Results 141 to 150 of about 3,260 (168)
Some of the next articles are maybe not open access.
Ion metabolism in a halophilic blue-green alga, Aphanothece halophytica
Archives of Microbiology, 1976The intracellular ion content of the halophilic blue-green alga, Aphanthece halophytica was studied as a function of age, external sodium and external potassium concentration. Intracellular Na+ was found to be about 0.38 millimoles/g dry mass. Intracellular K+ concentrations were as high as 1 M and varied directly with external salinity.
D M, Miller +4 more
openaire +2 more sources
CELL WALL CONSTITUENTS OF APHANOTHECE HALOPHYTICA (CYANOPHYTA)1
Journal of Phycology, 1979ABSTRACTSome aspects of the cell wall and extracellular polysaccharide (ECPS) of the obligate halophile Aphanothece halophytica Frémy (Chroococcales) have been investigated. Extracellular polysaccharide concentration was found to remain constant on a per cell basis in medium containing from 1–3 M NaCl.
Jay H. Jones, John H. Yopp
openaire +1 more source
Current Microbiology, 2001
Betaine-homocysteine methyl transferase (BHMT) from Aphanothece halophytica was purified to homogeneity by hydroxyapatite, DEAE-Sepharose CL-6B and Sephadex G-200 column chromatography. A 24-fold purification and 11% overall yield were achieved with a specific activity of 595 nmol h(-1) mg(-1).
R, Waditee, A, Incharoensakdi
openaire +2 more sources
Betaine-homocysteine methyl transferase (BHMT) from Aphanothece halophytica was purified to homogeneity by hydroxyapatite, DEAE-Sepharose CL-6B and Sephadex G-200 column chromatography. A 24-fold purification and 11% overall yield were achieved with a specific activity of 595 nmol h(-1) mg(-1).
R, Waditee, A, Incharoensakdi
openaire +2 more sources
Zinc Biosorption from Aqueous Solution by a Halotolerant Cyanobacterium Aphanothece halophytica
Current Microbiology, 2002We have investigated the characteristics of zinc biosorption by Aphanothece halophytica. Zinc could be rapidly taken up from aqueous solution by the cells with an equilibrium being reached within 15 min of incubation with 100 mg L(-1) ZnCl(2). The adsorbed zinc was desorbed by treatment with 10 mM EDTA.
Aran, Incharoensakdi, Pissopa, Kitjaharn
openaire +2 more sources
Journal of Applied Phycology, 2012
The effects of several physiological parameters on H2 production rate in the unicellular halotolerant cyanobacterium Aphanothece halophytica were investigated. Under nitrogen deprivation, the growth of cells was inhibited, but H2 production rate was enhanced approximately fourfold.
Samart Taikhao +3 more
openaire +1 more source
The effects of several physiological parameters on H2 production rate in the unicellular halotolerant cyanobacterium Aphanothece halophytica were investigated. Under nitrogen deprivation, the growth of cells was inhibited, but H2 production rate was enhanced approximately fourfold.
Samart Taikhao +3 more
openaire +1 more source
Archives of Biochemistry and Biophysics, 1984
Ribulose 1,5-bisphosphate carboxylase-oxygenase (RuBisCO) from the halophilic cyanobacterium, Aphanothece halophytica, dissociates into catalytic core (large subunit A oligomer) and small subunit B under low ionic strength during sucrose density gradient centrifugation.
T, Takabe, A K, Rai, T, Akazawa
openaire +2 more sources
Ribulose 1,5-bisphosphate carboxylase-oxygenase (RuBisCO) from the halophilic cyanobacterium, Aphanothece halophytica, dissociates into catalytic core (large subunit A oligomer) and small subunit B under low ionic strength during sucrose density gradient centrifugation.
T, Takabe, A K, Rai, T, Akazawa
openaire +2 more sources
Salt stress enhances choline uptake in the halotolerant cyanobacterium Aphanothece halophytica
Biochimica et Biophysica Acta (BBA) - General Subjects, 2003The uptake of [14C]choline by a suspension of exponential-phase Aphanothece halophytica under various conditions has been studied. Salt stress was found to enhance the uptake of choline. The kinetics of choline transport followed the Michaelis-Menten relationship with apparent K(m) values of 272 and 286 microM, maximum rates of transport (V(max)) of 18
Aran, Incharoensakdi +1 more
openaire +2 more sources
1989
ได้ทำการศึกษาอิทธิพลของเกลือโซเดียมคลอไรด์ในอาหารเลี้ยงเชื้อ ที่มีต่อการเปลี่ยนแปลงทางด้านเมตาบอลิสมของสาหร่ายสีเขียวแกมน้ำเงินสายพันธุ์ Aphanothece halophytica พบว่าที่ระยะ Late log phase เมื่อเพิ่มความเข้มข้นของเกลือโซเดียมคลอไรด์จากสภาวะปกติ 0.5 M เป็น 1 M และ 2 M เซลล์มีความสามารถในการตรึงคาร์บอนไดออกไซด์เพิ่มขึ้นตามลำดับ ในขณะเดียวกันเอนไซม์ที่สำคั
openaire +1 more source
ได้ทำการศึกษาอิทธิพลของเกลือโซเดียมคลอไรด์ในอาหารเลี้ยงเชื้อ ที่มีต่อการเปลี่ยนแปลงทางด้านเมตาบอลิสมของสาหร่ายสีเขียวแกมน้ำเงินสายพันธุ์ Aphanothece halophytica พบว่าที่ระยะ Late log phase เมื่อเพิ่มความเข้มข้นของเกลือโซเดียมคลอไรด์จากสภาวะปกติ 0.5 M เป็น 1 M และ 2 M เซลล์มีความสามารถในการตรึงคาร์บอนไดออกไซด์เพิ่มขึ้นตามลำดับ ในขณะเดียวกันเอนไซม์ที่สำคั
openaire +1 more source
The Cyanobacteria Genus Aphanothece: Bioactive Compounds and Applications in Biotechnology
Applied Biochemistry and BiotechnologyAphanothece is a genus of colonial cyanobacteria with a global distribution that is found in various aquatic and terrestrial environments. It has garnered interest because of its high content of amino acids, carbohydrates, fatty acids, and pigments, which possess bioactive and biotechnological properties.
Ronald Tarazona Delgado +2 more
openaire +2 more sources
Molecular Chaperon DnaK from A Halotolerant Cyanobacterium Aphanothece halopytica
1998The DnaK/Hsp70 family is a molecular chaperone that has been extensively studied for its ability to assist the refolding and reassembly of a large number of diverse proteins. These protein support in the protection and recovery of cells from the ill effects of stress.
T. Hibino +6 more
openaire +1 more source