Bioactive Cyclodepsipeptides from Cocultured Mangrove-Derived sp. and sp.

Three new arthrichitin derivatives I-K (-) and three known congeners (-) were isolated from a coculture of mangrove-derived fungi sp. and sp. using H NMR-guided fractionation.

Sonnerachromones A-G, Antiaging Chromones from the Fruit of Mangrove .

Seven novel chromone derivatives, sonnerachromones A-G (-), were isolated from the fruit of mangrove . Compounds - contain a 6/5/6/6/tetracyclic system with rare -glycosyl spirocyclic skeletons. The unusual structures were identified by analysis of HRESIMS data, NMR spectra, electronic circular dichroism (ECD), DFT-calculated C NMR chemical shifts, DP4plus probability analysis, and single-crystal X-ray diffraction.

Bioactive Sesterterpenoids from the Mangrove-Derived sp. GXIMD 03023.

Four novel sesterterpenoids, asperterpenoids Q-T (-), featuring a rare 5/7/(3)6/5 pentacyclic skeleton were isolated from the mangrove-derived fungus sp. GXIMD 03023 using an NMR-guided approach. Their structures and absolute configurations were determined by comprehensive spectroscopic analysis, including 1D/2D-NMR and HRESIMS, supplemented by experimental and ECD spectral matching, DFT-calculated C NMR chemical shifts, and DP4plus probability analysis.

Chemical Constituents of the Deep-Sea-Derived Fungus Trichoderma simmonsii ZEN3.

Two new nor-rubrofusarin derivatives (trichsimins A and B, 1 and 2) and one new chromone derivative (trichsimin C, 5) were isolated from the deep-sea-derived Trichoderma simmonsii ZEN3 along with 20 known compounds (3, 4, and 6-23). The structures of the new compounds were established by detailed analyses of the NMR, HRESIMS, and optical rotatory dispersion (ORD) data. Nafuredin (14) exhibited potent inhibition against RSL3-induced ferroptosis with an EC value of 5.

Asperhydrindane A, a new hydrindane derivate isolated from a mangrove-derived fungi GXIMD 03158.

A new hydrindane derivative, asperhydrindane A (), along with two known sterol analogues [isocyathisterol () and ganodermasides D ()] were isolated from the mangrove-derived fungus GXIMD 03158 attaching to the mangrove L. The structure of was elucidated based on extensive spectral analysis, HRESIMS, and calculated ECD methods. All compounds were evaluated for antibacterial activity.

Cadophorin C, a new cyclic heptapeptide isolated from a mangrove-derived fungus sp. GXIMD 03101.

One new cyclic heptapeptide, cadophorin C (), and one known analogue cadophorin B () were isolated from the mangrove-derived fungus sp. GXIMD 03101 from the mangrove  L. The chemical structure of was elucidated by comprehensive analysis of the spectroscopic data, including 1D and 2D NMR and HRESIMS, and the known compound was identified by comparing the data with literature values.

Millmerranones G, a meroterpene isolated from a mangrove-derived fungus sp. GXIMD 03004.

One new meroterpene derivative, millmerranones G (), and three known analogues (-) were identified from the mangrove-derived fungus sp. GXIMD 03004, which was isolated from the leaves of mangrove L. collected from Beibu Gulf in China.

Mauritone A, a new polyketide from a fungal-bacterial symbiont GXIMD 04541/ GXIMD 04532.

A new polyketide, mauritone A () with six known polyketides curvulone B (), curvularin (), 12-oxocurvularin (), (10,15)-10,11-dehydrocurvularin (), (11,15)-11-hydroxycurvularin (), and (11,15)-11-hydroxycurvularin () were isolated from the fungal-bacterial symbiont GXIMD 04541/ GXIMD 04532 derived from . Their structures were elucidated by extensive spectral analysis. All compounds (-) were evaluated for their anti-inflammatory effects.

Secofumitremorgins C and D, a pair of atropisomers from saltern-derived fungus GXIMD00544.

A pair of atropisomers secofumitremorgins C () and D (), together with fifteen known alkaloids (), were isolated from a saltern-derived fungus GXIMD00544. The structures of atropisomers and were elucidated by the detailed spectroscopic data, chemical reaction and quantum chemical calculations. Compounds and displayed antifungal spore germination effects against plant pathogenic fungus associated with sugarcane sp.

Carneusones A-F, Benzophenone Derivatives from Sponge-Derived Fungus GXIMD00543.

Six benzophenone derivatives, carneusones A-F (-), along with seven known compounds (-) were isolated from a strain of sponge-derived marine fungus GXIMD00543. Their chemical structures were elucidated by detailed spectroscopic data and quantum chemical calculations. Compounds , , and exhibited moderate anti-inflammatory activity on NO secretion using lipopolysaccharide (LPS)-induced RAW 264.

Sonneralignan A, a new lignan from the fruit of mangrove .

A new lignan, sonneralignan A (), along with two known lignan compounds, (+)-lariciresinol-9---D-glucopyranoside () and (-)isolariciresinol-9---D-glucopyranoside () were isolated from the n-butanol extract of the mangrove fruit. The structures of the compounds were elucidated on the basis of extensive spectral analysis. The evaluation of activity showed that compound exhibited significant anti-aging activity, which extended the mean lifespan of by up to 19.

Penicixanthene E, a new xanthene isolated from a mangrove-derived fungus Penicillium sp.

One new xanthene derivative, named penicixanthene E (1), together with one known compound 2, was isolated from the EtOAc extract of the endophytic fungus Penicillium sp. GXIMD 03101, which was identified from the mangrove Acanthus ilicifolius L. collected in the South China Sea.

Sonneradon A Extends Lifespan of by Modulating Mitochondrial and IIS Signaling Pathways.

Aging is related to the lowered overall functioning and increased risk for various age-related diseases in humans. Sonneradon A (SDA), a new compound first extracted from the edible fruits of mangrove , showed remarkable antiaging activity. However, the role of SDA in antiaging remains unclear.

Two new benzophenones isolated from a mangrove-derived fungus Penicillium sp.

One new benzophenone derivative, named penibenzophenone C (1), and a new benzophenone natural product, neamed penibenzophenone D (2), together with two known compounds (3, 4) were isolated from the EtOAc extract of the endophytic fungus Penicillium sp. isolated from the mangrove Acanthus ilicifolius L. collected in the South China Sea.

Marinoid J, a phenylglycoside from fruit, ameliorates cognitive impairment in rat vascular dementia: a quantitative iTRAQ proteomic study.

Context: Fruit of (Forsk.) Vierh. (Acanthaceae) is used as a Chinese herb.

Cytotoxic benzopyranone and xanthone derivatives from a coral symbiotic fungus GXIMD 02502.

Coral-derived microorganisms have been historically proven to be prolific sources of bioactive secondary metabolites. Twelve benzopyranone and/or xanthone derivatives, including a new benzopyranone with an uncommon carboxyl group at C-8, coniochaetone K (), were obtained from the Beibu Gulf-derived coral symbiotic fungus GXIMD 02502. Their structures were determined by extensive spectroscopic data interpretation and comparison with literature values.

HPLC-DAD-Guided Isolation of Diversified Chaetoglobosins from the Coral-Associated Fungus C2F17.

Cytochalasans have continuously aroused considerable attention among the chemistry and pharmacology communities due to their structural complexities and pharmacological significances. Sixteen structurally diverse chaetoglobosins, 10-(indol-3-yl)-[13]cytochalasans, including a new one, 6--methyl-chaetoglobosin Q (), were isolated from the coral-associated fungus C2F17. Their structures were accomplished by extensive spectroscopic analysis combined with single-crystal X-ray crystallography and ECD calculations.

Sesquiterpenoids and meroterpenoids from a mangrove derived fungus sp. SCSIO 41011.

One new sesquiterpenoid, 1-methoxypestabacillin B (), along with one known sesquiterpenoid () and six known chrodrimanin-type meroterpenoids (‒) were obtained from the solid cultures of a mangrove endophytic fungus sp. SCSIO 41011. Their structures including the absolute configuration at C-6 of compound , were determined by extensive spectroscopic analyses and ECD calculations.

Nocardioides kandeliae sp. nov., an endophytic actinomycete isolated from leaves of Kandelia candel.

A Gram-stain-positive, aerobic, non-spore-forming, atrichous and short rod-shaped endophytic actinomycete, designated strain BGMRC 2075, was isolated from the leaves of Kandelia candel, and was subjected to polyphasic characterization to unravel its taxonomic position. Phylogenetic analyses based on 16S rRNA gene sequences indicated that strain BGMRC 2075 belongs to the genus Nocardioides ,showing the highest 16S rRNA gene sequence similarity to Nocardioides aestuarii JC2056 (96.1 %), Nocardioides agariphilus MSL-28 (95.

Nocardioides sonneratiae sp. nov., an endophytic actinomycete isolated from a branch of Sonneratia apetala.

A Gram-staining-positive, aerobic non-spore-forming and short-rod-shaped endophytic actinomycete was isolated from a branch of Sonneratia apetala, designated strain BGMRC0092T and investigated in detail data to determine its taxonomic position. On the basis of the 16S rRNA gene sequence analysis, the results of the phylogenetic analyses indicated that BGMRC0092T was most closely related to Nocardioides alpinus Cr7-14T (96.9 %), Nocardioides oleivorans DSM16090T (96.

Two New Secondary Metabolites from Tephrosia purpurea.

Further investigation of Tephrosia purpurea led to the isolation of a new prenylated flavone, isoglabratephrin B (1) and a new 1,2-ethanedione benzofuran derivative, purpdione B (2). The structures of the new isolates were elucidated on the basis of extensive spectroscopic analysis.