AI Article Synopsis
- Natural pyrethrins are important for pest control, and understanding their biosynthesis in Tanacetum cinerariifolium is crucial for increasing production.
- A study found that a combination of green leaf volatiles (GLVs) and (E)-β-farnesene can boost the expression of certain enzymes involved in pyrethrin biosynthesis in seedlings.
- The treatment with volatiles primarily increased the expression of specific biosynthetic enzymes (CDS, CAS, TcGLIP, ACX1) after 12 hours, but had minimal effects on other genes, indicating that this gene regulation may be limited to differentiated plant tissues.
Article Abstract
Natural pyrethrins are used to control household and agricultural pests, and it is of value to understand biosynthesis in Tanacetum cinerariifolium for enhanced production. We previously found that a blend of four green leaf volatiles (GLVs) and (E)-β-farnesene emitted by T. cinerariifolium seedlings enhanced gene expressions of certain biosynthetic enzymes in unwounded seedlings; however, the extent to which such a regulation facilitates pyrethrin biosynthesis remains unknown. Here we have investigated the effects of the blend of the volatile organic compounds (VOCs) on gene expressions of seven biosynthetic enzymes. VOC treatment resulted in enhanced chrysanthemyl diphosphate synthase (CDS), chrysanthemic acid synthase (CAS), Tanacetum cinerariifolium GDSL lipase (TcGLIP) and acyl-Coenzyme A oxidase 1 (ACX1) gene expressions that reached a peak at a 12 h VOC treatment, whereas the treatment minimally influenced the expressions of other biosynthetic genes. In undifferentiated Tanacetum tissues, such VOC-induced amplification of CDS, CAS, TcGLIP and ACX1 gene expressions were markedly reduced, suggesting that a high-resolution, VOC-mediated communication is an event selective to differentiated plants.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4883863 | PMC |
| http://dx.doi.org/10.1080/15592324.2016.1149675 | DOI Listing |
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