Results 71 to 80 of about 1,499 (180)

Paisia, an Early Cretaceous eudicot angiosperm flower with pantoporate pollen from Portugal [PDF]

open access: yes, 2018
A new fossil angiosperm, Paisia pantoporata, is described from the Early Cretaceous Catefica mesofossil flora, Portugal, based on coalified floral buds, flowers and isolated floral structures.
Argue CL   +20 more
core   +1 more source

Sequencing complex plants on a budget: The development of Kalanchoë blossfeldiana as a C3, CAM comparative tool

open access: yesPLANTS, PEOPLE, PLANET, Volume 6, Issue 6, Page 1314-1328, November 2024.
Research efforts in plant biology have often been focused on sequenced and well‐studied ‘model’ organisms. Despite the advent of relatively inexpensive genome sequencing, most plant taxonomic groups are underrepresented, with few species that ‘represent’ the diversity of whole genera.
Daniel Cowan‐Turner   +11 more
wiley   +1 more source

Megaphylogenetic Specimen-Level Approaches to the Carex (Cyperaceae) Phylogeny Using ITS, ETS, and matK Sequences: Implications for Classification [PDF]

open access: yes, 2016
We present the first large-scale phylogenetic hypothesis for the genus Carex based on 996 of the 1983 accepted species (50.23%). We used a supermatrix approach using three DNA regions: ETS, ITS and matK.
Escudero Lirio, Marcial   +7 more
core  

Use of eDNA and conventional sampling methods to survey rock pool (gnamma) biodiversity on granite inselbergs

open access: yesAustral Ecology, Volume 49, Issue 8, August 2024.
Environmental DNA sampling coupled with high‐throughput sequencing is increasingly recognized as a useful method for assessing biodiversity with potential applications in terrestrial environments. Rock pools on granite inselbergs support diverse aquatic communities, yet the application of eDNA to document their biodiversity is lacking.
Damian R. Michael   +7 more
wiley   +1 more source

Heterogeneity in global vegetation and terrestrial climate change during the late Eocene to early Oligocene transition [PDF]

open access: yes, 2017
Rapid global cooling at the Eocene – Oligocene Transition (EOT), ~33.9–33.5 Ma, is widely considered to mark the onset of the modern icehouse world. A large and rapid drop in atmospheric pCO2 has been proposed as the driving force behind extinctions in ...
Pound, Matthew, Salzmann, Ulrich
core   +2 more sources

Plasticity for the win: Flexible transcriptional response to host plant switches in the comma butterfly (Polygonia c‐album)

open access: yesMolecular Ecology, Volume 33, Issue 16, August 2024.
Abstract Generalist plant‐feeding insects are characterised by a broad host repertoire that can comprise several families or even different orders of plants. The genetic and physiological mechanisms underlying the use of such a wide host range are still not fully understood.
Katharina Schneider   +6 more
wiley   +1 more source

Variation of terpene alkaloids in Daphniphyllum macropodum across plants and tissues

open access: yesNew Phytologist, Volume 243, Issue 1, Page 299-313, July 2024.
Summary Daphniphyllum macropodum produces alkaloids that are structurally complex with polycyclic, stereochemically rich carbon skeletons. Understanding how these compounds are formed by the plant may enable exploration of their biological function and bioactivities.
Kaouthar Eljounaidi   +12 more
wiley   +1 more source

Winter season bloomer Hairy Bergenia Bergenia ciliata (Haw.) Sternb. (Saxifragales: Saxifragaceae), an important winter forage for diverse insect groups

open access: yesJournal of Threatened Taxa, 2019
Pollinators can play an important role in production improvement in organic farming.  It is, therefore, essential to ensure their year-round availability, particularly in winter season in Sikkim Himalaya.  Thus, attempts were made to explore resources which could support and provide switching over platforms to pollinators during the winter season ...
Bhawana Kapkoti Negi   +2 more
openaire   +1 more source

Project ChemicalBlooms: Collaborating with citizen scientists to survey the chemical diversity and phylogenetic distribution of plant epicuticular wax blooms

open access: yesPlant Direct, Volume 8, Issue 5, May 2024.
Abstract Plants use chemistry to overcome diverse challenges. A particularly striking chemical trait that some plants possess is the ability to synthesize massive amounts of epicuticular wax that accumulates on the plant's surfaces as a white coating visible to the naked eye.
Le Thanh Dien Nguyen   +5 more
wiley   +1 more source

Evolutionary origins of abnormally large shoot sodium accumulation in non-saline environments within the Caryophyllales [PDF]

open access: yes, 2016
The prevalence of sodium (Na) “hyperaccumulator” species, which exhibit abnormally large shoot sodium concentrations ([Na]shoot) when grown in non-saline environments, was investigated among angiosperms in general and within the Caryophyllales order in ...
Albert   +72 more
core   +1 more source

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