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Akademický článek

Parsimonious Model of Vascular Patterning Links Transverse Hormone Fluxes to Lateral Root Initiation: Auxin Leads the Way, while Cytokinin Levels Out.

Autor: Sedeer el-Showk, Hanna Help-Rinta-Rahko, Tiina Blomster, Riccardo Siligato, Athanasius F M Marée, Ari Pekka Mähönen, Verônica A Grieneisen

Publikováno v: PLoS Computational Biology, Vol 11, Iss 10, p e1004450 (2015)

An auxin maximum is positioned along the xylem axis of the Arabidopsis root tip. The pattern depends on mutual feedback between auxin and cytokinins mediated by the PIN class of auxin efflux transporters and AHP6, an inhibitor of cytokinin signalling

Externí odkaz: https://doaj.org/article/95cb548b82fd4fb78b15a8e85b987906

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Combined X-ray diffraction tomography imaging of tension and opposite wood tissues in young hybrid aspen saplings

Autor: Mira Viljanen, Hanna Help, Heikki Suhonen, Kirsi Svedström

Publikováno v: Wood Science and Technology.

Combining spatially localized X-ray diffraction (XRD) with X-ray microtomography (XMT) enables the mapping of the micro- and nanoscale structures simultaneously. The combination of these methods results in a powerful tool when considering the structu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ba4900ef6406b2bbc4cc285c1fae370d
https://doi.org/10.1007/s00226-023-01477-3

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Ultrastructural X-ray scattering studies of tropical and temperate hardwoods used as tonewoods

Autor: Patrik Ahvenainen, Mira Viljanen, Paavo A. Penttilä, Hanna Help, Kirsi Svedström

Publikováno v: 'IAWA Journal ', vol: 41, pages: 301-319 (2020)

The structure of hardwoods representing eight tropical and five temperate species was characterized from the atomistic level up to the cellular level using X-ray scattering, X-ray microtomography and light microscopy. The species were chosen for this

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96433514a4923a94332f9844d5460169
https://epn-library.esrf.fr/flora/jsp/index_view_direct_anonymous.jsp?record=doc:PUB_ILL:30420

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Mobile PEAR transcription factors integrate positional cues to prime cambial growth

Publikováno v: NATURE
Nature 565 (2019) 7740
Nature, 565(7740), 490-494

Apical growth in plants initiates upon seed germination, whereas radial growth is primed only during early ontogenesis in procambium cells and activated later by the vascular cambium1. Although it is not known how radial growth is organized and regul

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b06c735e6a0a9bbae050fe90fb914c0a
https://doi.org/10.1038/s41586-018-0839-y

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ELIMÄKI Locus Is Required for Vertical Proprioceptive Response in Birch Trees

Publikováno v: Current Biology-CB
Current Biology-CB, Elsevier, 2020, 30 (4), pp.589-599.e5. ⟨10.1016/j.cub.2019.12.016⟩
Current Biology-CB, 2020, 30 (4), pp.589-599.e5. ⟨10.1016/j.cub.2019.12.016⟩

International audience; Tree architecture has evolved to support a top-heavy above-ground biomass, but this integral feature poses a weight-induced challenge to trunk stability. Maintaining an upright stem is expected to require vertical propriocepti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02365c91074d33de4728ae157112f6a0
https://hal.inrae.fr/hal-02936730

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High-resolution synchrotron imaging studies of intact fresh roots reveal soil bacteria promoted bioremediation and bio-fortification

Autor: Hannu Mäkinen, Peter Cloetens, Mirko Holler, Ana Diaz, Ari-Pekka Honkanen, Hanna Help, Simo Huotari, Merja Lusa, Heikki Suhonen, Murielle Salomé

Plant-microbe interactions can be utilized in bio-based processes such as bioremediation and biofortification, either to remove hazardous radionuclides and heavy metals from the soil, or to increase the accumulation of desired elements into crops to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::179d27e4df647c4b4bb3c406b616524a

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ELIMÄKI locus is required for mechanosensing and proprioception in birch trees

The remarkable vertical and radial growth observed in tree species, encompasses a major physical challenge for wood forming tissues. To compensate with increasing size and weight, cambium-derived radial growth increases the stem width, thereby suppor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::846417b647498c0c93d19131a042befa
https://doi.org/10.1101/616474

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A core mechanism for specifying root vascular patterning can replicate the anatomical variation seen in diverse plant species

Autor: Ari Pekka Mähönen, Nathan Mellor, Hanna Help-Rinta-Rahko, Anthony Bishopp, John Vaughan-Hirsch, John R. King, Britta M. C. Kümpers, Ana Campilho, Shunsuke Miyashima

Publikováno v: Development (Cambridge, England)

Pattern formation is typically controlled through the interaction between molecular signals within a given tissue. During early embryonic development, roots of the model plant Arabidopsis thaliana have a radially symmetric pattern, but a heterogeneou

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8fd68a7a478ffaa8fb23c30f115102f7
http://hdl.handle.net/10138/301540

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The ELIMÄKI Locus is Required for Vertical Proprioception in Birch Trees

Publikováno v: SSRN Electronic Journal.

Tree architecture has evolved to support a top-heavy above-ground biomass, but this integral feature poses a weight-induced challenge to trunk stability. Maintaining an upright stem is expected to require vertical proprioception through feedback betw

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0548605598432cb8b40dc965ab449d61
https://doi.org/10.2139/ssrn.3444593

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Fertilizer and soil conditioner value of broiler manure biochars

Autor: Hanna Help, Lauri Sohlo, Kimmo Rasa, Riikka Keskinen, Jari Hyväluoma

Pyrolysis is an option for enhancing the sustainable management of broiler manure surpluses by producing a concentrated, hygienic char product with a fertilizer and soil conditioner value. In this study, the impacts of pyrolysis conducted at 350, 400

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3c3f80be6791cb9f9530150f6fcca1d
http://hdl.handle.net/10138/311884

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