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Nikolas Chaves

@nikolaschaves.bsky.social
162 followers 313 following 94 posts

karaoke singer and 🇧🇷 Brazilian plant pathologist. molecular plant-bacteria interactions

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Reposted by Nikolas Chaves
The Lolgic @thelolgic.bsky.social · 25/08/2026
Brazil is prepping sweet potatoes and chickpeas for the Moon and Mars to feed astronauts and help Earth adapt to climate change. Scientists expose seeds to gamma rays to screen random mutations. Both flew on a Blue Origin rocket! #TheLolgic #SpaceFarming #Agronomy
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Reposted by Nikolas Chaves
Joint Genome Institute @jgi.doe.gov · 03/08/2026
Interested in working with the JGI and never led a proposal with us? Now is your chance! We are accepting submissions to our New Investigator call for first-time PIs. Deadline to submit is Sept. 9. jointgeno.me/CSPnewPI @berkeleylab.lbl.gov @biosci.lbl.gov
jointgeno.me
CSP New Investigator Call | Joint Genome Institute
The CSP New Investigator Call is for investigators and research initiatives new to the JGI. Projects must be independent of ongoing JGI proposals, and lead PIs cannot have been lead PI on any previous...
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Reposted by Nikolas Chaves
Phytopathology® @phytopathology.bsky.social · 29/07/2026
Wheat blast is a major threat to wheat production in tropical and subtropical regions of Brazil. Monalisa C. De Cól et al. investigated the genetic structure and spatiotemporal dynamics of #Pyricularia oryzae Triticum in Minas Gerais, Brazil: doi.org/10.1094/PHYTO-12-25-0383-R
Fig. 1. Locations of 12 sampled wheat fields across municipalities (dots) in the South-Central and Triângulo Mineiro regions of Minas Gerais State, Brazil, collected in 2019 by Ascari et al. (2024).
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Reposted by Nikolas Chaves
International Society for Molecular Plant-Microbe Interactions @ismpmi.bsky.social · 01/07/2026
Important news! The new ISMPMI website is live! Visit the site to get society news, watch posted videos, listen to our podcasts, become or manage your membership and more. ismpmi.org
ismpmi.org
IS-MPMI - International Society for Molecular Plant-Microbe Interactions
Diverse Backgrounds Common Interests Connecting leading scientists and researchers around the world in microbiology, nematology, plant pathology, developmental biology, genetics, genomics, proteomics,...
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Reposted by Nikolas Chaves
T3SS @t3sss.bsky.social · 08/06/2026
Flagellar system translocates T3SS effectors critical for Salmonella infection www.biorxiv.org/content/10.6...
biorxiv.org
Flagellar system translocates T3SS effectors critical for Salmonella infection
Type 3 secretion system (T3SS) injectisomes, the essential virulence factors of many bacterial pathogens, are thought to have evolved from the flagellar T3SS. Despite their high degree of structural s...
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Nikolas Chaves @nikolaschaves.bsky.social · 29/05/2026
This brochure is, undoubtedly, a memento of one of the most beautiful moments I’ve had so far in my professional life 🥲. It was created by students of a small school in Pará state, Brazil. High school students shared with familiars (small farmers) what they learned about the cassava 'witches broom'.
Translating from Portuguese to English:

"DO YOU ALREADY HEARD ABOUT THE CASSAVA WITCHES' BROOM DISEASE?

A fungus from Asia destroyed cassava plantations in the Brazilian North region."
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Nikolas Chaves @nikolaschaves.bsky.social · 04/05/2026
Mango foliar black spots: how three bacteria fooled plant bacteriologists? 🌱🦠🧪 A "detective story" from our recent work at Badel’s lab. Spoiler: appearances can be very deceiving. Open Access: doi.org/10.1111/jph.... [1/6] 🧵
doi.org
Three Distinct Species Cause Bacterial Leaf Spots in ‘Ubá’ Mango in Zona da Mata, Minas Gerais, Brazil
‘Ubá’ mango is a fruit crop of great value for farmers in the Zona da Mata region of Minas Gerais state, Brazil. Organic farmers from this region recently reported a severe outbreak of foliar black s...
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Nikolas Chaves @nikolaschaves.bsky.social · 14/04/2026
Cacao trees planted in fields infested with Cassava Witches' Broom Disease can exhibit similar symptoms. Supposedly, Rhizoctonia theobromae from cassava may also be a causal agent of disease in South American cacao.
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Nikolas Chaves @nikolaschaves.bsky.social · 12/03/2026
Malleus Maleficarum 🔨: seeking witches' brooms on cupuassu. Mushrooms come around April-March. This is my in situ lab.
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Reposted by Nikolas Chaves
Zach Hansen @plantdiseaseguy.bsky.social · 05/03/2026
Hello friends of science! I’m migrating over here from X. There, I had 3,000 followers enjoying plant pathology content! Please help me rebuild. I’ll post plant disease photos, management info, science & nature content. Kicking off with some tomato late blight caused by Phytophthora infestans.
Tomato leaves with late blight caused by Phytophthora infestans
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Reposted by Nikolas Chaves
Sebastian Schornack @dromius.bsky.social · 25/02/2026
Be part of OMGN! Open to all researchers with an interest in oomycetes, from molecular genetics & genomics to biology, population biology, and ecology, at either an experimental or a computational level. Investigators new to the field are always welcome oomycetes.com
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Reposted by Nikolas Chaves
Mohammad Hosseini @mhmdhsini.bsky.social · 03/02/2026
Iranians are experiencing a collective trauma. Thousands have been killed/injured in recent events, the economy is crippled & the threat of a wider conflict is real. This is especially difficult for those living in Iran, as many have lost (or fear losing) loved ones. www.nature.com/articles/d41...
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Nikolas Chaves @nikolaschaves.bsky.social · 27/01/2026
Just published: "Pangenomic and type III secretion effector repertoire differences and commonalities between Xanthomonas that cause common bacterial blight in common bean." A deep dive into the genomic diversity of two key Xanthomonas species. 🧵 #PlantPathology #Xanthomonas 🧪🌱🦠
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Nikolas Chaves @nikolaschaves.bsky.social · 23/01/2026
Four months ago, I shared this post. This week, I was at a field day representing Embrapa in a strategic meeting to discuss Cassava Witch's Broom. I continue to advocate for collaborative research that integrates farmers' observations with scientific data to safeguard our crops. 🌱🧪
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Nikolas Chaves @nikolaschaves.bsky.social · 19/01/2026
OMG! It's time to go to Xanthomonas campestris pv. campestris again! 🌱🦠😅
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Reposted by Nikolas Chaves
Tiffany Lowe-Power stands with Minnesota @tlowepower.bsky.social · 11/12/2025
Please repost: Undergraduates (globally) can receive free membership in the professional scientific society for plant pathogens, the American Phytopathological Society (APS). This society provides excellent professional development. www.apsnet.org/members/comm...
apsnet.org
Borlaug’s Army: an undergraduate membership initiative of the American Phytopathology
Borlaug’s Army: an undergraduate membership initiative of APS....Welcome to Borlaug’s Army —a recruitment, engagement, and outreach initiative of the American Phytopathological Society.  Free membersh...
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Nikolas Chaves @nikolaschaves.bsky.social · 08/12/2025
For an easy color choosing for scientific figures 🧪 considering colorblind accessibility: 1. Pick your favorite color at www.figma.com/color-wheel/ and choose a palette scheme (for example, set “Complementary” for 2 colors or “Square” for 4 complementary colors). 🧵 [1/2] #AcademicSky
figma.com
Color Wheel - Complimentary Color Generator | Figma
Figma’s free color wheel tool makes it easy to create professional color palettes. Choose from a variety of color schemes and start designing right away!
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Nikolas Chaves @nikolaschaves.bsky.social · 05/12/2025
Wearing this badge with so much pride! I am now a Plant Bacteriology researcher at Embrapa (the Brazilian Agricultural Research Corporation)! 🥳 This is an important step for me, and I'm looking forward to contributing to my country 🤞. #newPI
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Reposted by Nikolas Chaves
Sophien Kamoun @kamounlab.bsky.social · 14/10/2025
3 unexpected things we owe to the plant pathogenic bacterium Xanthomonas kamounlab.medium.com/3-unexpected...
kamounlab.medium.com
3 unexpected things we owe to the plant pathogenic bacterium Xanthomonas
I have a special relationship with the bacterium Xanthomonas. As a grad student at UC Davis, I did my thesis research on Xanthomonas…
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Nikolas Chaves @nikolaschaves.bsky.social · 07/10/2025
Wait! So I could be a mermaid 🧜‍♀️ in Copacabana beach right now? Not bad, huh?
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Nikolas Chaves @nikolaschaves.bsky.social · 03/10/2025
collecting my last common bean seeds for the common bacterial blight resistance breeding program. This sounds like the ending of my PhD... cause it is
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Nikolas Chaves @nikolaschaves.bsky.social · 30/09/2025
This morning reading: The beginner's charm ✨️ in Science 🧪 www.nature.com/articles/d41...
nature.com
Want to do disruptive science? Include more rookie researchers
Papers from research teams with a substantial number of beginners are highly disruptive and innovative, study shows.
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Nikolas Chaves @nikolaschaves.bsky.social · 28/09/2025
guess the tomato bacterial spot severity note!
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Nikolas Chaves @nikolaschaves.bsky.social · 22/09/2025
some philosophers use biological science concepts with mastery; some others do not. I was reviewing a quote suggesting an opposition between symbiosis and Darwinian evolution. do some of you agree with it? 🤔
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Nikolas Chaves @nikolaschaves.bsky.social · 07/09/2025
[Cassava Witches Broom Disease: Fungus threatens cassava and the diet of indigenous people in Amapá, Brazil]. Vassoura-de-bruxa: Fungo ameaça mandioca e alimentação de indígenas no Amapá g1.globo.com/jornal-nacio...
g1.globo.com
Vassoura-de-bruxa: Fungo ameaça mandioca e alimentação de indígenas no Amapá
A extensa fronteira do Brasil com a Guiana Francesa foi a porta de entrada do fungo que já se espalhou por oito dos 16 municípios do Amapá e coloca estado em situação de emergência
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Nikolas Chaves @nikolaschaves.bsky.social · 04/09/2025
🇧🇷
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Reposted by Nikolas Chaves
Sophien Kamoun @kamounlab.bsky.social · 31/08/2025
We’re a bunch of amateur psychologists… #AcademicChatter #phdchat
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Nikolas Chaves @nikolaschaves.bsky.social · 17/08/2025
Working on a new plant bacterial disease report! However, there’s a 2015 genome announcement of a bacterium from the same genus causing disease on the same plant as my work... 🤔 I obviously decided to compare 🔎.
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Reposted by Nikolas Chaves
Nature @nature.com · 15/08/2025
Nature research paper: Elementary 3D organization of active and silenced E. coli genome go.nature.com/4n1DTY7
go.nature.com
Elementary 3D organization of active and silenced E. coli genome - Nature
An ultra-high-resolution chromatin organization map of E. coli, using Micro-C, reveals intricate chromatin structures involved in the silencing of horizontally transferred genes and those associated with active operons.
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Nikolas Chaves @nikolaschaves.bsky.social · 13/08/2025
Brazilian Plant Pathology Conference (last week) 🌱🦠! I presented some intriguing results from a bioinformatics course homework on Xanthomonas effector activity inside common bean cells. coming soon to Zenodo 😉
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Nikolas Chaves @nikolaschaves.bsky.social · 25/07/2025
images from the gallery of a plant pathologist on vacation 🦠🌱. spotting beautiful symptoms on passionfruit, banana, and sugarcane leaves
diseased passionfruit leafdiseased banana leafdiseased sugarcane leaf 1diseased sugarcane leaf 2
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Nikolas Chaves @nikolaschaves.bsky.social · 04/07/2025
Sharing good practices: I received this essay through the @aspbofficial.bsky.social newsletter. I recommend it if you, like me, are entangled in multitasking and several research projects plantae.org/how-to-manag...
plantae.org
How to Manage Your Time Effectively as a Researcher | Plantae
The role of a researcher encompasses a wide range of demanding and often competing responsibilities, including experimental design, data analysis, manuscript writing, grant preparation, teaching…
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Nikolas Chaves @nikolaschaves.bsky.social · 26/06/2025
I'm on those days when you want to do many things, but these things don't want the same. I had trouble even in preparing an agarose gel 😥. A nice day to work on the enlightenment of "things have their own time"
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Nikolas Chaves @nikolaschaves.bsky.social · 11/06/2025
certainly, my next extravagance ✨️
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Nikolas Chaves @nikolaschaves.bsky.social · 09/06/2025
I wish more Brazillian colleagues on federal institutions were on Bluesky to see this example...
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Nikolas Chaves @nikolaschaves.bsky.social · 03/06/2025
everything has its time 🧘‍♂️. the rhythm of drops
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Nikolas Chaves @nikolaschaves.bsky.social · 03/06/2025
for a certain reason, I’m at a partner lab on organic chemistry last days. you can't imagine how much fun my inner child is having 🧪
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Nikolas Chaves @nikolaschaves.bsky.social · 29/05/2025
I’m always stunned by a seed begining to sprout. such a small act, yet a powerful phenomenon. I deeply love to work with living organisms
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Reposted by Nikolas Chaves
British Society of Plant Pathology @bspp.bsky.social · 28/05/2025
The Plant Doctor Quiz Cassava growers often see this: brown necrosis starting at the leaf edges and spreading inward. What’s the most likely cause? • Fungal pathogen • Bacterial pathogen • Viral pathogen • Nematodes Drop your diagnosis! Answer revealed tomorrow. #PlantDoctorQuiz #PlantHealth
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Reposted by Nikolas Chaves
Marcos Castro e Silva, PhD 🇧🇷 @macscastro.bsky.social · 16/05/2025
🚨 Our new paper is out in Science! We analyzed 2,723 high-coverage whole genomes from Brazilians to explore how five centuries of colonization, forced migration, and admixture have shaped genetic diversity and impacted health. 📄 science.org/doi/10.1126/... 🧵👇
science.org
Admixture’s impact on Brazilian population evolution and health
Brazil, the largest Latin American country, is underrepresented in genomic research despite boasting the world’s largest recently admixed population. In this study, we generated 2723 high-coverage who...
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Nikolas Chaves @nikolaschaves.bsky.social · 14/05/2025
🇧🇷
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Nikolas Chaves @nikolaschaves.bsky.social · 13/05/2025
reading and writing have always been some of my favorite parts of being a scientist. however, during grad school, most of my writing happened under a time pressure (mostly self-imposed 😵‍💫). now, I’m hoping to shift gears: writing with more pleasure and less pressure🧘‍♂️
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Nikolas Chaves @nikolaschaves.bsky.social · 06/05/2025
At first glance: Oh, just another interesting illustration about molecular biology in agriculture... After a deep appreciation: OMG! How adorable fairies! 🧚‍♀️✨ My inner child so needed this today!
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Nikolas Chaves @nikolaschaves.bsky.social · 22/04/2025
a tiny bacterial spot lesion. Xanthomonas perforans making its mark on tomato leaves
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Nikolas Chaves @nikolaschaves.bsky.social · 16/04/2025
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Nikolas Chaves @nikolaschaves.bsky.social · 10/04/2025
ending the day with *that* all-important electrophoresis. Fingers crossed! 🤞🧪
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Nikolas Chaves @nikolaschaves.bsky.social · 09/04/2025
A little personal post: I went to bed a bit late last night, worrying about the RNA integrity of my working samples. how am I more concerned about common bean RNA than my own?! 🤔 hoping to relax… eventually
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Nikolas Chaves @nikolaschaves.bsky.social · 04/04/2025
The desire to have and the boredom of possessing, science version: This morning, working hard with RNA samples: 'I miss my bioinformatics...'. This afternoon, curating a bacterial MLSA dataset for the 1000th time: 'I miss my pipettes!'
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Nikolas Chaves @nikolaschaves.bsky.social · 03/04/2025
would you like to learn something new? why not about Brazil 🇧🇷? it could be useful if we meet at a symposium 🤭 | youtu.be/poM7eGygK5E?...
youtu.be
BRAZILIAN HISTORY (taught by a brazilian teacher!)
YouTube video by Débora Aladim
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Nikolas Chaves @nikolaschaves.bsky.social · 23/03/2025
Saturday news from Brazil: [Operation seizes nearly 60000 genetically modified fish] 🤯 "[One of the main targets was the municipality of Muriaé MG, where, in 2022, the presence of transgenic fish was confirmed, wildely in the region rivers.]"
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