Results 21 to 30 of about 7,356 (260)

Geosmin suppresses defensive behaviour and elicits unusual neural responses in honey bees

Scientific Reports, 2023
Geosmin is an odorant produced by bacteria in moist soil. It has been found to be extraordinarily relevant to some insects, but the reasons for this are not yet fully understood. Here we report the first tests of the effect of geosmin on honey bees.
Florencia Scarano, Mukilan Deivarajan Suresh, Ettore Tiraboschi, Amélie Cabirol, Morgane Nouvian, Thomas Nowotny, Albrecht Haase   +6 more
doaj   +1 more source

Beta vulgaris ssp. vulgaris chromosome 8 shows significant association with geosmin concentration in table beet

G3: Genes, Genomes, Genetics, 2021
Geosmin, a degraded sesquiterpene molecule with earthy and musty odor, imbues table beet with its characteristic aroma. Geosmin is heritable and endogenously produced in table beet; its earthy aroma is sought by some consumers but deters others.
Solveig J Hanson, Julie C Dawson, Irwin L Goldman   +2 more
doaj   +1 more source

Volatile sensation: The chemical ecology of the earthy odorant geosmin.

Environmental Microbiology, 2023
Geosmin may be the most familiar volatile compound, as it lends the earthy smell to soil. The compound is a member of the largest family of natural products, the terpenoids. The broad distribution of geosmin among bacteria in both terrestrial and aquatic
P. Garbeva, Mariana Avalos, D. Ulanova, G. V. van Wezel, Jeroen S. Dickschat   +4 more
semanticscholar   +1 more source

Producers and drivers of odor compounds in a large drinking-water source

Frontiers in Ecology and Evolution, 2023
IntroductionTaste and odor (T&O) problems have been affecting drinking water safety. As a eutrophicated drinking water reservoir in Tianjin city, the Yuqiao Reservoir was threatened by 2-MIB and geosmin in recent years.MethodsIn this study, quantile ...
Pengfei Qiu, Pengfei Qiu, Yuheng Zhang, Yuheng Zhang, Wujuan Mi, Wujuan Mi, Gaofei Song, Gaofei Song, Yonghong Bi   +8 more
doaj   +1 more source

Accumulation of Geosmin and 2-methylisoborneol in European Whitefish Coregonus Lavaretus and Rainbow Trout Oncorhynchus Mykiss in RAS [PDF]

, 2020
Geosmin (GSM) and 2-methylisoborneol (MIB)-induced off-flavors can cause serious problems in a recirculating aquaculture system (RAS), such as delayed harvest and increased production costs, but also damage producers’ reputation.
Kaseva, Janne, Koskela, Juha, Lindholm-Lehto, Petra, Vielma, Jouni   +3 more
core   +1 more source

Geosmin Biosynthesis. Mechanism of the Fragmentation−Rearrangement in the Conversion of Germacradienol to Geosmin [PDF]

Journal of the American Chemical Society, 2007
Geosmin (1) is responsible for the characteristic odor of moist soil. Incubation of farnesyl diphosphate (2, FPP) with recombinant Streptomyces coelicolor germacradienol/geosmin synthase generated geosmin (1), germacradienol (3), germacrene D (4), octalin 5, and acetone, which was trapped as 2,2-dimethylthiazolidine (9) by reaction with cysteamine. The
Jiaoyang, Jiang, David E, Cane
openaire   +2 more sources

Levels of Two Earthy and Musty Odor Compounds, 2-Methylisoborneol and Geosmin, in Wastewater and Concentration Variations during Treatment

Journal of Water and Environment Technology, 2023
We determined the concentrations of 2-methylisoborneol (2-MIB) and geosmin in final effluent from wastewater treatment plants in Kyoto City, Japan, investigating variations during treatment.
Ko Hosoda, Yasutaka Yasui, Mitsuharu Nishikawa, Kento Iwatani, Tomoyuki Ohara, Syunichiro Fujiwara, Toshiharu Segawa   +6 more
doaj   +1 more source

Construction and application of the genome-scale metabolic model of Streptomyces radiopugnans

Frontiers in Bioengineering and Biotechnology, 2023
Geosmin is one of the most common earthy-musty odor compounds, which is mainly produced by Streptomyces. Streptomyces radiopugnans was screened in radiation-polluted soil, which has the potential to overproduce geosmin.
Zhidong Zhang, Zhidong Zhang, Qi Guo, Jinyi Qian, Chao Ye, He Huang, He Huang   +6 more
doaj   +1 more source

Geosmin Biosynthesis in Streptomyces avermitilis. Molecular Cloning, Expression, and Mechanistic Study of the Germacradienol/Geosmin Synthase [PDF]

The Journal of Antibiotics, 2006
Geosmin (1) is responsible for the characteristic odor of moist soil. The Gram-positive soil bacterium Streptomyces avermitilis produces geosmin (1) as well as its precursor germacradienol (3). The S. avermitilis gene SAV2163 (geoA) is extremely similar to the S. coelicolor A3(2) SCO6073 gene that encodes a germacradienol/geosmin synthase.
David E, Cane, Xiaofei, He, Seiji, Kobayashi, Satoshi, Omura, Haruo, Ikeda   +4 more
openaire   +2 more sources

The Ubiquitous Soil Terpene Geosmin Acts as a Warning Chemical

Applied and Environmental Microbiology, 2022
One of the key chemicals that give soil its earthy aroma, geosmin is a frequent water contaminant produced by a range of unrelated microbes. Many animals, including humans, are able to detect geosmin at minute concentrations, but the benefit that this ...
Liana Zaroubi, Imge Ozugergin, Karina Mastronardi, A. Imfeld, Christopher Law, Y. Gélinas, A. Piekny, Brandon L. Findlay   +7 more
semanticscholar   +1 more source