20 августа, 2025

Новости науки и практики // Август 2025

The N-terminal domains of NLR immune receptors exhibit structural and functional similarities across divergent plant lineages

Chia et al show that CC and TIR domains from nonflowering plants retain immune functions through translineage activation of cell death in Nicotiana benthamiana.

https://academic.oup.com/...7643766

Guard cells on the adaxial and abaxial leaf surfaces use different compositions of potassium ion channels to drive light-induced stomatal opening

Wei et al demonstrated that differences in potassium channel composition explain why abaxial stomata respond more strongly to light compared to adaxial stomata.

https://www.nature.com/...02026-5

A major trade-off between growth and defense in Arabidopsis thaliana can vanish in field conditions

Lundberg et al found that the growth-defense trade-off linked to ACD6 activity can disappear under natural field conditions, affecting microbiome assembly and disease resistance.

https://journals.plos.org/...3003237

Conservation and divergence of UVR8-COP1/SPA-HY5 signaling in UV-B responses of Marchantia polymorpha

Liang et al showed that the liverwort Marchantia polymorpha conserves UV-B signaling pathways found in higher plants, with MpUVR8 functioning as a homodimer that monomerizes upon UV-B exposure.

https://www.biorxiv.org/...665153v1

Study uncovers technologically appealing trick used by microalgae to manipulate light

Skoltech researchers discovered a sophisticated light manipulation strategy in microalgae that boosts photosynthesis, with potential applications in bioenergy.

https://phys.org/...microalgae.html

A developmental switch controls cell-to-cell transport in roots via pectin-linked plasmodesmata changes

Jacquier et al demonstrated that plasmodesmatal transport continues in differentiated roots, regulated by pectin modifications despite apoplastic barrier formation.

https://www.cell.com/...00233-3

Three-step biosynthesis of salicylic acid from benzoyl-CoA in plants

Liu et al identified a conserved three-step pathway in seed plants for salicylic acid synthesis, validated using Nicotiana benthamiana.

https://www.nature.com/...09185-7

Members of the MYB68 subclade orchestrate cork differentiation by regulating stem cell proliferation and suberin deposition

Molina et al showed that MYB68 transcription factors activate suberin biosynthesis while repressing cork cambium proliferation, coordinating cork differentiation.

https://www.cell.com/...00819-8

Root morphology and anatomy respond similarly to drought and flooding in two wheat cultivars

Researchers revealed that wheat roots respond similarly to both drought and flooding with anatomical changes like aerenchyma formation and suberin deposition.

https://academic.oup.com/...mcaf152

3D growth: the diversity of strategies in brown algae

A review describes the diverse 3D growth strategies of brown algae and compares them to multicellular development in other eukaryotes.

https://academic.oup.com/...mcaf161

When plants attack themselves: Protein mix-ups spark self-destructive immune alarms

Researchers studied how protein incompatibilities can trigger autoimmune responses in plants, leading to hybrid necrosis.

https://phys.org/...immune-alarms.html

ERAD machinery controls the conditional turnover of PIN-LIKES in plants

A new study shows that ER-associated degradation (ERAD) machinery regulates the proteasome-dependent turnover of auxin transporters PILS, shaping growth responses.

https://biorxiv.org/...663279

Translational insights into abiotic interactions: From Arabidopsis to crop plants

Roeder et al reviewed how findings from Arabidopsis translate to crops, showing that conserved regulatory networks shape abiotic stress responses differently across species.

https://academic.oup.com/...koaf140

WALLFLOWER, an Arabidopsis receptor-like kinase, is polarized in root epidermal cells where it represses cell elongation impacting root waving

Pérez-Henríquez et al identified WALLFLOWER, a receptor kinase that shapes root waving by repressing cell elongation in polarized epidermal cells.

https://www.biorxiv.org/...664984v1

Optical observations of embolism in three conifers overestimate the vulnerability of stem xylem to hydraulic dysfunction

Losso et al found that optical techniques may overestimate conifer drought vulnerability compared to ultrasonic acoustic emission methods.

https://academic.oup.com/...8046081

GHR motif discovery reveals new mechanism in plant miRNA processing

Scientists identified the GHR motif, uncovering a new mechanism that regulates plant microRNA processing and gene expression.

https://phys.org/...ghr-motif.html

Sugars and organic acids save amaranth from zinc poisoning

Russian researchers found that amaranth mitigates zinc toxicity through metabolic adjustments involving sugars and organic acids.

https://phys.org/...zinc-poisoning.html

Thermal behaviour of lipids in short-lived seeds of Australian rainforest species

Research shows that crystallisation and melting of triacylglycerols affect seed longevity, offering tools to predict storage sensitivity.

https://academic.oup.com/...mcaf181

Back to the basics: Minimal genomes yield viable plants for biotech applications

Salk Institute scientists showed that deleting large duplicated genome regions in plants can still yield viable individuals, suggesting biotech potential.

https://phys.org/...genomes-yield.html

Genome-scale metabolic model can increase potato yield

Researchers developed potato-GEM, a genome-scale metabolic model, to guide breeding for crops with better stress tolerance and higher yields.

https://phys.org/...potato-yield.html

How a rare cycad's wax crystals conjure blue without pigment

Scientists revealed that the blue color of the rare cycad Encephalartos horridus comes from wax crystal structures rather than pigments.

https://phys.org/...cycad-wax.html

Decoding sweet potato DNA: New research reveals surprising ancestry

A Nature study uncovered unexpected ancestry of sweet potatoes, deepening knowledge of their evolution and importance for food security.

https://www.nature.com/...02079-6