The International Society of Endocytobiology (ISE), founded in 1983, aims to promote research of endocytobiology and (endo)symbiosis, and supports the understanding of symbiotic interactions and of antisymbiotic processes (like intertaxonic combination) at the cellular level (e.g. physiological, biochemical and genetical aspects). The field embraces both the significance of these interactions for host and symbiont, and their relevance to the origin and evolution of pro- and eukaryotic cells, including exogenosomes (cell organelles like chloroplasts) and exogenons (interspecific transferred whole genes or gene fragments), and furthermore related aspects of organismic and cellular biology (see

When and where?

This year's ISE Symposium will be held at the TU Kaiserslautern in Germany from September 29th to October 1, 2021. Kaiserslautern is a city of about 100,000 people in southwestern Germany and is easily accessible from many destinations within Europe.

We now decided to hold this symposium on site with all sanitary measures required, depending on the status of the pandemic. This means that our conference capacity is restricted to 45 participants. So register early to make sure you can participate. However, in case you are not able to join in presence, you will be able to listen to the talks via Zoom. Questions will be possible in the chat and asked to the speaker via the session chair. Online talks in a hybrid format will not be possible. If you prefer to participate online, please register as well and indicate that you will join online. All information regarding program and the link will be emailed in time.

Please inform as as soon as possible if you need to cancel your registration, so we can free up your space for other participants.

Confirmed invited Speakers are:

Johannes Herrmann

Ingrid Lafontaine

Maria Mittag

Uwe Maier

Ekkehard Neuhaus

Danja Schünemann

Markus Schwarzländer

Francis-André Wollman


There is no registration fee for this meeting. Accommodation and travel costs need to be covered by the participants.


You can download the  program here.

Abstract submission

Please indicate below if you wish to present your data preferably as a talk or as a poster. Deadline for abstract submission is August 31st, 2021. Please email your abstract directly to Felix via willmund(at) Templates for abstracts can be downloaded here. Talks will be selected based on submitted abstracts. Please stay within the word limit.

Accommodation in Kaiserslautern

We have reserved a contingent of single-bed (66.50 EUR/night) and double-bed rooms (85 EUR/night and room) at the B&B Hotel in Kaiserslautern. 

The indicated prices are special rates if you reserve your room before August 8th, 2021. Please book the rooms directly via the Hotel´s website and indicate “Kontingent proCampus GmbH“ at your booking. You may also book after July 31st, but we cannot promise that rooms are still available at this hotel and at this rate. Alternative hotels can be found here:

Best Western Kaiserslautern

Hampton by Hilton Kaiserslautern

Hotel Zollamt



How to get to the hotel?

Download directions here.

How to get to the conference site?

Download directions here.