ArticleJournal of experimental botany2015
PtrABF of Poncirus trifoliata functions in dehydration tolerance by reducing stomatal density and maintaining reactive oxygen species homeostasis.
Article in Journal of experimental botany, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.
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Who cites it
24 citing papers in PubMed, 76 citations in OpenAlex.
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- Comparative Transcriptome Analysis Unravels Defense Pathways ofFrontiers in plant science · 2022Article
- The NF-Y-PYR module integrates the abscisic acid signal pathway to regulate plant stress tolerance.Plant biotechnology journal · 2021Article
- PtrMYB3, a R2R3-MYB Transcription Factor fromAntioxidants (Basel, Switzerland) · 2021Article
- Developmentally controlled changes during Arabidopsis leaf development indicate causes for loss of stress tolerance with age.Journal of experimental botany · 2020Article
- Characterization ofInternational journal of molecular sciences · 2020Article
- The unknown soldier in citrus plants: polyamines-based defensive mechanisms against biotic and abiotic stresses and their relationship with other stress-associated metabolites.Plant signaling & behavior · 2020Article
- Citrus Polyamines: Structure, Biosynthesis, and Physiological Functions.Plants (Basel, Switzerland) · 2020Review
- Comparative transcriptome analysis reveals synergistic and disparate defense pathways in the leaves and roots of trifoliate orange (Horticulture research · 2020Article
- The Interplay among Polyamines and Nitrogen in Plant Stress Responses.Plants (Basel, Switzerland) · 2019Review
- Enhanced ROS scavenging and sugar accumulation contribute to drought tolerance of naturally occurring autotetraploids in Poncirus trifoliata.Plant biotechnology journal · 2019Article
- Physiological and anatomical responses of a common beach grass to crude oil pollution.Environmental science and pollution research international · 2018Article
- Expression of the Arabidopsis ABF4 gene in potato increases tuber yield, improves tuber quality and enhances salt and drought tolerance.Plant molecular biology · 2018Article
- Transcription Factors and Their Roles in Signal Transduction in Plants under Abiotic Stresses.Current genomics · 2017Review
- PbrMYB21, a novel MYB protein of Pyrus betulaefolia, functions in drought tolerance and modulates polyamine levels by regulating arginine decarboxylase gene.Plant biotechnology journal · 2017Article
- Emerging roles for ROS and RNS - versatile molecules in plants.Journal of experimental botany · 2017Article
- A NAC Transcription Factor Represses Putrescine Biosynthesis and Affects Drought Tolerance.Plant physiology · 2016Article
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Abscisic acid-responsive element (ABRE)-binding factors (ABFs) play important roles in abiotic stress responses; however, the underlying mechanisms are poorly understood. In this study, it is reported that overexpression of Poncirus trifoliata PtrABF significantly enhanced dehydration tolerance. The transgenic lines displayed smaller stomatal apertures, reduced stomatal density/index, and lower expression levels of genes associated with stomatal development. PtrABF was found to interact with PtrICE1, a homologue of ICE1 (Inducer of CBF Expression 1) that has been shown to be critical for stomatal development. Microarray analysis revealed that a total of 70 genes were differentially expressed in the transgenic line, 42 induced and 28 repressed. At least two units of ABREs and coupling elements were present in the promoters of most of the induced genes, among which peroxidase and arginine decarboxylase were verified as bona fide targets of PtrABF. Transgenic plants exhibited higher antioxidant enzyme activities and free polyamine levels, but lower levels of reactive oxygen species (ROS) and malondialdehyde. Polyamines were revealed to be associated with ROS scavenging in the transgenic plants due to a modulation of antioxidant enzymes triggered by signalling mediated by H2O2 derived from polyamine oxidase (PAO)-mediated catabolism. Taken together, the results indicate that PtrABF functions positively in dehydration tolerance by limiting water loss through its influence on stomatal movement or formation and maintaining ROS homeostasis via modulation of antioxidant enzymes and polyamines through transcriptional regulation of relevant target genes.
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