Calcium Distribution in the Abscission Zone of Bean Leaves: Electron Microprobe X-Ray Analysis 1
AUTOR(ES)
Poovaiah, B. W.
RESUMO
The calcium content and distribution across the abscission zones of (2-chloroethyl) phosphonic acid-treated bean (Phaseolus vulgaris L. var. Contender) leaves were lower and not uniformly distributed as compared to the control. Calcium chloride-treated bean leaves had a higher calcium content, with more calcium localized in the potential abscission layer. Ethephon treatment promoted abscission in both debladed and nondebladed plants; there was a corresponding decrease in calcium in the abscission zone just prior to separation. Deblading of bean leaves under a calcium solution increased the calcium level in the abscission zone and delayed abscission.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=366573Documentos Relacionados
- Elemental composition of bacterial metachromatic inclusions determined by electron microprobe X-ray analysis.
- Location of Calcium Within Bacillus Spores by Electron Probe X-Ray Microanalysis1
- Electron probe x-ray analysis of single ferritin molecules.
- Ion Distribution in Roots of Barley Seedlings Measured by Electron Probe X-Ray Microanalysis 1
- Peroxidase Activity in the Abscission Zone of Bean Leaves during Abscission 1
