Results 81 to 90 of about 1,471 (175)

WARACS: Wrappers to Automate the Reconstruction of Ancestral Character States [PDF]

open access: yes, 2016
Premise of the study: Reconstructions of ancestral character states are among the most widely used analyses for evaluating the morphological, cytological, or ecological evolution of an organismic lineage.
Gruenstaeudl, Michael
core   +2 more sources

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

Basic chemical characteristics of juices of selected red gooseberry varieties [PDF]

open access: yes, 2016
Tato bakalářská práce se zabývá stanovením vybraných chemických vlastností červenoplodých odrůd srstky angreštu. V teoretické části byly popsány základní biologické znaky angreštu, některé choroby, škůdci a vybrané červenoplodé odrůdy.
Klatová, Kamila
core  

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

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

Практикум по фармацевтической ботанике [PDF]

open access: yes, 2012
ботаника фармацевтическая; ВГМУ; практикумы; учебно-методические пособияНастоящий практикум предназначен для использования его студентами при выполнении лабораторных работ и подготовке к контрольным работам, зачетам и ...
Гурина, Н. С.   +2 more
core  

Chemosystematics of the Rosiflorae

open access: yesBrazilian Journal of Biology
The superorder Rosiflorae (sensu Dahlgren, 1980) belongs to the Angiospermae. It comprises twelve orders and thirty-eight families formed of species with varied habits widely distributed in temperate regions. The chemistry of Rosiflorae species is highly
RO. Castilho, MAC. Kaplan
doaj   +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  

Morfología polínica de plantas ornamentales: leguminosas. [PDF]

open access: yes, 1990
Se estudian con el microscopio óptico y el microscopio electrónico de barrido la morfología polínica de 29 especies de Leguminosas que habitualmente se cultivan como ornamentales.The pollen morphology of 29 species of Le gunlinosue that are usually ...
García, Inmaculada   +1 more
core   +4 more sources

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