We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Mechanical touch responses of Arabidopsis TCH1-3 mutant roots on inclined hard-agar surface.
- Authors
Guodong Zha; Bochu Wang; Junyu Liu; Jie Yan; Liqing Zhu; Xingyan Yang
- Abstract
The gravity-induced mechanical touch stimulus can affect plant root architecture. Mechanical touch responses of plant roots are an important aspect of plant root growth and development. Previous studies have reported that Arabidopsis TCH1-3 genes are involved in mechano-related events, however, the physiological functions of TCH1-3 genes in Arabidopsis root mechanoresponses remain unclear. In the present study, we applied an inclined hard agar plate method to produce mechanical touch stimulus, and provided evidence that altered mechanical environment could influence root growth. Furthermore, tch1-3 Arabidopsis mutants were investigated on inclined agar surfaces to explore the functions of TCH1-3 genes on Arabidopsis root mechanoresponses. The results showed that two tch2 mutants, cml24-2 and cml24-4, exhibited significantly reduced root length, biased skewing, and decreased density of lateral root. In addition, primary root length and density of lateral root of tch3 (cml12-2) was significantly decreased on inclined agar surfaces. This study indicates that the tch2 and tch3 mutants are hypersensitive to mechanical touch stimulus, and TCH2 (CML24-2 and CML24-4) and TCH3 (CML12-2) genes may participate in the mechanical touch response of Arabidopsis roots.
- Subjects
ARABIDOPSIS; MUTANT proteins; AGAR; PHYSIOLOGY; GENES
- Publication
International Agrophysics, 2016, Vol 30, Issue 1, p105
- ISSN
0236-8722
- Publication type
Article
- DOI
10.1515/intag-2015-0065