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Putrescine depletion affects Arabidopsis root meristem size by modulating auxin and cytokinin signaling and ROS accumulation (2021)
Journal Article
Hashem, A., Moore, S., Chen, S., Hu, C., Zhao, Q., IE Elasawi, I., Feng, Y., Topping, J., Liu, J., Lindsey, K., & Chen, C. (2021). Putrescine depletion affects Arabidopsis root meristem size by modulating auxin and cytokinin signaling and ROS accumulation. International Journal of Molecular Sciences, 22(8), Article 4094. https://doi.org/10.3390/ijms22084094

Polyamines (PAs) dramatically affect root architecture and development, mainly by unknown mechanisms; however, accumulating evidence points to hormone signaling and reactive oxygen species (ROS) as candidate mechanisms. To test this hypothesis, PA le... Read More about Putrescine depletion affects Arabidopsis root meristem size by modulating auxin and cytokinin signaling and ROS accumulation.

The Arabidopsis R-SNARE VAMP714 is essential for polarization of PIN proteins and auxin responses (2021)
Journal Article
Gu, X., Fonseka, K., Agneessens, J., Casson, S., Smertenko, A., Guo, G., Topping, J., Hussey, P., & Lindsey, K. (2021). The Arabidopsis R-SNARE VAMP714 is essential for polarization of PIN proteins and auxin responses. New Phytologist, 230(2), 550-566. https://doi.org/10.1111/nph.17205

The plant hormone auxin and its directional intercellular transport play a major role in diverse aspects of plant growth and development. The establishment of auxin gradients requires the asymmetric distribution of members of the auxin efflux carrier... Read More about The Arabidopsis R-SNARE VAMP714 is essential for polarization of PIN proteins and auxin responses.

Gibberellin signaling mediates lateral root inhibition in response to K+-deprivation (2021)
Journal Article
Hetherington, F., Kakkar, M., Topping, J., & Lindsey, K. (2021). Gibberellin signaling mediates lateral root inhibition in response to K+-deprivation. Plant Physiology, 185(3), 1198-1215. https://doi.org/10.1093/plphys/kiaa093

The potassium ion (K+) is vital for plant growth and development, and K+-deprivation leads to reduced crop yields. Here we describe phenotypic, transcriptomic, and mutant analyses to investigate the signaling mechanisms mediating root architectural c... Read More about Gibberellin signaling mediates lateral root inhibition in response to K+-deprivation.