Mathematical Models Light Up Plant Signaling

Chew, Yin Hoon; Smith, Robert W.; Jones, Harriet J.; Seaton, Daniel D; Grima, Ramon; Halliday, Karen

doi:10.1105/tpc.113.120006

Cited by 38 publications

(21 citation statements)

References 170 publications

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“…These pathways include age, photoperiod and light quality, GA, thermosensory (ambient temperature), vernalization, and autonomous pathways (Fornara et al, 2010;Srikanth and Schmid, 2011). In Arabidopsis (Arabidopsis thaliana), it is well documented the noteworthy regulation of the timing of flowering by day length or photoperiod and temperature (for review, see Andrés and Coupland, 2012;Song et al, 2013;Chew et al, 2014;Romera-Branchat * Address correspondence to soraya.pelaz@cragenomica.es. The author responsible for distribution of materials integral to the findings presented in this article in accordance with the policy described in the Instructions for Authors (www.plantphysiol.org) is: Soraya Pelaz (soraya.pelaz@cragenomica.es).…”

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confidence: 99%

SHORT VEGETATIVE PHASE Up-Regulates TEMPRANILLO2 Floral Repressor at Low Ambient Temperatures

et al. 2015

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Plants integrate day length and ambient temperature to determine the optimal timing for developmental transitions. In Arabidopsis (Arabidopsis thaliana), the floral integrator FLOWERING LOCUS T (FT) and its closest homolog TWIN SISTER OF FT promote flowering in response to their activator CONSTANS under long-day inductive conditions. Low ambient temperature (16°C) delays flowering, even under inductive photoperiods, through repression of FT, revealing the importance of floral repressors acting at low temperatures. Previously, we have reported that the floral repressors TEMPRANILLO (TEM; TEM1 and TEM2) control flowering time through direct regulation of FT at 22°C. Here, we show that tem mutants are less sensitive than the wild type to changes in ambient growth temperature, indicating that TEM genes may play a role in floral repression at 16°C. Moreover, we have found that TEM2 directly represses the expression of FT and TWIN SISTER OF FT at 16°C. In addition, the floral repressor SHORT VEGETATIVE PHASE (SVP) directly regulates TEM2 but not TEM1 expression at 16°C. Flowering time analyses of svp tem mutants indicate that TEM may act in the same genetic pathway as SVP to repress flowering at 22°C but that SVP and TEM are partially independent at 16°C. Thus, TEM2 partially mediates the temperature-dependent function of SVP at low temperatures. Taken together, our results indicate that TEM genes are also able to repress flowering at low ambient temperatures under inductive long-day conditions. Plants constantly monitor environmental and endogenous signals to control their growth and adjust developmental responses to daily and seasonal cues (Penfield, 2008). During the juvenile phase, plants are not competent to flower; they are insensitive to inductive environmental factors, such as favorable conditions of day length or temperature. The transition to the adult phase permits reaching the competence to respond to those signals, which is essential to trigger flowering during the reproductive phase (Bergonzi and Albani, 2011;Huijser and Schmid, 2011). Consequently, the control of flowering time is a key determinant of reproductive success and plays an essential role in plant adaptation to seasons and geography.Flowering time is controlled by an intricate network of interdependent genetic pathways that monitor and respond to both endogenous and environmental signals. These pathways include age, photoperiod and light quality, GA, thermosensory (ambient temperature), vernalization, and autonomous pathways (Fornara et al., 2010;Srikanth and Schmid, 2011). In Arabidopsis (Arabidopsis thaliana), it is well documented the noteworthy regulation of the timing of flowering by day length or photoperiod and temperature (for review, see Andrés and Coupland, 2012;Song et al., 2013;Chew et al., 2014;Romera-Branchat * Address correspondence to soraya.pelaz@cragenomica.es. The author responsible for distribution of materials integral to the findings presented in this article in accordance with the policy described in the Instructions f...

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confidence: 99%

SHORT VEGETATIVE PHASE Up-Regulates TEMPRANILLO2 Floral Repressor at Low Ambient Temperatures

et al. 2015

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“…The capture and detection antibodies for pERK do not discriminate between pERK1 and pERK2 (56), and those used for the pAkt ELISA detect both human and mouse pAkt1 (57). The standard proteins were reconstituted in lysate from unstimulated cells at concentrations of 0.1, 1,4,8,10,12,15,20,30, and 40 ng/ml, and the resulting signals were measured using the standard ELISA protocols described above. Lysate from 6 ϫ 10 5 cells stimulated with 4 nM ART for 10 min was included in the same experiments, and the concentration of pERK or pAkt present in these samples was read from the standard curve.…”

Section: Methodsmentioning

confidence: 99%

“…Our quantitative understanding of the activation and signaling mechanisms of cytokine and growth factor (GF) 4 receptors has advanced substantially in recent years (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14). Yet because of the high complexity of the problem, and the often contextdependent behavior of many intracellular signaling events and processes, progress toward a quantitative understanding of how cells orchestrate their response to external stimuli remains in its infancy.…”

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Quantitative Analysis of Receptor Tyrosine Kinase-Effector Coupling at Functionally Relevant Stimulus Levels

Bhave

Chow

et al. 2015

Journal of Biological Chemistry

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“…Modeling studies do not necessarily end at the model development stage. New information can also be generated from analyzing performance and behavior of the model itself [4]. In this article, we present some salient examples of modeling studies in plant systems.…”

Section: Introductionmentioning

confidence: 99%

“…Recent advances in our understanding of plant physiology from the molecular to the whole-plant levels and behavior and functional relationships between multiple elements in the whole system or organism make it possible towards this goal [1]- [3]. The emergence of bioinformatics has facilitated the analysis of complicated networks and assisted in identifying novel components and biological pathways [4]. Mathematical modeling of these pathways helps to generate new hypotheses and experimental designs, improving our understanding of biochemical processes in plants [5] [6].…”

Section: Introductionmentioning

confidence: 99%

A Proposed Systemic Modeling Software for Jujube Fruit Cracking

Hua¹,

Song²,

Li³

et al. 2015

AJPS

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Jujube fruit cracking has become a major concern in jujube production. It can affect fruit quality and yield and crop productivity, resulting in significant economic loss. Recent advances in jujube fruit cracking research provide opportunities to improve our understanding of the impacts of environmental factors and plant physiological metabolism on jujube fruit cracking. In this article, we have developed a novel systemic modeling software for jujube fruit cracking. The potential function and value of this modeling software are presented. Current issues and future research directions in the modeling of jujube fruit cracking system are also discussed. To our knowledge, this is the first functional and/or integrated modeling software developed for the management of jujube fruit cracking.

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Mathematical Models Light Up Plant Signaling

Cited by 38 publications

References 170 publications

SHORT VEGETATIVE PHASE Up-Regulates TEMPRANILLO2 Floral Repressor at Low Ambient Temperatures

SHORT VEGETATIVE PHASE Up-Regulates TEMPRANILLO2 Floral Repressor at Low Ambient Temperatures

Quantitative Analysis of Receptor Tyrosine Kinase-Effector Coupling at Functionally Relevant Stimulus Levels

A Proposed Systemic Modeling Software for Jujube Fruit Cracking

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