Results 81 to 90 of about 832,198 (227)
The last forests on Antarctica: Reconstructing flora and temperature from the Neogene Sirius Group, Transantarctic Mountains [PDF]
, 2018 Fossil-bearing deposits in the Transantarctic Mountains, Antarctica indicate that, despite the cold nature of the continent’s climate, a tundra ecosystem grew during periods of ice sheet retreat in the mid to late Neogene (17–2.5 Ma), 480 km from the ...
Ackert +91 more
core +3 more sources
A novel single‐cell NAD‐ME C4 subtype integrated with CAM and bicarbonate use in an aquatic plant
New Phytologist, Volume 249, Issue 5, Page 2386-2401, March 2026.Summary Many plants maximize photosynthesis by using a CO2‐concentrating mechanism (CCM). Based on physiology, the freshwater plant Ottelia alismoides has three CCMs: C4 metabolism (NAD‐malic enzyme (NAD‐ME) subtype) and bicarbonate‐use during the day plus crassulacean acid metabolism (CAM) at night and lacks Kranz anatomy. Here, we combined a range of
Hong Sheng Jiang +11 more
wiley +1 more source
Revista de Investigaciones Marinas, 2016 Las investigaciones referentes al estado del macrofitobentos son importantes por la vulnerabilidad actual de los ecosistemas marinos ante diversas presiones naturales y antrópicas.
Emma Elena Gómez González +1 more
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Palaeoclimate changes in the Afyon province, Sw-Turkey, during the Middle-Late Pleistocene: Signals from calcareous tufa pollen and stable isotope records [PDF]
, 2018 The calcareous tufas of Sarikavak located in the northern part of NE-SW trending Acigöl Graben in SW-Turkey are investigated in detail. For this aim, various analyses (stable isotopes, U/Th dating, palynology) have been carried out on samples obtained ...
Kayseri-Özer, M.S., Tagliasacchi, Ezher
core +1 more source
Lignin biomarkers as tracers of mercury sources in lakes water column [PDF]
, 2009 This study presents the role of specific terrigenous organic compounds as important vectors of mercury (Hg) transported from watersheds to lakes of the Canadian boreal forest.
A Otto +83 more
core +1 more source
Epitranscriptomics as a Candidate Universal Modulator of Dormancy Transitions
Ecology and Evolution, Volume 16, Issue 2, February 2026.Dormancy is presented as a conserved, reversible survival program in which epitranscriptomic RNA modifications are proposed to provide a rapid, energy‐efficient layer that establishes, maintains, and terminates the state by modulating mRNA stability, translation, and localization.
Ehsan Pashay Ahi
wiley +1 more source
A potential cyanobacterial ancestor of Viridiplantae chloroplasts [PDF]
, 2011 The theory envisaging the origin of plastids from endosymbiotic cyanobacteria is well-established but it is difficult to explain the evolution (spread) of plastids in phylogenetically diverse plant groups.
Jaideb Chatterjee +5 more
core +1 more source
First palynologic record of the Cretaceous La Yesera Formation (Salta Group), northwestern Argentina [PDF]
, 2014 Thirty-four taxa were documented from six palynologically productive samples of the La Yesera Formation (Brealito and Don Bartolo Members) in the Pucará locality (Salta Province, northwestern Argentina).
Narvaez, Paula Liliana +2 more
core +1 more source
Ecology and Evolution, Volume 16, Issue 2, February 2026.Variation in mean net diversification rate (MNDR) of angiosperms in geographic units across latitude and between tropical and temperate latitudes. ABSTRACT There are two major groups of methods estimating diversification rates: One group depends on well resolved phylogenies and the other is phylogeny‐free.
Hong Qian, Michael Kessler
wiley +1 more source
South African Journal of Botany, 1990 Small delicate structures found in the leaf bases in vegetative buds of the marine angiosperm Halophila ovalis (R. Br.) Hook. f. showed a fine structure of the component cells typical of secretory cells. They are rich in organelles particularly ER, dictyosomes, ribosomes and mitochondria. Endoplasmic reticulum occurs at two localities in each cell, one
Naidoo, Y. +3 more
openaire +1 more source