single cells. Although metabolites such as phosphate compounds are believed to be localized in different organelles in a highly specific manner, the process of metabolite compartmentalization in the cell is not thoroughly understood. The analysis of metabolites in single o...
متن کاملDivalent cation block and competition between divalent and monovalent cations in the large-conductance K+ channel from Chara australis
The patch-clamp technique is used to investigate divalent ion block of the large-conductance K+ channel from Chara australis. Block by Ba2+, Ca2+, Mg2+, and Pt(NH3)4(2+) from the vacuolar and cytoplasmic sides is used to probe the structure of, and ion interactions within, the pore. Five divalent ion binding sites are detected. Vacuolar Ca2+ reduces channel conductance by binding to a site loca...
متن کاملEffects of Lithium Chloride on In Vitro Proliferation Rate of Rat Marrow- Derived Mesenchymal Stem Cells
Purpose: To evaluate the effects of lithium chloride on MSCs in vitro expansion rate. Materials and Methods: In this experimental study, bone marrow from 8 rats was plated at 5×105- cells/cm2 in the presence of 1,2,5,7 and 10 mM Lithium chloride and expanded through 3 passages. Twelve days after initiatial culture, the cells of different groups were stained with crystal violet in order to compa...
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ژورنال
عنوان ژورنال: Australian Journal of Biological Sciences
سال: 1966
ISSN: 0004-9417
DOI: 10.1071/bi9660545