scholarly journals Biochemical and Histochemical Localization of Monoterpene Biosynthesis in the Glandular Trichomes of Spearmint (Mentha spicata)

1989 ◽  
Vol 89 (4) ◽  
pp. 1351-1357 ◽  
Author(s):  
Jonathan Gershenzon ◽  
Massimo Maffei ◽  
Rodney Croteau
Keyword(s):  
Glandular Trichomes ◽  
Histochemical Localization ◽  
Mentha Spicata ◽  
Monoterpene Biosynthesis

Glandular trichomes, histochemical localization of secretion, and essential oil composition inPlectranthus grandidentatusgrowing in Portugal

2013 ◽  
Vol 28 (6) ◽  
pp. 393-401 ◽  
Author(s):  
Luísa Mota ◽  
Ana Cristina Figueiredo ◽  
Luis G. Pedro ◽  
José G. Barroso ◽  
Lia Ascensão
Keyword(s):  
Essential Oil ◽  
Glandular Trichomes ◽  
Essential Oil Composition ◽  
Histochemical Localization ◽  
Oil Composition

scholarly journals Developmental Regulation of Monoterpene Biosynthesis in the Glandular Trichomes of Peppermint

2000 ◽  
Vol 122 (1) ◽  
pp. 215-224 ◽  
Author(s):  
Marie E. McConkey ◽  
Jonathan Gershenzon ◽  
Rodney B. Croteau
Keyword(s):  
Developmental Regulation ◽  
Glandular Trichomes ◽  
Monoterpene Biosynthesis

scholarly journals The mevalonate pathway contributes to monoterpene production in peppermint

2020 ◽  
Author(s):  
Somnath Koley ◽  
Eva Grafahrend-Belau ◽  
Manish L. Raorane ◽  
Björn H. Junker
Keyword(s):  
Metabolic Flux ◽  
Mevalonate Pathway ◽  
Glandular Trichomes ◽  
Quantitative Description ◽  
Pentose Phosphate ◽  
Mep Pathway ◽  
Flux Analysis ◽  
Mva Pathway ◽  
Isoprenoid Metabolism ◽  
Monoterpene Biosynthesis

ABSTRACTPeppermint produces monoterpenes which are of great commercial value in different traditional and modern pharmaceutical and cosmetic industries. In the classical view, monoterpenes are synthesized via the plastidic 2-C-methyl-D-erythritol 4-phosphate (MEP) pathway, while the cytosolic mevalonate (MVA) pathway produces sesquiterpenes. Interactions between both pathways have been documented in several other plant species, however, a quantitative understanding of the metabolic network involved in monoterpene biosynthesis is still lacking. Isotopic tracer analysis, steady state 13C metabolic flux analysis (MFA) and pathway inhibition studies were applied in this study to quantify metabolic fluxes of primary and isoprenoid metabolism of peppermint glandular trichomes (GT). Our results offer new insights into peppermint GT metabolism by confirming and quantifying the crosstalk between the two isoprenoid pathways towards monoterpene biosynthesis. In addition, a quantitative description of precursor pathways involved in isoprenoid metabolism is given. While glycolysis was shown to provide precursors for the MVA pathway, the oxidative bypass of glycolysis fueled the MEP pathway, indicating prominent roles for the oxidative branch of the pentose phosphate pathway and RuBisCO. This study reveals the potential of 13C-MFA to ascertain previously unquantified metabolic routes of the trichomes and thus advancing insights on metabolic engineering of this organ.

An investigation into the ultrastructure and histochemistry of glandular trichomes of johnsongrass [Sorghum halepense (L.) Pers.] leaves

1992 ◽  
Vol 50 (1) ◽  
pp. 842-843 ◽  
Author(s):  
R. N. Paul ◽  
C. G. McWhorter ◽  
J.C. Ouzts
Keyword(s):  
Glandular Trichomes ◽  
Sorghum Halepense ◽  
Secretory Apparatus

Secretory trichomes have been described on johnsongrass leaves previously, but there is little knowledge of their ultrastructure or the nature of their secretion. Since johnsongrass is a pernicious weed, there is much interest in the nature of compounds found on its foliar surface, and the possible effect of these extrusions on herbicide efficiency. This report describes the results of an investigation into the ultrastructure of the secretory apparatus, and into the nature of the secretion.

Hop pellets type 90: ESEM studies of glandular trichomes morphological and structural changes during the different phases of hop processing

2011 ◽  
Vol 40 (2) ◽  
pp. 282-290 ◽  
Author(s):  
S. Srečec ◽  
V. Zechner-Krpan ◽  
S. Marag ◽  
G. Mršić ◽  
I. Špoljarić
Keyword(s):  
Structural Changes ◽  
Glandular Trichomes
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