Results 21 to 30 of about 22,010 (59)

Dating the cyanobacterial ancestor of the chloroplast [PDF]

open access: yes, 2009
Cyanobacteria have played a pivotal role in the history of life on Earth being the first organism to carry out oxygenic photosynthesis, which changed atmospheric chemistry and allowed the evolution of Eukarya.
Amanda Castillo   +2 more
core   +1 more source

Phytochrome activates the plastid-encoded RNA polymerase for chloroplast biogenesis via nucleus-to-plastid signaling. [PDF]

open access: yes, 2019
Light initiates chloroplast biogenesis by activating photosynthesis-associated genes encoded by not only the nuclear but also the plastidial genome, but how photoreceptors control plastidial gene expression remains enigmatic.
Blaha, Gregor M   +6 more
core   +2 more sources

Genes Translocated into the Plastid Inverted Repeat Show Decelerated Substitution Rates and Elevated GC Content. [PDF]

open access: yes, 2016
Plant chloroplast genomes (plastomes) are characterized by an inverted repeat (IR) region and two larger single copy (SC) regions. Patterns of molecular evolution in the IR and SC regions differ, most notably by a reduced rate of nucleotide substitution ...
Kuo, Li-Yaung   +3 more
core   +1 more source

First molecular phylogenetic insights into the evolution of Eriocaulon (Eriocaulaceae, Poales) [PDF]

open access: yes, 2019
Eriocaulon is a genus of c. 470 aquatic and wetland species of the monocot plant family Eriocaulaceae. It is widely distributed in Africa, Asia and America, with centres of species richness in the tropics.
Barfod, Anders S   +20 more
core   +2 more sources

Leaf cuticular morphology links Platanaceae and Proteaceae [PDF]

open access: yes, 2005
Int. J. Plant Sci. 166(5):843–855. © 2005 by The University of Chicago.The leaf cuticular morphology of extant species of Platanus was investigated using light and scanning electron microscopy.
Carpenter, R., Hill, R., Jordan, G.
core   +2 more sources

DNA barcoding as a molecular tool to track down mislabeling and food piracy [PDF]

open access: yes, 2015
DNA barcoding is a molecular technology that allows the identification of any biological species by amplifying, sequencing and querying the information from genic and/or intergenic standardized target regions belonging to the extranuclear genomes ...
Barcaccia, Gianni   +2 more
core   +2 more sources

Three novel science activities relating to the structure of the atom, bioinformatics, and the denaturation of protein [PDF]

open access: yes, 2013
Plan B Paper. 2013. Master of Science in Education- Physics--University of Wisconsin-River Falls. Physics Department. 30 leaves. Includes bibliographical references (leaf 10).This paper describes three novel activities that were designed to teach ...
Duerst, Robert
core   +1 more source

Identification of the relationship between Chinese Adiantum reniforme var. sinense and Canary Adiantum reniforme [PDF]

open access: yes, 2015
© 2014 Wang et al.; licensee BioMed Central. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and ...
Chen, H-F   +8 more
core   +1 more source

Burmese amber fossils bridge the gap in the Cretaceous record of polypod ferns [PDF]

open access: yes, 2016
publisher: Elsevier articletitle: Burmese amber fossils bridge the gap in the Cretaceous record of polypod ferns journaltitle: Perspectives in Plant Ecology, Evolution and Systematics articlelink: http://dx.doi.org/10.1016/j.ppees.2016.01.003 ...
Alexander R. Schmidt   +75 more
core   +1 more source

Revisiting Alkali Metals As a Tool to Characterize Patterns of Mosquito Dispersal and Oviposition. [PDF]

open access: yes, 2019
Mark-recapture methods constitute a set of classical ecological tools that are used to collect information on species dispersal and population size. These methods have advanced knowledge in disparate scientific fields, from conservation biology to pest ...
Barker, Christopher M   +2 more
core   +2 more sources

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