Russell Allan Barrow

Australian Dryland Wheat Growth and Yield Are Positively Impacted by a Methylobacterium symbioticum Biostimulant Under Reduced Nitrogen Supply

Oli Ahmed Fakir, K. M. Shamsul Haque, Andrew Wilson, Russell Allan Barrow et autres

Enhancing nitrogen use efficiency (NUE) in cereal crops is a major challenge for dryland systems that rely heavily on synthetic nitrogen (N) inputs. Microbial biostimulants have recently emerged as promising alternatives for cost-effective N inputs in wheat through foliar colonization and endophytic …

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Bioactivity and Compound Identification in Extracts from Three Australian Populations of Portulaca oleracea: Full NMR Structural Characterisation of Oleracein Australis 1

Colette Geier, Rachael Micklewright, Russell Allan Barrow, Joanne F. Jamie et autres

Three Australian populations of Portulaca oleracea—Common Purslane, Omega Gold and Omega Red—were grown under identical conditions, separated into portions—leaf, bud, stem and root—and their extracts tested for total phenolic content (TPC), Trolox equivalent antioxidant capacity (TEAC), ferric-reducing antioxidant potential (FRAP), and for …

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Volatile-mediated behavioural preferences in the chemical ecology of dung beetles: a review

Nisansala N. Perera, Russell Allan Barrow, Paul A. Weston, Leslie A. Weston et autres

Dung beetles are important processors of animal faeces in terrestrial ecosystems and especially in pastoral agriculture. Volatiles emitted from different types of vertebrate dung are diverse and play a crucial role in attraction of dung beetles. A great deal of previous research …

Deliberately introduced dung beetles in A ustralia: 12 years of occurrence and abundance records from 2001 to 2022

Jacob D. Berson, Penelope B. Edwards, T. J. Ridsdill‐Smith, Christopher K. Taylor et autres

Since 1968, the Australian Dung Beetle Project has carried out field releases of 43 deliberately introduced dung beetle species for the biological control of livestock dung and dung-breeding pests. Of these, 23 species are known to have become established. For most of …

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Synthesis and spectroscopic investigation of substituted piperazine-2,5-dione derivatives

Craig Stewart, Nicholas G. White, Russell Allan Barrow, Tristan A. Reekie

The piperazine-2,5-dione moiety is a useful scaffold for functionalisation to generate bioactive molecules. Synthetic methods for accessing substituted piperazine-2,5-diones involve cyclising dipeptides or building from the already established core. Utilising the latter method, we have developed procedures to condense a variety of …

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Field evaluation of electrophysiologically-active dung volatiles as chemical lures for trapping of dung beetles

Nisansala N. Perera, Russell Allan Barrow, Paul A. Weston, Leslie A. Weston et autres

Dung beetles are economically important beneficial insects that process dung. To locate this source, they use volatile organic compounds (VOCs). The objectives of the study were to evaluate the attractiveness of ten electrophysiologically-active dung volatiles (phenol, skatole, indole, p-cresol, butanone, butyric acid, …

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Synthesis and spectroscopic investigation of substituted piperazine-2,5-dione derivatives

Craig D. Stuart, Nicholas G. White, Russell Allan Barrow, Tristan A. Reekie

The piperazine-2,5-dione moiety is a useful scaffold for functionalisation to generate bioactive molecules. Synthetic methods for accessing substituted piperazine-2,5-diones involve cyclising dipeptides or building from the already established core. Utilising the latter method, we have developed procedures to condense a variety of …

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Characterisation of Antennal Sensilla and Electroantennography Responses of the Dung Beetles Bubas bison, Onitis aygulus and Geotrupes spiniger (Coleoptera: Scarabaeoidea) to Dung Volatile Organic Compounds

Nisansala N. Perera, Russell Allan Barrow, Paul A. Weston, Vivien Rolland et autres

Locating sporadically distributed food resources and mate finding are strongly aided by volatile cues for most insects, including dung beetles. However, there is limited information on the olfactory ecology of dung beetles. We conducted a scanning electron microscopy study on the morphology …

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Synthesis and Spectroscopic Investigation of Substituted Piperazine-2,5-Dione Derivatives

Craig Stewart, Nicholas G. White, Russell Allan Barrow, Tristan A. Reekie

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Photolysis of caged cytokinin in single cells of Arabidopsis thaliana

Lachlan Dow, Russell Allan Barrow, Rosemary G. White, Ulrike Mathesius

BACKGROUND: Cytokinins are a class of phytohormone that play a crucial role in the development of plants. They are involved in the regulation of nearly every aspect of plant growth, from germination to senescence. The role of cytokinins in many developmental programs …

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Contrasting Volatilomes of Livestock Dung Drive Preference of the Dung Beetle Bubas bison (Coleoptera: Scarabaeidae)

Nisansala N. Perera, Paul A. Weston, Russell Allan Barrow, Leslie A. Weston et autres

Volatile cues can play a significant role in the location and discrimination of food resources by insects. Dung beetles have been reported to discriminate among dung types produced by different species, thereby exhibiting behavioral preferences. However, the role of volatile organic compounds …

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Metabolic Profiling Provides Unique Insights to Accumulation and Biosynthesis of Key Secondary Metabolites in Annual Pasture Legumes of Mediterranean Origin

Sajid Latif, Paul A. Weston, Russell Allan Barrow, Saliya Gurusinghe et autres

Annual legumes from the Mediterranean region are receiving attention in Australia as alternatives to traditional pasture species. The current study employed novel metabolic profiling approaches to quantify key secondary metabolites including phytoestrogens to better understand their biosynthetic regulation in a range of …

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