Skip to main content

Research Repository

Advanced Search

Dr Alexandra Gibbs' Outputs (44)

Eustress in Space: Opportunities for Plant Stressors Beyond the Earth Ecosystem (2022)
Journal Article
Hessel, V., Liang, S., Tran, N. N., Escribà-Gelonch, M., Zeckovic, O., Knowling, M., Rebrov, E., This, H., Westra, S., Fisk, I., Gilliham, M., & Burgess, A. (2022). Eustress in Space: Opportunities for Plant Stressors Beyond the Earth Ecosystem. Frontiers in Astronomy and Space Sciences, 9, Article 841211. https://doi.org/10.3389/fspas.2022.841211

Human space exploration cannot occur without reliable provision of nutritious and palatable food to sustain physical and mental well-being. This ultimately will depend upon efficient production of food in space, with on-site manufacturing on space st... Read More about Eustress in Space: Opportunities for Plant Stressors Beyond the Earth Ecosystem.

Abiotic stress, acclimation, and adaptation in carbon fixation processes (2022)
Book Chapter
Murchie, E. H., McAusland, L., & Burgess, A. J. (2022). Abiotic stress, acclimation, and adaptation in carbon fixation processes. In A. Ruban, C. H. Foyer, & E. H. Murchie (Eds.), Photosynthesis in Action: Harvesting Light, Generating Electrons, Fixing Carbon (103-132). Academic Press. https://doi.org/10.1016/b978-0-12-823781-6.00011-3

Chloroplast CO2 assimilation rate is highly sensitive to environmental changes, and this has a great influence on productivity. Changes in temperature, light, humidity, nutrients, and salinity can all affect processes that limit photosynthesis. In th... Read More about Abiotic stress, acclimation, and adaptation in carbon fixation processes.

A Deep Learning Method for Fully Automatic Stomatal Morphometry and Maximal Conductance Estimation (2021)
Journal Article
Gibbs, J. A., Mcausland, L., Robles-Zazueta, C. A., Murchie, E. H., & Burgess, A. J. (2021). A Deep Learning Method for Fully Automatic Stomatal Morphometry and Maximal Conductance Estimation. Frontiers in Plant Science, 12, Article 780180. https://doi.org/10.3389/fpls.2021.780180

Stomata are integral to plant performance, enabling the exchange of gases between the atmosphere and the plant. The anatomy of stomata influences conductance properties with the maximal conductance rate, gsmax, calculated from density and size. Howev... Read More about A Deep Learning Method for Fully Automatic Stomatal Morphometry and Maximal Conductance Estimation.

Prospects to improve the nutritional quality of crops (2021)
Journal Article
Scharff, L. B., Saltenis, V. L., Jensen, P. E., Baekelandt, A., Burgess, A. J., Burow, M., Ceriotti, A., Cohan, J. P., Geu-Flores, F., Halkier, B. A., Haslam, R. P., Inzé, D., Klein Lankhorst, R., Murchie, E. H., Napier, J. A., Nacry, P., Parry, M. A., Santino, A., Scarano, A., Sparvoli, F., …Pribil, M. (2022). Prospects to improve the nutritional quality of crops. Food and Energy Security, 11(1), Article e327. https://doi.org/10.1002/fes3.327

A growing world population as well as the need to enhance sustainability and health create challenges for crop breeding. To address these challenges, not only quantitative but also qualitative improvements are needed, especially regarding the macro-... Read More about Prospects to improve the nutritional quality of crops.

The effect of canopy architecture on the patterning of “windflecks” within a wheat canopy (2021)
Journal Article
Burgess, A. J., Durand, M., Retkute, R., Gibbs, J. A., Robson, T. M., & Murchie, E. H. (2021). The effect of canopy architecture on the patterning of “windflecks” within a wheat canopy. Plant, Cell and Environment, 44(11), 3524-3537. https://doi.org/10.1111/pce.14168

Under field conditions, plants are subject to wind-induced movement which creates fluctuations of light intensity and spectral quality reaching the leaves, defined here as windflecks. Within this study, irradiance within two contrasting wheat (Tritic... Read More about The effect of canopy architecture on the patterning of “windflecks” within a wheat canopy.

Interactions between nitrogen nutrition, canopy architecture and photosynthesis in rice, assessed using high-resolution 3D reconstruction (2020)
Journal Article
Burgess, A. J., Herman, T., Ali, A., & Murchie, E. H. (2021). Interactions between nitrogen nutrition, canopy architecture and photosynthesis in rice, assessed using high-resolution 3D reconstruction. in silico Plants, 3(1), Article diaa017. https://doi.org/10.1093/insilicoplants/diaa017

Increasing nitrogen use efficiency is a key target for yield improvement programs. Here we identify features of rice canopy architecture during altered N availability and link them to photosynthetic productivity. Empirical mathematical modelling, hig... Read More about Interactions between nitrogen nutrition, canopy architecture and photosynthesis in rice, assessed using high-resolution 3D reconstruction.

Photoprotective energy dissipation is greater in the lower, not the upper, regions of a rice canopy: A 3D analysis (2020)
Journal Article
Foo, C., Burgess, A., Retkute, R., Tree-Intong, P., Ruban, A., & Murchie, E. (2020). Photoprotective energy dissipation is greater in the lower, not the upper, regions of a rice canopy: A 3D analysis. Journal of Experimental Botany, 71(22), 7382-7392. https://doi.org/10.1093/jxb/eraa411

© 2020 The Author(s) 2020. Published by Oxford University Press on behalf of the Society for Experimental Biology. High light intensities raise photosynthetic and plant growth rates but can cause damage to the photosynthetic machinery. The likelihood... Read More about Photoprotective energy dissipation is greater in the lower, not the upper, regions of a rice canopy: A 3D analysis.

Recovering Wind-induced Plant motion in Dense Field Environments via Deep Learning and Multiple Object Tracking (2019)
Journal Article
Gibbs, J. A., Burgess, A. J., Pound, M. P., Pridmore, T. P., & Murchie, E. H. (2019). Recovering Wind-induced Plant motion in Dense Field Environments via Deep Learning and Multiple Object Tracking. Plant Physiology, 181, 28-42. https://doi.org/10.1104/pp.19.00141

Understanding the relationships between local environmental conditions and plant structure and function is critical for both fundamental science and for improving the performance of crops in field settings. Wind-induced plant motion is important in m... Read More about Recovering Wind-induced Plant motion in Dense Field Environments via Deep Learning and Multiple Object Tracking.

A canopy conundrum: can wind-induced movement help to increase crop productivity by relieving photosynthetic limitations? (2019)
Journal Article
Burgess, A. J., Gibbs, J. A., & Murchie, E. H. (2019). A canopy conundrum: can wind-induced movement help to increase crop productivity by relieving photosynthetic limitations?. Journal of Experimental Botany, 70(9), 2371-2380. https://doi.org/10.1093/jxb/ery424

Wind-induced movement is a ubiquitous occurrence for all plants grown in natural or agricultural settings and in the context of high, damaging wind speeds it has been well studied. However, the impact of lower wind speeds (that do not cause any damag... Read More about A canopy conundrum: can wind-induced movement help to increase crop productivity by relieving photosynthetic limitations?.

Three-dimensional plant architecture and sunlit-shaded patterns: a stochastic model of light dynamics in canopies (2018)
Journal Article
Retkute, R., Townsend, A. J., Murchie, E. H., Jensen, O. E., & Preston, S. P. (2018). Three-dimensional plant architecture and sunlit-shaded patterns: a stochastic model of light dynamics in canopies. Annals of Botany, 122(2), 291–302. https://doi.org/10.1093/aob/mcy067

Background and Aims Diurnal changes in solar position and intensity combined with the structural complexity of plant architecture result in highly variable and dynamic light patterns within the plant canopy. This affects productivity through the comp... Read More about Three-dimensional plant architecture and sunlit-shaded patterns: a stochastic model of light dynamics in canopies.

Ascorbate-mediated regulation of growth, photoprotection, and photoinhibition in Arabidopsis thaliana (2018)
Journal Article
Plumb, W., Townsend, A. J., Rasool, B., Alomrani, S., Razak, N., Karpinska, B., Ruban, A. V., & Foyer, C. H. (2018). Ascorbate-mediated regulation of growth, photoprotection, and photoinhibition in Arabidopsis thaliana. Journal of Experimental Botany, 69(11), 2823-2835. https://doi.org/10.1093/jxb/ery170

The requirements for ascorbate for growth and photosynthesis were assessed under low (LL; 250 µmol m–2 s–1) or high (HL; 1600 µmol m–2 s–1) irradiance in wild-type Arabidopsis thaliana and two ascorbate synthesis mutants (vtc2-1 and vtc2-4) that have... Read More about Ascorbate-mediated regulation of growth, photoprotection, and photoinhibition in Arabidopsis thaliana.

Three-dimensional plant architecture and sunlit-shaded patterns: a stochastic model of light dynamics in canopies (2018)
Preprint / Working Paper
Retkute, R., Townsend, A. J., Murchie, E. H., Jensen, O. E., & Preston, S. P. Three-dimensional plant architecture and sunlit-shaded patterns: a stochastic model of light dynamics in canopies

Background and Aims Diurnal changes in solar position and intensity combined with the structural complexity of plant architecture result in highly variable and dynamic light patterns within the plant canopy. This affects productivity through the comp... Read More about Three-dimensional plant architecture and sunlit-shaded patterns: a stochastic model of light dynamics in canopies.

Suboptimal acclimation of photosynthesis to light in wheat canopies (2018)
Journal Article
Townsend, A. J., Retkute, R., Chinnathambi, K., Randall, J. W., Foulkes, J. F., Carmo-Silva, E., & Murchie, E. H. (in press). Suboptimal acclimation of photosynthesis to light in wheat canopies. Plant Physiology, 176(2), https://doi.org/10.1104/pp.17.01213

Photosynthetic acclimation (photoacclimation) is the process whereby leaves alter their morphology and/or biochemistry to optimise photosynthetic efficiency and productivity according to long-term changes in the light environment. Three-dimensional (... Read More about Suboptimal acclimation of photosynthesis to light in wheat canopies.

Deep machine learning provides state-of-the-art performance in image-based plant phenotyping (2017)
Journal Article
Pound, M. P., Atkinson, J. A., Townsend, A. J., Wilson, M. H., Griffiths, M., Jackson, A. S., Bulat, A., Tzimiropoulos, G., Wells, D. M., Murchie, E. H., Pridmore, T. P., & French, A. P. (2017). Deep machine learning provides state-of-the-art performance in image-based plant phenotyping. GigaScience, 6(10), Article gix083. https://doi.org/10.1093/gigascience/gix083

© The Author 2017. In plant phenotyping, it has become important to be able to measure many features on large image sets in order to aid genetic discovery. The size of the datasets, now often captured robotically, often precludes manual inspection, h... Read More about Deep machine learning provides state-of-the-art performance in image-based plant phenotyping.

Exploring Relationships between Canopy Architecture, Light Distribution, and Photosynthesis in Contrasting Rice Genotypes Using 3D Canopy Reconstruction (2017)
Journal Article
Burgess, A. J., Retkute, R., Herman, T., & Murchie, E. H. (2017). Exploring Relationships between Canopy Architecture, Light Distribution, and Photosynthesis in Contrasting Rice Genotypes Using 3D Canopy Reconstruction. Frontiers in Plant Science, 8, Article 734. https://doi.org/10.3389/fpls.2017.00734

The arrangement of leaf material is critical in determining the light environment, and subsequently the photosynthetic productivity of complex crop canopies. However, links between specific canopy architectural traits and photosynthetic productivity... Read More about Exploring Relationships between Canopy Architecture, Light Distribution, and Photosynthesis in Contrasting Rice Genotypes Using 3D Canopy Reconstruction.

Image-based 3D canopy reconstruction to determine potential productivity in complex multi-species crop systems (2017)
Journal Article
Burgess, A. J., Retkute, R., Pound, M. P., Mayes, S., & Murchie, E. H. (2017). Image-based 3D canopy reconstruction to determine potential productivity in complex multi-species crop systems. Annals of Botany, 119(4), 517-532. https://doi.org/10.1093/aob/mcw242

Background and Aims: Intercropping systems contain two or more species simultaneously in close proximity. Due to contrasting features of the component crops, quantification of the light environment and photosynthetic productivity is extremely difficu... Read More about Image-based 3D canopy reconstruction to determine potential productivity in complex multi-species crop systems.

Supporting data for "Deep Machine Learning provides state-of-the-art performance in image-based plant phenotyping" (2016)
Data
(2016). Supporting data for "Deep Machine Learning provides state-of-the-art performance in image-based plant phenotyping". [Data]. https://doi.org/10.5524/100343

In plant phenotyping, it has become important to be able to measure many features on large image sets in order to aid genetic discovery. The size of the datasets, now often captured robotically, often precludes manual inspection; hence the motivation... Read More about Supporting data for "Deep Machine Learning provides state-of-the-art performance in image-based plant phenotyping".

The 4-Dimensional Plant: Effects of Wind-Induced Canopy Movement on Light Fluctuations and Photosynthesis (2016)
Journal Article
Burgess, A. J., Retkute, R., Preston, S. P., Jensen, O. E., Pound, M. P., Pridmore, T. P., & Murchie, E. H. (2016). The 4-Dimensional Plant: Effects of Wind-Induced Canopy Movement on Light Fluctuations and Photosynthesis. Frontiers in Plant Science, 7(1392), https://doi.org/10.3389/fpls.2016.01392

Physical perturbation of a plant canopy brought about by wind is a ubiquitous phenomenon and yet its biological importance has often been overlooked. This is partly due to the complexity of the issue at hand: wind-induced movement (or mechanical exci... Read More about The 4-Dimensional Plant: Effects of Wind-Induced Canopy Movement on Light Fluctuations and Photosynthesis.