Results 21 to 30 of about 37,502 (149)

The Nitrogen Stress-Repressed sRNA NsrR1 Regulates Expression of all1871, a Gene Required for Diazotrophic Growth in Nostoc sp. PCC 7120

open access: yesLife, 2020
Small regulatory RNAs (sRNAs) are post-transcriptional regulators of bacterial gene expression. In cyanobacteria, the responses to nitrogen availability, that are mostly controlled at the transcriptional level by NtcA, involve also at least two small ...
Isidro Álvarez-Escribano   +4 more
doaj   +1 more source

The Inorganic Nutrient Regime and the mre Genes Regulate Cell and Filament Size and Morphology in the Phototrophic Multicellular Bacterium Anabaena

open access: yesmSphere, 2020
The model cyanobacterium Anabaena sp. PCC 7120 exhibits a phototrophic metabolism relying on oxygenic photosynthesis and a complex morphology. The organismic unit is a filament of communicated cells that may include cells specialized in different ...
Cristina Velázquez-Suárez   +2 more
doaj   +1 more source

Exploring the Diversity of the Thioredoxin Systems in Cyanobacteria

open access: yesAntioxidants, 2022
Cyanobacteria evolved the ability to perform oxygenic photosynthesis using light energy to reduce CO2 from electrons extracted from water and form nutrients.
Manuel J. Mallén-Ponce   +2 more
doaj   +1 more source

Functional traits of young seedlings predict trade‐offs in seedling performance in three neotropical forests

open access: yesJournal of Ecology, Volume 111, Issue 12, Page 2568-2582, December 2023., 2023
With strikingly consistent patterns across three tropical forests, the authors find strong evidence for the promise of functional traits to provide mechanistic links between seedling form and demographic performance. Abstract Understanding the mechanisms that promote the coexistence of hundreds of species over small areas in tropical forest remains a ...
Margaret R. Metz   +11 more
wiley   +1 more source

DNA methylation at tobacco telomeric sequences [PDF]

open access: yes, 2011
Majerová et al. (Plant Mol Biol, 2011) have recently reported that a considerable fraction of cytosines at tobacco telomeres is methylated. Although the data presented in this report indicate that tobacco telomeric sequences undergo certain levels of DNA
Vaquero Sedas, María Isabel   +1 more
core   +1 more source

Glutaredoxins are essential for stress adaptation in the cyanobacterium Synechocystis sp. PCC 6803.

open access: yesFrontiers in Plant Science, 2013
Glutaredoxin are small redox proteins able to reduce disulfides and mixed disulfides between GSH and proteins. Synechocystis sp. PCC 6803 contains three genes coding for glutaredoxins: ssr2061 (grxA) and slr1562 (grxB) code for dithiolic glutaredoxins ...
Ana M Sánchez-Riego   +2 more
doaj   +1 more source

A contribution to the study of plant development evolution based on gene co-expression networks

open access: yesFrontiers in Plant Science, 2013
Phototrophic eukaryotes are among the most successful organisms on Earth due to their unparalleled efficiency at capturing light energy and fixing carbon dioxide to produce organic molecules.
Francisco J. Romero-Campero   +4 more
doaj   +1 more source

The Heterocyst-Specific Small RNA NsiR1 Regulates the Commitment to Differentiation in Nostoc

open access: yesMicrobiology Spectrum, 2022
Heterocysts are specialized cells that filamentous cyanobacteria differentiate for the fixation of atmospheric nitrogen when other nitrogen sources are not available.
Manuel Brenes-Álvarez   +2 more
doaj   +1 more source

Belajar Fotosintesis dengan Edugame berbasis Android

open access: yesEmitor: Jurnal Teknik Elektro, 2019
Fotosintesis merupakan proses yang selalu dilakukan oleh tumbuhan untuk melangsungkan kehidupan. Proses fotosintesis berupa pembuatan makanan pada tumbuhan dengan menggunakan komponen berupa air, karbondioksida dan cahaya matahari.
Fitria Widya Astari, Endah Sudarmilah
doaj   +1 more source

Exploring the Functional Relationship between y-Type Thioredoxins and 2-Cys Peroxiredoxins in Arabidopsis Chloroplasts

open access: yesAntioxidants, 2020
Thioredoxins (Trxs) are small, ubiquitous enzymes that catalyze disulphide–dithiol interchange in target enzymes. The large set of chloroplast Trxs, including f, m, x and y subtypes, use reducing equivalents fueled by photoreduced ferredoxin (Fdx) for ...
Ana Jurado-Flores   +5 more
doaj   +1 more source

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