Aleksandra Stęplowska

scientist
biology/plant biotic interactions/virology

I will write in #English and #Polish :)

Aleksandra StęplowskaStepelka@mastodon.world
2025-02-07

Genetic variability in the 3'UTR RNA1 of tomato torrado #virus - implications for virus #transmission by whiteflies

The next paper from our lab
with Marta Budziszewska - the lead scientist
🦠🍅

#torradovirus #plantscience #virology #plantpathology

sciencedirect.com/science/arti

Aleksandra StęplowskaStepelka@mastodon.world
2024-11-13

You can also find me on Bluesky,

bsky.app/profile/stepelka.bsky

where I will also write about #science, especially #biology 🦋
#bsky

Aleksandra StęplowskaStepelka@mastodon.world
2024-10-08

If you want to read how small non-coding satellite RNA (#satRNA) molecules affect #virus transmission by insects, (and the mitigating/accelerating effect of satRNA on this process) - please read our preprint on plant viruses: PSV, CMV and their satRNAs

biorxiv.org/content/10.1101/20
#plantscience #biology #molecularbiology, #virology #science

Aleksandra StęplowskaStepelka@mastodon.world
2024-10-08

If you want to read how small non-coding satellite RNA (#satRNA) molecules affect #virus transmission by insects, (and the mitigating/accelerating effect of satRNA on this process) - please read our preprint on plant viruses: PSV, CMV and their satRNAs

biorxiv.org/content/10.1101/20
#plantscience #biology #molecularbiology, #virology #science

Aleksandra StęplowskaStepelka@mastodon.world
2024-07-26

SatRNAs - the 'game changers' at the virus–host plant interaction?

After years of working with satellite RNAs, we wrote this synthetic and critical paper, with both historical and most recent data, as well as hypotheses and prospects for further research

onlinelibrary.wiley.com/doi/fu

#plantbiology #biology #science #nature #virus #plantvirus #virology #plantscience

Aleksandra StęplowskaStepelka@mastodon.world
2024-04-22

Cereal leaf #beetle-associated #bacteria enhance the survival of their host upon #insecticide treatments and respond differently to insecticides with different modes of action

Our next paper is finally out!

#microbiome #insecticideresistance #plantbiology #entomology #science #insects #microbiology #pests

enviromicro-journals.onlinelib

Aleksandra StęplowskaStepelka@mastodon.world
2024-01-04

The accepted (before proof) version of our first #2024 #article is available online:

The #Dicer-like Protein 4 and RNA-dependent RNA Polymerase 6 are Involved in Tomato Torrado #Virus Pathogenesis in #Nicotiana benthamiana

Published in #Plant and #Cell #Physiology and funded by #NCN #Sonata

academic.oup.com/pcp/advance-a

#science #plantscience #plantvirus #virology #plantvirusinteraction #PTGS #RNAi #torradovirus

Aleksandra StęplowskaStepelka@mastodon.world
2023-11-30

Tomato torrado #virus defective genomes with truncated 3′ UTR of RNA1 are infectious. Changes in RNA1 length affect viral replication and sap transmission from plant to plant. Large deletions in 3'UTR of ToTV RNA1 may have arisen spontaneously or as an adaptation to the mode of viral transmission.
bsppjournals.onlinelibrary.wil
Research funded by #Sonata @NCN_PL (to lead author M.Budziszewska)
#plantvirus #plantsci #plantvirology #RNA #plantscience #science #plantvirusinteraction

Aleksandra Stęplowska boosted:
Aleksandra StęplowskaStepelka@mastodon.world
2023-10-23
Aleksandra Stęplowska boosted:
2023-10-20

Aleksandra OBRĘPALSKA-STĘPLOWSKA: Potencjał aplikacyjny ukryty w mRNA. Nobel w dziedzinie fizjologii/medycyny 2023

Tegoroczną decyzją Komitetu Noblowskiego przyznano Nagrodę Nobla w dziedzinie fizjologii lub medycyny dwojgu naukowcom: dr Katalin Karikó oraz prof. Drew Weissmanowi. #nobel #nagrodanobla #mrna #medycyna

wszystkoconajwazniejsze.pl/ale

Aleksandra StęplowskaStepelka@mastodon.world
2023-08-26

New #publication:
We compared the influence of two #resistance inducers, BTH and Chol-BTH (#ionicliquid) on #plantdefense & #antioxidant properties of #plants using #transcriptomics and targeted #metabolomics.

We found out that Chol-BTH, due to its physicochemical & biological properties (upregulation of lignification-related genes, #peroxidase activity, total #phenolic compounds levels) can also be useful agent inducing plant resistance against viral pathogens
#science
pubs.acs.org/doi/abs/10.1021/a

Aleksandra Stęplowska boosted:
Thiago Carvalhocyrilpedia@qoto.org
2023-07-19

'Sex-specific splicing is an essential process that regulates sex determination and drives sexual dimorphism. Yet, how early in development widespread sex-specific transcript diversity occurs was unknown because it had yet to be studied at the genome-wide level. We use the powerful Drosophila model to show that widespread sex-specific transcript diversity occurs early in development, concurrent with zygotic genome activation. We also present a new pipeline called time2splice to quantify changes in alternative splicing over time.'

elifesciences.org/articles/878

Aleksandra Stęplowska boosted:
Aleksandra StęplowskaStepelka@mastodon.world
2023-07-19

In a new article, we write about how the phenomenon of #weeds acquiring #herbicide #resistance can lead to positive effects when these weeds are plants of #phytomedical importance and important in #food #technology.

#Cornflower is such a plant, and its herbicide-resistant biotypes have much higher levels of #polyphenols, #flavonoids and free radical scavenging activities - i.e. better #health-promoting properties than herbicide-sensitive biotypes
#science #plantscience

nature.com/articles/s41598-023

Aleksandra StęplowskaStepelka@mastodon.world
2023-07-18
Aleksandra StęplowskaStepelka@mastodon.world
2023-07-18

In a new article, we write about how the phenomenon of #weeds acquiring #herbicide #resistance can lead to positive effects when these weeds are plants of #phytomedical importance and important in #food #technology.

#Cornflower is such a plant, and its herbicide-resistant biotypes have much higher levels of #polyphenols, #flavonoids and free radical scavenging activities - i.e. better #health-promoting properties than herbicide-sensitive biotypes
#science #plantscience

nature.com/articles/s41598-023

Aleksandra StęplowskaStepelka@mastodon.world
2023-07-03

Next article from our group on plant-parasitic #nematode - Meloidogyne arenaria, in which we describe its candidate #effector protein MaMsp4,
its interactors from the host plant, gene expression and localization.
link.springer.com/article/10.1

MaMsp4 interacts with host proteins involved in
• plant defense, namely with these taking part in biosynthesis of polyamines and phosphatidylethanolamine.

• plant cell modifications: beta-galactosidase 11, pectinesterase, and polygalacturonase

Aleksandra StęplowskaStepelka@mastodon.world
2023-07-02

Our latest research on plant - #nematode interactions is posted on #bioRxiv.
We show the early stages of compatible interactions between Zea mays and #Meloidogyne arenaria.
Thanks to all involved, especially lead author - Arnika Przybylska #proteomics #plantproteome #science #molecularbiology #plantscience

biorxiv.org/content/10.1101/20

Aleksandra StęplowskaStepelka@mastodon.world
2023-06-02

Widzę, że nasz artykuł - Archiwizacja Danych Cyfrowych w DNA, napisany z prof. Maciejem Ogorzałkiem o możliwości wykorzystania #DNA jako nośnika pamięci
(wszystkoconajwazniejsze.pl/ale)
znalazł się w repozytorium Uniwersytetu Jagiellońskiego.

To pozytywne, że jest też tam kolekcja poświęcona artykułom popularno-naukowym ->
ruj.uj.edu.pl/xmlui/handle/ite

#science #technology #molecularbiology #biotechnology #biotechnologia

Aleksandra StęplowskaStepelka@mastodon.world
2023-05-29

blooming time of my favourite flowers - cornflowers - Centaurea cyanus

instagram.com/p/Cs0crYlK4JD/

Client Info

Server: https://mastodon.social
Version: 2025.07
Repository: https://github.com/cyevgeniy/lmst