The effect of simulated acid rain on growth of root systems of Scindapsus aureus

  • Thomas V. El-Mallakh Department of Psychiatry and Behavioral Sciences, University of Louisville School of Medicine, KY, United States.
  • Yonglin Gao Department of Psychiatry and Behavioral Sciences, University of Louisville School of Medicine, KY, United States.
  • Rif S. El-Mallakh | rselma01@louisville.edu Department of Psychiatry and Behavioral Sciences, University of Louisville School of Medicine, KY, United States.

Abstract

The effect of acid rain on root systems has not been adequately studied. This study examined the effect of simulated acid rain on the root systems of a common tropical vine. Cuttings (10 cm) of Scindapsus aureus were grown for 7 weeks without soil in deionized water in which the pH was adjusted with sulfuric acid to 2.25, 3.26, 4.4, 5.5, and 6.5 (no acid added). Tap water (pH=8.1) was also examined. Root number and total root length were measured at baseline and after 7 weeks. Stock water at the initial pH was used to maintain the water level weekly. There were no differences in either root number or root length in any of plants in pH 4.4 or greater. Plants at the two lowest pH settings did not produce significant roots. Healthy plants (pH≥4.4) acidified the water’s pH in which they were growing to 4.4-5.4. The pH of plants in more acidic pH remained unchanged. Some roots prefer a more acidic pH. If this is characteristic is widespread, the effect of acid rain on plant root systems may be less severe than anticipated.

Dimensions

Altmetric

PlumX Metrics

Downloads

Download data is not yet available.
Published
2014-06-17
Info
Issue
Section
Articles
Keywords:
acid rain, roots, Scindapsus aureus, sulfuric acid
Statistics
  • Abstract views: 7817

  • PDF: 1864
  • HTML: 2492
How to Cite
El-Mallakh, T. V., Gao, Y., & El-Mallakh, R. S. (2014). The effect of simulated acid rain on growth of root systems of Scindapsus aureus. International Journal of Plant Biology, 5(1). https://doi.org/10.4081/pb.2014.5187