New sensitive biological assay for 12,13-epoxytrichothecenes

Area of Science:

• Plant Science
• Toxicology
• Biochemistry

Background:

• T2 toxin and diacetoxyscirpenol are known mycotoxins with potential phytotoxic effects.
• Plant reproductive processes, such as pollen germination, can be sensitive indicators of environmental stress and chemical exposure.

Purpose of the Study:

• To investigate the inhibitory effects of T2 toxin and diacetoxyscirpenol on Nicotiana sylvestris pollen germination.
• To develop a sensitive assay for the detection of these toxins based on their effect on pollen germination.

Main Methods:

• Nicotiana sylvestris pollen was subjected to varying concentrations of T2 toxin and diacetoxyscirpenol.
• Pollen germination rates were assessed microscopically.
• An assay was optimized to detect low quantities of the toxins.

Main Results:

• Both T2 toxin and diacetoxyscirpenol significantly inhibited Nicotiana sylvestris pollen germination in a dose-dependent manner.
• The developed assay demonstrated the capability to detect nanogram levels of T2 toxin and diacetoxyscirpenol.

Conclusions:

• Nicotiana sylvestris pollen germination is a viable bioindicator for the presence of T2 toxin and diacetoxyscirpenol.
• The developed assay provides a sensitive method for detecting these mycotoxins in trace amounts.