23rd International Congress on Nitrogen Fixation - ICNF 2026

View Parallel Sessions and Proposed Chairs

Sunday, August 30, 2026

8:30 am - 6:30 pm	Registration and lodging Secretary of the Congress – Hotel front desk.
6:30 pm - 7:20 pm	Opening ceremony Opening ceremony
7:20 pm - 8:30 pm	Keynote lecture - Nitrogen Fixation in Perspective in Brazil Fábio de Oliveira Pedrosa Universidade Federal do Paraná (UFPR) F.O. Pedrosa (UFPR, Brazil)
8:30 pm - 10:00 pm	Welcome cocktail Hotel Golden Park Internacional Foz & Convenções

Monday, August 31, 2026

9:00 am - 10:30 am	Plenary Session 1: Chemistry and Biochemistry of Nitrogenase Plenary Session 1: Chemistry and Biochemistry of Nitrogenase
9:00 am - 9:30 am	Kinetic mechanism of nitrogenase Lance Seefeldt Arizona University Kinetic mechanism of nitrogenase
9:30 am - 10:00 am	Alternative nitrogenase structure and mechanism Oliver Einsle Albert-Ludwigs-Universität Freiburg Alternative nitrogenase structure and mechanism
10:00 am - 10:30 am	TBD presentation John W. Peters The University of Oklahoma TBD presentation
10:30 am - 11:00 am	Coffee Break Coffee Break
11:00 am - 12:30 pm	Plenary Session 2: Engineering Nitrogen Fixation Plenary Session 2: Engineering Nitrogen Fixation
11:00 am - 11:30 am	Engineering eukaryote organelles to fix nitrogen Luis Rubio Universidad Autónoma de Madrid Engineering eukaryote organelles to fix nitrogen
11:30 am - 12:00 pm	TBD presentation Christopher Voigt MIT TBD presentation
12:00 pm - 12:30 pm	Engineering nitrogenase Yi Ping Peking University, Beijing Engineering nitrogenase
12:30 pm - 2:00 pm	Lunch
2:00 pm - 3:30 pm	PARALLEL SESSIONS 1 & 2 1. Nodule Function 2. Non-legume symbiosis
3:30 pm - 4:00 pm	Coffee break Coffee break
4:00 pm - 5:30 pm	PARALLEL SESSIONS 3 & 4 PARALLEL SESSIONS 3 & 4
5:30 pm - 7:30 pm	Poster Session I Poster Session I

Tuesday, September 01, 2026

9:00 am - 10:30 am	Plenary Session 3: Legume Symbioses (Chair: Gary Stacey) Chair: Gary Stacey
9:00 am - 9:30 am	Energy sensors and nitrogen fixation Xulue Wang China Energy sensors and nitrogen fixation
9:30 am - 10:00 am	TBD presentation Gary Stacey Missouri University TBD presentation
10:00 am - 10:30 am	TBD presentation TBD presentation
10:30 am - 11:00 am	Coffee Break Coffee Break
11:00 am - 12:30 pm	Plenary Session 4: Crop diazotroph-interactions Plenary Session 4: Crop diazotroph-interactions
11:00 am - 11:30 am	Impact of Azospirillum on agriculture Fabricio Cassan Universidad de Río Cuarto Impact of Azospirillum on agriculture
11:30 am - 12:00 pm	TBD presentation TBD presentation
12:00 pm - 12:30 pm	Plant control of associative nitrogen fixation Philip Poole Oxford University Plant control of associative nitrogen fixation
12:30 pm - 2:00 pm	Lunch Lunch
2:00 pm - 3:30 pm	PARALLEL SESSIONS 5 & 6 PARALLEL SESSIONS 5 & 6
3:30 pm - 4:00 pm	Coffee break Coffee break
4:00 pm - 5:30 pm	PARALLEL SESSIONS 7 & 8 PARALLEL SESSIONS 7 & 8
5:30 pm - 7:30 pm	Poster Session II Poster Session II

Wednesday, September 02, 2026

9:00 am - 10:30 am	Plenary Session 5: Associative and Endophytic Nitrogen Fixation Plenary Session 5: Associative and Endophytic Nitrogen Fixation
9:00 am - 9:30 am	Regulation of nitrogen metabolism in associative bacterium Azospirillum brasilense Edileusa Gerhardt Universidade Federal do Paraná Regulation of nitrogen metabolism in associative bacterium Azospirillum brasilense
9:30 am - 10:00 am	Role of the Type VI secretion system in beneficial plant-microbe interactions Barbara Reinhold-Hurek University of Bremen Role of the Type VI secretion system in beneficial plant-microbe interactions
10:00 am - 10:30 am	Plant signalling in cereal-bacteria associations Adriana Hemerly UFRJ Plant signalling in cereal-bacteria associations
10:30 am - 11:00 am	Coffee Break Coffee Break
11:00 am - 12:30 pm	Plenary Session 6: Nitrogen-Fixing Symbioses in Marine Environments Plenary Session 6: Nitrogen-Fixing Symbioses in Marine Environments
11:00 am - 11:30 am	TBD presentation TBD presentation
11:30 am - 12:00 pm	Intercellular communication in the fern endosymbiotic cyanobacterium Nostoc azollae Cristina Sarasa-Buisán Instituto de Bioquímica Vegetal y Fotosíntesis Intercellular communication in the fern endosymbiotic cyanobacterium Nostoc azollae
12:00 pm - 12:30 pm	TBD presentation TBD presentation
12:30 pm - 2:00 pm	Lunch Lunch
2:00 pm - 7:30 pm	Reserved for Iguaçu Falls excursion Wednesday afternoon is reserved for excursion to the Iguaçu Falls

Thursday, September 03, 2026

9:00 am - 10:30 am	Plenary Session 7: Diazotroph Diversity and Evolution Plenary Session 7: Diazotroph Diversity and Evolution
9:00 am - 9:30 am	TBD presentation TBD presentation
9:30 am - 10:00 am	TBD presentation TBD presentation
10:00 am - 10:30 am	Diversity of rhizobia in revegetated areas Fátima Moreira UFLA, Lavras Diversity of rhizobia in revegetated areas
10:30 am - 11:00 am	Coffee Break Coffee Break
11:00 am - 12:30 pm	Plenary Session 8: Biological Nitrogen Fixation in Agriculture and Forestry Plenary Session 8: Biological Nitrogen Fixation in Agriculture and Forestry
11:00 am - 11:30 am	The Brazilian experience with soybean co-inoculation Mariangela Hungria Embrapa Soja The Brazilian experience with soybean co-inoculation
11:30 am - 12:00 pm	TBD presentation TBD presentation
12:00 pm - 12:30 pm	TBD presentation TBD presentation
12:30 pm - 2:00 pm	Lunch Lunch
2:00 pm - 3:30 pm	Parallel 9 & 10 Parallel 9 & 10
3:30 pm - 4:00 pm	Coffee break Coffee break
4:00 pm - 5:30 pm	Parallel 11 & 12 Parallel 11 & 12
5:30 pm - 6:10 pm	Closing Talk - Nitrogen Fixation Imperatives for the 21st Century Nitrogen Fixation Imperatives for the 21st Century
6:10 pm - 6:30 pm	Closing Ceremony Closing Ceremony
8:00 pm - 11:00 pm	Farewell banquet Farewell banquet

Remember that in order to participate in any course, you must be registered for the 23rd ICNF.

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