Results 41 to 50 of about 1,522 (163)

Diversity of Volatile Emissions From Cork Oak: Quantity and Quality Vary Independently Across Its Range

open access: yesEcology and Evolution, Volume 15, Issue 9, September 2025.
We investigated the VOC emissions of 241 cork oak seedlings from ten provenances. The northern provenances tended to develop more sclerophyllous leaves with higher emission rates and lower photosynthesis rates than the southern populations. Independently of this, the composition of emissions varied discontinuously according to three distinct chemotypes,
Michael Staudt   +2 more
wiley   +1 more source

Bacterial Degradation of tert-Amyl Alcohol Proceeds via Hemiterpene 2-Methyl-3-Buten-2-ol by Employing the Tertiary Alcohol Desaturase Function of the Rieske Nonheme Mononuclear Iron Oxygenase MdpJ [PDF]

open access: yesJournal of Bacteriology, 2011
Tertiary alcohols, such as tert-butyl alcohol (TBA) and tert-amyl alcohol (TAA) and higher homologues, are only slowly degraded microbially. The conversion of TBA seems to proceed via hydroxylation to 2-methylpropan-1,2-diol, which is further oxidized to 2-hydroxyisobutyric acid. By analogy, a branched pathway is expected for the degradation of TAA, as
Judith, Schuster   +8 more
openaire   +2 more sources

Exogenous stimulation of Tanacetum vulgare roots with pipecolic acid leads to tissue‐specific responses in terpenoid composition

open access: yesPlant Biology, Volume 27, Issue 5, Page 891-902, August 2025.
Tissue‐specific changes in terpenoid patterns in tansy are induced by simulated induction of systemic acquired resistance using pipercolic acid. Abstract Tanacetum vulgare L., tansy, is a perennial plant with highly variable terpenoid composition, with mono‐ and sesquiterpenoids being the most abundant.
H. Rahimova   +4 more
wiley   +1 more source

The diversion of 2‐C‐methyl‐d‐erythritol‐2,4‐cyclodiphosphate from the 2‐C‐methyl‐d‐erythritol 4‐phosphate pathway to hemiterpene glycosides mediates stress responses in Arabidopsis thaliana [PDF]

open access: yesThe Plant Journal, 2015
Summary2‐C‐Methyl‐d‐erythritol‐2,4‐cyclodiphosphate (MEcDP) is an intermediate of the plastid‐localized 2‐C‐methyl‐d‐erythritol‐4‐phosphate (MEP) pathway which supplies isoprenoid precursors for photosynthetic pigments, redox co‐factor side chains, plant volatiles, and phytohormones.
Gonzalez-Cabanelas, D.   +6 more
openaire   +4 more sources

Alichondrichlorin, a Novel Chlorohydrin‐Containing Natural Product With Tumoral Cytotoxic Activity Isolated From the Planctomycetota Bacterium Alienimonas chondri LzC2T

open access: yesMicrobial Biotechnology, Volume 18, Issue 2, February 2025.
This study describes the isolation and characterisation of a novel bioactive secondary metabolite from the still underexplored bacterial phylum Planctomycetota, highlighting the biotechnological relevance of these organisms. ABSTRACT To address the on‐going need for chemical novelty and the limited information on Planctomycetota secondary metabolism ...
Inês R. Vitorino   +12 more
wiley   +1 more source

Production of the Sesquiterpene Bisabolene From One‐ and Two‐Carbon Compounds in Engineered Methanosarcina acetivorans

open access: yesMicrobial Biotechnology, Volume 18, Issue 2, February 2025.
Despite the versatile metabolic capacities of methanogenic archaea, they are currently only employed in biotechnology for their methane generating ability. We engineered Methanosarcina acetivorans to produce the sesquiterpene bisabolene from Abies grandis from methanol or from carbon monoxide.
Andrea Mentrup   +3 more
wiley   +1 more source

Recent Perspectives on Anticancer Potential of Coumarin Against Different Human Malignancies: An Updated Review

open access: yesFood Science &Nutrition, Volume 13, Issue 1, January 2025.
The paper highlights coumarin's ability to induce apoptosis, inhibit cell proliferation, and interfere with cancer cell signaling pathways. Coumarin disrupts key signaling pathways, including NF‐κB and PI3K/Akt, which are crucial for cancer cell survival and proliferation.
Muhammad Shahbaz   +14 more
wiley   +1 more source

Melanogenesis Inhibitory Activities of Iridoid-, Hemiterpene-, and Fatty Acid-glycosides from the Fruits of Morinda citrifolia (Noni)

open access: yesJournal of Oleo Science, 2010
A new iridoid glycoside, 9-epi-6alpha-methoxy geniposidic acid (4), three new hemiterpene glycosides, 3-methylbut-3-enyl 2'-O-(beta-D-glucopyranosyl)-beta-D-glucopyranoside (nonioside K) (6), 3-methylbut-3-enyl 6'-O-(beta-D-xylopyranosyl)-beta-D-glucopyranoside (nonioside L) (8), and 3-methylbut-3-enyl 6'-O-(beta-D-xylofuranosyl)-beta-D-glucopyranoside
Toshihiro, Akihisa   +8 more
openaire   +3 more sources

Topical Delivery Systems for Plant‐Derived Antimicrobial Agents: A Review of Current Advances

open access: yesInternational Journal of Biomaterials, Volume 2025, Issue 1, 2025.
Plant‐derived compounds have attracted considerable attention in the field of antimicrobial therapy. This interest is primarily due to their natural origin and historical evidence of their use in traditional medicine systems. These derivatives are a rich reservoir of chemical diversity that has a promising potential for the development and production ...
Mohammad Hashem Hashempur   +10 more
wiley   +1 more source

Terpenes and Terpenoids: Building Blocks to Produce Biopolymers [PDF]

open access: yes
[EN] Polymers are essential materials in our daily life. The synthesis of value-added polymers is mainly performed from fossil fuel-derived monomers. However, the adoption of the circular economy model based on the bioeconomy will reduce the dependence ...
Acosta, Carolina   +10 more
core   +1 more source

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