Differences in anatomy and potential hydraulic conductivity between root and stem of Caesalpinia echinata Lam. (Fabaceae)

Longui, Eduardo Luiz; Romeiro, Diego; Alves, Edenise Segala

doi:10.1590/s2236-89062012000400010

Cited by 4 publications

(3 citation statements)

References 20 publications

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“…This implies that the plant stem and roots do not contribute equally to the electrical circuit of the stem–root–soil continuum. The stronger influence of the stem is probably due to the anatomical differences that exist between the root and the stem (Longui et al., 2012).…”

Section: Methods Targeting Electrical Resistivitymentioning

confidence: 99%

“…They also found that the average resistivity of the roots (10.5 Ωm) was much smaller than that of the stem (108.3 Ωm), which was attributed to the anatomical differences between the root and stem. For example, the vascular tissue is thicker and more developed in stems than in roots (Longui, Romeiro, & Alves, 2012).…”

Section: Methods Targeting Electrical Resistivitymentioning

confidence: 99%

“…For example, the vascular tissue is thicker and more Vadose Zone Journal F I G U R E 4 Root mass density (RMD) vs. electrical resistivity (ρ) of various plant and tree species derived from different studies as described in the legend, r is the correlation coefficient. Digitization of pictorial data done using WebPlotDigitizer (Rohatgi, 2011) developed in stems than in roots (Longui, Romeiro, & Alves, 2012).…”

Section: Ermmentioning

confidence: 99%

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Sensing the electrical properties of roots: A review

Ehosioke

Nguyen

Rao

et al. 2020

Vadose Zone Journal

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Thorough knowledge of root system functioning is essential to understand the feedback loops between plants, soil, and climate. In situ characterization of root systems is challenging due to the inaccessibility of roots and the complexity of root zone processes. Electrical methods have been proposed to overcome these difficulties. Electrical conduction and polarization occur in and around roots, but the mechanisms are not yet fully understood. We review the potential and limitations of low‐frequency electrical techniques for root zone investigation, discuss the mechanisms behind electrical conduction and polarization in the soil–root continuum, and address knowledge gaps. A range of electrical methods for root investigation is available. Reported methods using current injection in the plant stem to assess the extension of the root system lack robustness. Multi‐electrode measurements are increasingly used to quantify root zone processes through soil moisture changes. They often neglect the influence of root biomass on the electrical signal, probably because it is yet to be well understood. Recent research highlights the potential of frequency‐dependent impedance measurements. These methods target both surface and volumetric properties by activating and quantifying polarization mechanisms occurring at the root segment and cell scale at specific frequencies. The spectroscopic approach opens up a range of applications. Nevertheless, understanding electrical signatures at the field scale requires significant understanding of small‐scale polarization and conduction mechanisms. Improved mechanistic soil–root electrical models, validated with small‐scale electrical measurements on root systems, are necessary to make further progress in ramping up the precision and accuracy of multi‐electrode tomographic techniques for root zone investigation.

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Section: Methods Targeting Electrical Resistivitymentioning

confidence: 99%

Section: Methods Targeting Electrical Resistivitymentioning

confidence: 99%

Section: Ermmentioning

confidence: 99%

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Sensing the electrical properties of roots: A review

Ehosioke

Nguyen

Rao

et al. 2020

Vadose Zone Journal

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The Possibility of Using Wood Peeler Core as The Dye-Sensitized Solar Cells

Hamid

Ludin

Safie

2023

Wood Waste Management and Products

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Anatomical characterization and technological properties of Pterogyne nitens wood, a very interesting species of the Brazilian Caatinga biome

Pereira

Júnior

Carvalho

et al. 2021

Sci Rep

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Pterogyne nitens is commonly known in northeastern Brazil as a lesser-known fast-growing species in the Caatinga biome, which is a difficult place for tree development due to the low natural fertility soils and low availability of water. Due to the importance of expanding information about the anatomical wood properties of Caatinga native species, the aim of this work was to characterize the anatomical elements, to macroscopically describe the wood and make inferences about its possible end-uses. Maceration was performed which enabled measuring fiber dimensions, pore frequency and the following technological indexes: cell wall fraction, slenderness ratio, Runkel index and flexibility coefficient. Histological sections enabled describing the arrangements of the cellular elements in different observation sections and to determine the pore diameter. P. nitens wood has anatomical arrangements characterized by confluent axial parenchyma, being diffuse-porous with the presence of tylosis and heterogeneous/stratified rays (biseriate). The fibers were classified as very short (length 0.81 mm), not flexible and Runkel index 0.82. The pores were few in number with a frequency of 32.9 pores/mm2, distributed in a diffuse format and many were obstructed by tylosis. Based on the anatomical results and considering other technological studies, P. nitens wood is most suitable for charcoal production.

show abstract

Differences in anatomy and potential hydraulic conductivity between root and stem of Caesalpinia echinata Lam. (Fabaceae)

Cited by 4 publications

References 20 publications

Sensing the electrical properties of roots: A review

Sensing the electrical properties of roots: A review

The Possibility of Using Wood Peeler Core as The Dye-Sensitized Solar Cells

Anatomical characterization and technological properties of Pterogyne nitens wood, a very interesting species of the Brazilian Caatinga biome

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