Results 1 to 10 of about 1,038 (126)

Biochemical Characterization and Homology Modeling of Methylbutenol Synthase and Implications for Understanding Hemiterpene Synthase Evolution in Plants [PDF]

Journal of Biological Chemistry, 2011
2-Methyl-3-buten-2-ol (MBO) is a five-carbon alcohol produced and emitted in large quantities by many species of pine native to western North America. MBO is structurally and biosynthetically related to isoprene and can have an important impact on regional atmospheric chemistry.
Dennis W, Gray, Steven R, Breneman, Lauren A, Topper, Thomas D, Sharkey   +3 more
openaire   +2 more sources

New Coumarin-Hemiterpene Ether Glucosides and a Structurally Related Phenylpropanoic Acid Derivative from Artemisia Armeniaca [PDF]

Natural Product Communications, 2010
Two new coumarin-hemiterpene ether glucosides, 4’- O-(β-D-glucopyranosyl) desoxylacarol (1), and 5- O-(β-D-glucopyranosyl) lacarol (2), were isolated from the methanolic extract of the aerial parts of Artemisia armeniaca Lam. Their structures were established by means of spectroscopic analysis including 1
Mojarrab, Mahdi, Delazar, Abbas, Hamburger, Matthias, Potterat, Olivier   +3 more
openaire   +3 more sources

Hymenosides A-F, Six New Hemiterpene Glucosides from the Japanese Fern Hymenophyllum barbatum.

Chemical and Pharmaceutical Bulletin, 2001
In the course of investigation of the bitter-tasting substances of the Japanese fern Hymenophyllum barbatum belonging to the family Hymenophyllaceae, six new hemiterpene glucosides called hymenosides A-F (1-6) have been isolated from the methanol extract, together with an acyclic bis-bibenzyl derivative, perrottetin H.
OISO, Yasushi, TOYOTA, Masao, ASAKAWA, Yoshinori   +2 more
openaire   +4 more sources

Research progress on the mechanism of apple aroma formation and the mapping of key genes

Guoshu xuebao
As China's most significant fruit crop, apple leads the world in both cultivation area and production, and have long been the country's top fruit export.
HAN Yang, HUANG Jinfeng, LÜ Tianxing, WANG Dongmei, YAN Zhongye, YANG Feng, WANG Yingda, KONG Xiaohong, JIANG Xiaojun, LIU Zhi   +9 more
doaj   +1 more source

New Bitter-Tasting Hemiterpene Glycosides from the Japanese Fern Hymenophyllum barbatum.

Chemical and Pharmaceutical Bulletin, 2001
Hymenosides G--J were newly isolated from the Japanese fern Hymenophyllum barbatum, in addition to hymenosides A--F. The structures of hymenosides were elucidated by extensive two-dimensional nuclear magnetic resonance and/or chemical evidence. The structures of those aglycones were divided into three types, 1,4-dihydroxy-2-hydroxymethyl-but-2-ene, 1,4-
TOYOTA, Masao, OISO, Yasushi, ASAKAWA, Yoshinori   +2 more
openaire   +3 more sources

Plant-Origin Coumarin-Hemiterpene Ethers and Their Chemotaxonomic Significance

Jundishapur Journal of Natural Pharmaceutical Products
Context: A particular class of coumarins, known as coumarin-hemiterpene ethers (CHEs), consists of a coumarin nucleus and a prenyloxy portion. No detailed report on natural coumarin-hemiterpene ethers (NCHEs) and their plant sources is available.
Saba Rahimi Bahoosh, Mahdi Mojarrab
openaire   +1 more source

Bacterial Degradation of tert-Amyl Alcohol Proceeds via Hemiterpene 2-Methyl-3-Buten-2-ol by Employing the Tertiary Alcohol Desaturase Function of the Rieske Nonheme Mononuclear Iron Oxygenase MdpJ [PDF]

Journal of Bacteriology, 2011
Tertiary alcohols, such as tert-butyl alcohol (TBA) and tert-amyl alcohol (TAA) and higher homologues, are only slowly degraded microbially. The conversion of TBA seems to proceed via hydroxylation to 2-methylpropan-1,2-diol, which is further oxidized to 2-hydroxyisobutyric acid. By analogy, a branched pathway is expected for the degradation of TAA, as
Judith, Schuster, Franziska, Schäfer, Nora, Hübler, Anne, Brandt, Mònica, Rosell, Claus, Härtig, Hauke, Harms, Roland H, Müller, Thore, Rohwerder   +8 more
openaire   +2 more sources

The diversion of 2‐C‐methyl‐d‐erythritol‐2,4‐cyclodiphosphate from the 2‐C‐methyl‐d‐erythritol 4‐phosphate pathway to hemiterpene glycosides mediates stress responses in Arabidopsis thaliana [PDF]

The Plant Journal, 2015
Summary2‐C‐Methyl‐d‐erythritol‐2,4‐cyclodiphosphate (MEcDP) is an intermediate of the plastid‐localized 2‐C‐methyl‐d‐erythritol‐4‐phosphate (MEP) pathway which supplies isoprenoid precursors for photosynthetic pigments, redox co‐factor side chains, plant volatiles, and phytohormones.
Gonzalez-Cabanelas, D., Wright, L.P., Paetz, C., Onkokesung, N., Gershenzon, J., Rodriguez-Concepcion, M., Phillips, M.A.   +6 more
openaire   +4 more sources

Melanogenesis Inhibitory Activities of Iridoid-, Hemiterpene-, and Fatty Acid-glycosides from the Fruits of Morinda citrifolia (Noni)

Journal of Oleo Science, 2010
A new iridoid glycoside, 9-epi-6alpha-methoxy geniposidic acid (4), three new hemiterpene glycosides, 3-methylbut-3-enyl 2'-O-(beta-D-glucopyranosyl)-beta-D-glucopyranoside (nonioside K) (6), 3-methylbut-3-enyl 6'-O-(beta-D-xylopyranosyl)-beta-D-glucopyranoside (nonioside L) (8), and 3-methylbut-3-enyl 6'-O-(beta-D-xylofuranosyl)-beta-D-glucopyranoside
Akihisa, Toshihiro, Seino, Ken-ichi, Kaneko, Etsuyo, Watanabe, Kensuke, Tochizawa, Shun, Fukatsu, Makoto, Banno, Norihiro, Metori, Koichi, Kimura, Yumiko   +8 more
openaire   +3 more sources

Development of a transcription factor-based biosensor strain for reporting α-terpineol production via the alcohol-dependent hemiterpene pathway in Escherichia coli

RSC Chemical Biology
Development of a genetically-encoded biosensor enabled reporting production of α-terpineol in an engineered E. coli strain.
Catherine A. Odhiambo, Isaac A. Ali, Gavin J. Williams   +2 more
openaire   +1 more source