Results 41 to 50 of about 19,197 (232)

Chitosan‐Carbon Dot Composite Materials Form a Leaf Surface Barrier to Mitigate the Enrichment and Invasion of Nanoplastics: From Leaf Interface to Systemic Response

open access: yesAdvanced Science, EarlyView.
Foliar spraying of CS‐CDs can form a film on the leaves of Brassica rapa, effectively reducing the enrichment and absorption of PS in the leaves, while increasing the biomass and nutrient content of the plants. In addition, CS‐CDs can also enrich the interfoliar microbial community and activate the plant's own defense metabolic pathways.
Beibei Zhao   +6 more
wiley   +1 more source

Resistant Peanut Genotype Reprograms Rhizosphere Metabolism to Enhance Bacterial Wilt Suppression

open access: yesAdvanced Science, EarlyView.
The resistant peanut genotype selectively recruits beneficial bacteria, which coincides with the activation of salicylic acid (SA)‐dependent systemic acquired resistance (SAR) against Ralstonia solanacearum. Keystone rhizosphere metabolites are positively correlated with both beneficial microbiome assembly and SAR gene expression.
Rui Ren   +20 more
wiley   +1 more source

Macrocyclic polyketides from microorganisms: structural diversities and bioactivities

open access: yes, 2022
Microorganisms are a seemingly inexhaustible source of bioactive secondary metabolites, which play a crucial role in discovering potential drug candidates and expanding the structural diversity of natural products.
Peng ZHOU   +4 more
core   +1 more source

The polyketide backbone of thiolactomycin is assembled by an unusual iterative polyketide synthase [PDF]

open access: yesChemical Communications, 2017
Thiotetronate polyketide assembly by an unusual iterative synthase is reconstructedvia in vitroenzymology and chemical probes.
Marie E. Yurkovich   +4 more
openaire   +3 more sources

Biocontrol potential of Bacillus velezensis EM-1 associated with suppressive rhizosphere soil microbes against tobacco bacterial wilt

open access: yesFrontiers in Microbiology, 2022
Tobacco bacterial wilt caused by Ralstonia solanacearum is one of the most devastating diseases. Microbial keystone taxa were proposed as promising targets in plant disease control.
Xiaona Sui   +8 more
doaj   +1 more source

Polyketides from Eleutherine bulbosa

open access: yes, 2010
Four new polyketides, (R)-4-hydroxyeleutherin, eleuthone, eleutherinol-8-O - D-glucoside and isoeleuthoside C (dihydroisoeleutherin-5-O -β- D-gentiobioside) were isolated from the bulbs of Eleutherine bulbosa, to join eleutherin, isoeleutherin ...
Kusamba Chifundera   +7 more
core   +1 more source

Characterization of PksS in Bacillus subtilis [PDF]

open access: yes, 2007
"Cytochrome P450s are a common type of the polyketide tailoring enzymes that are responsible for the hydroxylation of polyketides. PksS, a likely tailoring enzyme, is found within the gene cluster pksX, from Bacillus subtilis.
Antolak, Stephanie Anne   +1 more
core  

Bioinspired iterative synthesis of polyketides [PDF]

open access: yesFrontiers in Chemistry, 2015
Diverse array of biopolymers and second metabolites (particularly polyketide natural products) has been manufactured in nature through an enzymatic iterative assembly of simple building blocks. Inspired by this strategy, molecules with inherent modularity can be efficiently synthesized by repeated succession of similar reaction sequences.
Zheng, Kuan, Xie, Changmin, Hong, Ran
openaire   +3 more sources

Polyketides from the Mangrove-Derived Endophytic Fungus Nectria sp. HN001 and Their α-Glucosidase Inhibitory Activity

open access: yesMarine Drugs, 2016
Four new polyketides: nectriacids A–C (1–3) and 12-epicitreoisocoumarinol (4), together with three known compounds: citreoisocoumarinol (5), citreoisocoumarin (6), and macrocarpon C (7) were isolated from the culture of the endophytic fungus Nectria sp ...
Hui Cui   +9 more
doaj   +1 more source

Exploring the Roles of Tuna‐Associated Acinetobacter sp. YFT067: Implications for Host Health and Metabolism

open access: yesAnimal Research and One Health, EarlyView.
This study firstly isolated a tuna‐derived gut probiotic Acinetobacter seifertii YFT067. Dietary administration of YFT067 played significant roles in promoting growth performance, SCFAs production, lipid absorption, and metabolism of the host, indicating YFT067 as a promising probiotic candidate for enhancing tuna aquaculture productivity through ...
Ying Zou   +4 more
wiley   +1 more source

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