Publications: Centre for Rhizobium Studies

2013

Howieson, J.G., De Meyer, S.E., Vivas-Marfisi, A.I., Ratnayake, S, Ardley, J.K. and Yates, R.J. (2013) Novel Burkholderia bacteria isolated from Lebeckia ambigua – A perennial suffrutescent legume of the fynbos. Soil Biology and Biochemistry, 60 . pp. 55-64.

2012

Ardley, J.K., Parker, M.A., De Meyer, S.E., Trengove, R.D., O'Hara, G.W., Reeve, W.G., Yates, R.J., Dilworth, M.J., Willems, A. and Howieson, J.G. (2012) Microvirga lupini sp. nov., Microvirga lotononidis sp. nov., and Microvirga zambiensis sp. nov. are Alphaproteobacterial root nodule bacteria that specifically nodulate and fix nitrogen with geographically and taxonomically separate legume hosts. International Journal of Systematic and Evolutionary Microbiology, 62 (11). pp. 2579-2588.

Black, M., Moolhuijzen, P., Chapman, B., Barrero, R., Howieson, J., Hungria, M. and Bellgard, M. (2012) The genetics of symbiotic nitrogen fixation: Comparative genomics of 14 rhizobia strains by resolution of protein clusters. Genes, 3 (1). pp. 138-166.

Gerding, M., O'Hara, G.W., Bräu, L., Nandasena, K. and Howieson, J.G. (2012) Diverse Mesorhizobium spp. with unique nodA nodulating the South African legume species of the genus Lessertia. Plant and Soil, 358 (1-2). pp. 385-401.

Gerding González, M., O’Hara, G.W., Bräu, L., Nandasena, K. and Howieson, J.G. (2012) Diverse Mesorhizobium spp. with unique nodA nodulating the South African legume species of the genus Lessertia. Plant and Soil, 358 (1-2). pp. 385-401.

Loi, A., Nutt, B.J., Howieson, J.G., Yates, R.J. and Norman, H.C. (2012) Preliminary assessment of bladder clover (Trifolium spumosum L.) as an annual legume for ley farming systems in southern Australia. Crop and Pasture Science, 63 (6). pp. 582-591.

Melino, V.J., Drew, E.A., Ballard, R.A., Reeve, W.G., Thomson, G., White, R.G. and O'Hara, G.W. (2012) Identifying abnormalities in symbiotic development between Trifolium spp. and Rhizobium leguminosarum bv. trifolii leading to sub-optimal and ineffective nodule phenotypes. Annals of Botany, 110 (8). pp. 1559-1572.

Tian, Rui (2012) Identification of the regulatory genes required for the acid activation of the low pH inducible gene lpiA in Sinorhizobium medicae. PhD thesis, Murdoch University.

2011

Denton, M.D., Coventry, D.R., Bellotti, W.D. and Howieson, J.G. (2011) Nitrogen fixation in annual Trifolium species in alkaline soils as assessed by the 15N natural abundance method. Crop and Pasture Science, 62 (8). pp. 712-720.

Fox, S.L., O'Hara, G.W. and Bräu, L. (2011) Enhanced nodulation and symbiotic effectiveness of Medicago truncatula when co-inoculated with Pseudomonas fluorescens WSM3457 and Ensifer (Sinorhizobium) medicae WSM419. Plant and Soil, 348 (1-2). pp. 245-254.

Howieson, J.G., Ballard, R.A., Yates, R.J. and Charman, N. (2011) Selecting improved Lotus nodulating rhizobia to expedite the development of new forage species. Plant and Soil, 348 (1-2). pp. 231-243.

Newton, W.E. and Dilworth, M.J. (2011) Assays of nitrogenase reaction products. Methods in molecular biology, 766 . pp. 105-127.

Yates, R.J., Howieson, J.G., Reeve, W.G. and O'Hara, G.W. (2011) A re-appraisal of the biology and terminology describing rhizobial strain success in nodule occupancy of legumes in agriculture. Plant and Soil, 348 (1-2). pp. 255-267.

2010

Ardley, J.K., Garau, G., Yates, R.J., Parker, M.A., O'Hara, G.W., Reeve, W.G., De Meyer, S., Walker, R., Dilworth, M.J., Willems, A., Watkin, E. and Howieson, J.G. (2010) Novel genera of root nodule bacteria demonstrate the microsymbiont diversity of the legume/rhizobia symbiosis. In: 5th International Legumes Conference, 8 - 14 August, Buenos Aires, Argentina .

Ardley, J.K., Parker, M.A., De Meyer, S., O'Hara, G.W., Reeve, W.G., Yates, R.J., Dilworth, M.J., Willems, A. and Howieson, J.G. (2010) Species of Microvirga are novel alpha-proteobacterial root nodule bacteria that specifically nodulate Lotononis angolensis and Lupinus texensis. In: 9th European Nitrogen Fixation Conference, 6 - 10 September, Geneva, Switzerland .

Reeve, W., Williams, N., Burgess, T., O'Brien, P., McComb, J.A., Hardham, A., Kamoun, S. and Hardy, G. (2010) Sequencing the Phytophthora cinnamomi genome - update. In: 5th IUFRO Phytophthora Diseases in Forests and Natural Ecosystems, 7 - 12 March, Auckland and Rotorua, New Zealand.

Reeve, W.G., Chain, P., O'Hara, G.W., Ardley, J.K., Nandasena, K.G., Bräu, L., Tiwari, R., Malfatti, S., Kiss, H., Lapidus, A., Copeland, A., Nolan, M., Land, M., Hauser, L., Chang, Y-J, Ivanova, N., Mavromatis, K., Markowitz, V., Kyrpides, N, Gollagher, Margaret, Yates, R.J., Dilworth, M.J. and Howieson, J.G. (2010) Complete genome sequence of the Medicago microsymbiont Ensifer (Sinorhizobium) medicae strain WSM419. Standards in Genomic Sciences, 2 (1). pp. 77-86.

Reeve, W.G., O'Hara, G.W., Chain, P., Ardley, J.K., Bräu, L., Nandasena, K.G., Tiwari, R., Copeland, A., Nolan, M., Han, Cliff, Brettin, T., Land, M., Ovchinikova, G., Ivanova, N., Mavromatis, K., Markowitz, V., Kyrpides, N., Melino, V., Denton, M., Yates, R.J. and Howieson, J. (2010) Complete genome sequence of Rhizobium leguminosarum bv. trifolii strain WSM1325, an effective microsymbiont of annual Mediterranean clovers. Standards in Genomic Sciences, 2 (3). pp. 347-356.

Reeve, W.G., O'Hara, G.W., Chain, P., Ardley, J.K., Bräu, L., Nandasena, K.G., Tiwari, R., Malfatti, S., Kiss, H., Lapidus, A., Copeland, A., Nolan, M., Land, M., Ivanova, N., Mavromatis, K., Markowitz, V., Kyrpides, N, Melino, V., Denton, M., Yates, R.J. and Howieson, J.G. (2010) Complete genome sequence of Rhizobium leguminosarum bv trifolii strain WSM2304, an effective microsymbiont of the South American clover Trifolium polymorphum. Standards in Genomic Sciences, 2 (1). pp. 66-76.

2009

Ardley, J.K., O'Hara, G.W., Reeve, W.G., Yates, R.J., Dilworth, M.J. and Howieson, J.G. (2009) Highly Specific hosts in the Listia section of the Legume Genus Lotononis are nodulated by Methylobacteria and by novel isolates that are a new genus of root nodule bacteria. In: The 16th International Congress of Nitrogen Fixation, 14 - 19 June, Big Sky, Montana.

Ardley, J.K., O'Hara, G.W., Reeve, W.G., Yates, R.J., Dilworth, M.J., Tiwari, R.P. and Howieson, J.G. (2009) Root nodule bacteria isolated from South African Lotononis bainesii, L. listii and L. solitudinis are species of Methylobacterium that are unable to utilize methanol. Archives of Microbiology, 191 (4). pp. 311-318.

Ardley, J.K., Parker, M.A., De Meyer, S., O'Hara, G.W., Reeve, W.G., Yates, R.J., Dilworth, M.J., Williems, A. and Howieson, J.G. (2009) Nodulation and specificity in the legume genus Lotononis and description of novel Lotononis angolensis isolates. In: 15th Australian Nitrogen Fixation Conference, 8 - 13 November, Margaret River, Western Australia.

Bräu, L., Goodwin, L., O'Hara, G.W., Tiwari, R., Howieson, J., Yates, R.J. and Reeve, W. (2009) Mining the sequence data of Rhizobium Leguminosarum BV Trifolii WSM1325 and WM2304. In: The 16th International Congress of Nitrogen Fixation, 14 - 19 June, Big Sky, Montana.

Fenner, B., Reeve, W.G., Dilworth, M.J., Glenn, A.R. and Tiwari, R. (2009) Coordinated control of Terminal Oxidase Expression in Sinorhizobium by the ACTS-ACTR two-componenet signal transduction system. In: The 16th International Congress of Nitrogen Fixation, 14 - 19 June, Big Sky, Montana.

Garau, G., Yates, R.J., Deiana, P. and Howieson, J.G. (2009) Novel strains of nodulating Burkholderia have a role in nitrogen fixation with papilionoid herbaceous legumes adapted to acid, infertile soils. Soil Biology and Biochemistry, 41 (1). pp. 125-134.

Gehlot, H.S., Shekhawat, N.S., Tiwari, R., O'Hara, G., Howieson, J. and Sprent, J. (2009) Diversity in native legumes of the Indian Thar Desert and a look into Socio-economic aspect. In: 15th Australian Nitrogen Fixation Conference, 8 - 13 November, Margaret River, Western Australia.

Howieson, J., O'Hara, G.W., Yates, R.J., Garau, G., Ratnayake, S., Ardley, J.K., van Wyk, B-E and Pariot, B. (2009) Burkholderia, Methylobacteria and other lesser exploited RNB as commercial inoculants in temperate agriculture on poor soils. In: The 16th International Congress of Nitrogen Fixation, 14 - 19 June, Big Sky, Montana.

Lee, W.G., Reeve, W.G., O'Hara, G.W. and Tiwari, R.P. (2009) Discerning the roles and relationships of EPS and the stringent response. In: The 16th International Congress of Nitrogen Fixation, 14 - 19 June, Big Sky, Montana.

Melino, V.J., Soole, K.L. and Ford, C.M. (2009) Ascorbate metabolism and the developmental demand for tartaric and oxalic acids in ripening grape berries. BMC Plant Biology, 9 (1). p. 145.

Nandasena, K.G., O'Hara, G.W., Reeve, W., Tiwari, R. and Howieson, J.G. (2009) Selfish Islands and converging plasmids - new insights into evolution of root nodule bacteria. In: 15th Australian Nitrogen Fixation Conference, 8 - 13 November, Margaret River, Western Australia.

Nandasena, K.G., O'Hara, G.W., Tiwari, R.P. and Howieson, J.G. (2009) A basis for the development of an inferior N2 fixation phenotype in root nodule bacteria following lateral transfer of symbiotic genes. In: The 16th International Congress of Nitrogen Fixation, 14 - 19 June, Big Sky, Montana.

Nandasena, K.G. and O'Hara, G.W. (2009) New understandings in microbial (bacterial) evolution - A review. Journal of the Royal Society of Western Australia, 92 (4). pp. 453-459.

Nandasena, K.G., O'Hara, G.W., Tiwari, R.P., Willems, A. and Howieson, J.G. (2009) Mesorhizobium australicum sp. nov. and Mesorhizobium opportunistum sp. nov., isolated from Biserrula pelecinus L. in Australia. International Journal of Systematic and Evolutionary Microbiology, 59 (9). pp. 2140-2147.

Osman, W.A.M., Tian, R., Tiwari, R., Bräu, L. and Reeve, W. (2009) The regulation of the acid inducible LPIA (Low pH inducible) gene and its importance in the adaptive acid tolerance response of Sinorhizobium medicae WSM419. In: 15th Australian Nitrogen Fixation Conference, 8 - 13 November, Margaret River, Western Australia.

Poonar, N., Tak, N., Parihar, R., Rathore, M.S., Fox, S.L., Swift, R., Gehlot, H.S., Bräu, L., O'Hara, G., Tiwari, R. and Howieson, J. (2009) Screening of root nodule endophytes isolated from native legumes of arid regions of India for their multiple PGP traits. In: 15th Australian Nitrogen Fixation Conference, 8 - 13 November, Margaret River, Western Australia.

Tak, N., Gehlot, H.S., Ardley, J.K., Rathore, M.S., Tripathy, A.K., Shekhawat, N.S., Tiwari, R., Reeve, W., Sprent, J.I. and Howieson, J. (2009) Endophytic bacterial diversity in root nodules of native legumes from Indian Thar Desert. In: 15th Australian Nitrogen Fixation Conference, 8 - 13 November, Margaret River, Western Australia.

Terpolilli, J.J., Reeve, W.G., Bräu, L., Tiwari, R.P., Dilworth, M.J., Howieson, J.G. and O'Hara, G.W. (2009) Role of EXPR and Expolysaccharide production in N2 fixation in the Medicago-Sinorhizobium Symbiosis. In: The 16th International Congress of Nitrogen Fixation, 14 - 19 June, Big Sky, Montana.

Tian, R., Tiwari, R., Bräu, L. and Reeve, W. (2009) Characterisation of the regulatory circuit required for the acid induction of the adaptive acid tolerance response Protein LPIA in Sinorhizobium Medicae WSM419. In: The 16th International Congress of Nitrogen Fixation, 14 - 19 June, Big Sky, Montana.

Tiwari, R.P., Bräu, L., O'Hara, G., Howieson, J.G. and Reeve, W.G. (2009) Acid-adaption by a medic microsymbiont: new insights from the genome of Sinorhizobium medicae WSM419. In: 15th Australian Nitrogen Fixation Conference, 8 - 13 November, Margaret River, Western Australia.

2008

Ardley, J.K., Yates, R.J., Nandasena, K.G., Reeve, W.G., Law, I.J., Bräu, L., O'Hara, G.W. and Howieson, J.G. (2008) A new look at old root-nodule bacteria – molecular techniques uncover novel isolates. In: 15th International Nitrogen Fixation Congress and the 12th International Conference of the African Association for Biological Nitrogen Fixation, 21 - 26 January 2007, Cape Town, South Africa.

Bräu, L., Goodwin, L.A., O'Hara, G.W., Tiwari, R., Howieson, J.G., Yates, R.J. and Reeve, W.G. (2008) Genome features of an annual and a perennial clover microsymbiont. In: 8th European Nitrogen Fixation Conference, 30 August - 3 September, Gent.

Langer, H., Nandasena, K.G., Howieson, J.G., Jorquera, M. and Borie, F. (2008) Genetic diversity of Sinorhizobium meliloti associated with alfalfa in Chilean volcanic soils and their symbiotic effectiveness under acidic conditions. World Journal of Microbiology and Biotechnology, 24 (3). pp. 301-308.

Nandasena, K.G., O'Hara, G.W., Tiwari, R.P. and Howieson, J.G. (2008) Gene transfer in the environment promotes the rapid evolution of a diversity of suboptimal and competitive rhizobia for Biserrula pelecinus L. In: Dakora, F.D., Chimphango, S.B. M., Valentine, A.J., Elmerich, C. and Newton, W.E., (eds.) Biological nitrogen fixation: towards poverty alleviation through sustainable agriculture. Springer, New York, pp. 63-64.

Reeve, W.G., Chain, P., Tiwari, R., O'Hara, G.W., Howieson, J.G. and Bräu, L. (2008) The Sinorhizobium medicae WSM419 genome sequencing project. In: 8th European Nitrogen Fixation Conference, 30 August - 3 September, Gent.

Terpolilli, J.J., Tiwari, R.P., Dilworth, M.J., O'Hara, G.W. and Howieson, J.G. (2008) Investigating Nitrogen Fixation in the Medicago-sinorhizobium Symbiosis. In: Dakora, F.D., Chimphango, S.B. M, Valentine, A.J., Elmerich, C. and Newton, W.E., (eds.) Biological Nitrogen Fixation: Towards Poverty Alleviation through Sustainable Agriculture. Springer, New York, p. 145.

Terpolilli, J.J., O'Hara, G.W., Tiwari, R.P., Dilworth, M.J. and Howieson, J.G. (2008) The model legume Medicago truncatula A17 is poorly matched for N2fixation with the sequenced microsymbiont Sinorhizobium meliloti 1021. New Phytologist, 179 (1). pp. 62-66.

Yates, R.J., Howieson, J.G., Reeve, W.G., Bräu, L., Speijers, J., Nandasena, K., Real, D., Sezmiş, E. and O’Hara, G.W. (2008) Host–strain mediated selection for an effective nitrogen-fixing symbiosis between Trifolium spp. and Rhizobium leguminosarum biovar trifolii. Soil Biology and Biochemistry, 40 (3). pp. 822-833.

2007

Glenn, A.R., Reeve, W.G., Tiwari, R.P. and Dilworth, M.J. (2007) Acid Tolerance in Root Nodule Bacteria. In: Chadwick, D.J. and Cardew, G., (eds.) Bacterial Responses to pH. J. Wiley & Sons, Chichester, p. 112.

Nandasena, K.G., O'Hara, G.W., Tiwari, R.P., Sezmiş, E. and Howieson, J.G. (2007) In situ lateral transfer of symbiosis islands results in rapid evolution of diverse competitive strains of mesorhizobia suboptimal in symbiotic nitrogen fixation on the pasture legume Biserrula pelecinus L. Environmental Microbiology, 9 (10). p. 2496.

Nandasena, K.G., O'Hara, G.W., Tiwari, R.P., Willlems, A. and Howieson, J.G. (2007) Mesorhizobium ciceri biovar biserrulae, a novel biovar nodulating the pasture legume Biserrula pelecinus L. International Journal of Systematic and Evolutionary Microbiology, 57 (5). pp. 1041-1045.

Nichols, P.G.H., Loi, A., Nutt, B.J., Evans, P.M., Craig, A.D., Pengelly, B.C., Dear, B.S., Lloyd, D.L., Revell, C.K., Nair, R.M., Ewing, M.A., Howieson, J.G., Auricht, G.A., Howie, J.H., Sandral, G.A., Carr, S.J., de Koning, C.T., Hackney, B.F., Crocker, G.J., Snowball, R., Hughes, S.J., Hall, E.J., Foster, K.J., Skinner, P.W., Barbetti, M.J. and You, M.P. (2007) New annual and short-lived perennial pasture legumes for Australian agriculture—15 years of revolution. Field Crops Research, 104 (1-3). pp. 10-23.

Tiwari, R.P., Nandasena, K.G., Dilworth, M.J., Law, I.J., Howieson, J.G., O'Hara, G.W., Ardley, J.K. and Yates, R.J. (2007) Unique root-nodule bacteria isolated from Southern African legumes. In: 15th International Nitrogen Fixation Congress and the 12th International Conference of the African Association for Biological Nitrogen Fixation, 21 - 26 January 2007, Cape Town, South Africa.

Yates, R.J., Howieson, J.G., Reeve, W.G., Nandasena, K.G., Law, I., Bräu, L., Ardley, J.K., Nistelberger, H.M., Real, D. and O'Hara, G.W. (2007) Lotononis angolensis forms nitrogen fixing, lupinoid nodules with phylogenetically unique, fast-growing, pink-pigmented bacteria, which do not nodulate L. bainesii or L. listii. Soil Biology and Biochemistry, 39 (7). pp. 1680-1688.

2006

Nandasena, K.G., O'Hara, G.W., Tiwari, R.P. and Howieson, J.G. (2006) Rapid in situ evolution of nodulating strains for Biserrula pelecinus L. through lateral transfer of a Symbiosis Island from the original Mesorhizobial Inoculant. Applied and Environmental Microbiology, 72 (11). pp. 7365-7367.

Reeve, W.G., Bräu, L., Castelli, J., Garau, G., Sohlenkamp, C., Geiger, O., Dilworth, M.J., Glenn, A.R., Howieson, J.G. and Tiwari, R.P. (2006) The Sinorhizobium medicae WSM419 lpiA gene is transcriptionally activated by FsrR and required to enhance survival in lethal acid conditions. Microbiology, 152 (10). pp. 3049-3059.

2005

Ardley, J.K., Yates, R.J., Howieson, J.G., Nandasena, K.G., O'Hara, G.W. and Tiwari, R.P. (2005) Characterisation of root-nodule bacteria isolated from perennial Southern African species of Lotononis. In: 14th Australian nitrogen fixation conference, 21 - 25 November, Katoomba, Australia.

Bräu, L., Swift, R., O'Hara, G., Hardy, G. and Howieson, J. (2005) Development of plant growth promoting rhizosphere organisms to enhance productivity of cereals and legumes in dry-land farming in South Australia. In: 14th Australian nitrogen fixation conference, 21 - 25 November, Katoomba, Australia.

Garau, G., Reeve, W.G., Bräu, L., Deiana, P., Yates, R.J., James, D.L., Tiwari, R., O'Hara, G.W. and Howieson, J.G. (2005) The Symbiotic Requirements of Different Medicago Spp. Suggest the Evolution of Sinorhizobium Meliloti and S. Medicae with Hosts Differentially Adapted to Soil pH. Plant and Soil, 276 (1-2). pp. 263-277.

Gunn, A., O'Hara, G.W. and Tiwari, R. (2005) Investigating quorum sensing in Sinorhizobium medicae WSM419. In: 14th Australian nitrogen fixation conference, 21 - 25 November, Katoomba, Australia.

Mhamdi, R., Mrabet, M., Laguerre, G., Tiwari, R. and Aouani, M.E. (2005) Colonization of Phaseolus vulgaris nodules by Agrobacterium -like strains. Canadian Journal of Microbiology, 51 (2). pp. 105-111.

Mrabet, M., Mhamdi, R., Tajini, F, Tiwari, R., Trabelsi, M. and Aouani, M.E. (2005) Competitiveness and symbiotic effectiveness of a R. gallicum strain isolated from root nodules of Phaseolus vulgaris. European Journal of Agronomy, 22 (2). pp. 209-216.

Nandasena, K.G., Tiwari, R.P., O'Hara, G.W. and Howieson, J.G. (2005) Why is it necessary to manage the in situ development of poorly effective promiscuous rhizobia. In: 14th Australian nitrogen fixation conference, 21 - 25 November, Katoomba, Australia.

Stepkowski, T., Moulin, L., Krzyzanska, A., McInnes, A., Law, I.J. and Howieson, J. (2005) European origin of bradyrhizobium populations infecting lupins and serradella in soils of Western Australia and South Africa. Applied and Environmental Microbiology, 71 (11). pp. 7041-7052.

Swift, R., McComb, J., Hardy, G., El-Tarabily, K. and Bräu, L. (2005) Methods for isolation of plant growth promoting rhizo-bacteria (PGPR) from Western Australian soils. In: 14th Australian nitrogen fixation conference, 21 - 25 November, Katoomba, Australia.

2004

Fenner, B.J., Tiwari, R.P., Reeve, W.G., Dilworth, M.J. and Glenn, A.R. (2004) Sinorhizobium medicae genes whose regulation involves the ActS and/or ActR signal transduction proteins. FEMS Microbiology Letters, 236 (1). pp. 21-31.

Nandasena, K.G., O'Hara, G.W., Tiwari, R.P., Yates, R.J., Kishinevsky, B.D. and Howieson, J.G. (2004) Symbiotic relationships and root nodule ultrastructure of the pasture legume Biserrula pelecinus L.- a new legume in agriculture. Soil Biology and Biochemistry, 36 (8). pp. 1309-1317.

Reeve, W.G., Tiwari, R.P., Guerreiro, N., Stubbs, J., Dilworth, M.J., Glenn, A.R., Rolfe, B.G., Djordjevic, M.A. and Howieson, J.G. (2004) Probing for pH-regulated proteins in Sinorhizobium medicae using proteomic analysis. Journal of Molecular Microbiology and Biotechnology, 7 (3). pp. 140-147.

Tiwari, R.P., Reeve, W.G., Fenner, B.J., Dilworth, M.J., Glenn, A.R. and Howieson, J.G. (2004) Probing for pH-regulated senes in Sinorhizobium medicae using transcriptional analysis. Journal of Molecular Microbiology and Biotechnology, 7 (3). pp. 133-139.

2002

Dilworth, M.J., Reeve, W.G., Tiwari, R.P. and Vivas-Marfisi, A.I. (2002) Understanding acid tolerance in root nodule bacteria. In: 3th International Congress on Nitrogen Fixation, July, 2001, Ontario.

Lyons, T.J. (2002) Clouds prefer native vegetation. Meteorology and Atmospheric Physics, 80 (1-4). pp. 131-140.

Reeve, W.G., Tiwari, R.P., Kale, N.B., Dilworth, M.J. and Glenn, A.R. (2002) ActP controls copper homeostasis in Rhizobium leguminosarum bv. viciae and Sinorhizobium meliloti preventing low pH-induced copper toxicity. Molecular Microbiology, 43 (4). pp. 981-991.

Tiwari, R.P., Reeve, W.G., Dilworth, M.J. and Glenn, A.R. (2002) Genetic circuits involved in the response of root nodule bacteria to Low pH. In: 12th International Congress on Nitrogen Fixation, 12 - 17 September, 1999, Foz do Iguacu, Parana, Brazil.

2001

Dilworth, M.J., Howieson, J.G., Reeve, W.G., Tiwari, R.P. and Glenn, A.R. (2001) Acid tolerance in legume root nodule bacteria and selecting for it. Australian Journal of Experimental Agriculture, 41 (3). pp. 435-446.

Nandasena, K.G., O'Hara, G.W., Tiwari, R.P., Yates, R.J. and Howieson, J.G. (2001) Phylogenetic relationships of three bacterial strains isolated from the pasture legume Biserrula pelecinus L. International Journal of Systematic and Evolutionary Microbiology, 51 (6). pp. 1983-1986.

2000

Dilworth, M.J., Tiwari, R.P., Reeve, W.G. and Glenn, A.R. (2000) Legume root nodule bacteria and acid pH. Science Progress, 83 (4). pp. 357-389.

1999

Reeve, W.G., Tiwari, R.P., Worsley, P.S., Dilworth, M.J., Glenn, A.R. and Howieson, J.G. (1999) Constructs for insertional mutagenesis, transcriptional signal localization and gene regulation studies in root nodule and other bacteria. Microbiology, 145 (6). pp. 1307-1316.

1998

Glenn, A.R., Reeve, W.G., Tiwari, R.P. and Dilworth, M.J. (1998) Rhizobial genes essential for acid tolerance. In: 11th International Congress on Nitrogen Fixation, 20 - 25 July, 1997, Paris.

Reeve, W.G., Tiwari, R.P., Wong, C.M., Dilworth, M.J. and Glenn, A.R. (1998) The transcriptional regulator gene phrR in Sinorhizobium meliloti WSM419 is regulated by low pH and other stresses. Microbiology, 144 (12). pp. 3335-3342.

1997

Glenn, A.R., Tiwari, R.P., Reeve, W.G. and Dilworth, M.J. (1997) The response of root nodule bacteria to acid stress. In: Moniz, A.C., Furlani, A. M. C., Schaffert, R. E., Fageria, N. K., Rosolen, C. A. and Cantarella, H., (eds.) Plant-soil interactions at low pH: sustainable agriculture and forestry production. Brazilian Soil Science Society., Campinas, Brazil, pp. 123-138.

Pountney, D.L., Tiwari, R.P. and Egan, J.B. (1997) Metal- and DNA-binding properties and mutational analysis of the transcription activating factor, B, of coliphage 186: A prokaryotic C4 zinc- finger protein. Protein Science, 6 (4). pp. 892-902.

Reeve, W.G., Dilworth, M.J., Tiwari, R.P. and Glenn, A.R. (1997) Regulation of exopolysaccharide production in Rhizobium leguminosarum biovar viciae WSM710 involves exoR. Microbiology, 143 (6). pp. 1951-1958.

Reeve, W.G., Tiwari, R.P., Dilworth, M.J. and Glenn, A.R. (1997) A helicase gene (helO) in Rhizobium meliloti WSM419. FEMS Microbiology Letters, 153 (1). pp. 43-49.

1996

Tiwari, R.P., Reeve, W.G., Dilworth, M.J. and Glenn, A.R. (1996) Acid tolerance in Rhizobium meliloti strain WSM419 involves a two-component sensor-regulator system. Microbiology, 142 (7). pp. 1693-1704.

Tiwari, R.P., Reeve, W.G., Dilworth, M.J. and Glenn, A.R. (1996) An Essential Role for actA in Acid Tolerance of Rhizobium Melilotix. Microbiology, 142 (3). pp. 601-610.

1993

Reeve, W.G., Tiwari, R.P., Dilworth, M.J. and Glenn, A.R. (1993) Calcium affects the growth and survival of rhizobium meliloti. Soil Biology and Biochemistry, 25 (5). p. 581.

1992

Tiwari, R.P., Reeve, W.G. and Glenn, A.R. (1992) Mutations conferring acid sensitivity in the acid-tolerant strains Rhizobium meliloti WSM419 and Rhizobium leguminosarum biovar viciae WSM710. FEMS Microbiology Letters, 100 (1-3). p. 107.