Analysis of gene expression during the transition to climacteric phase in carnation flowers (Dianthus caryophyllus L.).

ABSTRACT: It has been generally thought that in ethylene-sensitive plants such as carnations, senescence proceeds irreversibly once the tissues have entered the climacteric phase. While pre-climacteric petal tissues have a lower sensitivity to ethylene, these tissues are converted to the climacteric phase at a critical point during flower development. In this study, it is demonstrated that the senescence process initiated by exogenous ethylene is reversible in carnation petals. Petals treated with ethylene for 12h showed sustained inrolling and senescence, while petals treated with ethylene for 10h showed inrolling followed by recovery from inrolling. Reverse transcription-PCR analysis revealed differential expression of genes involved in ethylene biosynthesis and ethylene signalling between 10h and

SUBMITTER: In BC 

PROVIDER: S-EPMC3830478 | biostudies-literature | 2013 Nov

REPOSITORIES: biostudies-literature