Systemic and Local Regulation of Root Growth by Vascular Trehalose 6‐Phosphate is Correlated With Re‐allocation of Primary Metabolites Between Shoots and Roots

Trehalose 6-phoshpate (Tre6P) consistently regulates root growth, with high Tre6P inhibiting and low Tre6P promoting primary and lateral root growth. It does so by altering the accumulation and alloc...

onlinelibrary.wiley.com

Generation of KARRIKIN INSENSITIVE2 loss-of-function mutants in Ceratopteris richardii using a CRISPR/Cas9 system based on ribozyme-gRNA-ribozyme (RGR) technology

Ayano Wu, Seto Yoshiya, Junko Kyozuka, Yuki Hata; Generation of KARRIKIN INSENSITIVE2 loss-of-function mutants in Ceratopteris richardii using a CRISPR/Cas

doi.org

GitHub - davidjhoey/PhyloDig: PhyloDig is a command line pipeline for automated homology mining across collections of protein and coding sequence databases. It combines HMMER searches, optional Pfam d...

PhyloDig is a command line pipeline for automated homology mining across collections of protein and coding sequence databases. It combines HMMER searches, optional Pfam domain filtering, and sequen...

github.com

Those Ancient Giant Fungi Weren’t Fungi After All

YouTube video by SciShow

youtube.com

The post-fertilization archegonium gene network of seedless plants contributed to the origin of seeds - Nature Communications

The authors identify conserved gene networks across fern and angiosperm reproductive development, including between the sporophyte ovule and the fern gametophyte egg-chamber. Repurposing of this netwo...

nature.com

Improved gene tree inference from removing alignment errors both from focal genes and when training substitution models

Abstract. Multiple Sequence Alignment (MSA) is a key step in phylogenetic analysis and is prone to error. Unfortunately, algorithms that remove likely alig

academic.oup.com

Lateral inhibition governs ancestral cellular patterning in fossil and extant liverworts

Highlighted Article: Comparative and mathematical analyses reveal that oil body cell patterning in fossil and extant liverworts is consistent with a local activation-lateral inhibition mechanism, poin...

journals.biologists.com

Engineering Auronidin Production in Marchantia polymorpha Enables a New Class of Plant-Derived Textile Pigments

Plant-derived pigments offer sustainable alternatives to synthetic colorants, yet their practical deployment in textiles is limited by restricted chemical diversity and low abundance. Liverworts represent a source of diverse chemical compounds, and the model liverworts Marchantia polymorpha are emerging as chassis for bioengineering and synthetic biology. Here, we report the biotechnological application of auronidins, a rare class of flavonoid pigments, as textile dyes. Using M. polymorpha, we engineered enhanced auronidin production through controlled expression of the R2R3-MYB transcription factor MpMYB14. We systematically benchmarked constitutive and inducible gene expression systems, including heat-shock, glucocorticoid receptor, and β-estradiol (XVE) circuits, identifying inducible strategies that decouple biomass accumulation from secondary metabolite production while achieving high pigment yields. Extracted auronidins were used to dye cotton yarn directly, demonstrating the feasibility of auronidins for textile dyeing. Our results establish M. polymorpha as a versatile plant chassis for programmable secondary metabolite production and introduce auronidins as a promising natural pigment platform for sustainable textile biotechnology.

pubs.acs.org

Marchantia stem cell maintenance and re-establishment are controlled by MpPIN1-mediated auxin transport and ARF signalling

Meristem organization in land plants depends on coordinated auxin distribution, transport and response, yet how these processes are integrated during vegetative growth of the gametophyte of non-seed p...

biorxiv.org

Why paying peer reviewers works, according to a journal’s editor-in-chief

A biology journal that paid peer reviewers found that the approach cut the time to a first editorial decision by 85% and maintained high-quality reviews.

nature.com

A chromosome-scale super-pangenome of the lichen genus Peltigera reveals genome architecture and expanded interaction repertoires shared across pathogenic and mutualistic fungi

Fungi engage in associations with other organisms across a continuum from pathogenic to mutualistic lifestyles. Hence, they require a compendium of molecular capacities, including partner recognition,...

doi.org

Herbaria provide a valuable resource for obtaining informative mRNA

Although DNA has built the framework for molecular insights from museum collections, the utility of archival RNA remains largely unexplored. Likely a consequence of the known instability of RNA relative to DNA, this has effectively precluded the use of herbaria for transcriptomics. Here, we challenge the assumption that herbaria cannot be used for transcriptomics by assembling transcriptomes from RNA extracted from herbarium specimens. Through systematic comparison of transcriptomes from fresh-collected, silica-dried, and archival specimens, we demonstrate the suitability of herbarium-derived RNA for transcriptomics. We show the practical applicability of archival mRNA by functionally validating a plant immune receptor synthesized from a specimen collected in 1956. These results contradict the community consensus regarding archival RNA and open the door to subsequent transcriptomic explorations of rare and extinct plant species. Our findings highlight the importance of preserving and utilizing the diversity embedded within herbarium collections.

genome.cshlp.org