Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2012 Oct 1;63(17):6149–6159. doi: 10.1093/jxb/ers264

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 2012 The Authors.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.0/uk/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

PMC Copyright notice

Fig. 6. — (Panels A, B) Examples of relationships between capacitance (nF) and the distance (cm) between the plant electrode and the solution surface (panel A) and the fresh mass (mg) of submerged root tissue when roots were raised incrementally out of solution (panel B) (see Fig. 3B left). Data are shown for a whole root system (● ), an excised seminal root (▲), and an excised nodal root (■) from a survey of four whole root systems and 10 individual roots. (Panel C) The relationship between capacitance (C) and the reciprocal of the distance (1/D) between plant electrode and solution surface. The linear regression was forced through the origin and was for the root system C = (186.43±12.02)/D (mean ± SE, n = 11, R ² = 0.949, P < 0.0001), for the seminal root system C = (22.96±1.48)/D (mean ± SE, n = 14, R ² = 0.936, P < 0.0001), and for the nodal root C = (10.82±0.96)/D (mean ± SE, n = 8, R ² = 0.925, P < 0.0001). (Panel D) The relationship between capacitance measured after (C _a) and before (C _b) complete trimming of the submerged root (see Fig. 3B right). The linear regression was C _a = (0.997±0.002) × C _b + (0.323±0.364) (mean ± SE, n = 14, R ² = 1.000). Data are shown for four whole root systems (● ), two excised seminal roots (▲) and eight excised nodal roots (■). Data represent the mean ± SD of three repeated measurements.