AUXIN BINDING PROTEIN 1: functional and evolutionary aspects

Tromas, Alexandre; Paponov, Ivan A.; Perrot‐Rechenmann, Catherine

doi:10.1016/j.tplants.2010.05.001

Cited by 86 publications

(94 citation statements)

References 81 publications

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“…in cotyledon vasculature (Jacobs and Roe, 2005), which might also be found also in ABP1 downregulated lines (unreferenced comment in Tromas et al, 2010). This evidence, although weak and circumstantial, deserves closer inspection.…”

Section: In and Out: Abp1 Localizationmentioning

confidence: 78%

“…Other, less common types of ER retention signals exist in ABP1 of ferns and gymnosperms (Tromas et al, 2010), whereas ABP1 orthologs from several moss species do not contain a known ER retention motif (Panigrahi et al, 2009), and not all clades of green algae have bona fide ABP1 orthologs (Tromas et al, 2010). Although the functional importance and requirement of ER retention motifs in mosses and algae is unknown, numerous reports from seed plants indeed confirm that the bulk of ABP1 is in the ER lumen (Jones and Herman, 1993;Henderson et al, 1997).…”

Section: In and Out: Abp1 Localizationmentioning

confidence: 99%

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AUXIN BINDING PROTEIN1: The Outsider

2011

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AUXIN BINDING PROTEIN1 (ABP1) is one of the first characterized proteins that bind auxin and has been implied as a receptor for a number of auxin responses. Early studies characterized its auxin binding properties and focused on rapid electrophysiological and cell expansion responses, while subsequent work indicated a role in cell cycle and cell division control. Very recently, ABP1 has been ascribed a role in modulating endocytic events at the plasma membrane and RHO OF PLANTS-mediated cytoskeletal rearrangements during asymmetric cell expansion. The exact molecular function of ABP1 is still unresolved, but its main activity apparently lies in influencing events at the plasma membrane. This review aims to connect the novel findings with the more classical literature on ABP1 and to point out the many open questions that still separate us from a comprehensive model of ABP1 action, almost 40 years after the first reports of its existence.

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Section: In and Out: Abp1 Localizationmentioning

confidence: 78%

Section: In and Out: Abp1 Localizationmentioning

confidence: 99%

AUXIN BINDING PROTEIN1: The Outsider

2011

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“…[9][10][11] Independently of TIR1-mediated auxin perception and/or signaling pathway, ABP1-mediated auxin perception from the extracellular space is required for the plasma membrane (PM) or cytoplasmic responses at nontranscriptional levels. Although the majority of ABP1 was observed to reside in endoplasmic reticulum lumen, a small portion of ABP1 was found to be secreted and to associate with the outer face of the PM, which was proposed to be the major location of auxin perception by ABP1.…”

mentioning

confidence: 99%

Novel ABP1-TMK auxin sensing system controls ROP GTPase-mediated interdigitated cell expansion in Arabidopsis

Chen

Yang

2014

Small GTPases

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“…In this study a molecular investigation was focused on the expression of the PiABP19, Picdc2, and PiSERK3 genes that are known for their involvement in cellular response to auxin (PiABP19) (Tromas et al, 2010), cell cycle regulation (Picdc2) (Malumbre, 2014), and the somatic embryogenesis process (PiSERK3) (Salvo et al, 2014). .…”

Section: Discussionmentioning

confidence: 99%

Molecular investigations of the somatic embryogenesis recalcitrancein the cherry (Prunus cerasus L.) rootstock CAB 6P

Mahmoud¹,

Jedidi²,

Delporte³

et al. 2017

Turk J Biol

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IntroductionSomatic embryogenesis is the process by which somatic cells, under induction conditions, generate embryogenic cells that go through a series of morphological and biochemical changes that result in the formation of somatic embryos (Quiroz-Figueroa et al., 2006). This process is feasible because plants possess cellular totipotency, by which individual somatic cells can regenerate a whole plant (Vasil and Vasil, 1972). The acquisition of embryogenic competence by somatic cells is a complex process that comprises several phases: dedifferentiation, cell reactivation, cell divisions, and various metabolic and developmental reprogramming steps (Ochatt, 2010). The technique of embryogenesis makes an attractive tool not only for mass production but also for crop improvement and genetic transformation (Pérez-Clemente et al., 2004;Quiroz-Figueroa et al., 2006;Namasivayam, 2007). However, the initiation of somatic embryogenesis in plants depends on both extrinsic and intrinsic factors.Among the various extrinsic factors that may induce an embryogenic pathway of development, plant growth regulators, especially auxins, have been known to be implicated in cell cycle regulation, cell division, and differentiation (Del Pozo and Manzano, 2014) as well as in the induction of somatic embryogenesis (Pasternak, 2002). Picloram (4-amino-3,5,6-trichloropicolonic acid), a synthetic auxin, is particularly effective for induction of cell division, proliferation, and further regeneration such as somatic embryogenesis in a range of plant species (Barro et al., 1999;Sanchez-Romero, 2005;Gomes et al., 2006). It acts by inducing auxin sensitivity in nondividing cells that are arrested in G1 (growth phase), enabling them to reenter the S phase (DNA replication) and mitosis (He et al., 2010).Regarding intrinsic factors, genotype is the most determinant in embryogenic competence (Fehér, 2008;Ochatt et al., 2010;Isah, 2016). Various groups, families, and genera are still regarded as recalcitrant to embryogenesis, like Prunus (Druart, 1999). Such recalcitrance has handicapped and delayed the exploitation of biotechnology approaches for breeding in many species and was and still is the subject of research in many laboratories (Ochatt et al., 2010).

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AUXIN BINDING PROTEIN 1: functional and evolutionary aspects

Cited by 86 publications

References 81 publications

AUXIN BINDING PROTEIN1: The Outsider

AUXIN BINDING PROTEIN1: The Outsider

Novel ABP1-TMK auxin sensing system controls ROP GTPase-mediated interdigitated cell expansion in Arabidopsis

Molecular investigations of the somatic embryogenesis recalcitrancein the cherry (Prunus cerasus L.) rootstock CAB 6P

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