A5064087992- Plant Micronutrient Interactions and Effects
- Wheat and Barley Genetics and Pathology
- Linguistics and Discourse Analysis
- Genetics and Plant Breeding
- Phytase and its Applications
- Genetic Mapping and Diversity in Plants and Animals
- Crop Yield and Soil Fertility
- Cassava research and cyanide
- French Language Learning Methods
- Plant Stress Responses and Tolerance
- Natural Language Processing Techniques
- Plant Disease Resistance and Genetics
- Plant pathogens and resistance mechanisms
- Political and Social Issues
- Iron Metabolism and Disorders
- Plant responses to water stress
- linguistics and terminology studies
- Aluminum toxicity and tolerance in plants and animals
- African Studies and Ethnography
- Birth, Development, and Health
- Genetic and Environmental Crop Studies
- Horticultural and Viticultural Research
- Genetic diversity and population structure
- Atherosclerosis and Cardiovascular Diseases
- Mathematical Dynamics and Fractals
The University of Adelaide
2017-2021
The University of Melbourne
2014-2021
Australian Centre for Plant Functional Genomics
2014-2017
Institut d'Histoire Moderne et Contemporaine
2013
Génétique, Diversité, Écophysiologie des Céréales
2012
Bread wheat (Triticum aestivum L.) is cultivated on more land than any other crop and produces a fifth of the calories consumed by humans. Wheat endosperm rich in starch yet contains low concentrations dietary iron (Fe) zinc (Zn). Biofortification micronutrient intervention aimed at increasing density bioavailability essential vitamins minerals staple crops; Fe biofortification has proved challenging. In this study we employed constitutive expression (CE) rice (Oryza sativa nicotianamine...
Summary Nicotianamine ( NA ) is a non‐protein amino acid involved in fundamental aspects of metal uptake, transport and homeostasis all plants constitutes the biosynthetic precursor mugineic family phytosiderophores MA s) graminaceous plant species. synthase NAS genes, which encode enzymes that synthesize from S‐adenosyl‐L‐methionine SAM ), are differentially regulated by iron (Fe) status most species genomes have been found to contain anywhere 1 9 genes. This study describes identification...
Yield is subject to strong genotype-by-environment (G × E) interactions in the field, especially under abiotic constraints such as soil water deficit (drought [D]) and high temperature (heat [H]). Since environmental conditions show fluctuations during whole crop cycle, geneticists usually do not consider measures quantitative variables but rather factors multienvironment analyses. Based on 11 experiments a field platform with contrasting deficit, we determined periods of sensitivity drought...
Iron (Fe) uptake in graminaceous plant species occurs via the release and of Fe-chelating compounds known as mugineic acid family phytosiderophores (MAs). In MAs biosynthetic pathway, nicotianamine aminotransferase (NAAT) deoxymugineic synthase (DMAS) enzymes catalyse formation 2'-deoxymugineic (DMA) from (NA). Here we describe identification characterisation six TaNAAT three TaDMAS1 genes bread wheat (Triticum aestivum L.). The coding sequences all homeologs consist seven exons with ≥88.0%...
Iron deficiency currently affects over two billion people worldwide despite significant advances in technology and society aimed at mitigating this global health problem. Biofortification of food staples with iron (Fe) represents a sustainable approach for alleviating human Fe developing countries, however, biofortification efforts have focused extensively on cereal while pulses been largely overlooked. In study we describe genetic engineering (GE) to biofortify the pulse crop, chickpea...
Biofortification of rice (Oryza sativa L.) with micronutrients is widely recognized as a sustainable strategy to alleviate human iron (Fe) and zinc (Zn) deficiencies in developing countries where the staple food. Constitutive overexpression nicotianamine synthase (OsNAS) genes has been successfully implemented increase Fe Zn concentrations unpolished polished grain. Intensive research now needed couple this high-micronutrient trait high grain yields. We investigated associations increased...
Abstract Wheat flour iron (Fe) fortification is mandatory in 75 countries worldwide yet many Fe fortificants, such as Fe-ethylenediaminetetraacetate (EDTA), result unwanted sensory properties and/or gastrointestinal dysfunction and dysbiosis. Nicotianamine (NA) a natural chelator of Fe, zinc (Zn) other metals higher plants NA-chelated highly bioavailable vitro . In graminaceous NA serves the biosynthetic precursor to 2′ -deoxymugineic acid (DMA), related enhancer bioavailability, increased...
Ascorbate (vitamin C) is an essential multifunctional molecule for both plants and mammals. In plants, ascorbate the most abundant water-soluble antioxidant that supports stress tolerance. humans, micronutrient promotes iron (Fe) absorption in gut. Engineering crops with increased levels have potential to improve crop tolerance human health. Here, rice ( Oryza sativa L.) were engineered constitutively overexpress GDP-L-galactose phosphorylase coding sequence (35S- OsGGP ), which encodes...
Wheat (Triticum aestivum L.) productivity is severely reduced by high temperatures. Breeding of heat-tolerant cultivars can be achieved identifying genes controlling physiological and agronomical traits when temperatures occur using these to select superior genotypes, but no gene underlying genetic variation for heat tolerance has previously been described. We advanced the positional cloning qYDH.3BL, a quantitative trait locus (QTL) on bread wheat chromosome 3B associated with increased...
Abstract Background Ascorbate is a powerful antioxidant in plants and an essential micronutrient for humans. The GDP-L-galactose phosphorylase ( GGP ) gene encodes the rate-limiting enzyme of L-galactose pathway—the dominant ascorbate biosynthetic pathway plants—and promising candidate increasing crops. In addition to transcriptional regulation, production regulated at translational level through upstream open reading frame (uORF) long 5′-untranslated region (5’UTR). genes have yet be...
Conventional breeding efforts for iron (Fe) and zinc (Zn) biofortification of bread wheat (Triticum aestivum L.) have been hindered by a lack genetic variation these traits negative correlation between grain Fe Zn concentrations yield. We employed engineering to constitutively express (CE) the rice (Oryza sativa) nicotianamine synthase 2 (OsNAS2) gene upregulate biosynthesis two metal chelators - (NA) 2'-deoxymugineic acid (DMA) in wheat, resulting increased wholemeal white flour. Here we...
Abstract Wheat productivity is severely reduced by high temperatures. Breeding of heat tolerant cultivars can be achieved identifying genes controlling physiological and agronomical traits with temperature using these to select superior genotypes, but no gene underlying genetic variation for tolerance has previously been described. We completed the positional cloning qYDH.3BL , a quantitative trait locus (QTL) on bread wheat chromosome 3B associated increased yield in hot dry climates. The...