Results 101 to 110 of about 16,393 (262)

Cutin fluorescence in early embryos of Pinus and Tsuga

open access: yesActa Societatis Botanicorum Poloniae, 2014
Embryos of Pinus nigra Arnold and Tsuga canadensis Carr. (Pinaceae) at different stages of development were dissected from fresh, unfixed seeds and examined in a fluorescence microscope with 400 nm excitation light.
Ewa Szczuka, Irena Gielwanowska
doaj   +1 more source

Integrated transfers of terrigenous organic matter to lakes at their watershed level: A combined biomarker and GIS analysis [PDF]

open access: yes, 2010
Terrigenous organic matter (TOM) transfer from a watershed to a lake plays a key role in contaminants fate and greenhouse gazes emission in these aquatic ecosystems.
Carreau, Jean   +3 more
core   +1 more source

Mid-Miocene cooling and the extinction of tundra in continental Antarctica [PDF]

open access: yes, 2008
A major obstacle in understanding the evolution of Cenozoic climate has been the lack of well dated terrestrial evidence from high-latitude, glaciated regions.
Ashworth, A.C.   +12 more
core   +1 more source

Haplotype‐Resolved Genome Assembly and Population Genomics Reveal Evolutionary History and Agronomic Traits of Mulberry

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Mulberry is a representative economic tree species valued for both poverty alleviation and medicinal use. To advance the understanding of mulberry genomics and demography, we assembled high‐quality haploid genomes of two widely cultivated mulberry varieties NS14 and QS1, and analysed 376 accessions from 12 countries, including 39 ancient trees
Zhifeng Wang   +19 more
wiley   +1 more source

Functional characterization of the cytochrome P450 monooxygenase CYP71AU87 indicates a role in marrubiin biosynthesis in the medicinal plant Marrubium vulgare. [PDF]

open access: yes, 2019
BackgroundHorehound (Marrubium vulgare) is a medicinal plant whose signature bioactive compounds, marrubiin and related furanoid diterpenoid lactones, have potential applications for the treatment of cardiovascular diseases and type II diabetes.
Addison, J Bennett   +5 more
core   +6 more sources

Evolutionary Conserved and Divergent Responses to Copper Zinc Superoxide Dismutase Inhibition in Plants

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT After an initial evolution in a reducing environment, life got successively challenged by reactive oxygen species (ROS), especially during the great oxidation event (GOE) that followed the development of photosynthesis. Therefore, ROS are deeply intertwined into the physiological, morphological and transcriptional responses of most present‐day
Stephanie Frohn   +12 more
wiley   +1 more source

Green Plants in the Red: A Baseline Global Assessment for the IUCN Sampled Red List Index for Plants [PDF]

open access: yes, 2015
Plants provide fundamental support systems for life on Earth and are the basis for all terrestrial ecosystems; a decline in plant diversity will be detrimental to all other groups of organisms including humans. Decline in plant diversity has been hard to
Albuquerque, S   +54 more
core   +1 more source

Legacies from early‐season hot drought: how growth cessation alters tree water dynamics and modifies stress responses in Scots pine

open access: yesPlant Biology, EarlyView.
Early‐season hot drought in Scots pine limits growth and productivity but improves resilience to late‐season drought through reduced water use. Abstract Tree responses to drought are well studied, but the interacting effects of drought timing on growth, water use, and stress legacy are less understood.
N. K. Ruehr, D. Nadal‐Sala
wiley   +1 more source

Epiphyllous Hepaticae of Kowloon Peninsula (Hong Kong) [PDF]

open access: yes, 1991
Twenty-eight species of epiphyllous liverworts were identified from twenty-five sites in Kowloon Peninsula, Hong Kong. Twenty-four of these species are new records to Hong Kong, while four of them are new epiphyllous records to the Chinese mainland.
But, Paul Pui-Hay, Gao, Cai-Hua
core  

Evolution of strigolactone receptors by gradual neofunctionalization of KAI2 paralogues [PDF]

open access: yes, 2017
Background: Strigolactones (SLs) are a class of plant hormones that control many aspects of plant growth. The SL signalling mechanism is homologous to that of karrikins (KARs), smoke-derived compounds that stimulate seed germination.
Bythell-Douglas, R   +6 more
core   +2 more sources

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