Using High-Throughput Phenotyping to Explore Growth Responses to Mycorrhizal Fungi and Zinc in Three Plant Species

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dc.contributor.authorWatts-Fawkes, S.J.
dc.contributor.authorJewell, N.
dc.contributor.authorBrien, C.
dc.contributor.authorBerger, B.
dc.contributor.authorGarnett, T.
dc.contributor.authorCavagnaro, T.R.
dc.date.issued2019
dc.description.abstractThere are many reported benefits to plants of arbuscular mycorrhizal fungi (AMF), including positive plant biomass responses; however, AMF can also induce biomass depressions in plants, and this response receives little attention in the literature. High-throughput phenotyping (HTP) technology permits repeated measures of an individual plant’s aboveground biomass. We examined the effect on AMF inoculation on the shoot biomass of three contrasting plant species: a vegetable crop (tomato), a cereal crop (barley), and a pasture legume (Medicago).We also considered the interaction of mycorrhizal growth responses with plant-available soil zinc (Zn) and phosphorus (P) concentrations. Te appearance of a depression in shoot biomass due to inoculation with AMF occurred at different times for each plant species; depressions appeared earliest in tomato, then Medicago, and then barley. The usually positive-responding Medicago plants were not responsive at the high level of soil available P used. Mycorrhizal growth responsiveness in all three species was also highly interactive with soil Zn supply; tomato growth responded negatively to AMF inoculation in all soil Zn treatments except the toxic soil Zn treatment, where it responded positively. Our results illustrate how context-dependent mycorrhizal growth responses are and the value of HTP approaches to exploring the complexity of mycorrhizal responses.
dc.description.statementofresponsibilityS. J. Watts-Williams, N. Jewell, C. Brien, B. Berger, T. Garnett, and T. R. Cavagnaro
dc.identifier.citationPlant Phenomics, 2019; 2019:5893953-1-5893953-12
dc.identifier.doi10.34133/2019/5893953
dc.identifier.issn2643-6515
dc.identifier.issn2643-6515
dc.identifier.orcidWatts-Fawkes, S.J. [0000-0003-3467-0662]
dc.identifier.orcidBrien, C. [0000-0003-0581-1817]
dc.identifier.orcidBerger, B. [0000-0003-1195-4478]
dc.identifier.orcidGarnett, T. [0000-0003-1664-9659]
dc.identifier.orcidCavagnaro, T.R. [0000-0002-9922-5677]
dc.identifier.urihttps://hdl.handle.net/2440/133683
dc.language.isoen
dc.publisherAmerican Association for the Advancement of Science
dc.relation.granthttp://purl.org/au-research/grants/arc/CE140100008
dc.rightsCopyright © 2019 S. J. Watts-Williams et al. Exclusive Licensee Nanjing Agricultural University. Distributed under a Creative Commons Attribution License (CC BY 4.0).
dc.source.urihttps://doi.org/10.34133/2019/5893953
dc.titleUsing High-Throughput Phenotyping to Explore Growth Responses to Mycorrhizal Fungi and Zinc in Three Plant Species
dc.typeJournal article
pubs.publication-statusPublished

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