ArticleJournal of experimental botany2016
Increased abscisic acid levels in transgenic maize overexpressing AtLOS5 mediated root ion fluxes and leaf water status under salt stress.
Article in Journal of experimental botany, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.
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27 citing papers in PubMed, 81 citations in OpenAlex.
- Decades' progress and prospects on maize functional genomics and molecular breeding.Science China. Life sciences · 2025Review
- Integrated Transcriptomic and Metabolomic Profiling Identifies Candidate Genes and Pathways Associated With Pedicel Abscission Susceptibility inFood science & nutrition · 2025Article
- Genetic insights into the synergistic effects of nano-iron on yield, quality, and antioxidant defense in barley under salt stress.Molecular genetics and genomics : MGG · 2025Article
- Article
- A teosinte-derived allele of ZmSC improves salt tolerance in maize.Frontiers in plant science · 2024Article
- Research Progress on the Mechanism of Salt Tolerance in Maize: A Classic Field That Needs New Efforts.Plants (Basel, Switzerland) · 2023Review
- Article
- The miR166d/International journal of molecular sciences · 2023Article
- Proteomic Analysis of Roots Response to Potassium Deficiency and the Effect of TaHAK1-4A on KInternational journal of molecular sciences · 2022Article
- Climate change regulated abiotic stress mechanisms in plants: a comprehensive review.Plant cell reports · 2022Review
- The root apoplastic pH as an integrator of plant signaling.Frontiers in plant science · 2022Review
- Glycine betaine increases salt tolerance in maize (Frontiers in plant science · 2022Article
- Comparative transcriptome and metabolome analysis reveal key regulatory defense networks and genes involved in enhanced salt tolerance ofHorticulture research · 2022Article
- An ABA Functional Analogue B2 Enhanced Salt Tolerance by Inducing the Root Elongation and Reducing Peroxidation Damage in Maize Seedlings.International journal of molecular sciences · 2021Article
- Review
- Exogenous 2-(3,4-Dichlorophenoxy) triethylamine alleviates salinity stress in maize by enhancing photosynthetic capacity, improving water status and maintaining KBMC plant biology · 2020Article
- Introducing selective agrochemical manipulation of gibberellin metabolism into a cereal crop.Nature plants · 2020Article
- Natural variation of an EF-hand CaNature communications · 2020Article
- Copalyl Diphosphate Synthase Mutation Improved Salt Tolerance in Maize (Frontiers in plant science · 2020Article
- CALMODULIN-BINDING TRANSCRIPTION ACTIVATOR 6: A Key Regulator of NaPlant physiology · 2019Article
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9 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Abscisic acid (ABA) is a vital cellular signal in plants, and effective ABA signalling is pivotal for stress tolerance. AtLOS5 encoding molybdenum cofactor sulphurase is a key regulator of ABA biosynthesis. Here, transgenic AtLOS5 plants were generated to explore the role of AtLOS5 in salt tolerance in maize. AtLOS5 overexpression significantly up-regulated the expression of ZmVp14-2, ZmAO, and ZmMOCO, and increased aldehyde oxidase activities, which enhanced ABA accumulation in transgenic plants under salt stress. Concurrently, AtLOS5 overexpression induced the expression of ZmNHX1, ZmCBL4, and ZmCIPK16, and enhanced the root net Na(+) efflux and H(+) influx, but decreased net K(+) efflux, which maintained a high cytosolic K(+)/Na(+) ratio in transgenic plants under salt stress. However, amiloride or sodium orthovanadate could significantly elevate K(+) effluxes and decrease Na(+) efflux and H(+) influx in salt-treated transgenic roots, but the K(+) effluxes were inhibited by TEA, suggesting that ion fluxes regulated by AtLOS5 overexpression were possibly due to activation of Na(+)/H(+) antiport and K(+) channels across the plasma membrane. Moreover, AtLOS5 overexpression could up-regulate the transcripts of ZmPIP1:1, ZmPIP1:5, and ZmPIP2:4, and enhance root hydraulic conductivity. Thus transgenic plants had higher leaf water potential and turgor, which was correlated with greater biomass accumulation under salt stress. Thus AtLOS5 overexpression induced the expression of ABA biosynthetic genes to promote ABA accumulation, which activated ion transporter and PIP aquaporin gene expression to regulate root ion fluxes and water uptake, thus maintaining high cytosolic K(+) and Na(+) homeostasis and better water status in maize exposed to salt stress.
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