France

Discover the art of creating extraordinary science at SEB’s Annual Conference at Le Corum Conference Center     in Montpellier, France from 5 to  8 July 2022.

SEB’s Annual Conference is celebrated for creating the perfect composition of research, new discoveries and collaborative connections. Be creative and innovative by exchanging ideas and knowledge with masters of biology from all over the world.

2022 will find over 1500 experimental biologists from across the globe converging on the third-largest French city near the Mediterranean coast and the fastest-growing city in the country over the past 25 years.
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Please register for the conference by clicking on this link:

https://www.sebiology.org/events/seb-annual-conference-2022/registration.html

The site will be open for registered participants closer to the event.

SEB Annual Conference 2022

2022 will find over 1500 experimental biologists from across the globe converging on the third-largest French city near the Mediterranean coast and the fastest-growing city in the country over the past 25 years - Montpellier, France

The Arabidopsis gynoecium is a complex structure composed of different tissues. Development is regulated by hormone interactions, especially auxin and cytokinin, as well as the spatiotemporal action of transcription factors and chromatin dynamics, including epigenetic modifications of core histones. SPT is bHLH transcription factor involved in gynoecium development, specifically affecting both auxin and cytokinin responses. GCN5 is a histone acetyltransferase with pleiotropic biological roles including auxin and cytokinin responses in the gynoecium. CLV1 is a receptor kinase, part of the CLAVATA signaling pathway which suppresses the expression of WUS in apical and floral meristems. Previous work has shown that clv1gcn5 double mutants exhibit a plethora of phenotypes including fasciated meristems and abnormal flowers with increased number of stamen and elongated gynoecia with enlarged apical regions and reduced ovaries. In the double mutants, the stem-cell-promoting transcription factor WUS is ectopically overexpressed in the gynoecia. To elucidate genetic interactions between SPT, CLV1 and GCN5 we created all genetic combination between spt, clv1 and gcn5 mutants. We show here that spt mutations largely suppress the phenotypes of clv1gcn5 gynoecia. The enlarged stigma and style and ovary formation are restored in sptclv1gcn5 plants compared to clv1gcn5 plants. The spt mutation also reverses the WUS ectopic overexpression in clv1gcn5 gynoecia. Interestingly spt gynoecia have also reduced WUS expression compared to wild type. These results suggest that SPT mediates the CLV1-GCN5 synergistic interaction during gynoecium development, potentially acting as a positive regulator of WUS expression in the gynoecium.

The role of SPT as a mediator of CLV1 and GCN5 interaction in gynoecium development in Arabidopsis

poster

 Tessellated osteoderm carapaces in extant armadillos 

No evidence for a signal in mammalian basal metabolic rate associated with a fossorial lifestyle.

Brain size, gut size and cognitive abilities: the energy trade-offs tested in artificial selection experiment

Physiology and feeding strategies of Berghia stephanieae (Nudibranchia: Aeolidiodea)

Performance of scorpion venom secretion in response to different captive conditions: diet, temperature and humidity on different genera of scorpions

Effects of early-life conditions on age-related flight performance in Nicrophorus vespilloides 

Regulatory Network behind Systemic Nitrogen Signaling, in Arabidopsis

Unravelling the role of nitrate in the signaling pathways controlling the symbiotic N-fixation activity in legume nodules

Chloroplast retrograde signaling pathway to adapt photosynthesis to nutrient availability

Plants Actin’ Up – Automatic Cytoskeleton Extraction in Arabidopsis

technical paper

https://assets.underline.io/transcript/41668/subtitle/91e9ee8fe7a9ead68b01abb53648119a.vtt

English (automatic)

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The role of SPT as a mediator of CLV1 and GCN5 interaction in gynoecium development in Arabidopsis

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Tessellated osteoderm carapaces in extant armadillos

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