Results 41 to 50 of about 1,916 (198)

Lack of conservation of bacterial type promoters in plastids of Streptophyta [PDF]

, 2010
We demonstrate the scarcity of conserved bacterial-type promoters in plastids of Streptophyta and report widely conserved promoters only for genes psaA, psbA, psbB, psbE, rbcL.
Vassily A Lyubetsky, Lev I Rubanov, Alexandr V Seliverstov   +2 more
core   +2 more sources

Plants synthesize ergothioneine, showing a link to abiotic stress

Plant Biology, EarlyView.
Various plants possess ergothioneine biosynthetic genes and can synthesize this antioxidant, where increased EGT levels under abiotic stress conditions indicate protective functions. Abstract Ergothioneine (EGT) is a sulphur‐containing histidine derivative and a potent antioxidant that exhibits beneficial effects on human health.
C. Kock, N. Gutsche, S. Walter, S. Zachgo   +3 more
wiley   +1 more source

Algunos aspectos de la variabilidad de los oogonios en poblaciones actuales del género Chara (Charophyceae). Aplicación paleontológica

Estudios Geologicos, 1986
Se hace una revisión crítica de-algunos criterios taxonómicos de uso habitual en paleontología de carofitas. Sus resultados, basados en cuatro poblaciones actuales (Chara aculeolata, Chara aff.baltica, Chara delicatula y Chara globularis), permiten hacer
J. Pedrola, J. D. Acuña
doaj   +1 more source

Algas e cianobactérias continentais no estado do Pará, Brasil. [PDF]

, 2017
Estudos ficológicos no Pará; Compilação dos dados; Diversidade; Cyanophyceae/Cyanobacteria; Chlamydophyceae; Chlorophyceae; Zygnemaphyceae; Oedogoniophyceae; Charophyceae; Euglenophyceae; Dinophyceae; Chrysophyceae; Xanthophyceae; Cryptophyceae ...
BARROS, K. D. das N., BICUDO, C. E. de M., COSTA, S. D. da, MARTINS-DA-SILVA, R. C. V., OLIVEIRA, M. E. C.   +4 more
core  

Microbially Mediated Intracellular Barite Mineralization: Evidence From an Early Ediacaran Microfossil in the Doushantuo Formation of South China

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Barite serves as a key proxy for reconstructing paleo‐oceanic productivity and chemistry in modern and ancient marine sediments. Although contemporary barite precipitation involves biological mediation, the mechanisms responsible for ancient barite formation remain unclear.
Shiqi Cheng, Lianjun Feng, Yingjie Yang, Xuelei Chu, Xingliang Zhang, Jinhua Li   +5 more
wiley   +1 more source

Phylogenetic Investigation of the Aliphatic, Non-hydrolyzable Biopolymer Algaenan, with a Focus on Green Algae [PDF]

, 2009
Algaenan, an aliphatic biopolymer found in various microalgae, has been implicated as the source of a sizable proportion of the aliphatic refractory organic matter in sedimentary rocks.
Knoll, Andrew Herbert, Kodner, Robin B., Summons, Roger E.   +2 more
core   +1 more source

O gênero Chara (Charophyceae, Characeae) das Regiões Metropolitanas de Salvador e de Feira de Santana, Bahia, Brasil

Rodriguésia
Resumo O levantamento florístico do gênero Chara (Charophyceae, Characeae) nas Regiões Metropolitanas de Salvador e de Feira de Santana, foi realizado em 30 estações de coleta abrangendo seis municípios da RMS e seis da RMFS.
Camila dos Anjos Ribeiro, Geraldo José Peixoto Ramos, Norma Catarina Bueno, João Fernando Prado, Carlos Wallace do Nascimento Moura   +4 more
doaj   +1 more source

Microbial communities mediating algal detritus turnover under anaerobic conditions [PDF]

PeerJ, 2017
Background Algae encompass a wide array of photosynthetic organisms that are ubiquitously distributed in aquatic and terrestrial habitats. Algal species often bloom in aquatic ecosystems, providing a significant autochthonous carbon input to the deeper ...
Jessica M. Morrison, Chelsea L. Murphy, Kristina Baker, Richard M. Zamor, Steve J. Nikolai, Shawn Wilder, Mostafa S. Elshahed, Noha H. Youssef   +7 more
doaj   +2 more sources

Changes in the Algal Flora of East Harbor, Ottawa County, Ohio, Since 1900 [PDF]

, 1975
Author Institution: Department of Botany and Center for Lake Erie Area Research, The Ohio State UniversityFREDERICK, v. RAY. Changes in the Algal Flora of East Harbor, Ottawa County, Ohio since 1900. Ohio J. Sci.
Frederick, V. Ray
core  

Desiccation tolerance of Botryococcus braunii (Trebouxiophyceae, Chlorophyta) and extreme temperature tolerance of dehydrated cells [PDF]

, 2014
Botryococcus braunii Kützing, a green colonial microalga, occurs worldwide in both freshwater and brackish water environments. Despite considerable attention to B.
Demura Mikihide, Ioki Motohide, Kawachi Masanobu, Nakajima Nobuyoshi, Watanabe Makoto M., 出村 幹英, 渡邉 信   +6 more
core   +1 more source