Results 121 to 130 of about 80,122 (255)

Native Flora and Potential Natural Vegetation References for Effective Forest Restoration in Italian Urban Systems. [PDF]

Plants (Basel)
Blasi C, Capotorti G, Del Vico E, Bonacquisti S, Zavattero L.   +4 more
europepmc   +1 more source

Phylogenomic insights into the genus Tulipa (Liliaceae): Taxonomy, evolution, and biogeography

American Journal of Botany, EarlyView.
Abstract Premise Tulips are one of the best‐known geophytes, but their taxonomy remains convoluted and their evolutionary history poorly understood. Here, we used plastid genomes to identify some issues with current classification, understand the diversification history of the genus, and identify potential species linked to historical cultivation ...
Brett Wilson, Maarten J. M. Christenhusz, Nathanael Walker‐Hale, Natalya Beshko, Mariyo Boboev, Colin Clubbe, Davron Dekhkonov, Aibek Dolotbakov, Mehmet Firat, Thomas Freeth, Sjaak de Groot, Avni Hajdari, Georgy A. Lazkov, Ormon Sultangaziev, Komiljon S. Tojibaev, Ben J. M. Zonneveld, Kaiyrkul T. Shalpykov, Samuel F. Brockington   +17 more
wiley   +1 more source

Generation of the Camptothecin Scaffold by a Flavin‐Catalyzed Photooxidative Skeletal Reorganization

Angewandte Chemie, EarlyView.
The biosynthetic pathway of the anticancer drug precursor camptothecin involves an enigmatic skeletal reorganization from a 6/5/6 tetrahydro‐β‐carboline to a 6/6/5 pyrroloquinoline ring system. Here, we show that this transformation can be achieved by photooxidation with flavin cofactors, such as flavin mononucleotide (FMN) as catalysts.
Shenyu Liu, Zeliang Zhang, Benedikt Seligmann, Van Hung Bui, Tuan‐Anh Minh Nguyen, Thu‐Thuy T. Dang, Jakob Franke   +6 more
wiley   +2 more sources

Reproductive stages in lowbush blueberry (Vaccinium angustifolium) occur earlier with increasing temperature

American Journal of Botany, EarlyView.
Abstract Premise Climate change is altering the timing of many plant phenological events, yet most studies focus on flowering, with less attention given to later reproductive stages such as fruit development and ripening. Vaccinium angustifolium (lowbush blueberry) is an important perennial berry species that may be sensitive to these changes.
Jenna Floyd, Elise Cadiou, Alain G. Belliveau, Zoe A. Panchen, Terrell T. Roulston, Zoë Migicovsky   +5 more
wiley   +1 more source

Bridging Conservation Gaps: Evaluating Habitat Mapping Methods for Alpine River Ecosystems. [PDF]

Environ Manage
Winkelhues W, Wagner TC, Kudrnovsky H, Rethschulte C, Reich M.   +4 more
europepmc   +1 more source

Integrating developmental and macroevolutionary approaches reveals a staminodial origin of all alternisepalous organs in Caryophyllaceae

American Journal of Botany, EarlyView.
Abstract Premise The identity of sterile floral organs in second‐whorl, alternisepalous positions within Caryophyllaceae remains contentious, having been described as staminodes, “petaloids,” or petals homologous with those of other Pentapetalae. Limited ingroup and outgroup sampling and floral developmental data and inadequate phylogenetic comparative
Riley J. Rees, Andrea D. Appleton, John J. Schenk   +2 more
wiley   +1 more source

Welcome to paradise: Measuring vegetation responses to tourism and agricultural activity using Leaf Area Index in the Galapagos Islands. [PDF]

PLoS One
Rhodes LA, Tinoco JE, Sánchez GE, Moscoso B.   +3 more
europepmc   +1 more source

Ecological potential of natural pastures vegetation

Animal Husbandry and Fodder Production
Raisa R Dzhapova, Tatyana I Bakinova, Vita V Dzhapova   +2 more
openaire   +1 more source

Application of a novel schema for describing fossil fern foliage and investigating taxonomic and morphological change across the Cretaceous–Paleogene boundary in western North America

American Journal of Botany, EarlyView.
Abstract Premise The Chicxulub asteroid impact at the Cretaceous–Paleogene (K–Pg) boundary triggered a mass extinction 66 million years ago. Ferns thrived in the aftermath of the extinction, evidenced by the well‐documented “fern spore spike.” However, fern macrofossil records across the K–Pg boundary are less understood.
Fern B. Holian, Emily B. Sessa, Richard S. Barclay, Regan E. Dunn, Jacquelyn L. Gill, Kirk R. Johnson, S. Augusta Maccracken, Ian M. Miller, Jarmila Pittermann, Ellen D. Currano   +9 more
wiley   +1 more source

Seasonal variation in wind speed and oceanic salt spray favors delayed reproduction in coastal yellow monkeyflowers

American Journal of Botany, EarlyView.
Abstract Premise The optimal timing of reproduction depends on the relative risk and benefit of continued growth. These risks and benefits depend on the local environment, which varies seasonally. While temperature and water availability are well‐studied selective agents on reproductive timing, less is known about other seasonally variable factors ...
Katherine Toll, Chloe Crockett, Lauren Tocci, David B. Lowry   +3 more
wiley   +1 more source