Results 111 to 120 of about 702 (146)

Salt stress enhances choline uptake in the halotolerant cyanobacterium Aphanothece halophytica

Biochimica et Biophysica Acta (BBA) - General Subjects, 2003
The 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, Aphichart, Karnchanatat   +1 more
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Plasma membrane lipid composition of the halophilic cyanobacterium Aphanothece halophytica

Archives of Microbiology, 1993
The plasma membrane from Aphanothece halophytica was isolated using both glycerol and sucrose gradient centrifugation. The isolated membrane was characterized for lipid content by TLC and isolated lipids were quantified by chemical analysis. The plasma membrane of A. halophytica was composed of MGDG, DGDG and PG.
Darryl Ritter, John H. Yopp
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Enhanced dark fermentative H2 production by agar-immobilized cyanobacterium Aphanothece halophytica

Journal of Applied Phycology, 2019
Cell immobilization is one of the techniques used to improve H2 productivity in cyanobacteria. In this study, H2 production by immobilized cells of unicellular halotolerant cyanobacterium Aphanothece halophytica was investigated and optimized. The results showed that immobilized cells of A.
Sunisa Pansook, Aran Incharoensakdi, Saranya Phunpruch   +2 more
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Na+/H+ exchange activity in the alkaliphile halotolerant cyanobacterium Aphanothece halophytica

Journal of Applied Phycology, 2009
The activity of Na+/H+ exchanger to remove toxic Na+ is important for growth of organisms under high salinity. In this study, the halotolerant cyanobacterium Aphanothece halophytica was shown to possess Na+/H+ exchange activity since exogenously added Na+ could dissipate a pre-formed pH gradient, and decrease extracellular pH.
Aporn Bualuang, Kanteera Soontharapirakkul, Aran Incharoensakdi   +2 more
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Regulation of Glycinebetaine Accumulation in the Halotolerant Cyanobacterium Aphanothece halophytica

Australian Journal of Plant Physiology, 1993
When cells of the halotolerant cyanobacterium, Aphanothece halophytica were transferred from control culture medium that contained 0.5 M NaCl to a hypersaline medium with either 1.5 M or 2.0 M NaCl, the rate of photosynthetic CO2 fixation fell instantaneously. Subsequently, the photosynthetic activity returned to almost the original level within 1 day.
M Ishitani, T Takabe, K Kojima, T Takabe
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Bifunctional alanine dehydrogenase from the halotolerant cyanobacterium Aphanothece halophytica: characterization and molecular properties

Archives of Microbiology, 2018
A link between carbon and nitrogen metabolism is important for serving as metabolic ancillary reactions. Here, we identified and characterized the alanine dehydrogenase gene in Aphanothece halophytica (ApalaDH) that is involved in alanine assimilation/dissimilation. Functional analysis revealed that ApalaDH encodes a bifunctional protein catalyzing the
Sittipol Phogosee, Takashi Hibino, Hakuto Kageyama, Rungaroon Waditee-Sirisattha   +3 more
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Chemical characterisation of the released polysaccharide from the cyanobacterium Aphanothece halophytica GR02

Journal of Applied Phycology, 2001
The released polysaccharide from the halophilic cyanobacterium Aphanothece halophytica GR02 was separated into two main fractions byanion-exchange chromatography. The major fraction consisted of glucose,fucose, mannose, arabinose and glucuronic acid. Judging from thechromatography on Sepharose 2B, the major fraction was not furtherfractionated, and its
Pengfu Li, Zhili Liu, Ren Xu
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Purification and Characterization of Nitrate Reductase from the Halotolerant Cyanobacterium Aphanothece halophytica

World Journal of Microbiology and Biotechnology, 2006
Factors affecting the activity of nitrate reductase (E.C.1.7.7.2) from the halotolerant cyanobacterium Aphanothece halophytica were investigated. Cells grown in nitrate-containing medium exhibited higher nitrate reductase activity than cells grown in medium in which nitrate was replaced by glutamine.
Soraya Thaivanich, Aran Incharoensakdi
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การเปลี่ยนแปลงด้านเมตาบอลิสมในสาหร่ายสีเขียวแกมน้ำเงิน สายพันธุ์ Aphanothece halophytica ที่เจริญภายใต้ความเครียดของเกลือ : รายงานผลการวิจัย

1989
ได้ทำการศึกษาอิทธิพลของเกลือโซเดียมคลอไรด์ในอาหารเลี้ยงเชื้อ ที่มีต่อการเปลี่ยนแปลงทางด้านเมตาบอลิสมของสาหร่ายสีเขียวแกมน้ำเงินสายพันธุ์ Aphanothece halophytica พบว่าที่ระยะ Late log phase เมื่อเพิ่มความเข้มข้นของเกลือโซเดียมคลอไรด์จากสภาวะปกติ 0.5 M เป็น 1 M และ 2 M เซลล์มีความสามารถในการตรึงคาร์บอนไดออกไซด์เพิ่มขึ้นตามลำดับ ในขณะเดียวกันเอนไซม์ที่สำคั
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Isolation and characterization of a dnaK genomic locus in a halotolerant cyanobacterium Aphanothece halophytica

Plant Molecular Biology, 1997
We cloned and characterized a genomic locus encoding a distinct member of the DnaK/Hsp70 family of molecular chaperones, dnaK1, from the halotolerant cyanobacterium Aphanothece halophytica. Co-expression of dnaK1 with a plant plastocyanin precursor in Escherichia coli resulted in a dramatic increase in the solubility of the plant protein.
B H, Lee, T, Hibino, J, Jo, A M, Viale, T, Takabe   +4 more
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