Jasmonate-independent regulation of digestive enzyme activity in the carnivorous butterwort Pinguicula × Tina.

ABSTRACT: Carnivorous plants within the order Caryophyllales use jasmonates, a class of phytohormone, in the regulation of digestive enzyme activities. We used the carnivorous butterwort Pinguicula × Tina from the order Lamiales to investigate whether jasmonate signaling is a universal and ubiquitous signaling pathway that exists outside the order Caryophyllales. We measured the electrical signals, enzyme activities, and phytohormone tissue levels in response to prey capture. Mass spectrometry was used to identify proteins in the digestive secretion. We identified eight enzymes in the digestive secretion, many of which were previously found in other genera of carnivorous plants. Among them, alpha-amylase is unique in carnivorous plants. Enzymatic activities increased in response to prey capture; how

SUBMITTER: Kocab O 

PROVIDER: S-EPMC7307851 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature