Aluminum induces rapidly mitochondria-dependent programmed cell death in Al-sensitive peanut root tips.

ABSTRACT:

Background

Although many studies suggested that aluminum (Al) induced programmed cell death (PCD) in plants, the mechanism of Al-induced PCD and its effects in Al tolerance is limited. This study was to investigate the mechanism and type of Al induced PCD and the relationship between PCD and Al tolerance.

Results

In this study, two genotypes of peanut 99-1507 (Al tolerant) and ZH2 (Al sensitive) were used to investigate Al-induced PCD. Peanut root growth inhibition induced by AlCl₃ was concentration and time-dependent in two peanut varieties. AlCl₃ at 100 μM could induce rapidly peanut root tip PCD involved in DNA cleavage, typical apoptotic chromatin condensation staining with DAPI, apoptosis related gene Hrs203j expression and cytochrome C (Cyt c) rel

SUBMITTER: Huang WJ 

PROVIDER: S-EPMC5432755 | biostudies-literature | 2014 Dec

REPOSITORIES: biostudies-literature