ArticlePlant physiology2005
The mycorrhizal fungus Gigaspora margarita possesses a CuZn superoxide dismutase that is up-regulated during symbiosis with legume hosts.
Article in Plant physiology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.
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Who cites it
42 citing papers in PubMed, 150 citations in OpenAlex.
- Fungal highways to water: Mechanisms of drought tolerance in arbuscular and ectomycorrhizal symbioses.Mycorrhiza · 2026Review
- Arbuscular Mycorrhizal Fungal Community Shifts Driven by Heavy Metals in Cocoa Agroecosystems at Different Crop Age.Mycobiology · 2026Article
- Nitric oxide and AMF-mediated regulation of soil enzymes activities, cysteine-HBiometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2024Article
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- The Complex Interplay between Arbuscular Mycorrhizal Fungi and Strigolactone: Mechanisms, Sinergies, Applications and Future Directions.International journal of molecular sciences · 2023Review
- Mechanistic assessment of tolerance to iron deficiency mediated by Trichoderma harzianum in soybean roots.Journal of applied microbiology · 2022Article
- Comparative Physiological and Transcriptome Analysis Provide Insights into the Response ofJournal of fungi (Basel, Switzerland) · 2022Article
- Arbuscular mycorrhizal fungi contribute to reactive oxygen species homeostasis ofFrontiers in microbiology · 2022Article
- EndophyticFrontiers in plant science · 2022Article
- Genome-Wide Analysis of Nutrient Signaling Pathways Conserved in Arbuscular Mycorrhizal Fungi.Microorganisms · 2021Article
- VAPYRIN attenuates defence by repressing PR gene induction and localized lignin accumulation during arbuscular mycorrhizal symbiosis of Petunia hybrida.The New phytologist · 2021Article
- The bZIP Transcription Factor LtAP1 Modulates Oxidative Stress Tolerance and Virulence in the Peach Gummosis FungusFrontiers in microbiology · 2021Article
- A self-balancing circuit centered on MoOsm1 kinase governs adaptive responses to host-derived ROS ineLife · 2020Article
- Horizontal Gene Transfer From Bacteria and Plants to the Arbuscular Mycorrhizal FungusFrontiers in plant science · 2018Article
- Gigaspora margarita with and without its endobacterium shows adaptive responses to oxidative stress.Mycorrhiza · 2017Article
- An in vivo whole-plant experimental system for the analysis of gene expression in extraradical mycorrhizal mycelium.Mycorrhiza · 2017Article
- Article
- Effects ofFrontiers in plant science · 2017Article
- Stressed out symbiotes: hypotheses for the influence of abiotic stress on arbuscular mycorrhizal fungi.Oecologia · 2016Article
- A comparative review towards potential of microbial cells for heavy metal removal with emphasis on biosorption and bioaccumulation.World journal of microbiology & biotechnology · 2016Review
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A full-length cDNA showing high similarity to previously described CuZn superoxide dismutases (SODs) was identified in an expressed sequence tag collection from germinated spores of the arbuscular mycorrhizal fungus Gigaspora margarita (BEG 34). The corresponding gene sequence, named GmarCuZnSOD, is composed of four exons. As revealed by heterologous complementation assays in a yeast mutant, GmarCuZnSOD encodes a functional polypeptide able to confer increased tolerance to oxidative stress. The GmarCuZnSOD RNA was differentially expressed during the fungal life cycle; highest transcript levels were found in fungal structures inside the roots as observed on two host plants, Lotus japonicus and Medicago truncatula. These structures also reacted positively to 3,3'-diaminobenzidine, used to localize H2O2 accumulation. This H2O2 is likely to be produced by CuZnSOD activity since treatment with a chelator of copper ions, generally used to inhibit CuZnSODs, strongly reduced the 3,3'-diaminobenzidine deposits. A slight induction of GmarCuZnSOD gene expression was also observed in germinated spores exposed to L. japonicus root exudates, although the response showed variation in independent samples. These results provide evidence of the occurrence, in an arbuscular mycorrhizal fungus, of a functional SOD gene that is modulated during the life cycle and may offer protection as a reactive oxygen species-inactivating system against localized host defense responses raised in arbuscule-containing cells.
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