Liquid culture system for efficient depletion of the endogenous nutrients in Arabidopsis seedlings

Liu, Yanlin; Xiong, Yan

doi:10.1016/j.xpro.2021.100922

Cited by 4 publications

(1 citation statement)

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“…The innate capacity of autotrophic plants to produce nitrogen‐related nutrients via the nitrogen‐assimilation pathway and the complexity of AA biosynthesis and metabolism makes studying the plant nitrogen–TOR pathway difficult. An efficient liquid inorganic nitrogen depletion system was established to study the underlying mechanism of nitrogen–TOR signaling in the regulation of cell proliferation in the shoot apex (Liu and Xiong, 2021). Depletion of the inorganic nitrogen supply in the growth medium strongly inhibits TOR activity and abolishes cell proliferation in the leaf primordium in Arabidopsis , while transient treatment with 1 mmol/L inorganic nitrate and ammonium mix (standard 1× MS medium containing 59.3 mmol/L nitrate and ammonium) can rapidly (within 5 min) reactivate TOR in the shoot apex, and then promote the proliferation activity of leaf primordia, which acts through pathways that are independent of glucose–energy signaling or hormone signaling pathways.…”

Section: Plant Tor Signaling: Upstream Signals and Regulatorsmentioning

confidence: 99%

Plant target of rapamycin signaling network: Complexes, conservations, and specificities

Liu

Xiong

2022

JIPB

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Target of rapamycin (TOR) is an evolutionarily conserved protein kinase that functions as a central signaling hub to integrate diverse internal and external cues to precisely orchestrate cellular and organismal physiology. During evolution, TOR both maintains the highly conserved TOR complex compositions, and cellular and molecular functions, but also evolves distinctive roles and strategies to modulate cell growth, proliferation, metabolism, survival, and stress responses in eukaryotes. Here, we review recent discoveries on the plant TOR signaling network. We present an overview of plant TOR complexes, analyze the signaling landscape of the plant TOR signaling network from the upstream signals that regulate plant TOR activation to the downstream effectors involved in various biological processes, and compare their conservation and specificities within different biological contexts. Finally, we summarize the impact of dysregulation of TOR signaling on every stage of plant growth and development, from embryogenesis and seedling growth, to flowering and senescence.

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Section: Plant Tor Signaling: Upstream Signals and Regulatorsmentioning

confidence: 99%