ArticleBMC plant biology2022
Poly-γ-glutamic acid enhanced the drought resistance of maize by improving photosynthesis and affecting the rhizosphere microbial community.
Article in BMC plant biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.
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Who cites it
33 citing papers in PubMed, 59 citations in OpenAlex.
- The Rhizosphere Microbiome: A Key Mediator of Crop Responses to Fertilization Strategies.Plants (Basel, Switzerland) · 2026Review
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- Differential morpho-physiological traits and hormone signal transduction pathway of Kentucky bluegrass cultivars in response to drought stress.BMC plant biology · 2026Article
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- Decoding polyamine-ethylene dynamics: synergies at synthesis and signalling levels during osmotic stress and ripening.Frontiers in plant science · 2026Review
- Long-term straw incorporation improves nutrient accumulation in wheat seedlings by changing the soil's hydrothermal environment to promote root growth.BMC plant biology · 2025Article
- Decades' progress and prospects on maize functional genomics and molecular breeding.Science China. Life sciences · 2025Review
- Plant growth-promoting rhizobacteria Halomonas alkaliantarcticae M23 promotes the salt tolerance of maize by increasing the KBMC plant biology · 2025Article
- Unveiling the molecular mechanisms of γ-polyglutamic acid-mediated drought tolerance in cotton through transcriptomic and physiological analyses.BMC plant biology · 2025Article
- Chemical application improves stress resilience in plants.Plant molecular biology · 2025Review
- Phenotypic Physiological and Metabolomic Analyses Reveal Crucial Metabolic Pathways in Quinoa (International journal of molecular sciences · 2025Article
- Mitigating Water Stress in Plants with Beneficial Bacteria: Effects on Growth and Rhizosphere Bacterial Communities.International journal of molecular sciences · 2025Article
- Effects of a novel fulvic acid-enriched water-soluble fertilizer on potato growth, yield, and water-fertilizer use efficiency under different drip irrigation regimes.Frontiers in plant science · 2025Article
- Nanoengineered polyglutamic acid fertilizers via self-assembly for efficient tomato growth.Frontiers in plant science · 2025Article
- Comprehensive Transcriptomic and Physiological Insights into the Response of Root Growth Dynamics During the Germination of Diverse Sesame Varieties to Heat Stress.Current issues in molecular biology · 2024Article
- The Marine-Origin Exopolysaccharide-Producing BacteriaMicroorganisms · 2024Article
- Article
- Enhancement of Apple Stress Resistance via Proline Elevation by Sugar Substitutes.International journal of molecular sciences · 2024Article
- Exogenous Substances Used to Relieve Plants from Drought Stress and Their Associated Underlying Mechanisms.International journal of molecular sciences · 2024Review
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundCompared with other abiotic stresses, drought stress causes serious crop yield reductions. Poly-γ-glutamic acid (γ-PGA), as an environmentally friendly biomacromolecule, plays an important role in plant growth and regulation.
resultsIn this project, the effect of exogenous application of γ-PGA on drought tolerance of maize (Zea mays. L) and its mechanism were studied. Drought dramatically inhibited the growth and development of maize, but the exogenous application of γ-PGA significantly increased the dry weight of maize, the contents of ABA, soluble sugar, proline, and chlorophyll, and the photosynthetic rate under severe drought stress. RNA-seq data showed that γ-PGA may enhance drought resistance in maize by affecting the expression of ABA biosynthesis, signal transduction, and photosynthesis-related genes and other stress-responsive genes, which was also confirmed by RT-PCR and promoter motif analysis. In addition, diversity and structure analysis of the rhizosphere soil bacterial community demonstrated that γ-PGA enriched plant growth promoting bacteria such as Actinobacteria, Chloroflexi, Firmicutes, Alphaproteobacteria and Deltaproteobacteria. Moreover, γ-PGA significantly improved root development, urease activity and the ABA contents of maize rhizospheric soil under drought stress. This study emphasized the possibility of using γ-PGA to improve crop drought resistance and the soil environment under drought conditions and revealed its preliminary mechanism.
conclusionsExogenous application of poly-γ-glutamic acid could significantly enhance the drought resistance of maize by improving photosynthesis, and root development and affecting the rhizosphere microbial community.
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