Strigolactones inhibit caulonema elongation and cell division in the moss Physcomitrella patens.

ABSTRACT: In vascular plants, strigolactones (SLs) are known for their hormonal role and for their role as signal molecules in the rhizosphere. SLs are also produced by the moss Physcomitrella patens, in which they act as signaling factors for controlling filament extension and possibly interaction with neighboring individuals. To gain a better understanding of SL action at the cellular level, we investigated the effect of exogenously added molecules (SLs or analogs) in moss growth media. We used the previously characterized Ppccd8 mutant that is deficient in SL synthesis and showed that SLs affect moss protonema extension by reducing caulonema cell elongation and mainly cell division rate, both in light and dark conditions. Based on this effect, we set up bioassays to examine chemical structure req

SUBMITTER: Hoffmann B 

PROVIDER: S-EPMC4049778 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature