Maarten Ryder

Research Interests

Soil Biology Biological Control Environmentally sustainable plant production

Dr Maarten Ryder

Grant-Funded Research Fellow

School of Agriculture, Food and Wine

College of Science

My research focuses on soil microbial ecology, biological nitrogen fixation and biological control of plant diseases.  

Date Type Title Institution Name Country Amount
2017 Award Pioneer in Soil Science Soil Science Society of Australia, SA Branch Australia -
2006 Award International Collaboration Prize for Science and Technology Shandong Academy of Sciences and Shandong Provincial Government China -
2005 Award Qilu Friendship Award Shandong Academy of Sciences & Shandong Provincial Government China -

Language Competency
Dutch; Flemish Can read, write, speak and understand spoken
German Can read, write, speak and understand spoken

Date Institution name Country Title
1985 University of Adelaide Australia PhD

Year Citation
2025 Riley, I. T., Ryder, M. H., Rathjen, J. R., Lai, T. V., & Denton, M. D. (2025). In vitro Assessment Indicates that Fertilizers Commonly Used in Legume Production Differentially Inhibit Commercial Rhizobial Strains. Communications in Soil Science and Plant Analysis, 56(5), 687-700.
DOI Scopus1 WoS1
2025 Lai, T. V., Ryder, M. H., Rathjen, J. R., Riley, I. T., & Denton, M. D. (2025). Seed-applied micronutrient toxicity to rhizobia and impaired legume nodulation.. J Appl Microbiol, 136(4), 9 pages.
DOI
2025 Alemneh, A. A., Cawthray, G. R., Zhou, Y., Ryder, M. H., & Denton, M. D. (2025). A new isolation methodology for phosphate-solubilizing bacteria using a step-wise enrichment process. Journal of Applied Microbiology, 136(5), lxaf101-1-lxaf101-15.
DOI
2025 Rathjen, J. R., Ryder, M. H., Lai, T. V., Riley, I. T., Brand, J., & Denton, M. D. (2025). The impact of fungicides with contrasting toxicities to rhizobia on the growth and nodulation of pulses in southern Australia. Crop and Pasture Science, 76(9), 16 pages.
DOI
2024 Zhou, Y., Toh, R., Iqbal, N., Ryder, M., Li, J., & Denton, M. D. (2024). Biological Nitrification Inhibition by Australian Tussock Grass and Its Impact on the Rhizosphere Ammonia-Oxidizing Microbiome. Grasses, 3(4), 297-306.
DOI
2023 Zhou, Y., Wei, Y., Ryder, M., Li, H., Zhao, Z., Toh, R., . . . Denton, M. D. (2023). Soil salinity determines the assembly of endophytic bacterial communities in the roots but not leaves of halophytes in a river delta ecosystem. Geoderma, 433, 116447-1-116447-13.
DOI Scopus15 WoS14
2023 Rathjen, J. R., Zaw, M., Ryder, M. H., Zhou, Y., Lai, T. V., & Denton, M. D. (2023). Native soil origin influences the symbiotic N fixation effectiveness of chickpea mesorhizobia grown in Australian soils. Biology and Fertility of Soils, 60(1), 137-151.
DOI Scopus6 WoS5
2022 Tanaka, A., Ryder, M., Suzuki, T., Uesaka, K., Yamaguchi, N., Amimoto, T., . . . Takemoto, D. (2022). Production of agrocinopine A by <i>Ipomoea batatas</i> agrocinopine synthase in transgenic tobacco and its effect on the rhizosphere microbial community.. Molecular plant-microbe interactions : MPMI, 35(1), 73-84.
DOI Scopus6 WoS5 Europe PMC3
2022 Li, H., Toh, R., Wei, Y., Wang, Y., Hu, J., An, S., . . . Denton, M. D. (2022). Microbiomes across root compartments are shaped by inoculation with a fungal biological control agent. Applied Soil Ecology, 170, 104230.
DOI Scopus10 WoS8
2022 Xi, H., Grist, J., Ryder, M., & Searle, I. (2022). Complete Genome Sequence Data of the Grapevine Crown Gall inhibiting bacteria Allorhizobium vitis Strain F2/5.. Mol Plant Microbe Interact, 35(2), 174-176.
DOI Scopus2
2022 Asenstorfer, R. E., Ryder, M. H., & Jones, G. P. (2022). Agrocinopine C, a Ti-plasmid-coded enzyme-product, is a 2-O, 6-O linked phosphodiester of D-Glucose and sucrose. PHYTOCHEMISTRY, 194, 8 pages.
DOI Scopus3 WoS3 Europe PMC2
2022 Alemneh, A. A., Zhou, Y., Ryder, M. H., & Denton, M. D. (2022). Soil environment influences plant growth-promotion traits of isolated rhizobacteria. Pedobiologia, 90, 11 pages.
DOI Scopus21 WoS19
2022 Zaw, M., Rathjen, J. R., Zhou, Y., Ryder, M. H., & Denton, M. D. (2022). Rhizobial diversity is associated with inoculation history at a two-continent scale.. FEMS microbiology ecology, 98(5), 1-14.
DOI Scopus5 WoS4 Europe PMC2
2022 An, S., Wei, Y., Li, H., Zhao, Z., Hu, J., Philp, J., . . . Denton, M. D. (2022). Long-Term Monocultures of American Ginseng Change the Rhizosphere Microbiome by Reducing Phenolic Acids in Soil. Agriculture (Switzerland), 12(5), 1-17.
DOI Scopus14 WoS15
2022 Liu, M., Philp, J., Wang, Y., Hu, J., Wei, Y., Li, J., . . . Yang, H. (2022). Plant growth-promoting rhizobacteria Burkholderia vietnamiensis B418 inhibits root-knot nematode on watermelon by modifying the rhizosphere microbial community.. Scientific reports, 12(1), 13 pages.
DOI Scopus66 WoS59 Europe PMC23
2022 Zhou, Y., Wei, Y., Zhao, Z., Li, J., Li, H., Yang, P., . . . Denton, M. D. (2022). Microbial communities along the soil-root continuum are determined by root anatomical boundaries, soil properties, and root exudation. Soil Biology and Biochemistry, 171, 1-11.
DOI Scopus60 WoS56
2022 Sui, L., Li, J., Philp, J., Yang, K., Wei, Y., Li, H., . . . Wang, Y. (2022). Trichoderma atroviride seed dressing influenced the fungal community and pathogenic fungi in the wheat rhizosphere.. Scientific reports, 12(1), 12 pages.
DOI Scopus36 WoS33 Europe PMC13
2021 Lai, T. V., Ryder, M. H., Rathjen, J. R., Bolan, N. S., Croxford, A. E., & Denton, M. D. (2021). Dissimilatory nitrate reduction to ammonium increased with rising temperature. Biology and Fertility of Soils, 57(3), 363-372.
DOI Scopus38 WoS28
2021 Alemneh, A. A., Zhou, Y., Ryder, M. H., & Denton, M. (2021). Is phosphate solubilising ability in plant growth-promoting rhizobacteria isolated from chickpea linked to their ability to produce ACC deaminase?. Journal of Applied Microbiology, 131(5), 2416-2432.
DOI Scopus23 WoS20 Europe PMC10
2021 Alemneh, A. A., Cawthray, G. R., Zhou, Y., Ryder, M. H., & Denton, M. D. (2021). Ability to produce indole acetic acid is associated with improved phosphate solubilising activity of rhizobacteria. Archives of Microbiology, 203(7), 3825-3837.
DOI Scopus40 WoS30 Europe PMC16
2021 Alemneh, A. A., Zhou, Y., Ryder, M. H., & Denton, M. D. (2021). Large-scale screening of rhizobacteria to enhance the chickpea-Mesorhizobium symbiosis using a plant-based strategy. Rhizosphere, 18, 100361-1-100361-11.
DOI Scopus18 WoS18
2021 Zaw, M., Rathjen, J. R., Zhou, Y., Ryder, M. H., & Denton, M. D. (2021). Symbiotic effectiveness, ecological adaptation and phylogenetic diversity of chickpea rhizobia isolated from a large-scale Australian soil collection. Plant and Soil, 469(1-2), 49-71.
DOI Scopus13 WoS12
2021 Xi, H., Ryder, M., & Searle, I. R. (2021). Near-Complete Genome Assembly of the Grapevine Crown Gall Pathogen Allorhizobium vitis Strain K377. Microbiology Resource Announcements, 10(39), 1-2.
DOI Scopus2
2020 Hu, J., Zhou, Y., Chen, K., Li, J., Wei, Y., Wang, Y., . . . Denton, M. (2020). Large-scale Trichoderma diversity was associated with ecosystem, climate and geographic location. Environmental Microbiology, 22(3), 1011-1024.
DOI Scopus33 WoS29 Europe PMC19
2020 Rathjen, J. R., Ryder, M. H., Riley, I. T., Lai, T. V., & Denton, M. D. (2020). Impact of seed-applied pesticides on rhizobial survival and legume nodulation.. J Appl Microbiol, 129(2), 389-399.
DOI Scopus21 WoS15 Europe PMC7
2020 Zhou, Y. I., Wang, Y., Chen, K., Wu, Y., Hu, J., Wei, Y., . . . Denton, M. (2020). Near-complete genomes of two Trichoderma species: a resource for biological control of plant pathogens. Molecular Plant-Microbe Interactions, 33(8), 1036-1039.
DOI Scopus18 WoS17 Europe PMC11
2020 Xi, H., Ryder, M., & Searle, I. (2020). Complete genome sequence of Allorhizobium vitis strain K306, the causal agent of grapevine crown gall. Microbiologial Resource Annoucements, 9(29), e00565-20-1-e00565-20-3.
DOI Scopus3 WoS3 Europe PMC2
2020 Alemneh, A., Zhou, Y., Ryder, M., & Denton, M. D. (2020). Mechanisms in plant growth-promoting rhizobacteria that enhance the legume–rhizobial symbiosis. Journal of Applied Microbiology, 129(5), 1133-1156.
DOI Scopus91 WoS79 Europe PMC45
2020 Li, J., Philp, J., Li, J., Wei, Y., Li, H., Yang, K., . . . Wang, Y. (2020). Trichoderma harzianum inoculation reduces the incidence of clubroot disease in Chinese cabbage by regulating the rhizosphere microbial community. Microorganisms, 8(9), 1325-1-1325-17.
DOI Scopus61 WoS52 Europe PMC34
2020 Zhou, Y., Lambrides, C. J., Li, J., Xu, Q., Toh, R., Tian, S., . . . Denton, M. D. (2020). Nitrifying microbes in the rhizosphere of perennial grasses are modified by biological nitrification inhibition. Microorganisms, 8(11), 1687-1-1687-14.
DOI Scopus19 WoS16 Europe PMC6
2019 Pattison, A. L., Burgess, L. W., Bell, T. L., & Ryder, M. H. (2019). Vegetative reproduction and root anatomy of Solanum centrale J.M.Black (Australian bush tomato). Rangeland Journal, 41(4), 345-354.
DOI Scopus4
2018 Elvin, C. M., Asenstorfer, R. E., Ryder, M. H., Donner, S. C., Jones, G. P., & Tate, M. E. (2018). Agrocin 108 is a 5'-cytidine nucleotide bacteriocin containing a carbocyclic phosphoryl-ascorbate group. Journal of Antibiotics, 71(4), 438-446.
DOI Scopus1 WoS1 Europe PMC1
2017 Fana, D., Ryder, M., & Denton, M. D. (2017). The potential for rhizobial inoculation to increase soybean grain yields on acid soils in Ethiopia. Soil Science and Plant Nutrition, 63(5), 441-451.
DOI Scopus36 WoS29
2011 Dennett, A. L., Burgess, L. W., McGee, P. A., & Ryder, M. H. (2011). Arbuscular mycorrhizal associations in Solanum centrale (bush tomato), a perennial sub-shrub from the arid zone of Australia. Journal of Arid Environments, 75(8), 688-694.
DOI Scopus10
2007 Wakelin, S. A., Gupta, V. V. S. R., Harvey, P. R., & Ryder, M. H. (2007). The effect of Penicillium fungi on plant growth and phosphorus mobilization in neutral to alkaline soils from southern Australia. Canadian Journal of Microbiology, 53(1), 106-115.
DOI Scopus78 Europe PMC28
2006 Barnett, S., Roget, D., & Ryder, M. (2006). Suppression of Rhizoctonia solani AG-8 induced disease on wheat by the interaction between Pantoea, Exiguobacterium, and Microbacteria. Australian Journal of Soil Research, 44(4), 331-342.
DOI Scopus63 WoS57
2006 Wakelin, S., Anstis, S., Warren, R., & Ryder, M. (2006). The role of pathogen suppression on the growth promotion of wheat by Penicillium radicum. Australasian Plant Pathology, 35(2), 253-258.
DOI Scopus15 WoS13
2004 Wakelin, S. A., Warren, R. A., & Ryder, M. H. (2004). Effect of soil properties on growth promotion of wheat by Penicillium radicum. Australian Journal of Soil Research, 42(8), 897-904.
DOI Scopus23
2004 Wakelin, S. A., Warren, R. A., Harvey, P. R., & Ryder, M. H. (2004). Phosphate solubilization by Penicillium spp. closely associated with wheat roots. Biology and Fertility of Soils, 40(1), 36-43.
DOI Scopus296
2003 Choi, H. Y., Ryder, M. H., Gillings, M. R., Stokes, H. W., Ophel-Keller, K. M., & Veal, D. A. (2003). Survival of a lacZY-marked strain of Pseudomonas corrugata following a field release. FEMS Microbiology Ecology, 43(3), 367-374.
DOI Scopus10 WoS9 Europe PMC6
2001 Heinrich, K., Ryder, M., & Murphy, P. (2001). Early production of rhizopine in nodules induced by Sinorhizobium meliloti strain L5-30. Canadian Journal of Microbiology, 47(2), 165-171.
DOI Scopus20 WoS18 Europe PMC11
2000 Ross, I. L., Alami, Y., Harvey, P. R., Achouak, W., & Ryder, M. H. (2000). Genetic diversity and biological control activity of novel species of closely related pseudomonads isolated from wheat field soils in South Australia. Applied and Environmental Microbiology, 66(4), 1609-1616.
DOI Scopus92 WoS85 Europe PMC42
1999 Barnett, S. J., Alami, Y., Singleton, I., & Ryder, M. H. (1999). Diversification of Pseudomonas corrugata 2140 produces new phenotypes altered in GC-FAME, BIOLOG, and in vitro inhibition profiles and taxonomic identification. Canadian Journal of Microbiology, 45(4), 287-298.
DOI Scopus6 WoS6 Europe PMC4
1999 Barnett, S. J., Singleton, I., & Ryder, M. (1999). Spatial variation in populations of Pseudomonas corrugata 2140 and pseudomonads on take-all diseased and healthy root systems of wheat. Soil Biology and Biochemistry, 31(4), 633-636.
DOI Scopus20 WoS18
1999 Heinrich, K., Gordon, D. M., Ryder, M. H., & Murphy, P. J. (1999). A rhizopine strain of Sinorhizobium meliloti remains at a competitive nodulation advantage after an extended period in the soil. Soil Biology and Biochemistry, 31(7), 1063-1065.
DOI Scopus14
1998 Ryder, M. H., Yan, Z., Terrace, T. E., Rovira, A. D., Tang, W., & Correll, R. L. (1998). Use of strains of Bacillus isolated in China to suppress take-all and rhizoctonia root rot, and promote seedling growth of glasshouse-grown wheat in Australian soils. Soil Biology and Biochemistry, 31(1), 19-29.
DOI Scopus87 WoS65
1996 Gordon, D., Ryder, M., Heinrich, K., & Murphy, P. (1996). An experimental test of the Rhizopine concept in Rhizobium meliloti. Applied and Environmental Microbiology, 62(11), 3991-3996.
DOI Scopus59 WoS57 Europe PMC37
1996 White, D., Leifert, C., Ryder, M. H., & Killham, K. (1996). Lux gene technology - A strategy to optimize biological control of soil-borne diseases. New Phytologist, 133(1), 173-181.
DOI Scopus12 WoS10
1995 Doube, B., Ryder, M., Davoren, C., & Meyer, T. (1995). Monitoring of biocontrol agents and genetically engineered microorganisms in the environment: biotechnological approaches. Acta Zoologica Fennica, 196, 219-223.
1994 Doube, B. M., Stephens, P. M., Davoren, C. W., & Ryder, M. H. (1994). Interactions between earthworms, beneficial soil microorganisms and root pathogens. Applied Soil Ecology, 1(1), 3-10.
DOI Scopus64 WoS56
1994 Ryder, M. (1994). Key issues in the deliberate release of genetically-manipulated bacteria. FEMS Microbiology Ecology, 15(1-2), 139-145.
DOI Scopus25 WoS22
1994 Stephens, P. M., Davoren, C. W., Ryder, M. H., & Doube, B. M. (1994). Influence of the earthworm Aporrectodea trapezoides (Lumbricidae) on the colonization of alfalfa (Medicago sativa L.) roots by Rhizobium meliloti L5-30R and the survival of R. meliloti L5-30R in soil. Biology and Fertility of Soils, 18(1), 63-70.
DOI Scopus35 WoS26
1994 Harris, A. R., Schisler, D. A., Ryder, M. H., & Adkins, P. G. (1994). Bacteria suppress damping-off caused by Pythium ultimumvar. Sporangiiferum, and promote growth, in bedding plants. Soil Biology and Biochemistry, 26(10), 1431-1437.
DOI Scopus14 WoS13
1994 Harris, A. R., Schisler, D. A., Correll, R. L., & Ryder, M. H. (1994). Soil bacteria selected for suppression of Rhizoctonia solani, and growth promotion, in bedding plants. Soil Biology and Biochemistry, 26(9), 1249-1255.
DOI Scopus12 WoS15
1994 Harris, A. R., Schisler, D. A., Neate, S. M., & Ryder, M. H. (1994). Suppression of damping-off caused by Rhizoctonia solani, and growth promotion, in bedding plants by binucleate Rhizoctonia spp. Soil Biology and Biochemistry, 26(2), 263-268.
DOI Scopus46 WoS44 Europe PMC19
1994 Stephens, P. M., Davoren, C. W., Ryder, M. H., Doube, B. M., & Correll, R. L. (1994). Field evidence for reduced severity of Rhizoctonia bare-patch disease of wheat, due to the presence of the earthworms Aporrectodea Rosea and Aporrectodea Trapezoides. Soil Biology and Biochemistry, 26(11), 1495-1500.
DOI Scopus23
1994 Stephens, P. M., Davoren, C. W., Doube, B. M., & Ryder, M. H. (1994). Ability of the earthworms Aporrectodea rosea and Aporrectodea trapezoides to increase plant growth and the foliar concentration of elements in wheat (Triticum aestivum cv. spear) in a sandy loam soil. Biology and Fertility of Soils, 18(2), 150-154.
DOI Scopus35
1994 Stephens, P. M., Davoren, C. W., Doube, B. M., & Ryder, M. H. (1994). Ability of the lumbricid earthworms Aporrectodea rosea and Aporrectodea trapezoides to reduce the severity of take-all under greenhouse and field conditions. Soil Biology and Biochemistry, 26(10), 1291-1297.
DOI Scopus42
1994 Stephens, P. M., Davoren, C. W., Ryder, M. H., & Doube, B. M. (1994). Influence of the earthworms Aporrectodea rosea and Aporrectodea trapezoides on Rhizoctonia solani disease of wheat seedlings and the interaction with a surface mulch of cereal-pea straw. Soil Biology and Biochemistry, 26(9), 1285-1287.
DOI Scopus14
1994 Doube, B. M., Ryder, M. H., Davoren, C. W., & Stephens, P. M. (1994). Enhanced root nodulation of subterranean clover (Trifolium subterraneum) by Rhizobium leguminosarium biovar trifolii in the presence of the earthworm Aporrectodea trapezoides (Lumbricidae). Biology and Fertility of Soils, 18(3), 169-174.
DOI Scopus39
1993 Ryder, M. H., & Rovira, A. D. (1993). Biological control of take-all of glasshouse-grown wheat using strains of pseudomonas corrugata isolated from wheat field soil. Soil Biology and Biochemistry, 25(3), 311-320.
DOI Scopus50 WoS49
1993 BIRD, A. F., & RYDER, M. H. (1993). FEEDING OF THE NEMATODE ACROBELOIDES-NANUS ON BACTERIA. JOURNAL OF NEMATOLOGY, 25(3), 493-499.
WoS23 Europe PMC10
1993 Stephens, P. M., Davoren, C. W., Ryder, M. H., & Doube, B. M. (1993). Influence of the lumbricid earthworm Aporrectodea trapezoides on the colonization of wheat roots by Pseudomonas corrugata strain 2140R in soil. Soil Biology and Biochemistry, 25(12), 1719-1724.
DOI Scopus30 WoS24
1993 Stephens, P. M., Davoren, C. W., Doube, B. M., Ryder, M. H., Benger, A. M., & Neate, S. M. (1993). Reduced severity of rhizoctonia solani disease on wheat seedlings associated with the presence of the earthworm aporrectodea trapezoides (lumbricidae). Soil Biology and Biochemistry, 25(11), 1477-1484.
DOI Scopus50 WoS32 Europe PMC18
1993 Harris, A. R., Schisler, D. A., & Ryder, M. H. (1993). Binucleate Rhizoctonia isolates control damping-off caused by Pythium ultimum var. Sporangiiferum, and promote growth, in Capsicum and Celosia seedlings in pasteurized potting medium. Soil Biology and Biochemistry, 25(7), 909-914.
DOI Scopus37
1991 RYDER, M. H., & JONES, D. A. (1991). BIOLOGICAL-CONTROL OF CROWN GALL USING AGROBACTERIUM STRAINS K84 AND K1026. AUSTRALIAN JOURNAL OF PLANT PHYSIOLOGY, 18(5), 571-579.
DOI WoS15
1991 Schisler, D. A., & Ryder, M. H. (1991). Microbial recolonization and suppression of Rhizoctonia solani in a bedding-plant potting mix amended with recycled mix before aerated-steam treatment. Biology and Fertility of Soils, 11(3), 174-180.
DOI Scopus4 WoS5
1988 Jones, D. A., Ryder, M. H., Clare, B. G., Farrand, S. K., & Kerr, A. (1988). Construction of a Tra- deletion mutant of pAgK84 to safeguard the biological control of crown gall. MGG Molecular General Genetics, 212(2), 207-214.
DOI Scopus70 WoS71
1988 Davioud, E., Petit, A., Tate, M. E., Ryder, M. H., & Tempé, J. (1988). Cucumopine-a new T-DNA-encoded opine in hairy root and crown gall. Phytochemistry, 27(8), 2429-2433.
DOI Scopus39 WoS34
1987 Ryder, M. H., Slota, J. E., Scarim, A., & Farrand, S. K. (1987). Genetic analysis of agrocin 84 production and immunity in Agrobacterium spp.. Journal of Bacteriology, 169(9), 4184-4189.
DOI Scopus35 Europe PMC26
1986 FARRAND, S. K., RYDER, M. H., SHIM, J. S., & KERR, A. (1986). BIOLOGICAL-CONTROL OF CROWN GALL - MOLECULAR APPROACHS TO IMPROVED AGROCIN-84 DELIVERY SYSTEMS. JOURNAL OF CELLULAR BIOCHEMISTRY, 32.
1985 RYDER, M. H., TATE, M. E., & KERR, A. (1985). VIRULENCE PROPERTIES OF STRAINS OF AGROBACTERIUM ON THE APICAL AND BASAL SURFACES OF CARROT ROOT DISKS. PLANT PHYSIOLOGY, 77(1), 215-221.
DOI WoS72 Europe PMC32
1984 Ryder, M. H., Tate, M. E., & Jones, G. P. (1984). Agrocinopine A, a tumor-inducing plasmid-coded enzyme product, is a phosphodiester of sucrose and L-arabinose. Journal of Biological Chemistry, 259(15), 9704-9710.
DOI Scopus63 WoS67 Europe PMC46
1984 Ellis, J. G., Ryder, M. H., & Tate, M. E. (1984). Agrobacterium tumefaciens TR-DNA encodes a pathway for agropine biosynthesis. MGG Molecular General Genetics, 195(3), 466-473.
DOI Scopus63 WoS72

Year Citation
2022 Farquharson, E., Ballard, R., Herridge, D., Ryder, M., Denton, M., Webster, A., . . . O'Hara, G. (2022). Inoculating Legumes: Practice and Science.

Year Citation
2014 Denton, M. D., & Ryder, M. (2014). A national survey of farmers in Australia to understand rhizobial inoculant use for pulse and pasture legumes. In International Food Legume Research Conference and Interantional Conference on Legume Genomics and Genetics. Saskatoon, Canada.
2014 Ryder, M., Seymour, N., Ballard, N., Denton, M. D., & Ballard, R. (2014). A national survey of legume growers: current knowledge and Rhizobium
inoculation practice. In Proceedings of the 17th Australian Nitrogen Fixation Conference (pp. 88-89). Adelaide, Australia.
2013 Ballard, R., Drew, L., Denton, M. D., Ryder, M., Deaker, R., Jones, S., . . . Herridge, D. (2013). Optimising legume N2-fixation: an overview of the Australian Nitrogen Fixation Program. In Pulse Breeding Australia Conference. Adelaide.
2000 Ryder, M. H., Herdina., Juhasz, A. L., Harvey, P. R., Ross, I. L., Ophel-Keller, K. M., & Roget, D. K. (2000). Soil microbiota: a gold mine and a minefield for biotechnology. In E. Balazs, E. Galante, J. M. Lynch, J. S. Schepers, J. P. Toutant, D. Werner, & P. A. T. Werry (Eds.), BIOLOGICAL RESOURCE MANAGEMENT: CONNECTING SCIENCE AND POLICY (pp. 3-16). ORG ECON COOPERAT & DEV, PARIS, FRANCE: SPRINGER-VERLAG BERLIN.
1997 Schmidt, O., Doube, B. M., Ryder, M. H., & Killham, K. (1997). Population dynamics of Pseudomonas corrugata 2140R lux8 in earthworm food and in earthworm casts. In Soil Biology and Biochemistry Vol. 29 (pp. 523-528). COLUMBUS, OH: PERGAMON-ELSEVIER SCIENCE LTD.
DOI Scopus20 WoS15

Year Citation
2022 Rathjen, J., Zaw, M., Zhou, Y., Ryder, M., & Denton, M. (2022). Diversity and field symbiotic performance of Mesorhizobium strains collected across chickpea cropping areas of Australia and Myanmar. Poster session presented at the meeting of 18th Australian Nitrogen Fixation Conference 2022. Fremantle.
2020 Rathjen, J., Ryder, M., Lai, T., Riley, I., & Denton, M. (2020). Improving nodulation with seed-applied fungicides. Poster session presented at the meeting of SUNFix Symposium.
2017 Rathjen, J., Ryder, M., Riley, I., & Denton, M. (2017). Effect of seed-applied pesticides on the survival of Rhizobium leguminosarum and Mesorhizobium ciceri on legume seeds. Poster session presented at the meeting of SUNFix Symposium.

Year Citation
2022 Farquharson, E., Rathjen, J., Ballard, R., Barnett, S., Brand, J., Roberts, P., . . . Mckay, A. (2022). An overview of research advances to optimise inoculation, nodulation and nitrogen fixation of pulse crops in southern Australia.
2014 Ryder, M., & Denton, M. D. (2014). Maximising the nitrogen benefits from legumes through better inoculation with rhizobia.
2014 Ryder, M., Denton, M. D., & Ballard, R. (2014). Maximising the nitrogen (N) benefits from rhizobial inoculation.

Date Role Research Topic Program Degree Type Student Load Student Name
2017 - 2021 Co-Supervisor Enhancing the chickpea-Mesorhizobium symbiosis using beneficial rhizobacteria Doctor of Philosophy Doctorate Full Time APrf Anteneh Argaw Alemneh
2013 - 2018 Co-Supervisor Investigating the potential for bradyrhizobia and phosphate solubilising microorganisms to improve soybean (Glycine max (L.) Merr.) production in acid soils in Ethiopia Doctor of Philosophy Doctorate Full Time Mr Daniel Muleta Fana
2009 - 2015 Co-Supervisor New approaches to explore the past and present diversity of Australian sandalwood species -- from palaeobotany to next generation sequencing. Doctor of Philosophy Doctorate Part Time Ms Patricia Fuentes-Cross
2000 - 2005 Principal Supervisor Penicillium Radicum: Studies on the Mechanisms of Growth Promotion in Wheat Doctor of Philosophy Doctorate Full Time Mr Simon Anstis
1996 - 2003 Co-Supervisor The Enhancement of Wheat Growth after Inoculation with Free-Living Nitrogen-fixing Bacteria Doctor of Philosophy Doctorate Full Time Mrs Suzanne Wiebkin

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