Research Repository

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Roots branch towards water by post-translational modification of transcription factor ARF7 (2018)
Journal Article
Orosa Puente, B., Leftley, N., Von Wangenheim, D., Banda, J., Anjil, S., Hill, K., …Bennett, M. (2018). Roots branch towards water by post-translational modification of transcription factor ARF7. 00 Journal not listed, 362(6421), 1407-1410. doi:10.1126/science.aau3956

Plants adapt to heterogeneous soil conditions by altering their root architecture. For example, roots branch when in contact with water using the hydropatterning response. We report that hydropatterning is dependent on auxin response factor ARF7. Thi... Read More

SUMO conjugation to the pattern recognition receptor FLS2 triggers intracellular signalling in plant innate immunity (2018)
Journal Article
Orosa, B., Yates, G., Verma, V., Srivastava, A., Srivastava, M., Campanaro, A., …Sadanandom, A. (2018). SUMO conjugation to the pattern recognition receptor FLS2 triggers intracellular signalling in plant innate immunity. Nature Communications, 9, doi:10.1038/s41467-018-07696-8

Detection of conserved microbial patterns by host cell surface pattern recognition receptors (PRRs) activates innate immunity. The FLAGELLIN-SENSITIVE 2 (FLS2) receptor perceives bacterial flagellin and recruits another PRR, BAK1 and the cytoplasmic-... Read More

PYL8 mediates ABA perception in the root through non-cell- autonomous and ligand stabilization based mechanisms (2018)
Journal Article
Belda-Palazon, B., Gonzalez-Garcia, M., Lozano-Juste, J., Coego, A., Antoni, R., Julian, J., …Rodriguez, P. L. (2018). PYL8 mediates ABA perception in the root through non-cell- autonomous and ligand stabilization based mechanisms. Proceedings of the National Academy of Sciences, 115(50), E11857-E11863. doi:10.1073/pnas.1815410115

The phytohormone abscisic acid (ABA) plays a key role regulating root growth, root system architecture, and root adaptive responses, such as hydrotropism. The molecular and cellular mechanisms that regulate the action of core ABA signaling components... Read More

The xerobranching response represses lateral root formation when roots are not in contact with water (2018)
Journal Article
Orman-Ligeza, B., Morris, E. C., Parizot, B., Lavigne, T., Babé, A., Ligeza, A., …Draye, X. (2018). The xerobranching response represses lateral root formation when roots are not in contact with water. Current Biology, 28(19), (3165-3173.e5). doi:10.1016/j.cub.2018.07.074. ISSN 0960-9822

Efficient soil exploration by roots represents an important target for crop improvement and food security [1, 2]. Lateral root (LR) formation is a key trait for optimising soil foraging for crucial resources such as water and nutrients. Here, we repo... Read More

A mechanistic framework for auxin dependent Arabidopsis root hair elongation to low external phosphate (2018)
Journal Article
Bhosale, R., Giri, J., Pandey, B. K., Giehl, R. F., Hartmann, A., Traini, R., …Swarup, R. (in press). A mechanistic framework for auxin dependent Arabidopsis root hair elongation to low external phosphate. Nature Communications, 9(1), doi:10.1038/s41467-018-03851-3

Phosphate (P) is an essential macronutrient for plant growth. Roots employ adaptive mechanisms to forage for P in soil. Root hair elongation is particularly important since P is immobile. Here we report that auxin plays a critical role promoting root... Read More

Rice auxin influx carrier OsAUX1 facilitates root hair elongation in response to low external phosphate (2018)
Journal Article
Giri, J., Bhosale, R., Huang, G., Pandey, B. K., Parker, H., Zappala, S., …Bennett, M. J. (in press). Rice auxin influx carrier OsAUX1 facilitates root hair elongation in response to low external phosphate. Nature Communications, 9(1), doi:10.1038/s41467-018-03850-4

Root traits such as root angle and hair length influence resource acquisition particularly for immobile nutrients like phosphorus (P). Here, we attempted to modify root angle in rice by disrupting the OsAUX1 auxin influx transporter gene in an effort... Read More

AUX1-mediated root hair auxin influx governs SCFTIR1/AFB-type Ca2+ signaling (2018)
Journal Article
Dindas, J., Scherzer, S., Roelfsema, M. R. G., von Meyer, K., Müller, H. M., Al-Rasheid, K., …Hedrich, R. (2018). AUX1-mediated root hair auxin influx governs SCFTIR1/AFB-type Ca2+ signaling. Nature Communications, 9(1), doi:10.1038/s41467-018-03582-5. ISSN 2041-1723

Auxin is a key regulator of plant growth and development, but the causal relationship between hormone transport and root responses remains unresolved. Here we describe auxin uptake, together with early steps in signaling, in Arabidopsis root hairs. U... Read More

Root gravitropism: quantification, challenges, and solutions (2018)
Journal Article
Muller, L., Bennett, M. J., French, A., Wells, D. M., & Swarup, R. (in press). Root gravitropism: quantification, challenges, and solutions. Methods in Molecular Biology, 1761, doi:10.1007/978-1-4939-7747-5_8

Better understanding of root traits such as root angle and root gravitropism will be crucial for development of crops with improved resource use efficiency. This paper describes a high-throughput, automated image analysis method to trace Arabidopsis... Read More

Auxin molecular field maps define AUX1 selectivity: many auxin herbicides are not substrates (2017)
Journal Article
Hoyerova, K., Hosek, P., Quareshy, M., Li, J., Klima, P., Kubes, M., …Napier, R. M. (in press). Auxin molecular field maps define AUX1 selectivity: many auxin herbicides are not substrates. New Phytologist, 217(4), doi:10.1111/nph.14950

Developmental responses to auxin are regulated by facilitated uptake and efflux, but detailed molecular understanding of the carrier proteins is incomplete. We have used pharmacological tools to explore the chemical space that defines substrate prefe... Read More

Adding a piece to the leaf epidermal cell shape puzzle (2017)
Journal Article
von Wangenheim, D., Wells, D. M., & Bennett, M. J. (2017). Adding a piece to the leaf epidermal cell shape puzzle. Developmental Cell, 43(3), doi:10.1016/j.devcel.2017.10.020

The jigsaw puzzle-shaped pavement cells in the leaf epidermis collectively function as a load-bearing tissue that controls organ growth. In this issue of Developmental Cell, Majda et al. (2017) shed light on how the jigsaw shape can arise from locali... Read More

Linear discriminant analysis reveals differences in root architecture in wheat seedlings by nitrogen uptake efficiency (2017)
Journal Article
Kenobi, K., Atkinson, J. A., Wells, D. M., Gaju, O., deSilva, J. G., Foulkes, M. J., …Bennett, M. J. (2017). Linear discriminant analysis reveals differences in root architecture in wheat seedlings by nitrogen uptake efficiency. Journal of Experimental Botany, 68(17), doi:10.1093/jxb/erx300

Root architecture impacts water and nutrient uptake efficiency. Identifying exactly which root architectural properties influence these agronomic traits can prove challenging. In this paper approximately 300 wheat plants were divided into four grou... Read More

Shaping 3D root system architecture (2017)
Journal Article
Morris, E. C., Griffiths, M., Golebiowska, A., Mairhofer, S., Burr-Hersey, J., Goh, T., …Bennett, M. J. (in press). Shaping 3D root system architecture. Current Biology, 27(17), doi:10.1016/j.cub.2017.06.043

Plants are sessile organisms rooted in one place. The soil resources that plants require are often distributed in a highly heterogeneous pattern. To aid foraging, plants have evolved roots whose growth and development are highly responsive to soil si... Read More

Plant phenomics, from sensors to knowledge (2017)
Journal Article
Tardieu, F., Cabrera-Bosquet, L., Pridmore, T. P., & Bennett, M. J. (in press). Plant phenomics, from sensors to knowledge. Current Biology, 27(15), doi:10.1016/j.cub.2017.05.055

Major improvements in crop yield are needed to keep pace with population growth and climate change. While plant breeding efforts have greatly benefited from advances in genomics, profiling the crop phenome (i.e., the structure and function of plants)... Read More

OpenSimRoot: widening the scope and application of root architectural models (2017)
Journal Article
Postma, J. A., Kuppe, C., Owen, M. R., Mellor, N. L., Griffiths, M., Bennett, M. J., …Watt, M. (in press). OpenSimRoot: widening the scope and application of root architectural models. New Phytologist, 215(3), doi:10.1111/nph.14641

Research Conducted and Rationale: OpenSimRoot is an open sourced, functional- structural plant model and mathematical description of root growth and function. We describe OpenSimRoot and its functionality to broaden the benefits of root modeling to t... Read More

A scanner-based rhizobox system enabling the quantification of root system development and response of Brassica rapa seedlings to external P availability (2017)
Journal Article
of root system development and response of Brassica rapa seedlings to external P availability. doi:10.3117/plantroot.11.16

Rhizoboxes are soil-root compartments that may well provide the closest naturalistic conditions for studying root systems architectures (RSAs) in controlled environments. Rhizobox-based studies can however lead to mis-estimation of root traits due to... Read More

Root hydrotropism is controlled via a cortex-specific growth mechanism (2017)
Journal Article
Dietrich, D., Pang, L., Kobayashi, A., Fozard, J. A., Boudolf, V., Bhosale, R., …Bennett, M. J. (in press). Root hydrotropism is controlled via a cortex-specific growth mechanism. Nature Plants, 3, doi:10.1038/nplants.2017.57

Plants can acclimate by using tropisms to link the direction of growth to environmental conditions. Hydrotropism allows roots to forage for water, a process known to depend on abscisic acid (ABA) but whose molecular and cellular basis remains unclear... Read More

Insect haptoelectrical stimulation of Venus flytrap triggers exocytosis in gland cells (2017)
Journal Article
Scherzer, S., Shabala, L., Hedrich, B., Fromm, J., Bauer, H., Munz, E., …Hedrich, R. (in press). Insect haptoelectrical stimulation of Venus flytrap triggers exocytosis in gland cells. Proceedings of the National Academy of Sciences, 114(18), doi:10.1073/pnas.1701860114

The Venus flytrap Dionaea muscipula captures insects and consumes their flesh. Prey contacting touch-sensitive hairs trigger traveling electrical waves. These action potentials (APs) cause rapid closure of the trap and activate secretory functions of... Read More

MtLAX2, a functional homologue of the Arabidopsis auxin influx transporter AUX1, is required for nodule organogenesis (2017)
Journal Article
Roy, S., Robson, F., Lilley, J., Liu, C., Cheng, X., Wen, J., …Murray, J. D. (2017). MtLAX2, a functional homologue of the Arabidopsis auxin influx transporter AUX1, is required for nodule organogenesis. Plant Physiology, 174(1), doi:10.1104/pp.16.01473

Most legume plants can form nodules, specialized lateral organs that form on roots, and house nitrogen-fixing bacteria collectively called rhizobia. The uptake of the phytohormone auxin into cells is known to be crucial for development of lateral roo... Read More

Dynamic regulation of auxin response during rice development revealed by newly established hormone biosensor markers (2017)
Journal Article
Yang, J., Yuan, Z., Meng, Q., Huang, G., Périn, C., Bureau, C., …Zhang, D. (in press). Dynamic regulation of auxin response during rice development revealed by newly established hormone biosensor markers. Frontiers in Plant Science, 8, doi:10.3389/fpls.2017.00256

The hormone auxin is critical for many plant developmental processes. Unlike the model eudicot plant Arabidopsis (Arabidopsis thaliana), auxin distribution and signaling in rice tissues has not been systematically investigated due to the absence of s... Read More