Chemodiversity of surface flavonoids in Solanaceae

Area of Science:

• Plant biochemistry
• Phytochemistry
• Solanaceae family

Background:

• Flavonoids are important plant secondary metabolites with diverse functions.
• The Solanaceae family, including Nicotiana and Solanum, is known for its complex chemodiversity.
• Exudate flavonoids represent a specialized subset of plant secondary metabolites.

Purpose of the Study:

• To investigate the chemodiversity of exudate flavonoids in various Solanaceae species.
• To identify and compare common and rare flavonoid aglycones within the family.
• To discuss the findings in the context of existing literature and morphological/systematic aspects.

Main Methods:

• Chemical analysis of plant exudates from selected Nicotiana, Solanum, and Physalis species.
• Identification of flavonoid aglycones using established phytochemical techniques.
• Comparative analysis of obtained data with previously published results on Solanaceae flavonoids.

Main Results:

• Widespread flavonols were the predominant aglycones found in most examined species.
• Rare and unusual flavonols were identified, particularly in exudates of Physalis and Solanum species.
• Flavones were found to be widely distributed throughout the Solanaceae family, whereas flavanones were rare.

Conclusions:

• The study highlights significant chemodiversity in exudate flavonoids within the Solanaceae family.
• The presence of both common and rare flavonoids provides insights into the evolutionary and ecological roles of these compounds.
• Further research integrating chemical data with morphological and systematic information can enhance our understanding of Solanaceae evolution.