Dynamical scaling analysis of plant callus growth

Galeano, Javier; Buceta, Javier; Juarez, K.; Pumariño, B.; Torre, J. de la; Iriondo, José María

doi:10.1209/epl/i2003-00481-1

Cited by 29 publications

(30 citation statements)

References 24 publications

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“…Galeano et al [18] analyzed dynamic scaling of the growth of plant calli (i.e., cultured plant cells). However, to the best of our knowledge, there have been no studies that have reported dynamic scaling at the whole-plant level.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Scaling in the Growth of a Non-Branching Plant, Cardiocrinum cordatum

2012

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We investigated whole-plant leaf area in relation to ontogenetic variation in leaf-size for a forest perennial herb, Cardiocrinum cordatum. The 200-fold ontogenetic variability in C. cordatum leaf area followed a power-law dependence on total leaf number, a measure of developmental stage. When we normalized for plant size, the function describing the size of single leaves along the stem was similar among different-sized plants, implying that the different-sized canopies observed at different times in the growth trajectory were fundamentally similar to each other. We conclude that the growth trajectory of a population of C. cordatum plant leaves obeyed a dynamic scaling law, the first reported for a growth trajectory at the whole-plant level.

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Section: Introductionmentioning

confidence: 99%

Dynamic Scaling in the Growth of a Non-Branching Plant, Cardiocrinum cordatum

2012

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“…We have presented a new dynamic scaling ansatz for the global width function valid for systems whose size is increasing in time. This hypothesis must be used in the case when systems size is increasing in time, for example, in many biological problems like cancer tumors and vegetable callus [15,16].…”

Section: Discussionmentioning

confidence: 99%

New dynamic scaling in increasing systems

Pastor

Galeano

2007

Open Physics

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Abstract:We report a new dynamic scaling ansatz for systems whose system size is increasing with time. We apply this new hypothesis in the Eden model in two geometries. In strip geometry, we impose the system to increase with a power law, L ∼ h a . In increasing linear clusters, if a < 1/z, where z is the dynamic exponent, the correlation length reaches the whole system, and we find two regimes: the first, where the interface fluctuations initially grow with an exponent β = 0.3, and the second, where a crossover comes out and fluctuations evolve asis not a crossover and fluctuations keep on growing in a unique regimen with the same exponent β. In particular, in circular geometry, a = 1, we find this kind of regime and in consequence, a unique regime holds.

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“…This is a matter of interest in processes involved in wound healing or malignant tumor growth [1,2]. One of these procedures is based upon the dynamic scaling analysis (DSA) of colony fronts [3][4][5][6][7][8][9][10][11][12]. In this approach, the two-dimensional (2D) cell colony front dynamics is characterized through a set of dynamic scaling exponents (α, β, z, the roughness, the growth, and the dynamic exponents, respectively) derived from DSA applied to the colony front profiles and by comparing them with those expected from different complex statistical models [13,14].…”

Section: Introductionmentioning

confidence: 99%

Spatio-temporal morphology changes in and quenching effects on the 2D spreading dynamics of cell colonies in both plain and methylcellulose-containing culture media

et al. 2016

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To deal with complex systems, microscopic and global approaches become of particular interest. Our previous results from the dynamics of large cell colonies indicated that their 2D front roughness dynamics is compatible with the standard Kardar-Parisi-Zhang (KPZ) or the quenched KPZ equations either in plain or methylcellulose (MC)-containing gel culture media, respectively. In both cases, the influence of a non-uniform distribution of the colony constituents was significant. These results encouraged us to investigate the overall dynamics of those systems considering the morphology and size, the duplication rate, and the motility of single cells. For this purpose, colonies with different cell populations (N) exhibiting quasi-circular and quasi-linear growth fronts in plain and MC-containing culture media are investigated. For small N, the average radial front velocity and its change with time depend on MC concentration. MC in the medium interferes with cell mitosis, contributes to the local enlargement of cells, and increases the distribution of spatio-temporal cell density heterogeneities. Colony spreading in MC-containing media proceeds under two main quenching effects, I and II; the former mainly depending on the culture medium composition and structure and the latter caused by the distribution of enlarged local cell domains. For large N, colony spreading occurs at constant velocity. The characteristics of cell motility, assessed by measuring their trajectories and the corresponding velocity field, reflect the effect of enlarged, slowmoving cells and the structure of the medium. Local average cell size distribution and individual cell motility data from plain and MC-containing media are qualitatively consistent with the predictions of both the extended cellular Potts models and the observed transition of the front roughness dynamics from a standard KPZ to a quenched KPZ. In this case, quenching J Biol Phys (2016) 42:477-502 DOI 10.1007

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Dynamical scaling analysis of plant callus growth

Cited by 29 publications

References 24 publications

Dynamic Scaling in the Growth of a Non-Branching Plant, Cardiocrinum cordatum

Dynamic Scaling in the Growth of a Non-Branching Plant, Cardiocrinum cordatum

New dynamic scaling in increasing systems

Spatio-temporal morphology changes in and quenching effects on the 2D spreading dynamics of cell colonies in both plain and methylcellulose-containing culture media

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