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The Nicotiana tabacum plasma membrane aquaporin NtAQP1 is mercury‐insensitive and permeable for glycerol
Abstract
Summary: A new aquaporin from Nicotiana tabacum (cv. Samsun) was characterized. It shares sequence homology to the Arabidopsis thaliana PIP1 protein family. By two‐phase partitioning and immunoblot analysis, plasma membrane localization could be demonstrated. The corresponding mRNA is highly abundant in roots and flowers, while it is rarely expressed in leaves and stems. Functional expression in Xenopus oocytes revealed that NtAQP1 can mediate glycerol transport in addition to water flow. However, NtAQP1 is impermeable for Na + , K + and Cl – ions. The water permeability and selectivity could not be modulated by addition of mercurials or the activity of cAMP‐dependent protein kinases.
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Cited by
Maurel, C., Boursiac, Y., Luu, D.-T., Santoni, V., Shahzad, Z., & Verdoucq, L. (2015) · Physiological Reviews · doi:10.1152/physrev.00008.2015 · Cited by 940
Plasma Membrane Aquaporins Play a Significant Role during Recovery from Water Deficit
Martre, P., Morillon, R., Barrieu, F., North, G. B., Nobel, P. S., & Chrispeels, M. J. (2002) · Plant Physiology · doi:10.1104/pp.009019 · Cited by 386
Zelazny, E., Borst, J. W., Muylaert, M., Batoko, H., Hemminga, M. A., & Chaumont, F. (2007) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0701180104 · Cited by 323
Role of aquaporins in leaf physiology
Heinen, R. B., Ye, Q., & Chaumont, F. (2009) · Journal of Experimental Botany · doi:10.1093/jxb/erp171 · Cited by 304
Plasma Membrane Aquaporins in the Motor Cells of Samanea saman: Diurnal and Circadian Regulation
Moshelion, M., Becker, D., Biela, A., Uehlein, N., Hedrich, R., Otto, B., Levi, H., Moran, N., & Kaldenhoff, R. (2002) · The Plant Cell · doi:10.1105/tpc.010351 · Cited by 221
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Metadata
- Authors
- Biela, A., Grote, K., Otto, B., Hoth, S., Hedrich, R., & Kaldenhoff, R.
- Venue
- The Plant Journal
- Publisher
- Wiley
- Published
- 1999-06
- Volume
- 18
- Issue
- 5
- Pages
- 565-570
- ISSN
- 0960-7412 (ISSN-L)
- 1365-313X
- OpenAlex
- W1971533507
- Cited by
- 231
- References
- 0
- FWCI
- 3.70
- Type
- journal article
- Language
- en
- Open access
- closed
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- Biela, A., Grote, K., Otto, B., Hoth, S., Hedrich, R., & Kaldenhoff, R. (1999). The Nicotiana tabacum plasma membrane aquaporin NtAQP1 is mercury‐insensitive and permeable for glycerol. The Plant Journal. https://doi.org/10.1046/j.1365-313x.1999.00474.x
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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