Plant and Soil

, Volume 192, Issue 1, pp 23–30

Induction of callose formation is a sensitive marker for genotypic aluminium sensitivity in maize

Authors

  • W.J. Horst
  • A.-K. Püschel
  • N. Schmohl
Article

DOI: 10.1023/A:1004204120863

Cite this article as:
Horst, W., Püschel, A. & Schmohl, N. Plant and Soil (1997) 192: 23. doi:10.1023/A:1004204120863

Abstract

The screening of 37 Zea mays L. cultivars in nutrient solution using root elongation (24 h) as a parameter showed large genotypic differences in Al resistance among the genetic material evaluated.

Callose concentrations in root tips were closely and positively related to Al-induced inhibition of root elongation. Therefore, Al-induced callose formation in root tips appears to be an excellent indicator of Al injury and can be used as a selection criteria for Al sensitivity. In contrast, aluminium concentrations in root tips were not related to Al-induced inhibition of root elongation, nor to Al-induced callose formation. Callose formation was also induced by short-term A1 treatment in root tip protoplasts, and the response of protoplasts clearly reflected the cultivar-specific response to Al of intact roots. This indicates that in maize, Al sensitivity is expressed on the protoplast level.

aluminium callose protoplasts resistance toxicity Zea mays

Copyright information

© Kluwer Academic Publishers 1997