Results 11 to 20 of about 2,158,418 (332)

Chiral Sugars Drive Enantioenrichment in Prebiotic Amino Acid Synthesis

open access: yesACS Central Science, 2017
Chiral pentose sugars mediate the enantioselective synthesis of amino acid precursors, with the magnitude of the chiral induction dictated by a subtle cooperativity between sugar hydroxyl groups.
Alexander J. Wagner   +3 more
doaj   +2 more sources

Abiotic sugar enantiomers in the CI carbonaceous chondrite Orgueil [PDF]

open access: yesNature Communications
The uneven detection of prebiotic organic compounds in meteorites—where amino acids and nucleobases are commonly identified but sugars remain rare and poorly characterized—limits our understanding of extraterrestrial organic chemistry.
Vanessa Leyva   +4 more
doaj   +2 more sources

Evidence that intracellular stages of Leishmania major utilize amino sugars as a major carbon source. [PDF]

open access: yesPLoS Pathogens, 2010
Intracellular parasites, such as Leishmania spp, must acquire suitable carbon sources from the host cell in order to replicate. Here we present evidence that intracellular amastigote stages of Leishmania exploit amino sugars in the phagolysosome of ...
Thomas Naderer   +2 more
doaj   +2 more sources

Divergent accumulation of amino sugars and lignins mediated by soil functional carbon pools under tropical forest conversion.

open access: yesScience of the Total Environment, 2023
Tropical primary forests are being destroyed at an alarming rate and converted for other land uses which is expected to greatly influence soil carbon (C) cycling.

semanticscholar   +1 more source

Faster accumulation and greater contribution of glomalin to the soil organic carbon pool than amino sugars do under tropical coastal forest restoration

open access: yesGlobal Change Biology, 2022
Microbial metabolic products play a vital role in maintaining ecosystem multifunctionality, such as soil physical structure and soil organic carbon (SOC) preservation. Afforestation is an effective strategy to restore degraded land. Glomalin‐related soil
Tengteng Li   +13 more
semanticscholar   +1 more source

Specific Extraction of Aspartic Acid and Tyrosine with Aqueous Two-phase Systems Formed by Hydrophilic Organic Solvent and Monomeric Sugars

open access: yesJournal of Chemical Engineering of Japan, 2023
An aqueous two-phase system (ATPS) formed by hydrophilic organic solvent and sugars is environmentally benign and has the advantages of fast phase separation.
Michiaki Matsumoto   +2 more
doaj   +1 more source

Distribution Characteristics of Microbial Residues within Aggregates of Fluvo-Aquic Soil under Biochar Application

open access: yesAgronomy, 2023
The use of biochar as a soil amendment has substantial potential to enhance soil quality and carbon sequestration. However, the responses to the addition of biochar based on soil microbial residues are not well understood, particularly at the aggregate ...
Yuyang Cheng   +5 more
doaj   +1 more source

Production and transformation of dissolved neutral sugars and amino acids by bacteria in seawater [PDF]

open access: yesBiogeosciences, 2014
Dissolved organic matter (DOM) in the ocean consists of a heterogeneous mixture of molecules, most of which are of unknown origin. Neutral sugars and amino acids are among the few recognizable biomolecules in DOM, and the molecular composition of these ...
L. Jørgensen   +4 more
doaj   +1 more source

Comparative Ionomics and Metabolic Responses and Adaptive Strategies of Cotton to Salt and Alkali Stress

open access: yesFrontiers in Plant Science, 2022
Soil salinization and alkalization severely inhibit agriculture. However, the response mechanisms of cotton to salt stress or alkali stress are unclear.
Jiaxin Guo   +4 more
doaj   +1 more source

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