Results 21 to 30 of about 11,318 (270)

Distribution of genetic variability in mature and progeny populations of Abies alba Mill. from the Polish Western and Eastern Carpathians

open access: yesJournal of Forest Science, 2023
This study aimed to compare patterns in the genetic structure of 27 mature stands and the natural regeneration of A. alba in the Eastern and Western Carpathians within the introgression zone of two refugial lineages from the Apennine and Balkan ...
Marcin Zarek, Marta Kempf
doaj   +1 more source

Turnover-synthesis of chloroplast DNA in developing chloroplasts [PDF]

open access: yesJournal of Bacteriology, 1978
The mechanism for the turnover-synthesis of chloroplast DNA in the absence of net synthesis during the chloroplast maturation in Euglena gracilis was determined. DNA synthesis was measured by incorporation of32Pi into chloroplast DNA. The density label, 15N, was incorporated to examine the mechanism of turnover-synthesis. The newly synthesized segments
C L Hershberger, A M Walfield
openaire   +3 more sources

The relative copy number of mitochondrial and chloroplast DNA in young and mature leaves of different grape varieties [PDF]

open access: yesBIO Web of Conferences, 2023
The copy number of DNA matrices of subcellular organelles (plants) can serve as an indicator of the intensity of photosynthesis and oxidative phosphorylation processes.
Vodolazhsky Dmitry I., Kryukov Lavr A.
doaj   +1 more source

The Diverse Modes of Oxygen Reactivity in Life & Chemistry

open access: yesChemSusChem, Volume 15, Issue 24, December 20, 2022., 2022
Breath of life: Oxygen is the quintessential molecule of life on our planet. Three molecular oxygen species dominate natural and artificial oxygenation reactions: the singlet and triplet spin states of dioxygen and ozone. This Review summarizes key applications of these molecular oxygen species in biology, medicine, technologies, and laboratories ...
Robin Stuhr   +2 more
wiley   +1 more source

Chloroplast and mitochondrial DNA editing in plants [PDF]

open access: yesNature Plants, 2021
Abstract Plant organelles, including mitochondria and chloroplasts, contain their own genomes, which encode hundreds of genes essential for respiration and photosynthesis, respectively. Gene editing in plant organelles, an unmet need for plant genetics and biotechnology, has been hampered by the lack of appropriate tools for targeting DNA in ...
Beum-Chang Kang   +9 more
openaire   +4 more sources

A shared mucosal gut microbiota signature in primary sclerosing cholangitis before and after liver transplantation

open access: yesHepatology, EarlyView., 2022
In this study of the gut mucosal microbiota in primary sclerosing cholangitis (PSC), we found consistent microbiota features associated with PSC and recurrent PSC, PSC with inflammatory bowel disease and a persistent gut dysbiosis after liver transplantation Abstract Background and Aims Several characteristic features of the fecal microbiota have been ...
Mikal Jacob Hole   +12 more
wiley   +1 more source

Planktonic microbial communities from microbialite‐bearing lakes sampled along a salinity‐alkalinity gradient

open access: yesLimnology and Oceanography, Volume 67, Issue 12, Page 2718-2733, December 2022., 2022
Abstract Continental freshwater systems are particularly vulnerable to environmental variation. Climate change‐induced desertification and the anthropogenic exploitation of hydric resources result in the progressive evaporation and salinization of inland water bodies in many areas of the globe.
Miguel Iniesto   +6 more
wiley   +1 more source

Comparative analysis of the complete plastomes of nine Pimpinella species (Apiaceae) from China [PDF]

open access: yesPeerJ, 2023
Pimpinella L. is one of the large genera in the Apiaceae family. In a previous study, the molecular phylogenies of Pimpinella were explored using nuclear ribosomal DNA internal transcribed spacers (ITS) and several chloroplast DNA segments.
Zhixin Wang   +3 more
doaj   +2 more sources

The complete chloroplast DNA sequence of eleven grape cultivars. simultaneous resequencing methodology

open access: yesOENO One, 2014
Aims: The chloroplast DNA sequence of eight Georgian grape cultivars (Rkatsiteli, Saperavi, Meskhuri Mtsvane, Chkhaveri, Aladasturi, Krakhuna, Tsitska, Tsolikouri) and three French cultivars (Chardonnay, Gouais Blanc, Chasselas), belonging to four ...
Vazha Tabidze   +7 more
doaj   +1 more source

Genome Sequences of Populus tremula Chloroplast and Mitochondrion: Implications for Holistic Poplar Breeding. [PDF]

open access: yesPLoS ONE, 2016
Complete Populus genome sequences are available for the nucleus (P. trichocarpa; section Tacamahaca) and for chloroplasts (seven species), but not for mitochondria.
Birgit Kersten   +9 more
doaj   +1 more source

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