ArticlePlant physiology1996
Primary structure and effect of pH on the expression of the plasma membrane H(+)-ATPase from Dunaliella acidophila and Dunaliella salina.
Article in Plant physiology, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
5 citing papers in PubMed, 33 citations in OpenAlex.
- Interaction Network Construction and Functional Analysis of the Plasma Membrane HInternational journal of molecular sciences · 2023Article
- Cloning and Characterization of Two Putative P-Type ATPases from the Marine MicroalgaPlants (Basel, Switzerland) · 2021Article
- Net ammonium and nitrate fluxes in wheat roots under different environmental conditions as assessed by scanning ion-selective electrode technique.Scientific reports · 2014Article
- Sodium, potassium-atpases in algae and oomycetes.Journal of bioenergetics and biomembranes · 2005Article
- Adaptation of active proton pumping and plasmalemma ATPase activity of corn roots to low root medium pHPlant physiology · 1998Article
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The plasma membrane H(+)-ATPase gene was cloned and sequenced from the extremely acidophilic green alga Dunaliella acidophila and from the extremely halotolerant Dunaliella salina. A special feature of the Dunaliella H(+)-ATPase is an extended C-terminal domain. The deduced amino acid sequences of the two proteins are 75% identical but differ in their C terminus. A hydrophilic loop within this domain in D. salina, which presumably faces the cell exterior, has a high ratio of acidic over basic amino acids, typical of halophilic proteins. The amount of the ATPase protein in plasma membranes and the level of its mRNA transcript in D. acidophila are far higher than in D. salina, suggesting that D. acidophila overexpresses the enzyme. A pH shift from 9.0 to 7.0 induces in D. salina a large increase in the level of the H(+)-ATPase mRNA and in the amount of the H(+)-ATPase protein. This suggests that the expression of the H(+)-ATPase in D. salina is pH-regulated at the transcriptional level. The implications of these findings are discussed with respect to the adaptive pressures imposed on these algal species by their exceptional environmental conditions.
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