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Li XD, Li XM, Wang BG, Li X. Antimicrobial sesterterpenoids with a unique 5/8/6/5 tetracyclic carbon-ring-system and diepoxide polyketides from a deep sea-sediment-sourced fungus Chaetomium globosum SD-347. Org Biomol Chem 2024; 22:3979-3985. [PMID: 38691112 DOI: 10.1039/d4ob00449c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
Two new sesterterpenoids, sesterchaetins A and B (1 and 2), and two new diepoxide polyketides, chaetoketoics A and B (3 and 4), were characterized from the culture extract of Chaetomium globosum SD-347, a fungal strain derived from deep sea-sediment. Their structures and absolute configurations were unambiguously determined by detailed NMR, mass spectra, and X-ray crystallographic analysis. Compounds 1 and 2 contained a distinctive 5/8/6/5 tetracyclic carbon-ring-system, which represented a rarely occurring natural product framework. The new isolates 1-4 exhibited selective antimicrobial activities against human and aquatic pathogenic bacteria and plant-pathogenic fungi.
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Affiliation(s)
- Xiao-Dong Li
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Nanhai Road 7, Qingdao 266071, People's Republic of China
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Chunhui Road 17, Yantai 264003, People's Republic of China
- University of Chinese Academy of Sciences, Yuquan Road 19A, Beijing 100049, People's Republic of China
| | - Xiao-Ming Li
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Nanhai Road 7, Qingdao 266071, People's Republic of China
| | - Bin-Gui Wang
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Nanhai Road 7, Qingdao 266071, People's Republic of China
- University of Chinese Academy of Sciences, Yuquan Road 19A, Beijing 100049, People's Republic of China
- Laboratory for Marine Biology and Biotechnology, Qingdao Marine Science and Technology Center, Wenhai Road 1, Qingdao, 266237, People's Republic of China.
| | - Xin Li
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Nanhai Road 7, Qingdao 266071, People's Republic of China
- Laboratory for Marine Biology and Biotechnology, Qingdao Marine Science and Technology Center, Wenhai Road 1, Qingdao, 266237, People's Republic of China.
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Carroll AR, Copp BR, Grkovic T, Keyzers RA, Prinsep MR. Marine natural products. Nat Prod Rep 2024; 41:162-207. [PMID: 38285012 DOI: 10.1039/d3np00061c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2024]
Abstract
Covering: January to the end of December 2022This review covers the literature published in 2022 for marine natural products (MNPs), with 645 citations (633 for the period January to December 2022) referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, the submerged parts of mangroves and other intertidal plants. The emphasis is on new compounds (1417 in 384 papers for 2022), together with the relevant biological activities, source organisms and country of origin. Pertinent reviews, biosynthetic studies, first syntheses, and syntheses that led to the revision of structures or stereochemistries, have been included. An analysis of NP structure class diversity in relation to biota source and biome is discussed.
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Affiliation(s)
- Anthony R Carroll
- School of Environment and Science, Griffith University, Gold Coast, Australia.
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, Australia
| | - Brent R Copp
- School of Chemical Sciences, University of Auckland, Auckland, New Zealand
| | - Tanja Grkovic
- Natural Products Branch, Developmental Therapeutics Program, Division of Cancer Treatment and Diagnosis, and Molecular Targets Program, Center for Cancer Research, National Cancer Institute, Frederick, MD, USA
| | - Robert A Keyzers
- Centre for Biodiscovery, and School of Chemical and Physical Sciences, Victoria University of Wellington, Wellington, New Zealand
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Fan J, Guo F, Zhao C, Li H, Qu T, Xiao L, Du F. Secondary Metabolites with Herbicidal and Antifungal Activities from Marine-Derived Fungus Alternaria iridiaustralis. J Fungi (Basel) 2023; 9:716. [PMID: 37504705 PMCID: PMC10381437 DOI: 10.3390/jof9070716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/24/2023] [Accepted: 06/28/2023] [Indexed: 07/29/2023] Open
Abstract
Weed and soil-borne pathogens could synergistically affect vegetable growth and result in serious losses. Investigation of agricultural bioactive metabolites from marine-derived fungus Alternaria iridiaustralis yielded polyketides (1-4), benzopyrones (5-7), meroterpenoid derivatives (8), and alkaloid (9). The structures and absolute configurations of new 1, 3, 5-6, and 8 were elucidated by extensive spectroscopic analyses, as well as comparisons between measured and calculated ECD and 13C NMR data. Compounds 1-4, 6, and 9 showed herbicidal potentials against the radicle growth of Echinochloa crusgalli seedlings. Especially 9 exhibited inhibition rates over 90% at concentrations of 20 and 40 μg/mL, even better than the commonly used chemical herbicide acetochlor. Furthermore, 9 also performed a wide herbicidal spectrum against the malignant weeds Digitaria sanguinalis, Portulaca oleracea, and Descurainia sophia. Compounds 5-8 showed antifungal activities against carbendazim-resistant strains of Botrytis cinerea, with minimum inhibitory concentration (MIC) values ranging from 32 to 128 μg/mL, which were better than those of carbendazim (MIC = 256 μg/mL). Especially 6 exhibited integrated effects against both soil-borne pathogens and weed. Overall, marine-derived fungus A. iridiaustralis, which produces herbicidal and antifungal metabolites 1-9, showed the potential for use as a microbial pesticide to control both weed and soil-borne pathogens.
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Affiliation(s)
- Jinqing Fan
- College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao 266109, China
| | - Fangfang Guo
- College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao 266109, China
| | - Chen Zhao
- College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao 266109, China
| | - Hong Li
- College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao 266109, China
| | - Tianli Qu
- College of Chemistry and Pharmacy, Qingdao Agricultural University, Qingdao 266109, China
| | - Lin Xiao
- College of Chemistry and Pharmacy, Qingdao Agricultural University, Qingdao 266109, China
| | - Fengyu Du
- College of Chemistry and Pharmacy, Qingdao Agricultural University, Qingdao 266109, China
- Shandong Key Laboratory of Applied Mycology, Qingdao Agricultural University, Qingdao 266109, China
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Li YH, Mándi A, Li HL, Li XM, Li X, Meng LH, Yang SQ, Shi XS, Kurtán T, Wang BG. Isolation and characterization of three pairs of verrucosidin epimers from the marine sediment-derived fungus Penicillium cyclopium and configuration revision of penicyrone A and related analogues. MARINE LIFE SCIENCE & TECHNOLOGY 2023; 5:223-231. [PMID: 37275535 PMCID: PMC10232390 DOI: 10.1007/s42995-023-00173-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 01/27/2023] [Indexed: 06/07/2023]
Abstract
Verrucosidins, a methylated α-pyrone class of polyketides rarely reported upon, have been implicated in one or more neurological diseases. Despite the significance of verrucosidins as neurotoxins, the absolute configurations of most of the derivatives have not been accurately characterized yet. In this study, three pairs of C-9 epimeric verrucosidin derivatives, including the known compounds penicyrones A and B (1a/1b) and 9-O-methylpenicyrones A and B (2a/2b), the new compounds 9-O-ethylpenicyrones A and B (3a/3b), together with the related known derivative verrucosidin (4), were isolated and identified from the culture extract of Penicillium cyclopium SD-413, which was obtained from the marine sediment collected from the East China sea. Their structures were established based on an in-depth analysis of nuclear magnetic resonances (NMR) and mass spectroscopic data. Determination of the absolute configurations of these compounds was accomplished by Mosher's method and time-dependent density functional theory (TDDFT) calculations of electronic circular dichroism (ECD) and optical rotation (OR). The configurational assignment of penicyrone A demonstrated that the previously reported C-6 absolute configuration of verrucosidin derivatives needs to be revised from (6S) to (6R). The 9R/9S epimers of compounds 1-3 were found to exhibit growth inhibition against some pathogenic bacteria, indicating that they have potential as lead compounds for the creation of antimicrobial agents. Supplementary Information The online version contains supplementary material available at 10.1007/s42995-023-00173-2.
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Affiliation(s)
- Yan-He Li
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, and Laboratory of Marine Biology and Biotechnology at the Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071 China
- School of Marine Science, University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Attila Mándi
- Department of Organic Chemistry, University of Debrecen, Egyetem Tér 1, Debrecen, 4032 Hungary
| | - Hong-Lei Li
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, and Laboratory of Marine Biology and Biotechnology at the Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071 China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071 China
| | - Xiao-Ming Li
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, and Laboratory of Marine Biology and Biotechnology at the Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071 China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071 China
| | - Xin Li
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, and Laboratory of Marine Biology and Biotechnology at the Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071 China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071 China
| | - Ling-Hong Meng
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, and Laboratory of Marine Biology and Biotechnology at the Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071 China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071 China
| | - Sui-Qun Yang
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, and Laboratory of Marine Biology and Biotechnology at the Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071 China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071 China
| | - Xiao-Shan Shi
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, and Laboratory of Marine Biology and Biotechnology at the Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071 China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071 China
| | - Tibor Kurtán
- Department of Organic Chemistry, University of Debrecen, Egyetem Tér 1, Debrecen, 4032 Hungary
| | - Bin-Gui Wang
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, and Laboratory of Marine Biology and Biotechnology at the Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071 China
- School of Marine Science, University of Chinese Academy of Sciences, Beijing, 100049 China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071 China
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Synthetic studies for destruxins and biological evaluation for osteoclast-like multinucleated cells: a review. J Antibiot (Tokyo) 2022; 75:420-431. [PMID: 35821085 DOI: 10.1038/s41429-022-00540-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/14/2022] [Accepted: 06/17/2022] [Indexed: 11/09/2022]
Abstract
Synthesis of various destruxin analogs was accomplished using Shiina's macrolactonization as a key reaction. Combinatorial synthesis of cyclization precursors using solid-phase peptide synthesis and macrolactonization in solution were successful. In the synthesis of destruxin E and its analogs, the hydroxyacid-proline (HA1-Pro2) dipeptide with an acetonide-protected diol moiety was synthesized in an asymmetric manner, and the protected diol was converted to an epoxide after macrocyclization. Destruxin E was synthesized on a gram scale using solution-phase synthesis. The structure-activity relationships of destruxins were elucidated through biological evaluation of synthetic destruxins A, B, and E and their analogs for morphological changes in osteoclast-like multinucleated cells.
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