Computed tomography root architecture

What is root system architecture?
Root architecture is the result of (a) the extension growth of individual root axes, (b) the appearance of daughter roots along root axes, (c) the direction of root axis elongation (notably in response to gravity), (d) the senes- cence or mortality of root axes, and (e) the plasticity of these processes in response to .
What is the function of central root?
Its primary functions are anchorage of the plant, absorption of water and dissolved minerals and conduction of these to the stem, and storage of reserve foods..
What is the purpose of deep root system?
Even though a distinct classification of “deep roots” is missing to date, deep roots provide important functions for individual plants such as nutrient and water uptake but can also shape plant communities by hydraulic lift (HL)..
What is the root architecture?
The architecture of a root system determines its exploration of distinct spatial domains in the soil, as well as its ability to respond dynamically to the localized availabil- ity of soil resources through meristematic activity, and its distribution of resource capture and transport functions (which are highly .
What is the structure of a root?
A root system consists of primary and secondary roots.
Each root is made of dermal, ground, and vascular tissues.
Roots grow in length and width from primary and secondary meristem..
What is the structure of the root system?
The root contains a stele, comprised of the xylem, the phloem, and the pericycle (Smith and De Smet, 2012).
The stele is encircled by concentric layers of epidermal, cortical, and endodermal tissues.
The root apical meristem forms the basic stem cell pool from which other cell types develop..
Why is root architecture important?
The importance of root architecture in plant productivity stems from the fact that many soil resources are unevenly distributed, or are subject to localized depletion, so that the spatial deployment of the root system will in large measure determine the ability of a plant to exploit those resources..
The term “root architecture” refers to the three-dimensional arrangement of the root system, which, along with fine root biomass, affects water and nutrient acquisition capacity, hydraulic conductance, and is responsible for stabilization of trees in the soil (Lynch, 1995).

X-ray CT visualizes roots in the soil using the attenuation differences caused by X-rays between materials. For X-ray CT imaging, signal data from multi-angle projections are used to compute densitometric slice images (reconstructions), which are stacked to construct 3-D densitometric volumes.

X-ray CT enables three-dimensional reconstruction of soil cores to accurately estimate a wide range of features within the soil, including roots, not only examining changes spatially but also temporally.

Computed tomography root architecture

What is root system architecture?

What is the function of central root?

What is the purpose of deep root system?

What is the root architecture?

What is the structure of a root?

What is the structure of the root system?

Why is root architecture important?