World's Best Scientists 2026 revealed!
Graham O’Hara

Graham O’Hara

D-Index & Metrics

Plant Science and Agronomy

D-Index
38
Citations
5183
World Ranking
4428
National Ranking
289

Best Publications

  • Nutritional constraints on root nodule bacteria affecting symbiotic nitrogen fixation: a review.

    G. W. O'Hara

  • Changing roles for legumes in Mediterranean agriculture: developments from an Australian perspective

    J.G. Howieson;J.G. Howieson;G.W. O’Hara;G.W. O’Hara;S.J. Carr

  • Mineral constraints to nitrogen fixation

    Graham W. O'hara;Nantakorn Boonkerd;Michael J. Dilworth

  • 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

    Julie K. Ardley;Matthew A. Parker;Sofie E. De Meyer;Robert D. Trengove

  • Maintenance of Intracellular pH and Acid Tolerance in Rhizobium meliloti.

    Graham W. O'Hara;Thomas J. Goss;Michael J. Dilworth;Andrew R. Glenn

  • 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.

    Kemanthi G. Nandasena;Graham W. O'Hara;Ravi P. Tiwari;Ertuğ Sezmiş

  • The model legume Medicago truncatula A17 is poorly matched for N2 fixation with the sequenced microsymbiont Sinorhizobium meliloti 1021.

    Jason J. Terpolilli;Graham W. O’Hara;Ravi P. Tiwari;Michael J. Dilworth

  • Iron-deficiency specifically limits nodule development in peanut inoculated with Bradyrhizobium sp

    G. W. O'hara;M. J. Dilworth;N. Boonkerd;P. Parkpian

  • Complete genome sequence of the Medicago microsymbiont Ensifer ( Sinorhizobium ) medicae strain WSM419

    Wayne Reeve;Patrick S. G. Chain;Patrick S. G. Chain;Graham O'Hara;Julie Ardley

  • Rapid In Situ Evolution of Nodulating Strains for Biserrula pelecinus L. through Lateral Transfer of a Symbiosis Island from the Original Mesorhizobial Inoculant

    Kemanthi G. Nandasena;Graham W. O'Hara;Ravi P. Tiwari;John G. Howieson

  • Isolation and characterization of rhizosphere bacteria with potential for biological control of weeds in vineyards

    R.D. Flores-Vargas;G.W. O'Hara

  • The adaptive acid tolerance response in root nodule bacteria and Escherichia coli

    Graham W. O'Hara;Andrew R. Glenn

  • Assembly and transfer of tripartite integrative and conjugative genetic elements.

    Timothy L. Haskett;Jason J. Terpolilli;Amanuel Bekuma;Graham W. O’Hara

  • The Symbiotic Requirements of Different Medicago Spp. Suggest the Evolution of Sinorhizobium Meliloti and S. Medicae with Hosts Differentially Adapted to Soil pH

    Giovanni Garau;Wayne G. Reeve;Lambert Brau;Pietrino Deiana

  • Root-nodule bacteria from indigenous legumes in the north-west of Western Australia and their interaction with exotic legumes

    Ron J. Yates;John G. Howieson;Kemanthi G. Nandasena;Graham W. O'Hara

  • Mesorhizobium australicum sp. nov. and Mesorhizobium opportunistum sp. nov., isolated from Biserrula pelecinus L. in Australia

    Kemanthi G. Nandasena;Graham W. O'Hara;Ravi P. Tiwari;Anne Willems

  • Complete genome sequence of Rhizobium leguminosarum bv. trifolii strain WSM1325, an effective microsymbiont of annual Mediterranean clovers

    Wayne Reeve;Graham O’Hara;Patrick Chain;Patrick Chain;Julie Ardley

  • Enhanced nodulation and symbiotic effectiveness of Medicago truncatula when co-inoculated with Pseudomonas fluorescens WSM3457 and Ensifer ( Sinorhizobium ) medicae WSM419

    Sharon Lee Fox;Graham William O’Hara;Lambert Bräu

  • Nodule morphology, symbiotic specificity and association with unusual rhizobia are distinguishing features of the genus Listia within the southern African crotalarioid clade Lotononis s.l.

    Julie K. Ardley;Wayne G. Reeve;Graham W. O'Hara;Ron J. Yates;Ron J. Yates

  • Techniques for the selection and development of elite inoculant strains of Rhizobium leguminosarum in southern Australia

    J.G. Howieson;J. Malden;R.J. Yates;G.W. O'Hara

  • Developing Wheat for Improved Yield and Adaptation Under a Changing Climate: Optimization of a Few Key Genes

    M.A.N. Nazim Ud Dowla;Ian Edwards;Graham O'Hara;Shahidul Islam

  • Inoculating legumes: a practical guide

    E. Drew;D. Herridge;R. Ballard;G. O'Hara

  • Complete genome sequence of Rhizobium leguminosarum bv trifolii strain WSM2304, an effective microsymbiont of the South American clover Trifolium polymorphum.

    Wayne Gerald Reeve;Graham O'Hara;Patrick Chain;Patrick Chain;Julie Ardley

  • The interactions of Rhizobium leguminosarum biovar trifolii in nodulation of annual and perennial Trifolium spp. from diverse centres of origin

    J. G. Howieson;R. J. Yates;G. W. O'Hara;M. Ryder

  • Mesorhizobium ciceri biovar biserrulae, a novel biovar nodulating the pasture legume Biserrula pelecinus L.

    Kemanthi G. Nandasena;Graham W. O'Hara;Ravi P. Tiwari;Anne Willlems

  • The model legume Medicago truncatula A17 is poorly matched for N2fixation with the sequenced microsymbiont Sinorhizobium meliloti 1021

    J.J. Terpolilli;G.W. O'Hara;R.P. Tiwari;M.J. Dilworth

Frequent Co-Authors

John Howieson
John Howieson Murdoch University
Michael J. Dilworth
Michael J. Dilworth Murdoch University
Nikos C. Kyrpides
Nikos C. Kyrpides Joint Genome Institute
Natalia Ivanova
Natalia Ivanova Lawrence Berkeley National Laboratory
Tanja Woyke
Tanja Woyke Joint Genome Institute
Victor Markowitz
Victor Markowitz Lawrence Berkeley National Laboratory
Mariangela Hungria
Mariangela Hungria Brazilian Agricultural Research Corporation
Amrita Pati
Amrita Pati Amgen (United States)
Konstantinos Mavromatis
Konstantinos Mavromatis Bristol-Myers Squibb (Switzerland)
Richard W. Bell
Richard W. Bell Murdoch University

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