Epsilon Archive for Student Projects

Abstract

The role of volatile organic compounds (VOCs) in plant-plant communication has garnered increasing interest. An understudied aspect is that regarding their potential influence on reproductive timing. This study explores, in literature, whether floral VOCs emitted by flowering individuals can alter the phenology or reproductive strategies of neighbouring conspecifics.
Through a synthesis of empirical studies and reviews, this paper discusses the mixed evidence surrounding VOC-mediated flowering synchronisation. It also explores broader theoretical contexts, such as cue reliability, kin recognition, stigma receptivity, microbial modulation of floral VOCs, and the ecological complexity of signal interpretation. While conclusive evidence for intentional synchronisation remains lacking this study proposes further research incorporating genetic relatedness, environmental stress, and microbial influences to deepen our understanding of floral VOCs in plant communication and evolution.
A pilot study is also performed, where Collinsia heterophylla was evaluated for its suitability in future research on VOC-influenced flowering. While it demonstrated some advantageous traits, being an annual, wild species capable of growing and flowering under the experimental conditions, it is also a mixed-mating species which flowers indeterminately, which may limit its usefulness in such studies.