L
Luke R. Holtham
Researcher at University of Adelaide
Publications - 6
Citations - 202
Luke R. Holtham is an academic researcher from University of Adelaide. The author has contributed to research in topics: Nitrate transport & Gene. The author has an hindex of 6, co-authored 6 publications receiving 153 citations. Previous affiliations of Luke R. Holtham include Australian Centre for Plant Functional Genomics.
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Journal ArticleDOI
The response of the maize nitrate transport system to nitrogen demand and supply across the lifecycle.
Trevor Garnett,Trevor Garnett,Vanessa M. Conn,Vanessa M. Conn,Darren Plett,Darren Plett,Simon J. Conn,Simon J. Conn,Jürgen Zanghellini,Nenah Mackenzie,Nenah Mackenzie,Akiko Enju,Akiko Enju,Karen Francis,Karen Francis,Luke R. Holtham,Luke R. Holtham,Ute Roessner,Ute Roessner,Berin A. Boughton,Berin A. Boughton,Antony Bacic,Antony Bacic,Neil J. Shirley,Neil J. Shirley,Antoni Rafalski,Kanwarpal S. Dhugga,Mark Tester,Mark Tester,Brent N. Kaiser +29 more
TL;DR: New insight is offered into the control of NO3- uptake by both plant developmental processes and N availability, and key control points that may be targeted by future plant improvement programmes to enhance N uptake relative to availability and/or demand are identified.
Journal ArticleDOI
Nitrate uptake and its regulation in relation to improving nitrogen use efficiency in cereals.
TL;DR: There is an identified need to better understand the No3- uptake system and the signalling molecules that modulate it and new leads for modulating transcription of NO3- transporter genes are needed.
Journal ArticleDOI
Small amounts of ammonium (NH4 ) can increase growth of maize (Zea mays)
Jessey George,Jessey George,Luke R. Holtham,Luke R. Holtham,Kasra Sabermanesh,Kasra Sabermanesh,Sigrid Heuer,Sigrid Heuer,Mark Tester,Mark Tester,Darren Plett,Darren Plett,Trevor Garnett,Trevor Garnett +13 more
TL;DR: In this article, the importance of ammonium for maize growth and nitrogen budget was investigated, using agriculturally relevant concentrations of NH, and it was shown that ammonium supplied in addition to NO can increase growth of maize.
Journal ArticleDOI
Nitrogen assimilation system in maize is regulated by developmental and tissue-specific mechanisms
Darren Plett,Luke R. Holtham,Ute Baumann,Elena Kalashyan,Karen Francis,Akiko Enju,John Toubia,John Toubia,Ute Roessner,Antony Bacic,Antoni Rafalski,Kanwarpal S. Dhugga,Kanwarpal S. Dhugga,Mark Tester,Trevor Garnett,Brent N. Kaiser,Brent N. Kaiser +16 more
TL;DR: Insight is provided into the complexity of the N assimilation system throughout development and candidate regulatory genes, which warrant further investigation in efforts to improve NUE in crop plants are identified.
Journal ArticleDOI
Maize maintains growth in response to decreased nitrate supply through a highly dynamic and developmental stage-specific transcriptional response
Darren Plett,Darren Plett,Ute Baumann,Ute Baumann,Andreas W. Schreiber,Andreas W. Schreiber,Luke R. Holtham,Luke R. Holtham,Elena Kalashyan,Elena Kalashyan,John Toubia,John Toubia,John Nau,Mary Beatty,Antoni Rafalski,Kanwarpal S. Dhugga,Mark Tester,Trevor Garnett,Trevor Garnett,Brent N. Kaiser +19 more
TL;DR: Only a few patterns of differential gene expression were observed over the entire life cycle; however, the composition of the classes of the genes differentially regulated at individual time points was unique, suggesting tightly controlled regulation of NO3--responsive gene expression.