Results 81 to 90 of about 11,318 (270)

How a simple chloroplast psbA gene mutation changed world agriculture [PDF]

open access: yesarXiv, 2023
Atrazine as a weed control tactic profoundly changed world agriculture. Long-term use revealed resistant biotypes, R, with a single base pair mutation of the chloroplast psbA gene. The R phenotype emerged from a sequential cascade of pleiotropic effects from the plastid to the whole plant.
arxiv  

Seagrasses under stress: Independent negative effects of elevated temperature and light reduction at multiple levels of organization

open access: yesLimnology and Oceanography, EarlyView.
Abstract Seagrasses are important foundation species, which support coastal biodiversity and provide socioeconomic benefits. However, seagrasses are threatened by anthropogenic changes, including the elevated temperature associated with marine heatwaves (MHWs) and light limitation from eutrophication or increased sedimentation.
Alissa V. Bass   +2 more
wiley   +1 more source

The complete chloroplast genome sequence of Chlorella vulgaris and phylogenetic analysis

open access: yesMitochondrial DNA. Part B. Resources, 2020
To understand the process of chloroplast genome evolution, information on repeated sequences, intergenic regions, and pseudogenes in chloroplast DNA is extremely helpful.
Yangmin Wen, Duanjing Wan
doaj   +1 more source

Springtime upwelling conditions influence microbial communities and dissolved thiamin compounds in the California Current Ecosystem

open access: yesLimnology and Oceanography, EarlyView.
Abstract Understanding dissolved concentrations of the essential coenzyme thiamin (vitamin B1) can provide insights into the biological controls on highly productive upwelling systems such as the California Current Ecosystem. To connect thiamin availability with microbial communities in the California Current Ecosystem, we measured concentrations of ...
Kelly C. Shannon   +13 more
wiley   +1 more source

Development of Chloroplast Genomic Resources for Oryza Species Discrimination

open access: yesFrontiers in Plant Science, 2017
Rice is the most important crop in the world as the staple food for over half of the population. The wild species of Oryza represent an enormous gene pool for genetic improvement of rice cultivars.
Yun Song   +10 more
doaj   +1 more source

A model of chloroplast growth regulation in mesophyll cells [PDF]

open access: yesarXiv, 2015
Chloroplasts regulate their growth to optimize photosynthesis. Quantitative data shows that the ratio of total chloroplast area to mesophyll cell area is constant across different cells within a single species, and also across species. Wild-type chloroplasts exhibit little scatter around this trend; highly irregularly-shaped mutant chloroplasts exhibit
arxiv  

Temperature‐dependent growth and activity in a globally distributed nitrogen‐fixing haptophyte

open access: yesLimnology and Oceanography, EarlyView.
Abstract Dinitrogen (N2)‐fixing microorganisms play a crucial role in supplying nitrogen (N) to the oceans by converting atmospheric N2 into bioavailable N. N2 fixation was thought to be limited to warm oligotrophic ocean waters, but the association between the N2‐fixing UCYN‐A cyanobacterium and specific haptophytes, including Braarudosphaera ...
Esther Wing Kwan Mak   +6 more
wiley   +1 more source

Estimation of stability of DNA-containing vegetable samples stored under the accelerated DNA degradation

open access: yesЗерновое хозяйство России, 2020
There has been carried out an estimation of stability of DNA-containing plant samples stored under the conditions that model accelerated DNA degradation. The research material were the lines H.
V. A. Khachumov   +2 more
doaj   +1 more source

Gene Similarity-based Approaches for Determining Core-Genes of Chloroplasts [PDF]

open access: yes, 2014
In computational biology and bioinformatics, the manner to understand evolution processes within various related organisms paid a lot of attention these last decades. However, accurate methodologies are still needed to discover genes content evolution. In a previous work, two novel approaches based on sequence similarities and genes features have been ...
arxiv   +1 more source

Dual roles for CND1 in maintenance of nuclear and chloroplast genome stability in plants

open access: yesCell Reports, 2023
Summary: The coordination of chloroplast and nuclear genome status is critical for plant cell function. Here, we report that Arabidopsis CHLOROPLAST AND NUCLEUS DUAL-LOCALIZED PROTEIN 1 (CND1) maintains genome stability in the chloroplast and the nucleus.
Hong-Lei Jin   +11 more
doaj  

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