- Mycorrhizal Fungi and Plant Interactions
- Legume Nitrogen Fixing Symbiosis
- Fungal Biology and Applications
- Plant Parasitism and Resistance
- Plant nutrient uptake and metabolism
- Plant-Microbe Interactions and Immunity
- Plant and animal studies
- Soil Carbon and Nitrogen Dynamics
- Forest Ecology and Biodiversity Studies
- Plant Pathogens and Fungal Diseases
- Ecology and Vegetation Dynamics Studies
- Arsenic contamination and mitigation
- Plant and Fungal Species Descriptions
- Plant Micronutrient Interactions and Effects
- Peatlands and Wetlands Ecology
- Nematode management and characterization studies
- Lichen and fungal ecology
- Iron oxide chemistry and applications
- Heavy metals in environment
- Cancer-related Molecular Pathways
- Clay minerals and soil interactions
- Agronomic Practices and Intercropping Systems
- Plant Stress Responses and Tolerance
- Plant and Biological Electrophysiology Studies
- Biocrusts and Microbial Ecology
Clemson University
2024
South Tees Hospitals NHS Foundation Trust
2024
Georgia Institute of Technology
2022
The University of Adelaide
2010-2019
University of South Australia
2019
Western Sydney University
2019
Australian Centre for Plant Functional Genomics
2019
Australian Plant Phenomics Network
2019
Technical University of Denmark
2011-2016
Wine Australia
2010
Arbuscular mycorrhizal (AM) fungi are vital components of nearly all terrestrial ecosystems, forming mutually beneficial (mutualistic) symbioses with the roots around 80% vascular plants and often increasing phosphate (P) uptake growth.We present novel data showing that AM can provide dominant route for plant P supply, even when overall growth or remains unaffected.The results will change our understanding roles in agricultural natural ecosystems; they also predict mycorrhiza-specific...
• We investigated structural and functional diversity in arbuscular mycorrhizal (AM) symbioses involving three plant species AM fungi measured contributions of the to P uptake using compartmented pots 33P. The plant/fungus combinations varied growth responses. Flax (Linum usitatissimum) responded positively all fungi, medic (Medicago truncatula) Glomus caledonium G. intraradices, but not Gigaspora rosea. Tomato (Lycopersicon esculentum) showed no positive Hyphal soil was very low for Gi....
Crop loss due to soil salinization is an increasing threat agriculture worldwide. This review provides overview of cellular and physiological mechanisms in plant responses salt. We place a time- tissue-dependent context ...Read More
• Arbuscular mycorrhizal fungal (AMF) communities were established in pots using isolates from a single field Switzerland. It was tested whether multispecies mixtures provided more phosphorus and supported greater plant growth than AMF species. Two host plants, medic (Medicago truncatula) leek (Allium porrum), inoculated with three species (Glomus mosseae, G. claroideum intraradices), either separately or mixtures. The composition of the roots assessed real-time PCR to determine copy number...
S ummary In this review we compare the structure and function of interfaces between symbionts in biotrophic associations. The emphasis is on fungal parasites mycorrhizas, although necrotrophic parasitic associations Rhizobium /legume symbiosis are mentioned briefly. We take as a starting point observations that nutrient transport polarized towards parasite, whereas mutualistic it bidirectional. then compared. An important common feature nearly all cases heterotrophic symbiont (whether or...
• A hydroponic experiment was conducted to investigate the effect of phosphorus (P) nutrition and iron plaque on root surfaces arsenate uptake by, translocation within, seedlings three cultivars rice (Oryza sativa). Supply 0.5 mg As l−1 had no significant effects dry weights shoots or roots, but resulted in elevated concentrations tissues, particularly roots. Rice roots appeared reddish after 24 h –P solution (without P), indicating formation plaque. Arsenic (determined...
The effects of Fe concentrations in the pretreatment solution on induction plaque and differences between genotypes arsenate uptake by translocation within rice seedlings grown nutrient greenhouse were investigated. After iron roots was induced solutions containing 20, 40, 60, 80, 100 mg Fe2+ l(-1), transplanted into with 0.5 As l(-1). formation clearly visible as a reddish coating root surface after 12 h induction. l(-1) treatment did not significantly affect growth. There significant...
Responses of Medicago truncatula to colonization by two arbuscular mycorrhizal fungi, Scutellospora calospora isolate WUM 12(2) and Glomus caledonium RIS 42, were compared in the light previous findings that former fungus can be ineffective as a beneficial microsymbiont with some host plants. The plants grown individually two‐compartment systems which lateral side arm containing soil labelled 33 P was separated from main compartment nylon mesh prevented penetration roots but not fungal...
Mycorrhizas are considered to be classic mutualisms. Here, we define mutualism as a reciprocal increase in fitness of the symbionts, and review evidence for mycorrhizal at community, whole-plant, cellular scales. It is difficult use results most studies because (i) fungal contribution nutrient uptake not accurately estimated, (ii) increased growth necessarily correlated with plant fecundity or survival, especially communities, (iii) benefits that occur only certain times year, under specific...
• The contribution of arbuscular mycorrhizas (AM) to plant community structure and diversity is reported here in an annual herbland southern Australia. Mycorrhizal colonization was reduced field plots by applying the fungicide benomyl as a soil drench. mycorrhiza-responsiveness species assessed intact cores containing indigenous AM fungi pot experiment using isolate Glomus mosseae. Glasshouse experiments showed that Medicago minima, Vittadinia gracilis Velleia arguta were highly...
• We used 32P to quantify the contribution of an arbuscular mycorrhizal (AM) fungus (Glomus intraradices) phosphorus (P) uptake by wheat (Triticum aestivum), grown in compartmented pots. The soil was from a major cereal-growing area, Eyre Peninsula, South Australia; it highly calcareous and P-fixing. Fertilizer P added at 20 mg kg−1, as solid or liquid. Two extraction methods were estimate plant-available P. Fungal colonization well established harvest (36 d). Application decreased both...