Results 41 to 50 of about 37,724 (261)

Spatial and temporal dynamics of two cacti seed banks in a xerophytic shrubland in Mexico City

open access: yesBotan‪ical Sciences, 2021
Background: Soil and aerial seed banks directly affect recruitment in plant populations. Soil banks result as the balance between seed inputs and outputs. Seed bank dynamics vary by species and environmental conditions.
Itzel Guzmán-Vázquez   +3 more
doaj   +1 more source

Refinement of amino‐acid conformation vs. difference density maps in time‐resolved serial femtosecond crystallography data analysis

open access: yesFEBS Open Bio, EarlyView.
The dFoCC pipeline starts with observed DED and resting‐state coordinates, which are then used to generate a library of triggered states. Correlation analysis of the calculated DED features of each candidate vs observed DED permits quantitative evaluation of candidate structural quality.
Meng Iao Fong   +3 more
wiley   +1 more source

Rhododendron maximum impacts seed bank composition and richness following Tsuga canadensis loss in riparian forests

open access: yesEcosphere, 2018
Southern Appalachian riparian forests have undergone changes in composition and function from invasive pathogens and pests. Castanea dentata mortality in the 1930s from chestnut blight (Cryphonectria parasitica) and Tsuga canadensis mortality in the ...
Tristan M. Cofer   +3 more
doaj   +1 more source

Hydrostatic pressure activates HIF‐1α via β‐catenin to promote stemness in breast cancer cells

open access: yesFEBS Open Bio, EarlyView.
To mimic the elevated intestinal fluid pressure in breast cancers, we loaded human breast cancer cells (MCF‐7, MDA‐MB‐453, and BT‐474) to 50 mmHg hydrostatic pressure. Hydrostatic pressure exposure upregulated HIF‐1α and induced stemness in MCF‐7 and BT‐474 cells.
Da Zhai   +8 more
wiley   +1 more source

Effects of water level on three wetlands soil seed banks on the Tibetan Plateau. [PDF]

open access: yesPLoS ONE, 2014
BACKGROUND: Although the effect of water level on germination in soil seed banks has been documented in many ecosystems, the mechanism is not fully understood, and to date no empirical studies on this subject exist.
Miaojun Ma, Zhen Ma, Guozhen Du
doaj   +1 more source

Maintenance of wetland plant communities: the role of the seed bank in regeneration of native plants

open access: yesActa Botânica Brasílica, 2021
Exotic grasses have been introduced into wetlands and can compete with native plants due to their high tolerance of flood and dry periods. Flooding can facilitate seed dispersal of exotic species and reduce the diversity of native species.
Francielli Bao   +2 more
doaj   +1 more source

Molecular characterization of covRS mutations in M1UK Streptococcus pyogenes

open access: yesFEBS Open Bio, EarlyView.
Group A Streptococcus (GAS) acquires covRS mutations driving a hypervirulent bacterial state, frequently associated with invasive disease‐like necrotizing fasciitis. We demonstrate that the newly emerged M1UK GAS lineage can also acquire these mutations.
Jarrad Pritchard   +12 more
wiley   +1 more source

Flora, life form and chorological study of soil seed bank in Sisangan box tree (Buxus hyrcanus Pojark) Forest Reserve [PDF]

open access: yesZīst/shināsī-i Giyāhī-i Īrān, 2014
The present study involves the soil seed bank flora of the Sisangan Box tree (Buxus hyrcanus Pojark) reserve by using seedling emergence method. 150 soil samples were collected during late June and early November by hammering a hollow metal frame 400 cm2
Moslem Akbarinia   +2 more
doaj  

Effect of terahertz irradiation on DNA damage repair in living cells

open access: yesFEBS Open Bio, EarlyView.
We investigated the effect of terahertz (THz) wave irradiation on DNA double‐strand break (DSB) repair in living cells. We found that THz irradiation enhanced DSB repair at specific frequencies, whereas heat treatment inhibited it, indicating that this effect is nonthermal and frequency‐specific.
Yuya Ueno   +3 more
wiley   +1 more source

Differential role of a persistent seed bank for genetic variation in early vs. late successional stages.

open access: yesPLoS ONE, 2018
Persistent seed banks are predicted to have an important impact on population genetic processes by increasing effective population size and storing past genetic diversity.
Benjamin Schulz   +3 more
doaj   +1 more source

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