The most promising anti-tumor agent developed in the past three decades is Taxol. It is proven to be effective against many cancers. It is necessary to isolate pharmacologically potent endophytic microbial strains from medicinal plants with special reference to Taxol production. In the current study, endophytic fungi were isolated from the bark of the medicinal plant, The isolated endophytes were identified morphologically, and further characterized by ITS-PCR using genomic DNA samples, later the products were sequenced for identification and phylogenetic linkage mapping. The samples were screened for the potential to produce Taxol or taxanes, employing PCR. The resulted data have been sequenced to confirm the presence of the two genes implicated in Taxol biosynthesis, 10-deacetylbaccatin III-10-O-acetyl transferase (DBAT) and C-13 phenylpropanoid side chain-CoA acyltransferase (BAPT). Seven samples showed the amplicons of DBAT gene and one showed the amplicons of BAPT gene. Sequencing of these products was carried out, of which one sample has revealed sequence homology to the original DBAT gene from . The present work confirms and substantiates the potential of genomic mining approach to discover novel Taxol-producing endophytic fungi.
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http://dx.doi.org/10.1016/j.jgeb.2015.09.002 | DOI Listing |
Chem Biodivers
January 2025
Yantai Institute of Coastal Zone Research, Coastal biology and Bioresource Utilization, 17 Chunhui Road, 264003, Yantai, CHINA.
The fungal genus Fusarium is a treasure-trove of structurally diverse secondary metabolites, contributed greatly by marine-derived strains. A new cedrane sesquiterpene, fusacedrol (1), and a new fusarin member, fusarin M (2), were isolated from F. graminearum 12Ⅱ2N that was isolated as an endophyte from the marine brown alga Sargassum sp.
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January 2025
Anhui Province Key Laboratory of Bioactive Natural Products, School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012 China; Science & Technology Industrial Parks of Anhui University of Chinese Medicine, Hefei 230012 China. Electronic address:
Eleven cytochalasans (1-11), including six undescribed analogues (1-3 and 5-7) and a new natural product (4), were obtained from the endophytic fungus Boeremia exigua. Their structures and absolute configurations were determined by a combination of extensive spectroscopic techniques, electron circular dichroism (ECD), and single-crystal X-ray diffraction. Boerelasin E (1) represented the first cytochalasan possessing a cis-configured Δ double bond.
View Article and Find Full Text PDFPlants (Basel)
January 2025
Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China.
Endophytic fungi possess a unique ability to produce abundant secondary metabolites, which play an active role in the growth and development of host plants. In this study, chemical investigations on the endophytic fungus TE-739D derived from the cultivated tobacco ( L.) afforded two new polyketide derivatives, namely japoniones A () and B (), as well as four previously reported compounds -.
View Article and Find Full Text PDFInt J Mol Sci
January 2025
Xinjiang Key Laboratory of Special Environmental Microbiology, Institute of Microbiology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China.
Soil salinization poses a significant challenge to global agriculture, particularly in arid and semi-arid regions like Xinjiang. , a halophytic plant adapted to saline-alkaline conditions, harbors endophytic microorganisms with potential plant growth-promoting properties. In this study, 177 endophytic bacterial strains were isolated from , and 11 key strains were identified through functional screening based on salt tolerance, nutrient solubilization, and growth-promoting traits.
View Article and Find Full Text PDFMicroorganisms
December 2024
Botanical Garden, Vilnius University, Kairėnų 43, 10239 Vilnius, Lithuania.
Many endophytic fungi are approved as plant growth stimulants, and several commercial biostimulants have already been introduced in agricultural practice. However, there are still many species of fungi whose plant growth-promoting properties have been understudied or not studied at all. We examined the growth-promoting effect in spring barley () and Italian ryegrass () induced by three endophytic fungi previously obtained from the roots of / grasses.
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