ID | 49036 |
FullText URL | |
Author |
Sasano, Sizuka
Utsugi, Sigeko
Kaken ID
researchmap
Katsuhara, Maki
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Abstract | Water homeostasis is crucial to the growth and survival of plants. Plasma membrane intrinsic proteins (PIPs) have been shown to be primary channels mediating water uptake in plant cells. We characterized a novel PIP2 gene, HvPIP2;8 in barley (Hordeum vulgare). HvPIP2;8 shared 72–76% identity with other HvPIP2s and 74% identity with rice OsPIP2;8. The gene was expressed in all organs including the shoots, roots and pistil at a similar level. When HvPIP2;8 was transiently expressed in onion epidermal cells, it was localized to the plasma membrane. HvPIP2;8 showed transport activity for water in Xenopus oocytes, however its interaction with HvPIP1;2 was not observed. These results suggest that HvPIP2;8 plays a role in water homeostasis although further functional analysis is required in future.
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Keywords | aquaporin
plasma membrane intrinsic protein
PIP
HvPIP2;8
water transport
barley
Hordeum vulgare
Xenopus laevis oocytes
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Published Date | 2012-12
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Publication Title |
Plant Signaling & Behavior
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Volume | volume7
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Issue | issue12
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Start Page | 1842
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End Page | 1846
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ISSN | 1559-2316
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Content Type |
Journal Article
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Official Url | http://dx.doi.org/10.4161/psb.22294
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language |
English
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Copyright Holders | © 2012 Landes Bioscience
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File Version | author
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Refereed |
True
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DOI | |
PubMed ID |