Wiener Schnitzel, Mozartkugel and Conference

Dear Readers, Greetings from Wien!

I am visiting the Conference entitled "Plant Nutrition, Growth and Environment Interactions III".

Conference website

This was the last day of the conference, tomorrow I travel home.

I heard interesting talks e.g. about iron transport, signalling, N/nitrate signalling, sulphur accumulation. The invited speakers presented the highest level science.

Now, I am full of new ideas :)

I presented a poster about selenium-influenced root architectural changes and the involvement of ethylene in this process.

And let me show some pictures about my last 3 days in Wien:

Conference people

 

 

Posters (only 19 posters were presented)

Me and my poster

And a last picture indicating that I am really in Wien (Stephansdom and platz):

I am glad to be here (thanks for János Bolyai Research Scholarship of the Hungarian Academy of Sciences and for the National Research, Development and Innovation Fund (grant No. NFKI-6, K120383).

A new publication from our group in Plant Physiology and Biochemistry!

"This review intends to evaluate the accumulated knowledge about the biochemical mechanism, the structural and functional consequences and the selectivity of plants’ protein nitration and also about the decomposition or conversion of nitrated proteins. 

At the same time, this review emphasizes yet unanswered or uncertain questions such as the reversibility/irreversibility of tyrosine nitration, the involvement of proteasomes in the removal of nitrated proteins or the effect of nitration on Tyr phosphorylation. The different NO producing systems of algae and higher plants raise the possibility of diversely regulated protein nitration. Therefore studying PTN from an evolutionary point of view would enrich our present understanding with novel aspects." 

Let's show you a summaryzing figure from the paper:

Fates and consequences of PTN. Possible mechanisms regulating nitrated protein pool (left) and possible functional, signalling consequences of tyrosine nitration (right). The nitro group in tyrosine residue can be reduced, but neither enzymatic nor non-enzymatic reductants have been identified in plants or in animals. Denitrase activity has been characterized in animals but not in plants consequently the reversibility of tyrosine nitration is still questionable. Formation and accumulation of proteasome-resistant protein aggregates can also be conceivable. Nitrated proteins can be targeted for polyubiquitination and for proteasomal degradation as it was evidenced by Castillo et al. (2015). Nitration may cause structural and consequently functional modifications (inactivation, activation) in proteins. In plants, evidences available for PTN-triggered functional loss or unaffected activity (Begara-Morales et al., 2015). Moreover, nitration of tyrosine amino acid may interfere with phosphorylation. In plants, the converse regulation of Tyr phosphorylation and nitration has been evidenced which raises the possibility of competition between the two post-translational regulatory processes (modified from Souza et al., 2008).

click here if you are interested in

Dear Readers!

The research project entitled "Novel regulators in morphological adaptation of plants: the roles and interactions of nitric oxide- and hormone-dependent signals" has officially been started.

At first, a rhizotron system has to be optimalized for root growth analysis. Gábor industriously prepares the rhizotrones and the lab looks like a yard! :D

Later, we will show some pics about our plants growing in these nice rhizotrones.