Comparative phytohormone profiles, lipid kinase and lipid phosphatase activities in barley aleurone, coleoptile, and root tissues

Meringer, María Verónica; Villasuso, Ana Laura; Pasquaré, Susana J.; Giusto, Norma M.; Machado, Estela E.; Racagni, G.

doi:10.1016/j.plaphy.2012.06.013

Cited by 7 publications

(3 citation statements)

References 35 publications

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“…Studies in both DGK and PLD inhibition, using DGK-inhibitors and 1-butanol, suggested that DGK and PLD inhibition could adjust the proline levels in plants during saline and osmotic stress treatments. At the same time, the PA pool generated through DGK activity might be assigned to proline synthesis and accumulation, since DGK inhibitors promptly stop proline accumulation [25,169]. The authors of these studies clearly demonstrated the direct interactions existing between DGK activity and proline accumulation in plants' salt stress responses.…”

Section: Saline and Osmotic Stressesmentioning

confidence: 90%

“…During saline and osmotic stress states, PA is generated by the combined action of PLD and DGK activity, which could also play a fundamental role in proline accumulation [169]. Studies in both DGK and PLD inhibition, using DGK-inhibitors and 1-butanol, suggested that DGK and PLD inhibition could adjust the proline levels in plants during saline and osmotic stress treatments.…”

Section: Saline and Osmotic Stressesmentioning

confidence: 99%

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The Emerging Roles of Diacylglycerol Kinase (DGK) in Plant Stress Tolerance, Growth, and Development

et al. 2020

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Diacylglycerol kinase (DGK) is recognized as the key enzyme of the lipid signaling pathway, which involves the transduction of messages from hormones, neurotransmitters, and immunologic and growth factors. Regarding their essential role in animal physiology, many plant biologists have predicted a similar enzymatic influence in plants. However, a small number of recent studies have revealed the complexity of the involvement of DGK genes in the modulation of plant growth, development, and adaptation in both biotic and abiotic stress conditions. Here, we describe recent discoveries on the role of DGK genes in the plants’ responses to biotic or abiotic stressors. Moreover, we discuss how DGK enzymes regulate plant cellular activities during the adaptation of plants to a readily changing environment. DGK is an enzyme that plays a pivotal role in plant lipid signaling, by catalyzing the phosphorylation of the diacylglycerol (DAG) to phosphatidic acid (PA), which is a crucial molecule in a plant’s metabolic network, leading to its response to various external stresses. DGK enzymes are the principal moderators of PA generation in plant cells; this consequently affects its derived products—hence, enabling their activities in lipid signaling networks and cell homeostasis. Thus, understanding the DGK operational mode and interactions between the production and accumulation of PA would constitute a significant advancement in investigating the mechanism of stress adaptation in plants.

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Section: Saline and Osmotic Stressesmentioning

confidence: 90%

Section: Saline and Osmotic Stressesmentioning

confidence: 99%

The Emerging Roles of Diacylglycerol Kinase (DGK) in Plant Stress Tolerance, Growth, and Development

et al. 2020

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show abstract

“…The supernatant was eliminated, and the pellet was resuspended in 50 mM HEPES (pH 7.4) and used as crude membrane fraction. Protein concentration of samples was measured using Bradford reagent with BSA as standard (Bradford, 1976;Meringer et al, 2012).…”

Section: Preparation Of Membranesmentioning

confidence: 99%

Differential phosphatidic acid metabolism in barley leaves and roots induced by chilling temperature

Margutti

Gaveglio

Reyna

et al. 2018

Plant Physiology and Biochemistry

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Is the PLC pathway involved in the response to phenol treatment in tobacco hairy roots?

Alderete

Racagni

Agostini

et al. 2019

In Vitro Cell.Dev.Biol.-Plant

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Comparative phytohormone profiles, lipid kinase and lipid phosphatase activities in barley aleurone, coleoptile, and root tissues

Cited by 7 publications

References 35 publications

The Emerging Roles of Diacylglycerol Kinase (DGK) in Plant Stress Tolerance, Growth, and Development

The Emerging Roles of Diacylglycerol Kinase (DGK) in Plant Stress Tolerance, Growth, and Development

Differential phosphatidic acid metabolism in barley leaves and roots induced by chilling temperature

Is the PLC pathway involved in the response to phenol treatment in tobacco hairy roots?

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