Новости науки и практики // Май 2019

New chemical tool to block endocytosis in plants identified

An international collaborative effort of scientists from several VIB Centers, Ghent University and the Free University of Berlin, coordinated by Prof. Jenny Russinova found a new chemical that blocks endocytosis.

https://www.eurekalert.org/pub_releases/2019-04/vfi-nct042319.php

Plants are also stressed out

Salk scientists uncover a link between RNA editing and chloroplast-to-nucleus communication that could help plants adapt to a changing world

https://www.eurekalert.org/pub_releases/2019-04/si-paa041819.php

To protect stem cells, plants have diverse genetic backup plans

In a paper describe the genetic mechanisms that ensure "a deeply conserved stem cell circuit" maintains some function, even if defects occur in a signaling protein called CLV3, and the receptor with which it interacts.

https://www.eurekalert.org/pub_releases/2019-04/cshl-tps041119.php

A novel gibberellin promotes seedling establishment

A previously unknown biologically active gibberellin present in seeds of Arabidopsis thaliana is formed by hydration of the gibberellin precursor GA₁₂ through the action of GAS2, a 2-oxoglutarate-dependent dioxygenase that decreases sensitivity to abscisic acid and promotes seed germination and seedling establishment.

https://www.nature.com/articles/s41477-019-0427-7

Dynamic role of iron supply in amelioration of cadmium stress by modulating antioxidative pathways and peroxidase enzymes in mungbean

The main aim of this study was to determine whether mungbean seedlings are able to modulate the uptake of Cd under supplementation of Fe for two different time intervals.

https://academic.oup.com/aobpla/article/11/2/plz005/5307760

Knowing how cells grow and divide can lead to more robust and productive plants

Researchers identified a novel component that controls the development of root branches supporting plants.

https://www.eurekalert.org/pub_releases/2019-04/vfi-khc041219.php

How plants defend themselves

Plant immune system detects bacteria through small fatty acid molecules

https://www.eurekalert.org/pub_releases/2019-04/tuom-hpd041119.php

Everyday enzymes, now grown in plants

Myriad industrial processes rely on enzymes. Research emerging from the University of Pennsylvania is transforming how these enzymes get made.

https://www.eurekalert.org/pub_releases/2019-04/uop-een040919.php

Electron shuttle' protein plays key role in plant cell-wall construction

Controlling the flow of electrons by targeting shuttle proteins could be a new strategy for guiding plants to make desired products

https://www.eurekalert.org/pub_releases/2019-04/dnl-sp040519.php

Ready, steady, go: 2 new studies reveal the steps in plant immune receptor activation

In two new studies have pieced together the sequence of molecular events that convert inactive NLR molecules into active complexes that provide disease resistance.

https://www.eurekalert.org/pub_releases/2019-04/mpif-rsg040419.php

Rusted root: Weedy rice repeatedly evolves 'cheater' root traits

The new study shows how two independently evolved weedy rice strains have convergently arrived at a similar pattern of root growth that may play a role in their ability to outcompete cultivated rice for soil nutrients.

https://www.eurekalert.org/pub_releases/2019-04/wuis-rrw040419.php

Plants grow less in hotter temperatures

The research illuminates a new mechanism that optimizes organ growth under stressful conditions.

https://www.eurekalert.org/pub_releases/2019-04/nios-pgl033119.php

Doing more with less in the study of plant chemical defense

A high-throughput method to quantify plant biochemical responses with small tissue samples.

https://www.eurekalert.org/pub_releases/2019-04/bsoa-dmw040219.php

Newly discovered mechanism of plant hormone auxin acts the opposite way

Auxin accumulation at the inner bend of seedling leads to growth inhibition rather than stimulation as in other plant tissues.

https://www.eurekalert.org/pub_releases/2019-04/iosa-ndm040119.php

Real‐time whole‐plant dynamics of heavy metal transport in Arabidopsis halleri and Arabidopsis thaliana by gamma‐ray imaging

Researchers show that our system can be used to quantitatively image and measure uptake and root‐to‐shoot translocation dynamics of zinc in real time.

https://onlinelibrary.wiley.com/doi/full/10.1002/pld3.131

Zinc excess induces a hypoxia-like response by inhibiting cysteine oxidases in poplar roots

The present study unveils the contribution of the oxygen sensing machinery to the Zn excess response in poplar, which may be exploited to improve Zn tolerance and increase Zn accumulation capacity in plants.

http://www.plantphysiol.org/content/early/2019/04/24/pp.18.01458

Scientists develop methods to validate gene regulation networks

Findings reveal how plants respond to key nutrient in fertilizer.

https://www.sciencedaily.com/releases/2019/04/190405080928.htm

Scientists discover first organism with chlorophyll genes that doesn't photosynthesize

For the first time scientists have found an organism that can produce chlorophyll but does not engage in photosynthesis. The peculiar organism is dubbed 'corallicolid' because it is found in 70 per cent of corals around the world and may provide clues as to how to protect coral reefs in the future.

https://www.sciencedaily.com/releases/2019/04/190403135058.htm