biostudies-literatureUnknown11(22)Preusche MPeppermint (<i>Mentha x piperita</i>) is a species with inhibitory allelopathic properties due to its high amounts of terpenes. Recent studies have disclosed dosage dependent growth promotion or defense reactions in plants when facing appropriate amounts of <i>Mentha</i> bouquet terpenes. These positive effects could be of interest for agricultural applications. To obtain more insights into leaf growth modulations, the expression of <i>Arabidopsis&amp;nbsp;and Brassica rapa</i> TCP transcription factors were studied after fumigation with <i>M. x piperita</i> bouquets (<i>Arabidopsis</i>), with <i>M. x piperita</i> essential oil or with limonene (<i>Arabidopsis</i> and Chinese cabbage). According to qPCR studies, expression of <i>TCP3</i>, <i>TCP24</i>, and <i>TCP20</i> were downregulated bPlants (Basel, Switzerland)3078https://www.ebi.ac.uk/biostudies/studies/S-EPMC9697212biostudies-literatureModulating Expression Levels of TCP Transcription Factors by <i>Mentha x piperita</i> Volatiles-An Allelopathic Tool to Influence Leaf Growth?PMC9697212Preusche MUlbrich AVahl MRiediger JSchulz MfalseModulating Expression Levels of TCP Transcription Factors by <i>Mentha x piperita</i> Volatiles-An Allelopathic Tool to Influence Leaf Growth?Peppermint (<i>Mentha x piperita</i>) is a species with inhibitory allelopathic properties due to its high amounts of terpenes. Recent studies have disclosed dosage dependent growth promotion or defense reactions in plants when facing appropriate amounts of <i>Mentha</i> bouquet terpenes. These positive effects could be of interest for agricultural applications. To obtain more insights into leaf growth modulations, the expression of <i>Arabidopsis&amp;nbsp;and Brassica rapa</i> TCP transcription factors were studied after fumigation with <i>M. x piperita</i> bouquets (<i>Arabidopsis</i>), with <i>M. x piperita</i> essential oil or with limonene (<i>Arabidopsis</i> and Chinese cabbage). According to qPCR studies, expression of <i>TCP3</i>, <i>TCP24</i>, and <i>TCP20</i> were downregulated b2022-01-01T00:00:00Z2022 Nov2025-04-05T14:41:14.595Z2025-04-05T14:41:14.595ZS-EPMC96972123643280710.3390/plants11223078