Plant & Cell Physiology

@plantcellphysiol.bsky.social

Plant & Cell Physiology (PCP) – an academic society journal supporting the plant science community #OUP #JSPP
Follow us on Bluesky for news and updates from the journal.
Website https://academic.oup.com/pcp
E-mail: [email protected]

@plantcellphysiol.bsky.social Oct 12, 2026, 10:01 AM

Out in the cold...🥶

How do seasonal temperature fluxes affect frost tolerance in grasses?

Górna et al show genotype-specific leaf lipidome remodelling in high- & low-tolerant varieties of Festuca, with stress-induced TAG accumulation acting as a protective metabolic buffer

doi.org/10.1093/pcp/...

Schematic timeline of the experiment performed on Festuca arundinacea, illustrating the control conditions (C) and four other phases of the experiment: PA, CA, DA, and RA. Control (C) represents the initial state of the experiment. CA represents the twenty-first day of cold acclimation. DA represents the 1st (DA-1) and 7th (DA-7) days of de-acclimation. RA represents the 3rd (RA-3) and 21st (RA-21) days of re-acclimation. Figure taken from Julia Górna, Dawid Perlikowski, Saleh Alseekh, Marcin Rapacz, Alisdair R Fernie, Magdalena Wójcik-Jagła, Arkadiusz Kosmala, Remodeling of leaf lipidome during cold acclimation, de-acclimation, and re-acclimation influences frost tolerance of Festuca arundinacea, Plant and Cell Physiology, Volume 67, Issue 9, September 2026, Pages 1533–1556, https://doi.org/10.1093/pcp/pcag073

@plantcellphysiol.bsky.social Oct 9, 2026, 8:46 AM

From PAC-MAN to MirMAN...🎮

Read the accompanying Commentary by Budding Editor @ryotachibana.bsky.social to find out more about what's shaping root system architecture....

🔗 doi.org/10.1093/pcp/...

#PlantScience
#RootDevelopment
#Brassinosteroids

@plantcellphysiol.bsky.social Oct 7, 2026, 10:02 AM

MAD(s) about the scent...👃💐

Ren et al identify the complex regulatory transcriptional network mediated by MADS-box transcription factor OfDEFA, which controls monoterpene linalool volatile production, giving sweet Osmanthus its characteristic floral aroma💐

doi.org/10.1093/pcp/...

#PlantScience

schematic diagram of the gene networks involved in OfDEFA promotion of linalool biosynthesis in flowers of sweet Osmanthus through a dual-layer regulatory mechanism: it directly activates the transcription of OfTPS1a and OfTPS7 and indirectly induces the expression of the positive regulatory factor of linalool biosynthesis OfMYB21, thereby promoting linalool biosynthesis.
Image taken from fig 7 of Feiyan Ren, Jia Wang, Tingting Shi, Wuwei Zhu, Chenyu Wei, Chunling Zhang, Xiulian Yang, Lianggui Wang, Yuanzheng Yue, The MADS-box transcription factor OfDEFA orchestrates floral aroma biosynthesis in Osmanthus fragrans flowers through a dual-layer transcriptional regulatory network, Plant and Cell Physiology, Volume 67, Issue 9, September 2026, Pages 1520–1532, https://doi.org/10.1093/pcp/pcag072

@plantcellphysiol.bsky.social Oct 6, 2026, 10:54 AM

Another missing link..?

Li, Jin et al. show how #MYB factor (MYB41) is involved in the crosstalk between cell wall mannose & #brassinosteroid signalling pathways, thereby promoting lateral root development in #Mirabilis jalapa

doi.org/10.1093/pcp/...

#PlantSignalling
#PlantHormones
#PlantScience

Proposed model for MirMAN-mediated mannose regulation of lateral root development. MirMAN-mannose activates BR biosynthesis via AtMYB41, which in turn potentiates auxin signaling, ultimately working synergistically to promote root development.
Image taken from Hui Li, Xun Jin, Mengyao Rong, Sitong Guo, Caiyu Yang, Dongxu Wang, Hui Ma, Jingwei Lin, Shuisen Chen, Ming Zhong, Zhifu Guo, Mirabilis jalapa mannanase-mediated mannose promotes root development in Arabidopsis via the MYB41-DWF4 module regulating brassinosteroid signaling pathways, Plant and Cell Physiology, Volume 67, Issue 9, September 2026, Pages 1489–1502, https://doi.org/10.1093/pcp/pcag053

@yokoyama-ryo.bsky.social Oct 5, 2026, 11:14 AMReposted by @plantcellphysiol.bsky.social

Convergent Retention of VIPP1 over PspA in Photosynthetic Lineages academic.oup.com/pcp/article/... @plantcellphysiol.bsky.social

@plantcellphysiol.bsky.social Oct 5, 2026, 11:43 AM

The missing link...?

Hwang et al provide evidence linking #starch biosynthesis to #photosynthesis via starch phosphorylase 1 (Pho1); specifically, by demonstrating its ability to form multi-protein complexes with starch metabolism enzymes & PSI subunits

doi.org/10.1093/pcp/...

#PlantScience

Schematic illustration summarising protein–protein interactions involving Pho1 and stromal PSI subunits. Orange circles indicate HaloTag fusions. Solid lines indicate interactions detected by Y2H assays. Arrows show the direction of combination in the Y2H assay, from GBD fusion (bait) toward GAD fusion (prey).
Image taken from figure 6, Seon-Kap Hwang, Li Tian, Chun-Yeung Ng, Thomas W Okita, Starch phosphorylase acts as a pivotal scaffold connecting starch metabolism enzymes with photosystem I subunits, Plant and Cell Physiology, Volume 67, Issue 8, August 2026, Pages 1430–1441, https://doi.org/10.1093/pcp/pcag063

@plantcellphysiol.bsky.social Oct 2, 2026, 2:01 PM

It's as easy as ABC...and G!

Kanazawa et al report how specialized metabolites in the #liverwort #Marchantia are synthesized & sequestered in oil bodies - a process involving ABCG transporters

🔗 doi.org/10.1093/pcp/...

#PlantScience
#PlantMetabolism

Schematic model of the proposed biosynthetic pathways for sesquiterpenoid and marchantin accumulation in the oil bodies of M. polymorpha.
Image taken from figure 6 of article by Takehiko Kanazawa, Tomoko Kawaguchi, Yuta Moriwaki, Kan-ichi Iwasaki, Takashi Ueda, Kenji Matsui, ABCG transporters are involved in the accumulation of specialized metabolites in the oil bodies of Marchantia polymorpha, Plant and Cell Physiology, Volume 67, Issue 8, August 2026, Pages 1442–1454, https://doi.org/10.1093/pcp/pcag069

@plantcellphysiol.bsky.social Oct 2, 2026, 11:31 AM

Floral Friday...🪷

Mao et al show that orchid #MYB factor (PaMYB55) positively regulates cell expansion & wall integrity by promoting lignin & cellulose biosynthesis, contributing to both floral morphology & defense against pathogen spread

doi.org/10.1093/pcp/...

#PlantScience

Images showing the effects of VIGs silencing of PaMYB55 leading to a decrease in cellulose and lignin content in the peduncle. (a, b) panels show inflorescence with flowers from mock (a) and PaMYB55-VIGS (b) plants. Panels c,d, show close-ups of the peduncles shown in (a) and (b). Panels e,f, show distribution of cellulose and lignin examined by CLSM. panels g-l show close-up images of cellulose (g), lignin (h), and merged (i) signals from the boxed region in (e) of the mock peduncle.
Image taken from figure 6 of Wan-Ting Mao, Wei-Han Hsu, Pei-Tzu Lin, Chang-Hsien Yang, PaMYB55 regulates cellulose and lignin deposition to control floral organ development, cell wall integrity, and pathogen resistance in Phalaenopsis orchids, Plant and Cell Physiology, Volume 67, Issue 8, August 2026, Pages 1414–1429, https://doi.org/10.1093/pcp/pcag062

@plantcellphysiol.bsky.social Sep 30, 2026, 2:14 PM

🔥Hot off the press🔥

The new Issue of PCP is out!🌱

Volume 67, Issue 9, September 2026 🍂
academic.oup.com/pcp/issue/67/9

The cover image shows a 4-month-old red 'Murasaki' gromwell plant native to Japan, used to unlock the mysteries of the #shikonin biosynthesis pathway, see
doi.org/10.1093/pcp/...

an overhead view of a 4-month-old red 'Murasaki' gromwell plant native to Japan; image courtesy of Kazufumi Yazaki, Kyoto University

@plantcellphysiol.bsky.social Sep 30, 2026, 9:07 AM

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

@plantcellphysiol.bsky.social Sep 29, 2026, 10:04 AM

Read our research highlights for the August issue and find out more about the first authors responsible for the work!

#ECR 🤩
#Marchantia

🛋️ academic.oup.com/pcp/pages/re...

5 Head shots of the first authors whose works have been highlighted in the august issue of PCP

@plantcellphysiol.bsky.social Sep 29, 2026, 9:37 AM

Great to see our former #ECR Budding Editors doing so well in their independent careers! 🤩

Revisit Anuphon's earlier Commentary here: doi.org/10.1093/pcp/...

@plantcellphysiol.bsky.social Sep 29, 2026, 8:57 AM

In need of a trim...?💇‍♂️

Albornos et al. show how alterations in galactose side chains of type II arabinogalactans affects pectin & hemicellulose deposition in #Arabidopsis secondary cell walls, which in turn influences recalcitrance to enzymatic degradation

🔗 doi.org/10.1093/pcp/...

#PlantScience

12 panels showing cross sections of basal floral stem internodes from WT and 35S::βV-Gal.1 and .2 plants. Green GFP signals show immunolocalization of low-methylated HG (LM19), high-methylated HG (LM20), xylan/arabinoxylan (LM11), and glucuronoxylan (LM28) in the different genotypes. Images taken from Figure 6, Lucía Albornos, Paula Iriondo-Ocampo, Iván Campos-Seoane, Berta Dopico, Ignacio Martín, Trimming galactose side chains of arabinogalactan proteins alters pectin and hemicellulose deposition in secondary cell walls of Arabidopsis thaliana floral stem internodes, Plant and Cell Physiology, Volume 67, Issue 8, August 2026, Pages 1385–1398, https://doi.org/10.1093/pcp/pcag060

@plantcellphysiol.bsky.social Sep 28, 2026, 5:22 PM

Short cuts....✂️

Niwa et al demonstrate the requirement of an #Arabidopsis TITAN-like gene in U12-type splicing of introns starting with AT and ending in AC, which is homologous to #Human centrosomal AT–AC splicing factor #CENATAC

doi.org/10.1093/pcp/...

#PlantScience
#IntronSplicing

@plantcellphysiol.bsky.social Sep 25, 2026, 12:27 PM

Lost in Translation...

Nishii et al show that thermospermine-dependent thiolation of tRNA is important for #xylem development as it influences upstream open reading frame (uORF)-mediated translational control of key developmental regulators

doi.org/10.1093/pcp/...

#PlantDevelopment
#PlantScience

Graphical abstract showing how thermospermine-dependent thiolation of tRNA influences upstream open reading frame (uORF)-mediated translational control of key developmental regulators (LHW and SACL3).
Image taken from: Yuichi Nishii, Daichi Araki, Mitsuru Saraumi, Taku Takahashi, Involvement of tRNA thiolation in uORF-mediated translational regulation during Xylogenesis in Arabidopsis thaliana, Plant and Cell Physiology, Volume 67, Issue 8, August 2026, Pages 1346–1355, https://doi.org/10.1093/pcp/pcag055

@plantcellphysiol.bsky.social Sep 25, 2026, 10:42 AM

One step closer to sustainable #agriculture...?

www.the-microbiologist.com/news/study-r...

Research article: doi.org/10.1093/pcp/...

#PlantScience

@plantcellphysiol.bsky.social Sep 23, 2026, 9:42 AM

What determines the enantiomeric composition of pinoresinol & lariciresinol (i.e. upstream components of the #lignin biosynthesis pathway) in plants?

▶️Tutihashi et al. provide evidence of selective enzyme action as a key determinant in Daphne genkwa...

🔗 doi.org/10.1093/pcp/...

#PlantScience

Schematic overview of findings by Fernando Satoshi Tutihashi, Mitsuki Hirota, Masaomi Yamamura, Keisuke Kobayashi, Takefumi Hattori, Yuki Tobimatsu, Björn Robert Hamberger, Toshiaki Umezawa, Pinoresinol/lariciresinol reductases and secoisolariciresinol dehydrogenases involved in the specific production of (+)-enantiomer of matairesinol in Daphne genkwa, Plant and Cell Physiology, Volume 67, Issue 8, August 2026, Pages 1328–1345, https://doi.org/10.1093/pcp/pcag054
showing how DgPLRs selectively reduce (−)-lariciresinol but not (+)-lariciresinol, resulting in the formation of (+)-secoisolariciresinol, while DgSIRDs selectively oxidize (+)-secoisolariciresinol over (−)-secoisolariciresinol, yielding (+)-matairesinol. Thus, the selectivity of DgPLRs for lariciresinol enantiomers, and of DgSIRDs for secoisolariciresinol enantiomers, are responsible for the accumulation of nearly enantiomerically pure (+)-secoisolariciresinol and enantiomerically pure (+)-matairesinol in D. genkwa.

@plantcellphysiol.bsky.social Sep 22, 2026, 12:38 PM

*Extended call for papers*

We're still accepting submissions for the Special issue on ‘Growth and Development in Fluctuating Environments’

See below or click here for more details:
academic.oup.com/pcp/pages/sp...

✉️ Contact us by email: pcp.editorialoffice[at]oup.com

@plantcellphysiol.bsky.social Sep 22, 2026, 8:58 AM

Divide and conquer..🌿

Kawamura et al. show that plant-specific SABATH #methyltransferases independently acquired developmental regulatory roles (in part acting via the #gibberellin pathway) in #Marchantia via parallel evolution

🔗 doi.org/10.1093/pcp/...

#PlantScience
#PlantHormones
#PlantEvoDevo

Phylogenetic tree of SABATH family proteins in plants, with the MpSABATH proteins shown in dark blue. Image taken from Figure 1d of Shogo Kawamura, Eita Shimokawa, Maika Ito, Isuzu Nakamura, Takehiko Kanazawa, Megumi Iwano, Rui Sun, Yoshihiro Yoshitake, Shohei Yamaoka, Shinjiro Yamaguchi, Takashi Ueda, Misako Kato, Takayuki Kohchi, A SABATH family enzyme regulates development in part via the gibberellin-related pathway in the liverwort Marchantia polymorpha, Plant and Cell Physiology, Volume 67, Issue 8, August 2026, Pages 1316–1327, https://doi.org/10.1093/pcp/pcag039

@plantcellphysiol.bsky.social Sep 21, 2026, 11:13 AM

🔥Hot off the press: doi.org/10.1093/pcp/...

@dekatarousanbs.bsky.social & colleagues @tohoku-life-news-e.bsky.social have developed a #CRISPR/Cas9 system based on ribozyme-gRNA-ribozyme (RGR) technology for loss of function analysis in #ferns (& other plant species)

#PlantScience
#PlantEvoDevo

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