A5048501034- Plant nutrient uptake and metabolism
- Legume Nitrogen Fixing Symbiosis
- Plant Stress Responses and Tolerance
- Genomics and Phylogenetic Studies
- Plant responses to water stress
- Horticultural and Viticultural Research
- Plant Micronutrient Interactions and Effects
- Plant Molecular Biology Research
- Plant-Microbe Interactions and Immunity
- Photosynthetic Processes and Mechanisms
- Fermentation and Sensory Analysis
- Nematode management and characterization studies
- Plant and animal studies
- Silicon Effects in Agriculture
- Plant Parasitism and Resistance
- Agronomic Practices and Intercropping Systems
- Cassava research and cyanide
- Biochemical and biochemical processes
- Plant pathogens and resistance mechanisms
- Plant Pathogenic Bacteria Studies
- Botanical Research and Applications
- Soybean genetics and cultivation
- Nitrogen and Sulfur Effects on Brassica
- Plant biochemistry and biosynthesis
- Agriculture Sustainability and Environmental Impact
King Abdullah University of Science and Technology
2020-2024
University of Newcastle Australia
2024
The University of Melbourne
2018-2020
Agriculture and Food
2018-2020
The University of Adelaide
2006-2019
Australian Centre for Plant Functional Genomics
2015
Murdoch University
2009-2013
Lawrence Berkeley National Laboratory
2013
Flinders University
2009-2011
The growth and development of plants can be limited by environmental stresses such as salinity. It has been suggested that the non-phosphorylating alternative respiratory pathway in plants, mediated NAD(P)H dehydrogenase [NAD(P)H DH] oxidase (AOX), is important during stresses. involvement this a stress response may linked to its capacity uncouple carbon metabolism from adenylate control and/or minimization formation destructive reactive oxygen species (ROS). Salinity widespread, adverse...
Abstract Background Fresh fruits are well accepted as a good source of the dietary antioxidant ascorbic acid (Asc, Vitamin C). However, such grapes do not accumulate exceptionally high quantities Asc. Grapes, unlike most other cultivated however use Asc precursor for synthesis both oxalic (OA) and tartaric acids (TA). TA is commercially important product in wine industry due to its acidifying effect on crushed juice it can influence organoleptic properties wine. Despite interest accumulation...
This paper outlines a numerical scheme for accurate, detailed, and high-throughput image analysis of plant roots. In contrast to existing root tools that focus on system-average traits, novel, fully automated robust approach the detailed characterization based graph optimization process is presented. The scheme, firstly, distinguishes primary roots from lateral and, secondly, quantifies broad spectrum traits each identified root. Thirdly, it associates their properties with specific which...
Abstract The identification of genes involved in salinity tolerance has primarily focused on model plants and crops. However, naturally adapted to highly saline environments offer valuable insights into extreme salinity. Salicornia grow coastal salt marshes, stimulated by NaCl. To understand this tolerance, we generated genome sequences two species analyzed the transcriptomic proteomic responses bigelovii Subcellular membrane proteomes reveal that SbiSOS1, a homolog well-known...
Enhancing nitrogen use efficiency (NUE) of wheat is a major focus for breeding programs. NUE may be improved by identifying genotypes that are competitive (N) uptake in early vegetative stages growth and able to invest N grain. Breeders tend select high yielding under conditions medium supply, but it not known whether this influences the selection root plasticity traits or whether, over time, breeders have selected with higher efficiency. To address this, were from CIMMYT (1966-1985)...
Degradation of nitrogen-rich purines is tightly and oppositely regulated under drought low nitrogen supply in bread wheat. Allantoin a key target metabolite for improving homeostasis stress. The allantoin an intermediate the catabolism (components nucleotides) known its housekeeping role (N) recycling also function N transport storage nodulated legumes. was shown to differentially accumulate upon abiotic stress range plant species but little about cereals. To address this, purine catabolic...
Rhizobium leguminosarum bv trifolii is a soil-inhabiting bacterium that has the capacity to be an effective nitrogen fixing microsymbiont of diverse range annual Trifolium (clover) species. Strain WSM1325 aerobic, motile, non-spore forming, Gram-negative rod isolated from root nodules collected in 1993 Greek Island Serifos. produced commercially Australia as inoculant for broad clovers Mediterranean origin due its superior attributes saprophytic competence, fixation and acid-tolerance. Here...
Rhizobium leguminosarum bv trifolii is the effective nitrogen fixing microsymbiont of a diverse range annual and perennial Trifolium (clover) species. Strain WSM2304 an aerobic, motile, non-spore forming, Gram-negative rod, isolated from polymorphum in Uruguay 1998. This predominated grasslands Glencoe Research Station, Uruguay, to competitively nodulate its host, fix atmospheric nitrogen. Here we describe basic features WSM2304, together with complete genome sequence, annotation. first...
The branched respiratory electron transport chain of plants contains a non-phosphorylating alternative pathway consisting type II NAD(P)H dehydrogenases on both sides the inner membrane linked through ubiquinone pool to an oxidase (AOX). T-DNA and RNA interference (RNAi) were used reduce gene expression characterize external dehydrogenase NDB4 in Arabidopsis. ndb4 lines showed different levels suppression protein, leading increases NBD2 AOX1a mRNA protein all lines. These changes associated...
Abstract The rice Zaxinone Synthase (ZAS) gene encodes a carotenoid cleavage dioxygenase (CCD) that forms the apocarotenoid growth regulator zaxinone in vitro. Here, we generated and characterized constitutive ZAS ‐overexpressing lines, to better understand role determining content regulating architecture. overexpression enhanced endogenous level, promoted root increased number of productive tillers, leading about 30% higher grain yield per plant. Hormone analysis revealed decrease...
BACKGROUND: The accumulation of L-ascorbate (Asc) in fruits is influenced by environmental factors including light quantity. Fruit exposure to ambient often reduced the surrounding leaf canopy, and can be altered cultivation practices. influence sunlight on Asc its catabolites was investigated field-grown berries cultivated grapevine Vitis vinifera L. cv. Shiraz. RESULTS: Growth under sunlight-eliminated conditions resulted berry fresh weight, chlorosis a total pool size. concentration...
Legumes overcome nitrogen limitations by entering into a mutualistic symbiosis with N2-fixing bacteria (rhizobia). Fully compatible associations (effective) between Trifolium spp. and Rhizobium leguminosarum bv. trifolii result from successful recognition of symbiotic partners in the rhizosphere, root hair infection formation nodules where bacteroids reside. Poorly can nodule minimal (sub-optimal) or no (ineffective) N2-fixation. Despite abundance persistence strains agricultural soils which...
Turn-over of RNA and catabolism nucleotides releases one to four ammonia molecules; the released nutrients being reassimilated into primary metabolism. Preliminary evidence indicates that monocots store high levels free nucleosides but their potential as a source internal organic nitrogen for use remobilisation is uncharted. Early tillering wheat plants were therefore starved N over five-day time-course with examination nucleic acid yields in whole shoots, young old leaves roots. Nucleic...
Background and Aims: The majority of the acidity a grapevine (Vitis vinifera L.) berry is result accumulation l-tartaric (TA) l-malic acids (MA). TA synthesised from l-ascorbic acid (Asc, vitamin C), metabolism which poorly characterised in grapevines. In distinct pathway, oxalic (OA) also formed Asc degradation. aim this study was to develop single method whereby distribution its catabolites fruit vegetative sources could be determined. Methods Results: Effective recoveries total Asc, TA,...
"Burkholderia sprentiae" strain WSM5005T is an aerobic, motile, Gram-negative, non-spore-forming rod that was isolated in Australia from effective N2-fixing root nodule of Lebeckia ambigua collected Klawer, Western Cape South Africa, October 2007. Here we describe the features WSM5005T, together with genome sequence and its annotation. The 7,761,063 bp high-quality-draft arranged 8 scaffolds 236 contigs, contains 7,147 protein-coding genes 76 RNA-only encoding genes, one 20 rhizobial genomes...