Results 91 to 100 of about 1,262 (192)

Chroococcidiopsis and Heterocyst-Differentiating Cyanobacteria Are Each Other's Closest Living Relatives

Molecular Phylogenetics and Evolution, 2002
Many filamentous cyanobacteria reduce atmospheric nitrogen in specialized differentiated cells called heterocysts. Here we present evidence that shows that members of the unicellular non-heterocyst-differentiating genus Chroococcidiopsis and the filamentous heterocyst-differentiating cyanobacteria are each other's closest living relatives.
Fewer, D., Friedl, Thomas, Budel, B.
openaire   +3 more sources

Gastric Signet Ring Cell Carcinoma: Tumor Microenvironment Reprogramming and Novel Therapeutic Targets With Emphasis on GRIN2D

Clinical and Translational Science, Volume 18, Issue 11, November 2025.
ABSTRACT Gastric Signet Ring Cell Carcinoma (GSRCC) is an increasingly recognized subtype of gastric cancer, particularly prevalent in South Asian populations and regions within India. This carcinoma is distinguished by its abundant cytoplasmic mucinous cells and aggressive clinical behavior, often affecting younger individuals and leading to a poor ...
Dipali Raju, Swathi Prabhu, Anjal Maria, Shriya Narendra Shet Shirodkar, Rama Rao Damerla, Sanjiban Chakrabarty, Preethi S. Shetty, Mahadev Rao, Naveena A. N. Kumar   +8 more
wiley   +1 more source

CcbP, a calcium-binding protein from Anabaena sp. PCC 7120, provides evidence that calcium ions regulate heterocyst differentiation

, 2005
Although it is known that calcium is a very important messenger involved in many eukaryotic cellular processes, much less is known about calcium's role in bacteria.
Wang, Donghui, J. Zhao, Zhao, JD, Shi, Yunming, J. Brand, Huang, Xu, Shi, YM, Brand, Jerry, Huang, X, Brown, Neil, D. Wang, Wang, DH, X. Huang, Zhao, Weixing, W. Zhao, Y. Zhao, Zhao, Yinhong, Zhao, YH, Zhao, Jindong, Zhao, WX, Brown, N, Brand, J, N. Brown, Y. Shi   +23 more
core   +1 more source

Cyanobacterial Bloom Development, Nitrogen Fixation and Community Change: Insights on Rapid Change From a Shallow Lake

Freshwater Biology, Volume 70, Issue 11, November 2025.
ABSTRACT Nutrient‐rich lakes are highly susceptible to cyanobacterial blooms. During blooms, the consumption of dissolved inorganic nutrients can be rapid, but nitrogen (N) limitation can be mitigated through N2 fixation by cyanobacterial diazotrophs.
Lisa M. Boyer, Scott N. Higgins, Helen M. Baulch   +2 more
wiley   +1 more source

A Minority of Desert Cyanobacteria and Algae Is Responsible for the Bulk of CO2 Fixation

Physiologia Plantarum, Volume 177, Issue 6, November/December 2025.
ABSTRACT Cyanobacteria and algae are the major photosynthetic organisms in deserts because they survive desiccation, high solar radiation and extreme temperature fluctuations better than other plants. Under favourable conditions, desert cyanobacteria and algae evidently photosynthesise.
Khin Maw Kyi, Mikhail V. Zubkov, Nina A. Kamennaya   +2 more
wiley   +1 more source

Specialized bacteriome uncovered in the coralloid roots of the epiphytic gymnosperm, Zamia pseudoparasitica

Environmental DNA, 2020
Epiphytes face several constraints regarding nutrient acquisition: They are disconnected from soil minerals and they have to mainly rely on nutrients leached by precipitation and microbes.
Philip Bell‐Doyon, Jérôme Laroche, Kristin Saltonstall, Juan Carlos Villarreal Aguilar   +3 more
doaj   +1 more source

A Long‐Standing Taxonomic Puzzle: Species Delimitation and Phylogenetic Analysis Reveal New Findings in Neogoniolithon (Spongitidaceae, Corallinophycidae and Rhodophyta) From the Southwestern Atlantic

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 35, Issue 10, October 2025.
ABSTRACT In the first study on Neogoniolithon species for the Southwestern Atlantic Ocean, based on both molecular (COI‐5P, psbA and SSU rDNA) and morpho‐anatomical data, three taxa were identified for the Brazilian coast, including two new species. DNA‐based species delimitation methods distinguished Neogoniolithon crypticum sp. nov.
Priscila Jesus, Iara Costa, Marcos Nunes, Marina Sissini, Paulo Horta, Maria Barros‐Barreto   +5 more
wiley   +1 more source

Mechanism of intercellular molecular exchange in heterocyst-forming cyanobacteria

, 2008
This is the author's version of this article, which was subsequently published in The EMBO Journal (2008) 27, 1299–1308, doi:10.1038/emboj.2008.66 © 2008 European Molecular Biology Organization | All Rights Reserved 0261-4189/08 www.embojournal ...
Adams, DG, Mullineaux, CW, Nenninger, A, Khanum, H, Mariscal, V, Herrero, A, Flores, E   +6 more
core   +1 more source

Growth Characteristics of an Estuarine Heterocystous Cyanobacterium

Frontiers in Microbiology, 2017
A new estuarine filamentous heterocystous cyanobacterium was isolated from intertidal sediment of the Lagoa dos Patos estuary (Brazil). The isolate may represent a new genus related to Cylindrospermopsis.
Pablo Guimarães, Pablo Guimarães, João S. Yunes, Mariana Silvia Cretoiu, Mariana Silvia Cretoiu, Lucas J. Stal, Lucas J. Stal   +6 more
doaj   +1 more source

Characterization of genes involved in heterocyst differentiation and pattern formation in the cyanobacterium Anabaena sp. strain Pcc 7120 [PDF]

, 2008
The goal of this research was to understand regulation of heterocyst differentiation in Anabaena sp. strain PCC 7120 (hereafter Anabaena PCC 7120) by characterizing regulatory genes for heterocyst formation and their mutants.
Borthakur, Pritty B.
core