Sensing, signaLling, and CONTROL of phosphate starvation in plants: molecular players and applications

Scheible, Wolf‐Rüdiger; Rojas-Triana, Mónica

doi:10.1002/9781118958841.ch2

Cited by 26 publications

(39 citation statements)

References 233 publications

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“…Phosphorus plays an important role in plant growth; it is involved in cellular bioenergetics, metabolic regulation, protein synthesis (ribonucleic acids) and structural components (nucleic acids [DNA] and phospholipids; Scheible & Rojas‐Triana, ). The leaf P concentrations of L. hispanicus ssp.…”

Section: Discussionmentioning

confidence: 99%

Sensitivity of different Lupinus species to calcium under a low phosphorus supply

Ding

Clode

Clements

et al. 2018

Plant Cell & Environment

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To study mechanism underpinning the calcifuge habit of some Lupinus species, especially under low-phosphorus (P) conditions, Lupinus species that were likely to respond differently to calcium (Ca) availability were assembled, and the sensitivity to Ca under a low-P supply was assessed. Seven Lupinus species (9 genotypes, L. albus L. cv Kiev, L. albus L. P26766, L. angustifolius L. cv Mandelup, L. angustifolius L. P26723, L. luteus L. cv Pootalong, L. hispanicus ssp. bicolor Boiss. and Reut. P22999, L. pilosus Murr. P27440, L. cosentinii Guss. P27225, and L. atlanticus Gladst. P27219) were grown hydroponically at 10 or 6000 μM Ca. Leaf symptoms, gas exchange and biomass were recorded; leaf and root nutrient concentrations were analysed, and the leaf cell types in which Ca and P accumulated were determined using elemental X-ray microanalyses. Calcium toxicity was demonstrated for L. angustifolius P26723, L. hispanicus ssp. bicolor. P22999, and L. cosentinii P27225, whereas the other species were tolerant of a high Ca supply under low-P conditions. In addition, genotypic differences in Ca toxicity were found within L. angustifolius. Most Ca accumulated in the mesophyll cells in all species, whereas most P was located in epidermal cells.

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Section: Discussionmentioning

confidence: 99%

Sensitivity of different Lupinus species to calcium under a low phosphorus supply

Ding

Clode

Clements

et al. 2018

Plant Cell & Environment

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“…The regulatory networks involved in the sensing and signaling of the phosphate-status involved a large number of molecular player, reviewed in [66]. MPK3 and MPK6 expression is upregulated and MPK3 and MPK6 are activated in response to low phosphate concentrations.…”

Section: Sensing and Signaling Of The Phosphate-statusmentioning

confidence: 99%

Review: Mitogen-Activated Protein Kinases in nutritional signaling in Arabidopsis

et al. 2017

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Mitogen-Activated Protein Kinase (MAPK) cascades are functional modules widespread among eukaryotic organisms. In plants, these modules are encoded by large multigenic families and are involved in many biological processes ranging from stress responses to cellular differentiation and organ development. Furthermore, MAPK pathways are involved in the perception of environmental and physiological modifications. Interestingly, some MAPKs play a role in several signaling networks and could have an integrative function for the response of plants to their environment. In this review, we describe the classification of MAPKs and highlight some of their biochemical actions. We performed an in silico analysis of MAPK gene expression in response to nutrients supporting their involvement in nutritional signaling. While several MAPKs have been identified as players in sugar, nitrogen, phosphate, iron and potassium-related signaling pathways, their biochemical functions are yet mainly unknown. The integration of these regulatory cascades in the current understanding of nutrient signaling is discussed and potential new avenues for approaches toward plants with higher nutrient use efficiencies are evoked.

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“…Under phosphate deficient conditions, systemic and local signaling pathways are activated for the regulation of Pi uptake, assimilation, and redistribution inside the plant (Scheible and Rojas-Triana, 2015). A series of signaling events regulated by different factors take place leading to modulation in root structure architecture/morphology by increasing root hair length as well as lateral root formation to enhance Pi uptake from the external environment ( Table 1 ) (Linkohr et al, 2002; Svistoonoff et al, 2007; Fang et al, 2009; Shukla et al, 2015).…”

Section: Phosphorus (P)mentioning

confidence: 99%

Involvement of Small RNAs in Phosphorus and Sulfur Sensing, Signaling and Stress: Current Update

2017

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Plants require several essential mineral nutrients for their growth and development. These nutrients are required to maintain physiological processes and structural integrity in plants. The root architecture has evolved to absorb nutrients from soil and transport them to other parts of the plant. Nutrient deficiency affects several physiological and biological processes in plants and leads to reduction in crop productivity and yield. To compensate this adversity, plants have developed adaptive mechanisms to enhance the acquisition, conservation, and mobilization of these nutrients under deficient or adverse conditions. In addition, plants have evolved an intricate nexus of complex signaling cascades, which help in nutrient sensing and uptake as well as to maintain nutrient homeostasis. In recent years, small non-coding RNAs such as micro RNAs (miRNAs) and endogenous small interfering RNAs have emerged as important component in regulating plant stress responses. A set of these small RNAs (sRNAs) have been implicated in regulating various processes involved in nutrient uptake, assimilation, and deficiency. In response to phosphorus (P) and sulphur (S) deficiencies, role of sRNAs, miR395 and miR399, have been identified to be instrumental; however, many more miRNAs might be involved in regulating the plant response to these nutrient stresses. These sRNAs modulate expression of target genes in response to P and S deficiencies and regulate their uptake and utilization for proper growth and development of the plant. This review summarizes the current understanding of uptake, sensing, and signaling of P and S and highlights the regulatory role of sRNAs in adaptive responses to these nutrient stresses in plants.

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Sensing, signaLling, and CONTROL of phosphate starvation in plants: molecular players and applications

Cited by 26 publications

References 233 publications

Sensitivity of different Lupinus species to calcium under a low phosphorus supply

Sensitivity of different Lupinus species to calcium under a low phosphorus supply

Review: Mitogen-Activated Protein Kinases in nutritional signaling in Arabidopsis

Involvement of Small RNAs in Phosphorus and Sulfur Sensing, Signaling and Stress: Current Update

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