A new diacylgalactolipid containing 4<i>Z</i>‐16∶1 from the marine cyanobacterium <i>Oscillatoria</i> sp

Son, Byeng Wha; Kim, Jung Chul; Choi, Hong Dae

doi:10.1007/s11745-001-0739-z

Cited by 8 publications

(5 citation statements)

References 5 publications

(2 reference statements)

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“…yielded a diacylgalactolipid 87. 92 The total stereochemistry of symplostatin 1 88, a metabolite of Symploca hydnoides, 93 was completed by determination of the stereochemistry of the N,Ndimethylisoleucine unit to be (S,S ). 94 The same paper reported the isolation of dolastatin 10 from a Symploca species, suggesting that cyanobacteria are the ultimate producers of this metabolite, rather than the sea hare Dolabella auricularia from which it was originally isolated.…”

Section: Marine Microorganisms and Phytoplanktonmentioning

confidence: 99%

Marine natural products

et al. 2002

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This review covers the literature published in 2001 for marine natural products, with 497 citations (373 for the period January to December 2001) and includes 793 compounds isolated from marine microorganisms and phytoplankton, green algae, brown algae, red algae, sponges, coelenterates, bryozoans, molluscs, tunicates and echinoderms. The emphasis is on new compounds and new stereochemical assignments (683 for 2001), together with relevant biological activities, source organisms and country of origin. Syntheses that confirm or revise structures or stereochemistries have been included (95), including any first total synthesis of a marine natural product.

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Section: Marine Microorganisms and Phytoplanktonmentioning

confidence: 99%

Marine natural products

et al. 2002

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“…The marine cyanobacterium Oscillatoria sp. produces a new diacylgalactolipid comprising 9,12-octadecadienoyl and 4-hexadecenoyl chains [44], whilst Lyngbya majuscule produces bioactive secondary malyngamides, such as Malyngamide G and 7-methoxydodec-4( E )-enoic acid [45,46]. …”

Section: Lipid Production In Marine Micro-organismsmentioning

confidence: 99%

Lipids of Prokaryotic Origin at the Base of Marine Food Webs

Carvalho

Caramujo

2012

Marine Drugs

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In particular niches of the marine environment, such as abyssal trenches, icy waters and hot vents, the base of the food web is composed of bacteria and archaea that have developed strategies to survive and thrive under the most extreme conditions. Some of these organisms are considered “extremophiles” and modulate the fatty acid composition of their phospholipids to maintain the adequate fluidity of the cellular membrane under cold/hot temperatures, elevated pressure, high/low salinity and pH. Bacterial cells are even able to produce polyunsaturated fatty acids, contrarily to what was considered until the 1990s, helping the regulation of the membrane fluidity triggered by temperature and pressure and providing protection from oxidative stress. In marine ecosystems, bacteria may either act as a sink of carbon, contribute to nutrient recycling to photo-autotrophs or bacterial organic matter may be transferred to other trophic links in aquatic food webs. The present work aims to provide a comprehensive review on lipid production in bacteria and archaea and to discuss how their lipids, of both heterotrophic and chemoautotrophic origin, contribute to marine food webs.

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“…As part of an effort to discover biologically active natural products from marine organisms, 1 we investigated bioactive constituents of the marine algicolous fungus Aspergillus parasiticus and isolated a fairly unstable epoxycyclohexenone, parasitenone (1), and two known benzyl alcohols, 3-chloro-4,5-dihydroxybenzyl alcohol (2) 2 and gentisyl alcohol (3). 3 Parasitenone (1) was isolated as a very unstable colorless oil, which was deduced to have the molecular formula C 7 H 8 O 4 from the HREIMS of its diacetate (1a) and 13 C NMR data of 1 and 1a.…”

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confidence: 99%

“…5 The absolute configuration of 1 was further supported by chemospecific oxidation of the secondary allylic hydroxyl of 1 with pyridinium dichromate (PDC) in DMF to 1b, which was identified by direct comparison of its spectral data with those of natural (-)-phyllostine (1b). 4,6 On the basis of the above evidence, the structure of parasitenone was determined to be (4S,5S,6S)-5,6-epoxy-4-hydroxy-3hydroxymethylcyclohex-2-en-1-one (1).…”

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confidence: 99%

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Parasitenone, a New Epoxycyclohexenone Related to Gabosine from the Marine-Derived Fungus Aspergillus parasiticus

et al. 2002

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Bioassay-guided fractionation of an organic extract of the broth from the marine-derived fungus culture of Aspergillus parasiticus led to the isolation and subsequent structural elucidation of a new gabosine derivative, parasitenone (1), and two known benzyl alcohols, 3-chloro-4,5-dihydroxybenzyl alcohol (2) and gentisyl alcohol (3). The benzyl alcohols (2, 3) were identified as the principal free radical scavenging components. Parasitenone (1) also showed moderate activity in the free radical scavenging assay.

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A new diacylgalactolipid containing 4Z‐16∶1 from the marine cyanobacterium Oscillatoria sp

Cited by 8 publications

References 5 publications

Marine natural products

Marine natural products

Lipids of Prokaryotic Origin at the Base of Marine Food Webs

Parasitenone, a New Epoxycyclohexenone Related to Gabosine from the Marine-Derived Fungus Aspergillus parasiticus

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