Andrea Ghirardo's Avatar

Andrea Ghirardo

@andreaghirardo

Scientist @Helmholtz-munich.de Germany. Interested in plant responses to abiotic and biotic stresses | #VOC #metabolomics #climatechange | Views are my own. https://orcid.org/0000-0003-1973-4007

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21.11.2024
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Latest posts by Andrea Ghirardo @andreaghirardo

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Formate Links Photorespiration to DNA Methylation In a groundbreaking study published in Nature Plants, researchers have unveiled a novel biochemical link connecting photorespiration, a fundamental metabolic pathway in plants, to DNA methylation via

scienmag.com/formate-link...

26.02.2026 14:13 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Huge congratulations to all!
@helmholtzmunich.bsky.social
@tum.de

26.02.2026 10:39 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

A metabolic link between #photorespiration and epigenetic regulation underlying stress memory. Therefore, climate-driven shifts in photorespiratory flux under rising CO2, heat, and drought may reprogram plant epigenomes and influence acclimation and adaptation.

@natplants.nature.com

26.02.2026 10:39 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Photorespiration is linked to DNA methylation by formate as a one-carbon source - Nature Plants This study reveals that Arabidopsis reassimilates formate produced during photorespiration via the cytosolic folate cycle to fuel DNA methylation, forming a metabolic–epigenetic bridge that links elev...

Happy that our paper is now out in Nature Plants:

"Photorespiration is linked to DNA methylation by formate as a one-carbon source" led by @martingroth.bsky.social with @valentin-ha.bsky.social as first author.

doi.org/10.1038/s414...

#Epigenetics #ClimateChange #OneCarbonMetabolism

26.02.2026 10:39 πŸ‘ 4 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Great news: our project on #chemodiversity #herbivorydiversity has been funded by @dfg.de and @snf-fns.ch Looking forward to starting this exciting collaboration with @MichaelEisenring @thorstengrams.bsky.social @func-metabo-lab.bsky.social Congratulations to everyone involved!
@tum.de

11.02.2026 12:16 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Modulation of the leaf transcriptome of Quercus robur by specialist and generalist herbivorous insects Abstract. Plants deploy complex transcriptional responses to herbivores yet differences in the responses to generalist versus specialist insects, especiall

New paper out! πŸŽ‰ @mmader.bsky.social et al. show how oak trees mount distinct gene-expression defence responses to specialist vs. generalist herbivores. Great long-standing collaboration with Birgit Kersten, Hilke SchrΓΆder, and @jpschnitzler.net . Thanks to all coauthors!
doi.org/10.1093/tree...

11.02.2026 11:59 πŸ‘ 3 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Rajarshi Sanyal

14.01.2026 16:46 πŸ‘ 0 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Helpful to see their estimates. Great summary figure!

14.01.2026 20:56 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Oaks can be extraordinarily beautiful in winter too. A picture near my home in #Andechs. Wishing everyone a peaceful and inspiring New Year 2026! 😊
#Oaks #TreeBeauty #WinterLandscape #ForestEcology #NewYear2026

31.12.2025 12:56 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

So true, a year of chaos: the planned closure of the environmental institute #EUS at @helmholtzmunich.bsky.social and the dismissal of scientists will severely hamper #climatechange research and jeopardize national funding projects supported by @dfg.de

28.12.2025 08:35 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

It’s deeply concerning to see climate science in danger these days! Save NCAR! @ncar-ucar.bsky.social

17.12.2025 19:03 πŸ‘ 3 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

@plantspeopleplanet.bsky.social

17.12.2025 17:53 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

#ClimateChange and urbanization require climate-resilient food systems. Thanks to @fab-fromhell.bsky.social, #RaffaellaBalestrini and all the collaborators at #CNR in Italy!

#PPP #NewPhytologistFoundation @newphyt.bsky.social

17.12.2025 17:37 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Integrating tunable LED‐induced plant responses with novel solar cell technologies for energy‐efficient agrivoltaic systems The increasing demand for sustainable food production requires innovative solutions that balance productivity, resource efficiency, and environmental impact. Vertical Farming Systems (VFSs) offer a p...

Another paper published today 😊

nph.onlinelibrary.wiley.com/doi/10.1002/...

We discuss how #VerticalFarming and #Agrivoltaics can improve #SustainableFood production by coupling perovskite and dye-sensitized solar cells together with light β€˜recipes’.
@jpschnitzlerlab.bsky.social

17.12.2025 17:22 πŸ‘ 3 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0
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Modulation of the leaf transcriptome of Quercus robur by specialist and generalist herbivorous insects Abstract. Plants deploy complex transcriptional responses to herbivores, yet, differences in the responses to generalist versus specialist insects, especia

#Plant-Herbivore-Interactions
#Oak tree #transcriptomes respond differently to attacks by generalistic or specialistic herbivores. A new paper from our long-term partnership with #BirgitKersten, #HilkeSchroder & #MalteMadee from @thuenen.de Institute #ForestGenetics, @andreaghirardo.bsky.social

16.12.2025 15:44 πŸ‘ 4 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Improved modelling of biogenic emissions in human-disturbed forest edges and urban areas - Nature Communications GEE-MEGAN, a cloud-native MEGAN2.1 extension on Google Earth Engine, uses multisource satellite data to generate near-real-time BVOC emission estimates at 10–30 m resolution, refining emission charact...

Real-time estimates of #BVOC emissions with high resolution (10-30m) using #GEE-MEGAN model, which combines satellite data on land cover and vegetation. A great tool for studying the impacts of BVOCs in a rapidly urbanizing, warming world.

www.nature.com/articles/s41...
@natcomms.nature.com

14.12.2025 11:01 πŸ‘ 0 πŸ” 1 πŸ’¬ 0 πŸ“Œ 1
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EAACI Guidelines on the Importance of Green Space in Urban Environments for Allergy and Asthma Prevention The allergy and asthma epidemic in urban societies following World War II is mostly caused by changes in the environment, diet and lifestyle. Disconnection of urban populations from the wider environ...

EAACI guidelines on the impact of the green environment on allergies and asthma

onlinelibrary.wiley.com/doi/10.1111/...

13.12.2025 12:15 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

We owe it to early-career researchers, and to the public who funds science, to ensure continuity, stability, and responsible use of research resources.
Today is a sad day.

08.12.2025 21:14 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

In times of institutional restructuring, it’s often the youngest scientists who face the greatest uncertainty. Seeing PhD candidates lose supervision or access labs and facilities, while publicly funded projects may remain unfinished, might be frustrating, surely concerning.

08.12.2025 21:13 πŸ‘ 2 πŸ” 2 πŸ’¬ 2 πŸ“Œ 0

Great work of #MirjamMeischner, congrats!

11.11.2025 12:06 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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🚨 New Resource & Preprint Alert 🚨

This resource collected by the mFam consortiun led by Gerd Balcke and Steffen Neumann contributes >7000 mass spectra of 2,126 unique metabolites to the public domain through MassBank.
Preprint: lnkd.in/eYcJMqYn
Interactive plot: lnkd.in/egBaTTNH

#CompMetabolomics

01.11.2025 19:14 πŸ‘ 16 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

Isoprene, the most abundant biogenic VOC, not only shapes atmospheric chemistry but also acts as an airborne signal in short-distance plant–plant communication. #isoprene #PlantResistance

02.09.2025 09:11 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 1
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Volatile‐Mediated Plant Defense Networks: Field Evidence for Isoprene as a Short‐Distance Immune Signal Transgenic silver birch (Betula pendula) with altered isoprene emission capacities enhanced pathogen resistance in neighboring Arabidopsis thaliana through a jasmonate-independent, salicylate-depende...

New paper out! onlinelibrary.wiley.com/doi/10.1111/...
Isoprene enhances disease resistance in neighboring Arabidopsis plants via LLP1-mediated immunity, demonstrated by a field study with transgenic birches.
#PeiyuanZhu @jpschnitzlerlab.bsky.social #VOC #PlantScience

02.09.2025 09:11 πŸ‘ 14 πŸ” 5 πŸ’¬ 1 πŸ“Œ 0

We explored metabolomic changes during the beneficial, growth-promoting effects of cultivating the Anabaena-azollae symbiosis, a sustainable nitrogen source for rice cultivation.

22.07.2025 07:50 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Co-Cultivation with Azolla Affects the Metabolome of Whole Rice Plant Beyond Canonical Inorganic Nitrogen Fertilization - Rice Azolla spp. are floating ferns used for centuries as biofertilizers to enrich the soil with inorganic nitrogen and improve rice yields. However, the molecular interactions between Azolla and co-cultiv...

Excited to share our latest publication originating from an Erasmus+ project with the University of Perugia and CNR! thericejournal.springeropen.com/articles/10....
#sustainability #metabolomics #UniPerugia #CNR @euerasmusplus.bsky.social

22.07.2025 07:50 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Drought-induced plant microbiome and metabolic enrichments improve drought resistance Plant-microbiome interactions are crucial in maintaining plant health and productivity under stress; however, little is known about these interactions under drought. Here, using wheat as a model, we combine genomics and culture-dependent methods to investigate the interactions between the soil, root, and rhizosphere microbiomes with rhizosphere metabolomes and plant phenotypes. We find that drought conditions promote microbial colonization in plant microbiomes, enriching Streptomyces coeruleorubidus and Leifsonia shinshuensis, while also increasing 4-oxoproline levels in the rhizosphere, potentially attracting S. coeruleorubidus. Consistently, genes facilitating microbial responses to drought, including the N-terminal acetyltransferase rimJ, are enriched, while S. coeruleorubidus and L. shinshuensis reintroduction promotes host drought resistance. Drought-legacy-effect experiments further support these benefits, with increased plant biomass and yield in the subsequent growth cycle under drought. Collectively, this study informs how drought-induced microbial and metabolite enrichments improve plant adaptation to abiotic stresses, potentially informing development of bio-based tools to mitigate drought effects.

Drought-induced plant microbiome and metabolic enrichments improve drought resistance

02.06.2025 16:38 πŸ‘ 1 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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A new metabolomic strategy using mass spectrometry and stable-isotope tracing to uncover unknown metabolic reactions.

www.nature.com/articles/s41...

#metabolomics #stable-isotope @natcomms.nature.com

02.06.2025 06:08 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
This is figure 3, which provides a synthetic diagram showing a summary of the results, including individual physiology (hydraulics and growth) and forest carbon dynamics.

This is figure 3, which provides a synthetic diagram showing a summary of the results, including individual physiology (hydraulics and growth) and forest carbon dynamics.

Drought is a growing issue in tropical rainforests. A study in Nature Ecology & Evolution revisits a long-term rainfall manipulation experiment in the Amazon to show that tree mortality was followed by community-level adjustments to reduced precipitation. go.nature.com/4kbQbfu πŸ§ͺ

02.06.2025 01:18 πŸ‘ 41 πŸ” 13 πŸ’¬ 3 πŸ“Œ 1
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Rice JA oxidases control JA-Ile levels to balance growth and defense. Loss of JAO boosts blast resistance but reduces early growth and yield, by diverting metabolic flux upstream of JA-Ile formation. #Phytohormons @plantphys.bsky.social

academic.oup.com/plphys/artic...

31.05.2025 09:18 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Very nice review!! Thank you Matt!

31.05.2025 09:07 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0