Zobrazeno 1 - 10
of 74
pro vyhledávání: '"Joseph J. Karchesy"'
Publikováno v:
BioResources, Vol 7, Iss 4, Pp 5415-5421 (2012)
The ability of selected plant extracts from wood and foliage to inhibit mold regrowth on fungal colonized wood was evaluated on Douglas-fir sapwood. Most foliage extracts produced some inhibition of Graphium or Trichoderma species, but isolations of
Externí odkaz:
https://doaj.org/article/eed2deee09f142cf851cb24565acba28
Publikováno v:
BioResources, Vol 7, Iss 3, Pp 3132-3141 (2012)
Bacillus subtilis and essential oils have been explored separately for their ability to limit colonization by wood stain and mold fungi, but neither approach has been completely effective. One alternative strategy would be to combine the bacterial bi
Externí odkaz:
https://doaj.org/article/3767ba7f912244a097a1d5e4ec0beaf6
Autor:
Rubén Francisco González-Laredo, José Alberto Gallegos-Infante, Joseph J. Karchesy, Martha Rosales-Castro, Nuria Elizabeth Rocha-Guzmán, Javier Peralta-Cruz
Publikováno v:
Madera y Bosques. 15:87-105
Se evaluó la concentración de fenoles totales, flavonoides y proantocianidinas en extractos de acetona acuosa 70% (extracto crudo) y extractos semipurificados por partición líquido-líquido con acetato de etilo (extracto orgánico), de cortezas d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3fb30b045d5cc6c318c447505cfa205f
https://doi.org/10.21829/myb.2009.1531187
https://doi.org/10.21829/myb.2009.1531187
Publikováno v:
Journal of chemical ecology. 44(5)
Yellow-cedar, Callitropsis nootkatensis, is prevalent in coastal forests of southeast Alaska, western Canada, and inland forests along the Cascades to northern California, USA. These trees have few microbial or animal pests, attributable in part to t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2fb2b6143ed8b97469b279ff7b04705
https://pubmed.ncbi.nlm.nih.gov/29654493
https://pubmed.ncbi.nlm.nih.gov/29654493
Insecticides based on botanical sources have taken on increased attention due to differing modes of action from current insecticides in use and the view that they may be environmentally friendly. Thymoquinone, a component in the essential oil of ince
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afeb9853ae4ec43d27597365e39e9be3
https://europepmc.org/articles/PMC5788314/
https://europepmc.org/articles/PMC5788314/
Autor:
Martha Rosales-Castro, Rubén F. González-Laredo, Young-Soo Bae, Jin Kgu Kim, Jeff Morre, Joseph J. Karchesy
Publikováno v:
Records of Natural Products, Vol 8, Iss 3, Pp 217-227 (2014)
The structure and antioxidant activity of condensed tannins isolated from Alaska Cedar inner bark have been investigated. Oligomers of flavan-3-ol were purified by column chromatography (Sephadex LH-20) and analyzed by 13CNMR and MALDI-TOF MS spectro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doajarticles::7e443453f3e3c0d88874b4607aa6b1b0
Publikováno v:
SpringerPlus
The brine shrimp (Artemia salina) bioassay was used to screen 211 methanol extracts from 128 species of Pacific Northwest plants in search of general cytotoxic activity. Strong toxicity (LC50 1000 µg/ml). Our subsequent studies of conifer heartwoods
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::30ff48fcd3d863022af6bf668a2a01cf
https://doi.org/10.1186/s40064-016-2145-1
https://doi.org/10.1186/s40064-016-2145-1
Autor:
Nuria Elizabeth Rocha-Guzmán, María José Rivas-Arreola, José Alberto Gallegos-Infante, Joseph J. Karchesy, Martha Rosales-Castro, Rubén Francisco González-Laredo
Publikováno v:
hfsg. 66:577-584
The most active phenolics in Quercus sideroxyla Humb. & Bonpl. residual bark were identified and evaluated following a chromatographic fractionation. Bark powder was defatted with hexane and crude extract (CE) was obtained by extraction with aqueous
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ff4e63dd277036ca73aa723655c4d30
https://doi.org/10.1515/hf-2011-0157
https://doi.org/10.1515/hf-2011-0157
Autor:
Marc C. Dolan, Robert A. Jordan, Daniel Ruffolo, Joseph Piesman, Mark Cornell Manning, Joseph J. Karchesy, Terry L. Schulze, Jason Schmidt, Christopher J. Schulze
Publikováno v:
Journal of Economic Entomology. 102:2316-2324
We evaluated the ability of the natural, plant-derived acaricides nootkatone and carvacrol to suppress Ixodes scapularis Say and Amblyomma americanum (L.) (Acari: Ixodidae). Aqueous formulations of 1 and 5% nootkatone applied by backpack sprayer to t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39bc4a6dcbde088c34cdde928133248d
https://doi.org/10.1603/029.102.0638
https://doi.org/10.1603/029.102.0638
Publikováno v:
Journal of Chemical Ecology. 33:2133-2147
Ethyl acetate extracts from heartwood of seven western conifer trees and individual volatile compounds in the extracts were tested for antimicrobial activity against Phytophthora ramorum. Extracts from incense and western redcedar exhibited the stron
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f24941cb59a42850413e2989a32c0700
https://doi.org/10.1007/s10886-007-9368-0
https://doi.org/10.1007/s10886-007-9368-0