ArticleAnnals of botany2007
A wheat (Triticum aestivum) protein phosphatase 2A catalytic subunit gene provides enhanced drought tolerance in tobacco.
Article in Annals of botany, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.
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Who cites it
31 citing papers in PubMed, 1 synthesis or guideline pooled it, 77 citations in OpenAlex.
- Salt tolerance involved candidate genes in rice: an integrative meta-analysis approach.BMC plant biology · 2020Pooled it
- A current view on the involvement of protein phosphatase PP2A subunits in the responses of plants to abiotic stress at the subcellular level.Plant cell reports · 2026Review
- GWAS-informed genomic selection for cold tolerance in pepper (Capsicum annuum L.).BMC plant biology · 2026Article
- Physiological and transcriptomic evaluation of salt tolerance in Egyptian tomato landraces at the seedling stage.BMC plant biology · 2025Article
- Walnut phosphatase 2A proteins interact with basic leucine zipper protein JrVIP1 to regulate osmotic stress responseForestry research · 2024Article
- Article
- The protein phosphatase 2A catalytic subunit StPP2Ac2b enhances susceptibility to Phytophthora infestans and senescence in potato.PloS one · 2022Article
- Physiological and transcriptome analyses for assessing the effects of exogenous uniconazole on drought tolerance in hemp (Cannabis sativa L.).Scientific reports · 2021Article
- Genome-wide characterization and expression analysis of TOPP-type protein phosphatases in soybean (Glycine max L.) reveal the role of GmTOPP13 in drought tolerance.Genes & genomics · 2021Article
- Conserved and Unique Roles of Chaperone-Dependent E3 Ubiquitin Ligase CHIP in Plants.Frontiers in plant science · 2021Review
- Genome-wide association mapping for adult resistance to powdery mildew in common wheat.Molecular biology reports · 2020Article
- PP2A Phosphatases Take a Giant Leap in the Post-Genomics Era.Current genomics · 2019Review
- Characterization ofPhysiology and molecular biology of plants : an international journal of functional plant biology · 2018Article
- The protein phosphatase 2A catalytic subunit StPP2Ac2b acts as a positive regulator of tuberization induction in Solanum tuberosum L.Plant molecular biology · 2017Article
- Article
- Phosphatase ABI1 and okadaic acid-sensitive phosphoprotein phosphatases inhibit salt stress-activated SnRK2.4 kinase.BMC plant biology · 2016Article
- PP2A Phosphatase as a Regulator of ROS Signaling in Plants.Antioxidants (Basel, Switzerland) · 2016Review
- Physiological performance, secondary metabolite and expression profiling of genes associated with drought tolerance in Withania somnifera.Protoplasma · 2015Article
- Comparative study of the protein profiles of Sunki mandarin and Rangpur lime plants in response to water deficit.BMC plant biology · 2015Article
- Article
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimsMultiple copies of genes encoding the catalytic subunit (c) of protein phosphatase 2A (PP2A) are commonly found in plants. For some of these genes, expression is up-regulated under water stress. The aim of this study was to investigate expression and characterization of TaPP2Ac-1 from Triticum aestivum, and to evaluate the effects of TaPP2Ac-1 on Nicotiana benthamiana in response to water stress.
methodsTaPP2Ac-1 cDNA was isolated from wheat by in silico identification and RT-PCR amplification. Transcript levels of TaPP2Ac-1 were examined in wheat responding to water deficit. Copy numbers of TaPP2Ac-1 in wheat genomes and subcellular localization in onion epidermal cells were studied. Enzyme properties of the recombinant TaPP2Ac-1 protein were determined. In addition, studies were carried out in tobacco plants with pCAPE2-TaPP2Ac-1 under water-deficit conditions. KEY
resultsTaPP2Ac-1 cDNA was cloned from wheat. Transcript levels of TaPP2Ac-1 in wheat seedlings were up-regulated under drought condition. One copy for this TaPP2Ac-1 was present in each of the three wheat genomes. TaPP2Ac-1 fused with GFP was located in the nucleus and cytoplasm of onion epidermis cells. The recombinant TaPP2Ac-1 gene was over-expressed in Escherichia coli and encoded a functional serine/threonine phosphatase. Transgenic tobacco plants over-expressing TaPP2Ac-1 exhibited stronger drought tolerance than non-transgenic tobacco plants.
conclusionsTobacco plants with pCAPE2-TaPP2Ac-1 appeared to be resistant to water deficit, as shown by their higher capacity to maintain leaf relative water content, leaf cell-membrane stability index, water-retention ability and water use efficiency under water stress. The results suggest that the physiological role of TaPP2Ac-1 is related to drought stress response, possibly through its involvement in drought-responding signal transduction pathways.
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