A5016259803- Legume Nitrogen Fixing Symbiosis
- Soybean genetics and cultivation
- Agronomic Practices and Intercropping Systems
- Plant nutrient uptake and metabolism
- Nematode management and characterization studies
- Plant tissue culture and regeneration
- Plant Molecular Biology Research
- Plant Disease Resistance and Genetics
- Plant Reproductive Biology
- Plant-Microbe Interactions and Immunity
- Chromosomal and Genetic Variations
- Agricultural pest management studies
- Molecular Biology Techniques and Applications
- Genetic and Environmental Crop Studies
- Wastewater Treatment and Nitrogen Removal
- Plant Parasitism and Resistance
- Mycorrhizal Fungi and Plant Interactions
- Cassava research and cyanide
- Plant responses to water stress
- Transgenic Plants and Applications
- Genomics and Phylogenetic Studies
- Biodiesel Production and Applications
- Plant Pathogens and Fungal Diseases
- Algal biology and biofuel production
- Genetic diversity and population structure
The University of Queensland
2016-2025
Agriculture and Food
2014-2025
Australian Research Council
2007-2013
Brisbane School of Theology
2013
National Institutes of Biotechnology Malaysia
2013
ARC Centre of Excellence for Integrative Brain Function
2004-2012
Australian Genome Research Facility
2010
Shanghai Institutes for Biological Sciences
2009
Chinese Academy of Sciences
2009
Center for Excellence in Molecular Plant Sciences
2009
Proliferation of legume nodule primordia is controlled by shoot-root signaling known as autoregulation nodulation (AON). Mutants defective in AON show supernodulation and increased numbers lateral roots. Here, we demonstrate that soybean the receptor-like protein kinase GmNARK ( Glycine max receptor kinase), similar to Arabidopsis CLAVATA1 (CLV1). Whereas CLV1 functions a complex controlling stem cell proliferation short-distance shoot apices, expression leaf has major role long-distance...
The nodulation characteristics of soybean (Glycine max) mutant nts382 are described. nodulated significantly more than the parent cultivar Bragg in presence and absence several combined nitrogen sources (KNO(3), urea, NH(4)Cl, NH(4)NO(3)). number nodules on tap root lateral roots was increased line. In KNO(3) nitrogenase activity considerably higher Bragg. Mutant plants were generally smaller wild-type plants. Although is a supernodulator, inoculation with Rhizobium japonicum necessary to...
Abstract Background Plants encode a large number of leucine-rich repeat receptor-like kinases. Legumes several LRR-RLK linked to the process root nodule formation, ligands which are unknown. To identify for these receptors, we used combination profile hidden Markov models and position-specific iterative BLAST, allowing us detect new members CLV3/ESR (CLE) protein family from publicly available sequence databases. Results We identified 114 CLE various plant species, as well five sequences...
Soybean seeds [ Glycine max (L.) Merr. ev. Bragg] were mutagenized with ethyl methanesulfonate. The M 2 progeny (i.e., the first generation after mutagenesis) of these screened for increased nodulation under high nitrate culture conditions. Fifteen independent nitrate-tolerant symbiotic ( nts ) mutants obtained from 2500 families. In on sand KNO 3 , nodule mass and number in mutant lines several-fold those wild type cultured same Inheritance character through to subsequent generations was...
Systemic autoregulation of nodulation in legumes involves a root-derived signal (Q) that is perceived by CLAVATA1-like leucine-rich repeat receptor kinase (e.g. GmNARK). Perception Q triggers the production shoot-derived inhibitor prevents further nodule development. We have identified three candidate CLE peptide-encoding genes (GmRIC1, GmRIC2, and GmNIC1) soybean (Glycine max) respond to Bradyrhizobium japonicum inoculation or nitrate treatment. Ectopic overexpression all peptide transgenic...
Despite the rhizotoxicity of aluminum (Al) being identified over 100 years ago, there is still no consensus regarding mechanisms whereby root elongation rate initially reduced in approximately 40% arable soils worldwide that are acidic. We used high-resolution kinematic analyses, molecular biology, rheology, and advanced imaging techniques to examine soybean (Glycine max) roots exposed Al. Using this multidisciplinary approach, we have conclusively shown primary lesion Al apoplastic. In...
Legume root nodules convert atmospheric nitrogen gas into ammonium through symbiosis with a prokaryotic microsymbiont broadly called rhizobia. Auxin signaling is required for determinant nodule development; however, the molecular mechanism of auxin-mediated formation remains largely unknown. Here, we show in soybean (Glycine max) that microRNA miR167 acts as positive regulator lateral organs, namely and roots. miR167c expression was up-regulated vasculature, pericycle, cortex roots following...
The availability of soybean mutants with altered symbiotic properties allowed an investigation the shoot or root control relevant phenotype. By means grafts between these and wild-type plants (cultivar Bragg Williams), we demonstrated that supernodulation as well hypernodulation (nitrate tolerance in nodulation lack autoregulation) is controlled two (nts382 nts1116) belonging most likely to separate complementation groups. phenotype was expressed on roots parent cultivar Williams. Likewise...
Legume plants carefully control the extent of nodulation in response to rhizobial infection. To examine mechanism underlying this process we conducted a detailed analysis Lotus japonicus hypernodulating mutants, har1-1, 2 and 3 that define new locus, HYPERNODULATION ABERRANT ROOT FORMATION (Har1), involved root symbiotic development. Mutations Har1 locus alter architecture by inhibiting elongation, diminishing diameter stimulating lateral initiation. At cellular level these developmental...