ArticleJournal of experimental botany2015
ß-amylase1 mutant Arabidopsis plants show improved drought tolerance due to reduced starch breakdown in guard cells.
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 35 papers.
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Who cites it
35 citing papers in PubMed, 101 citations in OpenAlex.
- Physiological and Transcriptomic Dissection of Inflorescence Degeneration inPlants (Basel, Switzerland) · 2026Article
- Overexpression ofPlants (Basel, Switzerland) · 2026Article
- Root-enriched β-amylase GmBAM-like 1 enhances drought and salt tolerance in Arabidopsis.Genetics and molecular biology · 2026Article
- INTACT-based guard cell transcriptomes from a progressive drought time course reveal targets for modifying stomatal responses.The Plant cell · 2025Article
- Metabolic engineering of stomatal precursor cells enhances photosynthetic water-use efficiency and vegetative growth under water-deficit conditions in Arabidopsis thaliana.Plant biotechnology journal · 2025Article
- Hierarchical Regulatory Networks Reveal Conserved Drivers of Plant Drought Response at the Cell-Type Level.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Sucrose synthase dynamics and its potential role in heat stress tolerance in cereals.Frontiers in plant science · 2025Review
- Article
- Comprehensive Identification of the β-Amylase (BAM) Gene Family in Response to Cold Stress in White Clover.Plants (Basel, Switzerland) · 2024Article
- Genome-wide characterization and expression analysis of α-amylase and β-amylase genes underlying drought tolerance in cassava.BMC genomics · 2023Article
- Transcription factors ABF4 and ABR1 synergistically regulate amylase-mediated starch catabolism in drought tolerance.Plant physiology · 2023Article
- Tonoplast Sucrose Trafficking Modulates Starch Utilization and Water Deficit Behavior in Poplar Leaves.Plant & cell physiology · 2022Article
- BETA-AMYLASE9 is a plastidial nonenzymatic regulator of leaf starch degradation.Plant physiology · 2022Article
- A Seaweed Extract-Based Biostimulant Mitigates Drought Stress in Sugarcane.Frontiers in plant science · 2022Article
- Genome-wide identification of BAM genes in grapevine (Vitis vinifera L.) and ectopic expression of VvBAM1 modulating soluble sugar levels to improve low-temperature tolerance in tomato.BMC plant biology · 2021Article
- Target of Rapamycin Signaling in Plant Stress Responses.Plant physiology · 2020Review
- Article
- Physiological andFrontiers in plant science · 2020Article
- Drought-responsive genes, late embryogenesis abundant group3 (LEA3) and vicinal oxygen chelate, function in lipid accumulation in Brassica napus and Arabidopsis mainly via enhancing photosynthetic efficiency and reducing ROS.Plant biotechnology journal · 2019Article
- Elucidating Drought Stress Tolerance in European Oaks Through Cross-Species Transcriptomics.G3 (Bethesda, Md.) · 2019Article
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In plants, drought stress is a major growth limiting factor causing cell water loss through open stomata. In this study, guard cell-specific transcripts from drought-stressed Arabidopsis plants were analysed and a down-regulation of β-amylase 1 (BAM1) was found. In previous studies, BAM1 was shown to be involved in stomatal starch degradation under ambient conditions. Impaired starch breakdown of bam1 mutant plants was accompanied by decreased stomatal opening. Here, it is shown that drought tolerance of bam1 mutant plants is improved as compared with wild-type controls. Microarray analysis of stomata-specific transcripts from bam1 mutant plants revealed a significant down-regulation of genes encoding aquaporins, auxin- and ethylene-responsive factors, and cell-wall modifying enzymes. This expression pattern suggests that reduced water uptake and limited cell wall extension are associated with the closed state of stomata of bam1 mutant plants. Together these data suggest that regulation of stomata-specific starch turnover is important for adapting stomata opening to environmental needs and its breeding manipulation may result in drought tolerant crop plants.
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