ArticleThe New phytologist2016
Bacteria-zinc co-localization implicates enhanced synthesis of cysteine-rich peptides in zinc detoxification when Brassica juncea is inoculated with Rhizobium leguminosarum.
Article in The New phytologist, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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12 citing papers in PubMed, 52 citations in OpenAlex.
- The effects of organic waste materials on Miscanthus × giganteus yield and Zn and Ni content.Scientific reports · 2024Article
- Isolation and identification of a new Bacillus glycinifermentans strain from date palm rhizosphere and its effect on barley seeds under heavy metal stress.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2024Article
- Study on diversity, nitrogen-fixing capacity, and heavy metal tolerance of culturableFrontiers in microbiology · 2023Article
- Signaling and Detoxification Strategies in Plant-Microbes Symbiosis under Heavy Metal Stress: A Mechanistic Understanding.Microorganisms · 2022Review
- Molecular and Physiological Mechanisms to Mitigate Abiotic Stress Conditions in Plants.Life (Basel, Switzerland) · 2022Review
- Role of ACC deaminase producing bacteria for abiotic stress management and sustainable agriculture production.Environmental science and pollution research international · 2022Review
- Bioinoculants-Natural Biological Resources for Sustainable Plant Production.Microorganisms · 2021Review
- Article
- Zinc incorporation in marine bivalve shells grown in mine-polluted seabed sediments: a case study in the Malfidano mining area (SW Sardinia, Italy).Environmental science and pollution research international · 2018Article
- Intestinal microbiome of broiler chickens after use of nanoparticles and metal salts.Environmental science and pollution research international · 2018Article
- Abiotic Stress Responses and Microbe-Mediated Mitigation in Plants: The Omics Strategies.Frontiers in plant science · 2017Review
- Screening and Evaluation of the Bioremediation Potential of Cu/Zn-Resistant, AutochthonousFrontiers in plant science · 2016Article
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Authors and funding
4 authors at 2 institutions in 1 country.
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Abstract
Some plant growth promoting bacteria (PGPB) are enigmatic in enhancing plant growth in the face of increased metal accumulation in plants. Since most PGPB colonize the plant root epidermis, we hypothesized that PGPB confer tolerance to metals through changes in speciation at the root epidermis. We employed a novel combination of fluorophore-based confocal laser scanning microscopic imaging and synchrotron based microscopic X-ray fluorescence mapping with X-ray absorption spectroscopy to characterize bacterial localization, zinc (Zn) distribution and speciation in the roots of Brassica juncea grown in Zn contaminated media (400 mg kg(-1) Zn) with the endophytic Pseudomonas brassicacearum and rhizospheric Rhizobium leguminosarum. PGPB enhanced epidermal Zn sequestration relative to PGBP-free controls while the extent of endophytic accumulation depended on the colonization mode of each PGBP. Increased root accumulation of Zn and increased tolerance to Zn was associated predominantly with R. leguminosarum and was likely due to the coordination of Zn with cysteine-rich peptides in the root endodermis, suggesting enhanced synthesis of phytochelatins or glutathione. Our mechanistic model of enhanced Zn accumulation and detoxification in plants inoculated with R. leguminosarum has particular relevance to PGPB enhanced phytoremediation of soils contaminated through mining and oxidation of sulphur-bearing Zn minerals or engineered nanomaterials such as ZnS.
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