Results 11 to 20 of about 27,873 (200)

Sphaerochara canadensis (Charophyceae): A circumpolar species with a high temperature optimum. [PDF]

open access: yesJ Phycol
Abstract Sphaerochara canadensis, an aquatic macrophyte belonging to the Characeae, is described as a species with a circumpolar distribution and occurs in the polar (to boreal) zonobiomes, suggesting that it is cold‐stenothermic. A recent report of an occurrence in Lake Wolfgangsee, Austria, contradicted this assumption, prompting this study to ...
Böhm J   +4 more
europepmc   +2 more sources

Automated Detection and Monitoring of Ground-Nesting Bee Nests Using Drone Imagery and Deep Learning. [PDF]

open access: yesEcol Evol
We demonstrate the feasibility of integrating drone‐based image acquisition with deep learning to accurately detect soil mounds produced by ground‐nesting bees, indicating nest presence, and reliably distinguish them from other soil surface deposits. This approach has the potential to gain new insights into bee nesting biology and population dynamics ...
Tschanz P   +5 more
europepmc   +2 more sources

Bausteine zu einer Oral History der Wissenschaftsgeschichte Auf der Suche: von der Biologie und der Philosophie zur Wissenschaftsgeschichte. Interview mit Soraya de Chadarevian. [PDF]

open access: yesBer Wiss
Wie kann man einen historischen Blick auf das eigene Fach werfen? Diese Frage ist nicht einfach zu beantworten – will man einerseits nicht in einer Nabelschau und Hagiographie enden, andererseits aber auch keinen umfassenden Entwurf einer zukünftigen Historiographie vorlegen.
de Chadarevian S, Grote M, Te Heesen A.
europepmc   +2 more sources

PPR596 Is Required for nad2 mRNA Splicing and Complex I Biogenesis in Mitochondria of Arabidopsis thaliana. [PDF]

open access: yesPhysiol Plant
ABSTRACT Several genes in the mitochondria of angiosperms are interrupted by introns, and their posttranscriptional excision involves numerous nucleus‐encoded auxiliary factors. Most of these factors are of eukaryotic origin, among them members of the pentatricopeptide‐repeat (PPR) family of RNA‐binding proteins.
Peters L   +6 more
europepmc   +2 more sources

Bausteine zu einer Oral History der Wissenschaftsgeschichte Interview mit Dieter Hoffmann

open access: yesBerichte zur Wissenschaftsgeschichte, Volume 46, Issue 4, Page 378-412, December 2023., 2023
Abstract Wie kann man einen historischen Blick auf das eigene Fach werfen? Diese Frage ist nicht einfach zu beantworten – will man einerseits nicht in einer Nabelschau und Hagiographie enden, andererseits aber auch keinen umfassenden Entwurf einer zukünftigen Historiographie vorlegen.
Mathias Grote   +2 more
wiley   +1 more source

Differential expression of CCD4(4B) drives natural variation in fruit carotenoid content in strawberry (Fragaria spp.). [PDF]

open access: yesPlant Biotechnol J
Summary Carotenoids are a diverse group of pigments imparting red, orange, and yellow hues to many horticultural plants, also enhancing their nutritional properties and health benefits. In strawberry, the genetic and molecular mechanisms regulating the natural variation of fruit carotenoid composition remain largely unexplored.
Amaya I   +9 more
europepmc   +2 more sources

Interaction between bacterial phytochromes Agp1 and Agp2 of Agrobacterium fabrum by fluorescence resonance energy transfer and docking studies. [PDF]

open access: yesFEBS Lett
The interaction between Agrobacterium fabrum phytochromes Agp1 and Agp2 was studied using FRET. Full‐length and truncated proteins with varied label positions provided spatial insights, narrowing down from many docking models to three. These models explain Agp2's reduction in Agp1 autophosphorylation, with Arg83 of Agp2 specifically evolved to interact
El Kurdi A   +7 more
europepmc   +2 more sources

Alexander von Humboldts und Aimé Bonplands Pflanzen im Herbarium der Universität Halle-Wittenberg

open access: yesHiN - Alexander von Humboldt im Netz. Internationale Zeitschrift für Humboldt-Studien, 2019
Zusammenfassung Die Pflanzensammlung (Herbarium) der Universität Halle-Wittenberg enthält eine beträchtliche Anzahl von Pflanzenexemplaren, die von Alexander von Humboldt und Aimé Bonpland während ihrer amerikanischen Reise (1799–1804) gesammelt wurden.
Natalia Tkach, Uwe Braun, Martin Röser
doaj   +1 more source

The gateway to chloroplast: re-defining the function of chloroplast receptor proteins [PDF]

open access: yes, 2012
Chloroplast biogenesis often requires a tight orchestration between gene expression (both plastidial and nuclear) and translocation of similar to 3000 nuclear-encoded proteins into the organelle.
Bölter, Bettina   +2 more
core   +1 more source

Akzeptanz, Rollendifferenzierung und geschlechtsspezifisches Verhalten in Dyaden bei Botanischen Bestimmungsübungen: Ein Vergleich zweier Medien

open access: yesZeitschrift für Didaktik der Biologie - Biologie Lehren und Lernen, 2002
Biologie; Medien; Botanik; Unterricht; Geschlechterrollen ...
E. Stahl
doaj   +1 more source

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