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Merissa Huei-Hsuan Tsai

@hueihsuantsai.bsky.social

23 Posts162 Follower160 Folgt
Plant & Cell Physiology@plantcellphysiol.bsky.social · 2w ago

How do plant-soil feedbacks & defense pathways differ if they are induced by exogenous #phytohormones or #herbivory? These are some of the questions posed by PCP budding Editor, Merissa Huei-Hsuan Tsai @hueihsuantsai.bsky.social 🆓 doi.org/10.1093/pcp/... #PlantScience #PlantImmunity

Schematic overview showing defense-induced rhizosphere shifts and density-gated plant-soil feedback systems in B. oleracea.The diagram is split into the initial 'Conditioning phase' (left) where both the JA and SA pathways are induced by either phytohormone application (MeJA, SA) or herbivory (M. brassicae caterpillars; M. persicae aphids). The JA-pathway induction depleted Proteobacteria, mainly the genus Massilia, in the rhizosphere, while both pathways enriched a shared set of general stress-responsive microbes, including Planctomycetota (bacteria) and Mortierellomycota (fungi). The 'Feedback phase' is shown in the right panel: second-generation plants grown in conditioned soils were challenged with caterpillars or aphids; for clarity, only the SA-conditioned soil under aphid challenge is illustrated, as this was the only combination for which a soil-legacy effect on herbivore performance was detected. The soil legacy effect was not detectable under high aphid density, but became apparent under low aphid density. The diagram concludes that SA-conditioned soil from the conditioning phase is passed into the feedback phase. Figure taken from Huei-Hsuan Merissa Tsai, Not whether, but when: contextual rules for defense-induced plant–soil feedbacks, Plant and Cell Physiology, Volume 67, Issue 9, September 2026, Pages 1458–1460, https://doi.org/10.1093/pcp/pcag116
Merissa Huei-Hsuan Tsai@hueihsuantsai.bsky.social · 2mo ago

Happy to share my first commentary as a PCP Budding Editor! Not whether, but when: contextual rules for defense-induced plant-soil feedbacks

Ákos T Kovács@evolvedbiofilm.bsky.social · 11mo ago

Localized glutamine leakage shapes root microbiome @cp-trendsmicrobiol.bsky.social Spotlight from Zheng Qing Fu/Youxiong Que on the recent publication by @hueihsuantsai.bsky.social et al from @nikogeldner.bsky.social www.cell.com/trends/micro...

Localized glutamine leakage shapes root microbiome

Root exudates are vital for guiding microbial dynamics in the rhizosphere. Nevertheless, the key component in root exudates responsible for defining the root microbiome has remained obscure. Tsai et a...

cell.com

Merissa Huei-Hsuan Tsai@hueihsuantsai.bsky.social · 11mo ago

Huge shoutout to the #PMS2025 live tweeters @evolvedbiofilm.bsky.social, @courtneyherms.bsky.social, and @gstringlis.bsky.social for their amazing coverage! Thanks for keeping the excitement alive and the community connected throughout the symposium 👏

Ákos T Kovács@evolvedbiofilm.bsky.social · 11mo ago

What a nice surprise to receive a small appreciation (🇪🇸jamón&cheese 😋) for our social media activities at #PMS2025 together with @courtneyherms.bsky.social and @gstringlis.bsky.social

Merissa Huei-Hsuan Tsai@hueihsuantsai.bsky.social · last yr.

Very excited to see our @nikogeldner.bsky.social lab x Feng Zhou lab work featured on the cover of Science! (1/5) We reveal how root architecture and nutrient leakage shape spatial patterns of microbial colonization, moving beyond traditional models of uniform exudation.

Science Magazine@science.org · last yr.

Using precise spatial and temporal analysis, researchers in Science provide insight into how bacteria around the root interact both with the plant and with each other. Learn more in this week's issue: https://scim.ag/3WgNajk

A confocal microscopy image shows root-colonizing bacteria clustering around an emerging lateral root, where localized glutamine leakage induces spatially confined reporter activity.