Zobrazeno 1 - 10
of 177
pro vyhledávání: '"David E. Wedge"'
Autor:
Kumudini M. Meepagala, Amy K. Bracken, Frank R. Fronczek, Robert D. Johnson, David E. Wedge, Stephen O. Duke
Publikováno v:
ACS Omega, Vol 6, Iss 1, Pp 401-407 (2020)
Externí odkaz:
https://doaj.org/article/9f747de0d5694e46a4f8c738654c3a52
Autor:
Wilmer H. Perera, Kumudini M. Meepagala, Frank R. Fronczek, Daniel D. Cook, David E. Wedge, Stephen O. Duke
Publikováno v:
Molecules, Vol 24, Iss 5, p 835 (2019)
The discovery of potent natural and ecofriendly pesticides is one of the focuses of the agrochemical industry, and plant species are a source of many potentially active compounds. We describe the bioassay-guided isolation of antifungal and phytotoxic
Externí odkaz:
https://doaj.org/article/1050370279584e208bb936f5dc650472
Autor:
Kanniah Rajasekaran, Jian Chen, James J. Becnel, Natasha M. Agramonte, Ulrich R. Bernier, Maia Tsikolia, Kemal Husnu Can Baser, Betul Demirci, David E. Wedge, Nurhayat Tabanca, Blair J. Sampson, Hamidou F. Sakhanokho, James M. Spiers
Publikováno v:
Molecules, Vol 18, Iss 4, Pp 4308-4327 (2013)
The antimicrobial properties of essential oils have been documented, and their use as “biocides” is gaining popularity. The aims of this study were to analyze the chemical composition and assess the biological activities of Hedychium essential oi
Externí odkaz:
https://doaj.org/article/6823692cd89942baa2fa8b0eaadefa65
Autor:
David E. Wedge, Ikhlas A. Khan, Shabana I. Khan, Abbas Ali, Ahmet Ozgur Celen, Nurhayat Tabanca, Bedia Kocyigit-Kaymakcioglu
Publikováno v:
Molecules, Vol 18, Iss 3, Pp 3562-3576 (2013)
A series of novel thiourea and urea derivatives containing 1,2,4-triazole moieties were synthesized and evaluated for their antifungal and larvicidal activity. Triazole derivatives 3a–e and 4a–e were synthesized by reacting thiocarbohydrazide wit
Externí odkaz:
https://doaj.org/article/29c038e33d9e461a84a7f1b8ad214187
Autor:
Kevin K. Schrader, Nurhayat Tabanca, David E. Wedge, Kumudini M. Meepagala, Charles L. Cantrell, Stephen O. Duke
Publikováno v:
Toxins, Vol 2, Iss 8, Pp 1943-1962 (2010)
Natural toxins are a source of new chemical classes of pesticides, as well as environmentally and toxicologically safer molecules than many of the currently used pesticides. Furthermore, they often have molecular target sites that are not exploited b
Externí odkaz:
https://doaj.org/article/9ca5d8fba9fd48afac09ee8471278757
Autor:
Yufeng Chen, Yongzan Wei, Bingyu Cai, Dengbo Zhou, Dengfeng Qi, Miaoyi Zhang, Yankun Zhao, Kai Li, David E. Wedge, Zhiqiang Pan, Jianghui Xie, Wei Wang
Publikováno v:
Journal of Agricultural and Food Chemistry. 70:12784-12795
Autor:
Frank R. Fronczek, Amy K Bracken, David E. Wedge, Kumudini M. Meepagala, Robert D. Johnson, Stephen O. Duke
Publikováno v:
ACS Omega, Vol 6, Iss 1, Pp 401-407 (2020)
Bioassay-guided fractionation of the ethyl acetate extract of Amyris elemifera leaves was carried out to identify phytotoxic and antifungal constituents. A novel phytotoxic furanocoumarin 8-(3-methylbut-2-enyloxy)-marmesin acetate (1) and its deacyl
Publikováno v:
Phytochemistry Letters. 37:51-58
Herein, we describe the isolation and identification of four new and three known sesquiterpenes from the culture broth of the fungus Stereum complicatum. Chemical structures were elucidated based on HR-DART-MS, 1D and 2D NMR experiments. Compounds we
Synthesis and biological activity of novel 1,3,4-oxadiazole derivatives containing a pyrazole moiety
Autor:
David E. Wedge, Yong-Gang Zhang, Cheng-Xia Tan, Zhi-Wen Zhai, Stephen O. Duke, Xing-Hai Liu, Jian-Quan Weng, Yu Wei, Wu Hongke
Publikováno v:
Research on Chemical Intermediates. 45:5989-6001
Several new 1,3,4-oxadiazole derivatives containing a pyrazole ring were designed and synthesized from ethyl acetoacetate and triethyl orthoformate as starting materials via multi-step reactions. The compound structures were confirmed by melting poin
Publikováno v:
Journal of Agricultural Chemistry and Environment. :115-128
Brachiaria eruciformis (sm.) Griseb, locally known as “signal grass”, is a common weed in lawns and turfs in Mississippi, USA. During late spring and early summer months, leaves of B. eruciformis are infected with a fungus causing necrosis. The i