Aug 12

August General Meeting

Date & Time
12 August 2025 1:00 PM - 2:00 PM
Timezone
(UTC+10:00) Australia/Queensland

The speaker for our August meeting is Dr Ivy Chen, from Plant Biosecurity and Product Integrity, Department of Primary Industries. She'll tell us about plant sterol modification and its impact on host suitability for sucking and chewing insects. 

Sterols are essential for eukaryotic cell structure and metabolism, yet insects lack the ability to synthesise them de novo. Herbivorous insects often convert plant-derived sterols into cholesterol to sustain development and reproduction. However, plant sterols vary among species, and some are unsuitable for insects. To understand what “Bugs on Steroids” means for insect-plant interactions, we used artificial diets and genetically modified plants with modified sterol profiles to study the plant sterol suitability and insect sterol metabolism. We focused on a sucking insect Myzus persicae and a chewing insect Plutella xylostella, revealing differences in their sterol utilisation strategies related to their different feeding behaviours. 


Tuesday 8th Jul 2025 - Sunday 3rd Aug 2025
Spiders of Paradise
A photographic series featuring beautiful peacock spiders. ...
Tuesday 11th Nov 2025
Perkins Memorial Lecture
Biennial Perkins Memorial Lecture--Save the Date! ...

Regular Meetings

ESQ general meetings are held every second Tuesday of the month* at 1pm at the Ecoscience Precinct in Dutton Park, Brisbane (see maps below). There is no need to sign in to the ground floor Seminar Room 1.

There is limited street parking available so Public transport is highly recommended. Visitors are always welcome.

*except January, February and July

 

Location Map (Click to enlarge)

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Building Map (Click to enlarge)

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