Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Kumudini M, Meepagala"'
Publikováno v:
ACS Omega, Vol 9, Iss 33, Pp 35560-35566 (2024)
Externí odkaz:
https://doaj.org/article/993f30a22fdd4e588c92616811a30dd6
Publikováno v:
Plant Signaling & Behavior, Vol 19, Iss 1 (2024)
A bacterium growing on infected leaves of Hydrocotyle umbellata, commonly known as dollarweed, was isolated and identified as Pantoea ananatis. An ethyl acetate extract of tryptic soy broth (TSB) liquid culture filtrate of the bacterium was subjected
Externí odkaz:
https://doaj.org/article/547fc78af0814f309c64985beb4a2010
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:
Kumudini M. Meepagala, Tamang Prabin
Publikováno v:
Agricultural Sciences. 14:346-355
Publikováno v:
Journal of Economic Entomology. 114:2485-2492
We previously extracted and purified a chromene amide from Amyris texana and found this scaffold is moderately insecticidal and thus, this study aimed to test the insecticidal properties of 13 synthetically derived chromene analogs to the fall armywo
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:
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
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
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