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opennotspecifiedMay 2022View details →

Fig. 1. A in Bioactive terpenoids derived from plant endophytic fungi: An updated review (2011-2020)

Fig. 1. A) The proportions of terpenoids from endophytic fungi; B) the number of terpenoids reported in endophytic fungi; and, C) the most redundant endophytic fungi as terpeoid producers (2011–2020).

opennotspecifiedApr 2022View details →

Fig. 4 in Nardosinane-related antimicrobial terpenoids from Lemnalia sp. soft coral

Fig. 4. Comparison of the experimental ECD spectrum of 7 and the calculated ECD specta of the model molecules 7a (4S,5S,6R,7S,11S,12S,4′S,5′R,11′S), 7b (4S,5S,6R,7S,11S,12S,4′S,5′S,11′S), 7c (4R,5R,6S,7R,11R,12R,4′R,5′R,11′R) and 7d (4R,5R,6S,7R,11R,12R,4′R,5′S,11′R).

opennotspecifiedApr 2022View details →

Fig. 3 in Nardosinane-related antimicrobial terpenoids from Lemnalia sp. soft coral

Fig. 3. Comparison of the experimental ECD curve of 6 and the calculated ECD spectra of the model molecules 6a (4S,5S,6R,7S,11S,12S,4′S,5′S,6′R,11′R), 6b (4S,5S,6R,7S,11S,12S,4′R,5′R,6′S,11′S), 6c (4R,5R,6S,7R,11R,12R,4′S,5′S,6′R, 11′R) and 6d (4R,5R,6S,7R,11R,12R,4′R,5′R,6′S,11′S).

opennotspecifiedApr 2022View details →

Fig. 2 in Nardosinane-related antimicrobial terpenoids from Lemnalia sp. soft coral

Fig. 2. Key COSY (bold), HMBC (blue), and NOE (red) correlations of 6 and 7. (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)

Fig. 4 in Volatile metabolic profiling and functional characterization of four terpene synthases reveal terpenoid diversity in different tissues of Chrysanthemum indicum L

Fig. 4. Characterization of CiTPS enzymatic activity. (A) TIC of α-pinene produced in the root of C. indicum, the enzymatic products of CiTPS1 (without an MBP tag), the enzymatic products of CiTPS2 (pET-(-tp)-CiTPS2), and the negative control (GPP + boiled protein). (B) TIC of the corresponding metabolites produced in the root, the enzymatic products of CiTPS3 (without an MBP tag), and the negative control (FPP + boiled protein). (C) TIC of the enzymatic products of CiTPS4 (with GPP and FPP as substrate and without an MBP tag) and the negative control (GPP/FPP + boiled protein). TIC, total ion chromatogram.

Fig. 5 in Volatile metabolic profiling and functional characterization of four terpene synthases reveal terpenoid diversity in different tissues of Chrysanthemum indicum L

Fig. 5. Expression pattern analysis of CiTPSs in different tissues of C. indicum. (A–D) Expression pattern analysis of CiTPS1, CiTPS2, CiTPS3, and CiTPS4 in the root, stem, leaf, flower bud, and flower. Error bars represent the standard deviations between the three biological replicates. Different letters represent significant differences at P <0.05. (E) The corresponding products (volatile terpenoids) produced by CiTPS1, CiTPS2, CiTPS3 or CiTPS4 in C. indicum. n. d.: not detected; trace: 0–1 × 10 4 ng/mg, FW; +, 0.1–10 ng/mg, FW; + +, 10–100 ng/mg, FW; +++,>100 ng/mg, FW.

Fig. 3 in Volatile metabolic profiling and functional characterization of four terpene synthases reveal terpenoid diversity in different tissues of Chrysanthemum indicum L

Fig. 3. (A) Amino acid sequence alignments of CiTPS1, CiTPS2, CiTPS3, and CiTPS4 (unigene 0021,699, 0037,767, 0060,549, and 0062,052, respectively) and six TPSs from other plants. (B) Phylogenetic analysis of four TPSs from C. indicum and some TPSs from other plants. Detailed information, including plant names and GenBank identification numbers, are shown in Supplementary Table S3. Phylogenetic analysis was performed using the maximum likelihood method and the MEGA and ITOL tools (http://itol.embl.de/).

Fig. 1 in Volatile metabolic profiling and functional characterization of four terpene synthases reveal terpenoid diversity in different tissues of Chrysanthemum indicum L

Fig. 1. Volatile terpenoids in different tissues of C. indicum. (A) The representative total ion chromatogram of the root, stem, leaf, flower bud, and flower. (B) Heatmap of monoterpenoids and sesquiterpenoids in different tissues of C. indicum.

opennotspecifiedSep 2021View details →

Fig. 2 in Terpenoid and lipid profiles vary in different Phytophthora cactorum - strawberry interactions

Fig. 2. Heatmap visualization of tentatively identified metabolites differentially accumulated between treatments. Relative accumulation levels of individual samples are shown. Lowest: Blue. Highest: Red. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)

opennotspecifiedSep 2021View details →

Fig. 1 in Terpenoid and lipid profiles vary in different Phytophthora cactorum - strawberry interactions

Fig. 1. Principal component analysis of the metabolite profiles of the analysed samples. The two components explaining the largest proportion of the variance (28.2% for component 1 and 13.7% for component 2) in the data are shown. QC = quality control samples pooled from the experimental samples.

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Fig. 4 in Terpenoid and lipid profiles vary in different Phytophthora cactorum - strawberry interactions

Fig. 4. The profiles of three differentially accumulated lysophospholipids in F. vesca and F. × ananassa samples. The peak intensities of three most highly accumulated lysophospholipids are shown.

opennotspecifiedAug 2021View details →

Fig. 2 in Anti-phytopathogen terpenoid glycosides from the root bark of Chytranthus macrobotrys and Radlkofera calodendron

Fig. 2. Structures of compounds 1–12 isolated from the root bark of C. macrobotrys and R. calodendron together with structures of 13–18 isolated from the fruits of B. unijugata and B. welwitschii. 1–4 are previously undescribed terpenoid glycosides.

Fig. 7 in Bioactive terpenoid constituents from Eclipta prostrata

Fig. 7. Experimental ECD spectrum of 6 (black) compared with the calculated ECD spectra of 6 (red) and its enantiomer (blue). (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)

Fig. 5 in Bioactive terpenoid constituents from Eclipta prostrata

Fig. 5. Experimental ECD spectrum of 5 (black) compared with the calculated ECD spectra of 5 (red) and its enantiomer (blue). (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)

Fig. 3 in Bioactive terpenoid constituents from Eclipta prostrata

Fig. 3. Experimental ECD spectrum of 1 (black) compared with the calculated ECD spectra of 1 (red) and its enantiomer (blue). (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)

Fig. 2 in Terpenoid profiles of resin in the genus Dracaena are species specific

Fig. 2. Heat map of 20 terpenic volatiles (columns) identified by SPME-GC × GC-MS analyses in five species (rows) of the Dracaena spp. The dendrograms were created using correlation-based distances and the Ward method of hierarchical clustering (P <0.05). Columns are coloured according to chemical class (light orange = monoterepenes M1-8, dark orange = sesquiterpenes S1-12, Table 1). Key: C – Dracaena draco subsp. draco from Canary Islands; E − D. ombet from Ethiopia; M – D. draco subsp. ajgal from Marocco; O – D. serrulata from Oman; S – D. cinnabari from Socotra. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)

Fig. 3 in Terpenoid profiles of resin in the genus Dracaena are species specific

Fig. 3. Principal component analyses (PCA) of transformed GC × GC-MS data of eight monoterpenes (M) identified in Dracaena spp. resin. (A) Variables factor map represents projection of variables (M1-8, Table 1) on the plane defined by the first two principal components. (B) Hierarchical clustering is score plot describing the species and their clustering. Coloured boxes indicate particular clusters. Key: C – Dracaena draco subsp. draco from Canary Islands; E − D. ombet from Ethiopia; M – D. draco subsp. ajgal from Marocco; O – D. serrulata from Oman; S – D. cinnabari from Socotra.

Fig. 1 in Terpenoid profiles of resin in the genus Dracaena are species specific

Fig. 1. Detail of SPME-GC × GC-MS analysis of Dracaena spp. terpenes. (A) Dracaena draco subsp. draco from Canary Islands, (B) D. draco subsp. ajgal from Marocco, (C) D. ombet from Ethiopia, (D) D. cinnabari from Socotra, (E) D. serrulata from Oman. Each dot represents one compound. The numbering corresponds to Table 1. The intensity of the signals is colour-coded from blue (zero) to red (maximum). (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)

opennotspecifiedJan 2021View details →

Fig. 7 in Early transcriptional response of terpenoid metabolism to Colletotrichum gloeosporioides in a resistant wild strawberry Fragaria nilgerrensis

Fig. 7. Phylogenetic relationship of the five FnTPS candidates with other known terpene synthases and a sequence alignment showing the conserved protein motifs. (A) A maximum-likelihood tree of the TPS proteins depicting the TPS-a, TPS-b, TPS-d, TPS-e/f, and TPS-g clades, with bootstrap values greater than 50% shown for the branching. The scale bar corresponds to 6% amino acid substitution. The five F. nilgerrensis proteins are in red. Selected proteins with available three-dimensional structural data are shown in bold using their PDB code followed by the abbreviated species name. The known enzymatic products are in light blue followed with the UniProt Accession numbers of the proteins. (B) Alignment of the five candidates FnTPSs with α-farnesene synthase from apple (Malus domestica) and α-bergamotene synthase from Lavender (Lavandula Angustifolia). The DxDD motif of typical class II terpene synthases in FnTPS6 is boxed and the highly conserved class I DDxxD as well as the lesser conserved RRx8W and NSE/DTE motifs are indicated. The color regime of amino acids is set in Bioedit version 7.2.6. (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)