Information report for VvPIP2
Gene Details
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Functional Descriptions
- The Grapevine Root-Specific Aquaporin **VvPIP2|4N **|**VvPIP2|4N **Controls Root Hydraulic Conductance and Leaf Gas Exchange under Well-Watered Conditions But Not under Water Stress.
- Expression of **VvPIP2|4N **|**VvPIP2|4N **in Xenopus laevis oocytes increased their swelling rate 54-fold. Northern blot and quantitative reverse transcription-polymerase chain reaction analyses showed that **VvPIP2|4N **|**VvPIP2|4N **is the most expressed PIP2 gene in root.
- We then constitutively overexpressed **VvPIP2|4N **|**VvPIP2|4N **in grape ‘Brachetto’, and in the resulting transgenic plants we analyzed (1) the expression of endogenous and transgenic **VvPIP2|4N **|**VvPIP2|4N **and of four other aquaporins, (2) whole-plant, root, and leaf ecophysiological parameters, and (3) leaf abscisic acid content. Expression of transgenic **VvPIP2|4N **|**VvPIP2|4N **inhibited neither the expression of the endogenous gene nor that of other PIP aquaporins in both root and leaf.
- The leaf component of total plant hydraulic resistance was low and unaffected by overexpression of **VvPIP2|4N **|4N. Upon water stress, the overexpression of **VvPIP2|4N **|**VvPIP2|4N **induced a surge in leaf abscisic acid content and a decrease in stomatal conductance and leaf gas exchange.
Functional Keywords
- leaf , root , resistance , stress , stomatal , abscisic-acid
Literature and News
Gene Resources
- NCBI ID: DQ358107.1
- UniProt accessions: Q2HZF5
Homologs
- Arabidopsis thaliana: AT1G01620, AT2G39010, AT3G16240, AT3G26520, AT2G25810, AT3G47440
- Cucumis sativus: CsNIP2
- Glycine max: GmPIP1
- Oryza sativa: OsPIP2;5, OsPIP2;2, OsPIP2;4, OsPIP2;3, OsPIP1;2, OsPIP2;1, RWC3;OsPIP1;3, OsPIP2;6, OsPIP2;7, OsPIP1;1;RWC1, OsTIP3;1, Lsi6, Lsi1;OsNIP2;1, OsNIP1;1, OsNIP3;1;DTE1, OsNIP3;3, OsNIP3;2
- Prunus persica: Prupe.3G009400.1.p
- Triticum aestivum: TaAQP8
Sequences
cDNA Sequence
- >Vitvi06g00281_t001
CTCACATCAAAGCTTTCTCTCTCTTGTGTAAAAGTTTGCCGAGACAGCGGTGGTAATCAATGACGAAAGACGTTGAAACCTCGGGACAAGAGTTTTCGAACAAGGACTACCATGATCCACCTCCGGCGCCGCTGATCGACCCAGATGAATTAACACAATGGTCCTTATACAGAGCCATCATCGCCGAGTTTATCGCCACCCTGCTTTTCCTCTACATCACTGTCCTAACAGTGATCGGATACAAGAGCCAGTCCGACACCGACCCATGCGGGGGCGTGGGCATCTTGGGTATCGCCTGGGCCTTCGGCGGAATGATCTTCATCCTAGTCTACTGCACCGCCGGCATCTCCGGAGGACACATAAACCCGGCGGTGACCTTTGGGCTGTTCTTGGCGAGGAAGGTGTCGCTGGTGAGGGCTCTCATGTACATGATAGCTCAGTGCCTGGGTGCAGTCTGCGGTGTGGGCTTGGTGAAGGCGTTTCAGTCTTCGCTCTACAATAGGTACGGTGGGGGAGCAAACGAGCTGGCTGGTGGCTACAACAAGGGCGTGGGATTGGGTGCTGAGATCATCGGCACCTTTGTTCTTGTCTACACCGTCTTCTCTGCCACTGACCCCAAGAGGAACGCCCGAGACTCCCATGTTCCTGTTTTGGCACCACTGCCCATCGGATTTGCGGTGTTCATGGTTCACCTGGCAACAATTCCCATCACCGGCACCGGTATCAACCCGGCTAGAAGCTTCGGAGCTGCTGTCATCTATAACAACGACAAGGCCTGGGATGACCATTGGATGTTCTGGGTCGGACCATTCATTGGAGCTGCCATTGCTGCATTCTACCACCAGTATATTCTGAGAGCAGCGGCCATTAAAGCTCTAGGATCTTTCAGGAGCAATGCCTAGGTTTTGGACGCTAGCTGGTGATGGTGATGGTGATGGTTTCTGCAACAAGAATAACATCAATGGTGGAGGAGTATTAGTACATGCAAATCGGTCTCAATCTCTTTCCAGTGTTTTTTCTCTTCTATCTGCCCCCTCTCTCTCCCTCTCTCCCTCTCTCCCTCCCTTGGAACCATGGAATTGTAGATAAATTTGGCTTTTATCTGGCCATGTCTCTTTAAATATATTTCAAGTGCTGTATGTTGTCATCTTTTTTCTTTTCCCTCCTCTCTCTCTCTCTTTCTACTTGGTGTATTCATAATGATGCTTCCACATTATTCTAGTAAATGGCTATGCTCCTCAATCTCCATCACCCC
CDS Sequence
- >Vitvi06g00281_t001
ATGACGAAAGACGTTGAAACCTCGGGACAAGAGTTTTCGAACAAGGACTACCATGATCCACCTCCGGCGCCGCTGATCGACCCAGATGAATTAACACAATGGTCCTTATACAGAGCCATCATCGCCGAGTTTATCGCCACCCTGCTTTTCCTCTACATCACTGTCCTAACAGTGATCGGATACAAGAGCCAGTCCGACACCGACCCATGCGGGGGCGTGGGCATCTTGGGTATCGCCTGGGCCTTCGGCGGAATGATCTTCATCCTAGTCTACTGCACCGCCGGCATCTCCGGAGGACACATAAACCCGGCGGTGACCTTTGGGCTGTTCTTGGCGAGGAAGGTGTCGCTGGTGAGGGCTCTCATGTACATGATAGCTCAGTGCCTGGGTGCAGTCTGCGGTGTGGGCTTGGTGAAGGCGTTTCAGTCTTCGCTCTACAATAGGTACGGTGGGGGAGCAAACGAGCTGGCTGGTGGCTACAACAAGGGCGTGGGATTGGGTGCTGAGATCATCGGCACCTTTGTTCTTGTCTACACCGTCTTCTCTGCCACTGACCCCAAGAGGAACGCCCGAGACTCCCATGTTCCTGTTTTGGCACCACTGCCCATCGGATTTGCGGTGTTCATGGTTCACCTGGCAACAATTCCCATCACCGGCACCGGTATCAACCCGGCTAGAAGCTTCGGAGCTGCTGTCATCTATAACAACGACAAGGCCTGGGATGACCATTGGATGTTCTGGGTCGGACCATTCATTGGAGCTGCCATTGCTGCATTCTACCACCAGTATATTCTGAGAGCAGCGGCCATTAAAGCTCTAGGATCTTTCAGGAGCAATGCCTAG
Protein Sequence
- >Vitvi06g00281_P001
MTKDVETSGQEFSNKDYHDPPPAPLIDPDELTQWSLYRAIIAEFIATLLFLYITVLTVIGYKSQSDTDPCGGVGILGIAWAFGGMIFILVYCTAGISGGHINPAVTFGLFLARKVSLVRALMYMIAQCLGAVCGVGLVKAFQSSLYNRYGGGANELAGGYNKGVGLGAEIIGTFVLVYTVFSATDPKRNARDSHVPVLAPLPIGFAVFMVHLATIPITGTGINPARSFGAAVIYNNDKAWDDHWMFWVGPFIGAAIAAFYHQYILRAAAIKALGSFRSNA