| Title: | "Chemical Composition, Algicidal, Antimicrobial, and Antioxidant Activities of the Essential Oils of Taiwania flousiana Gaussen" |
| Author(s): | Liu H; Huang J; Yang S; Li J; Zhou L; |
| Address: | "Key Lab of Natural Pesticides & Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, Guangdong 510642, China. Organic Agriculture, Wageningen University and Research, Gelderland, Wageningen 6708 PB, The Netherlands" |
| DOI: | 10.3390/molecules25040967 |
| ISSN/ISBN: | 1420-3049 (Electronic) 1420-3049 (Linking) |
| Abstract: | "Taiwania flousiana (T. flousiana) Gaussen is a precious wood in the family Taxodiaceae. This study investigated the chemical components of the essential oil from the stem bark of T. flousiana and its algicidal, antifungal, and antioxidant properties. Sixty-nine compounds representing 89.70% of the stem bark essential oil were identified by GC-MS. The essential oil showed strong anti-algae, anti-bacteria, and anti-fungus activities against the tested species, and antioxidant activities. The IC(50) values of the essential oil against chlorophyll a, chlorophyll b, and the total chlorophyll of Spirogyra communis (a species of algae), 24-96 h after the treatment, ranged from 31.77 to 84.92 mug/mL, while the IC(50) values of butachlor ranged from 40.24 to 58.09 mug/mL. Ultrastructure changes revealed by the transmission electron microscopy indicated that the main algicidal action sites were the chloroplast and cell wall. The essential oil showed antifungal activities on Rhizoctonia solani (EC(50) = 287.94 mug/mL) and Colletotrichum gloeosporioiles (EC(50) = 378.90 mug/mL). It also showed bactericidal activities on Ralstonia solanacearum and Staphylococcus aureus, with zones of inhibition (ZOIs) being 18.66 and 16.75 mm, respectively at 40 mug/disk. Additionally, the essential oil possessed antioxidant activity estimated by 2,2-diphenyl-1-picrylhydrazyl (DPPH) method (IC(50) = 33.51 mug/mL; IC(50) value of the positive control ascorbic acid was 7.98 mug/mL). Thus, the essential oil of this plant might be used as a possible source of natural bioactive molecules in agrochemical industry as well as in food and cosmetic industries" |
| Keywords: | "Anti-Infective Agents/chemistry/pharmacology *Antioxidants/chemistry/pharmacology Colletotrichum/growth & development Cupressaceae/*chemistry *Oils, Volatile/chemistry/pharmacology Ralstonia solanacearum/growth & development Rhizoctonia/growth & developme;" |
| Notes: | "MedlineLiu, Hongmei Huang, Jiguang Yang, Sifan Li, Jialin Zhou, Lijuan eng 2019KJ134/Common Key Technology R&D and Innovation of Modern Agricultural Industry of Guangdong Province, China/ (2018A0303130093) and (2015A020209151)/Science and Technology Planning Projects of Guangdong Province, China/ Switzerland 2020/02/26 Molecules. 2020 Feb 20; 25(4):967. doi: 10.3390/molecules25040967" |
